Directional air purification device in pig farm breeding area

By using a multi-stage gear reduction mechanism and transmission cylinder linkage design for the air directional purification device in the pig farm's breeding area, quantitative trapping and automatic cleaning of flying insects are achieved, solving the problems of inaccurate trapping and inconvenient maintenance in existing technologies, and improving the purification effect and equipment stability.

CN224419658UActive Publication Date: 2026-06-30YULIN CITY ANIMAL DISEASE PREVENTION & CONTROL CENT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YULIN CITY ANIMAL DISEASE PREVENTION & CONTROL CENT
Filing Date
2025-08-11
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of air purification device technology, specifically to a directional air purification device for pig farm breeding areas. It includes a mounting block with an outer cover and an inner cover fixedly connected to its two ends. A mounting frame is fixedly connected to the center of the inner cover, and a bidirectional servo motor is mounted on the mounting frame. Multiple fan blades are fixedly connected to the output end of the bidirectional servo motor near the outer cover. An attraction cylinder is fixedly connected to the center of the inner cover. A storage tank for storing insect-attracting liquid is fixedly connected to the upper end of the inner cover, and a drain pipe is fixedly connected to the lower end of the storage tank. A drive assembly is located on one side of the inner cover, and the drive assembly is connected to the output end of the bidirectional servo motor away from the fan blades. Compared to existing technologies, this application solves the problems of weak insect-attracting function, inaccurate insect-attracting methods, and inconvenient maintenance in existing technologies.
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Description

Technical Field

[0001] This utility model relates to the field of purification device technology, and in particular to a directional air purification device for the breeding area of ​​a pig farm. Background Technology

[0002] In the breeding area of ​​pig farms, the high organic matter content of feces, urine, and animal secretions easily attracts large numbers of flying insects (such as mosquitoes and flies). These insects hovering and resting on the pigs' bodies not only severely disrupt the normal behavior and mating of boars and sows, reducing mating success rates, but also pose a significant risk of carrying and spreading various pathogens, leading to cross-infection of diseases within the pig herd. In particular, the risk of reproductive system diseases (such as porcine reproductive and respiratory syndrome (PRRS) and parvovirus infection) increases significantly. Therefore, effective control of flying insects is a crucial step in ensuring a hygienic environment in the breeding area and improving reproductive efficiency.

[0003] However, most existing air purification devices in pig farms only focus on odor purification and ventilation, and generally lack structural designs specifically for attracting and capturing flying insects. Even if some devices are equipped with simple electric mosquito swatters or flypaper, their insect-attracting effect relies on natural diffusion, which is difficult to control precisely. Furthermore, the sticky structure has limited trapping capacity, requires frequent maintenance, and does not have a quantitative attraction function, resulting in unsatisfactory insect control and even secondary pollution caused by the rotting of insects.

[0004] Furthermore, we have disclosed a directional air purification device for the breeding area of ​​pig farms to meet the practical needs of existing technologies, which suffer from weak insect trapping capabilities, inaccurate insect-attracting methods, and inconvenient maintenance. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a directional air purification device for the breeding area of ​​pig farms, so as to solve the problems of weak insect trapping function, inaccurate insect trapping methods and inconvenient maintenance in the existing technology.

[0006] Based on the above objectives, this utility model provides a directional air purification device for the breeding area of ​​a pig farm, including a mounting block. An outer cover and an inner cover are fixedly connected to both ends of the mounting block, respectively. A mounting frame is fixedly connected to the middle of the inner cover, and a bidirectional servo motor is mounted on the mounting frame. Multiple fan blades are fixedly connected to the output end of the bidirectional servo motor near the outer cover. An attraction cylinder is fixedly connected to the middle of the inner cover. A storage tank for storing insect-attracting induction liquid is fixedly connected to the upper end of the inner cover. A drain pipe is fixedly connected to the lower end of the storage tank. A drive assembly is provided on one side of the inner cover. The drive assembly is connected to the output end of the bidirectional servo motor away from the fan blades. The drive assembly is used to control the induction liquid inside the storage tank to be discharged to the surface of the attraction cylinder through the drain pipe. A baffle frame is bolted to the side of the inner cover away from the mounting block. The surface of the baffle frame is provided with adhesive for sticking insects.

[0007] Preferably, the drive assembly includes a mounting plate fixedly connected inside the inner cover near the mounting block. A first drive gear is disposed in the middle of the mounting plate. The middle of one side of the first drive gear is fixedly connected to the output end of the bidirectional servo motor away from the fan blade. A first driven gear is meshed with one side of the first drive gear. A second drive gear is fixedly connected to one end of the first driven gear. A second driven gear is meshed with one side of the second drive gear. A stabilizer is fixedly connected to the middle of the mounting plate away from the first driven gear. The second driven gear is rotatably engaged with the stabilizer.

[0008] Preferably, a cam is provided on the side of the second driven gear away from the first driving gear. The cam is fixedly connected to the second driven gear. The cam is located inside the suction cylinder. The upper end of the outer wall of the cam contacts a push rod. The upper end of the push rod passes through the suction cylinder and extends into the interior of the drain pipe.

[0009] Preferably, a sealing plate is fixedly connected to the upper end of the push rod. The sealing plate is located inside the drain pipe. The upper and lower ends of the drain pipe are cylindrical, and the middle part is conical. A baffle is fixedly connected to the upper end of the inner wall of the lower cylindrical part of the drain pipe. The sealing plate is located above the baffle. The diameter of the sealing plate is the same as the inner diameter of the lower cylindrical part of the drain pipe. A return spring is fixedly connected to the lower end face of the sealing plate. The lower end of the return spring is fixedly connected to the inner bottom surface of the drain pipe, and the return spring is sleeved on the outside of the push rod.

[0010] Preferably, the lower end of the outer wall of the drain pipe is provided with a plurality of leakage holes evenly spaced apart, and the lower end of the drain pipe is located at the upper end of the suction tube.

[0011] Preferably, a transmission cylinder is fixedly connected to the end face of the cam away from the stabilizer, and an arc-shaped rod is provided in the middle of the baffle frame. One end of the arc-shaped rod, located at the center of the baffle frame, is connected to the transmission cylinder by a locking screw.

[0012] Preferably, the locking screw does not contact the baffle frame, and the corner of the contact surface between the arc-shaped rod and the baffle frame is rounded.

[0013] The beneficial effects of this utility model are:

[0014] 1. The air-directional purification device in the breeding area of ​​this pig farm is equipped with a drain pipe assembly for storing and releasing inducing liquid. A cam is driven to rotate slowly through a multi-stage gear reduction mechanism. Only when the cam rotates to its highest point does it push the top rod, causing the sealing plate to move upward briefly. The inducing liquid drips evenly from multiple leakage holes at the lower end of the drain pipe into the inside of the suction cylinder. The inner wall of the suction cylinder is equipped with an adhesive mesh surface, which continuously releases odors and traps flying insects. Compared with the problems of single attraction methods and uncontrollable release in existing technologies, this structure can realize periodic and quantitative release of inducing liquid, ensuring that flying insects are continuously attracted while avoiding waste of inducing liquid, significantly improving insect attraction efficiency and economic efficiency.

[0015] 2. The directional air purification device in the breeding area of ​​this pig farm connects a transmission cylinder to the end of a cam and links it to an arc-shaped rod installed on the baffle frame. The rotation of the transmission cylinder drives the arc-shaped rod to slowly rotate along the inner wall of the baffle frame, forming a scraping motion trajectory. This automatically cleans up flying insects and impurities adhering to the surface of the baffle frame. This cleaning process does not require manual disassembly of the baffle frame or manual handling, which greatly reduces the labor intensity of maintenance. At the same time, it prevents the decay of insects from affecting the trapping effect. This structure effectively solves the problems of difficulty in timely cleaning of captured flying insects and poor persistence of adhesion effect in existing technologies, and significantly improves the stability and automation level of the device operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the drain pipe of this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] The diagram is marked as follows:

[0023] 1. Outer casing; 2. Mounting block; 3. Inner casing; 4. Liquid storage tank; 5. Baffle frame; 6. Arc rod; 7. Suction cylinder; 8. Mounting frame; 9. Fan blade; 10. Bidirectional servo motor; 11. Mounting plate; 12. First driving gear; 13. First driven gear; 14. Second driving gear; 15. Second driven gear; 16. Stabilizer; 17. Drain pipe; 18. Cam; 19. Baffle; 20. Sealing plate; 21. Push rod; 22. Return spring; 23. Leakage hole; 24. Transmission cylinder. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 5 As shown, the air directional purification device in the breeding area of ​​the pig farm includes a mounting block 2. An outer cover 1 and an inner cover 3 are fixedly connected to both ends of the mounting block 2. An mounting frame 8 is fixedly connected to the middle of the inner part of the outer cover 1. A bidirectional servo motor 10 is mounted on the mounting frame 8. Multiple fan blades 9 are fixedly connected to the output end of the bidirectional servo motor 10 near the outer cover 1. An attraction cylinder 7 is fixedly connected to the middle of the inner cover 3. A storage tank 4 for storing insect attraction induction liquid is fixedly connected to the upper end of the inner cover 3. A drain pipe 17 is fixedly connected to the lower end of the storage tank 4. A drive component is provided on one side of the inner cover 3. The drive component is connected to the output end of the bidirectional servo motor 10 away from the fan blades 9. The drive component is used to control the induction liquid inside the storage tank 4 to be discharged to the surface of the attraction cylinder 7 through the drain pipe 17. A baffle frame 5 is bolted to the side of the inner cover 3 away from the mounting block 2. The surface of the baffle frame 5 is provided with adhesive liquid for sticking insects.

[0027] The device comprises an outer casing 1, an inner casing 3, a fan blade assembly 9, a drive assembly, a suction cylinder 7, a drain pipe 17, and a baffle frame 5. The drive assembly, via a bidirectional servo motor 10, drives a multi-stage gear system to slowly rotate a cam 18, thereby achieving timed and quantitative release of the attractant liquid. Simultaneously, the cam 18 is linked to a transmission cylinder 24 at its end, causing the arc-shaped rod 6 connected to it to automatically rotate within the baffle frame 5, thus achieving timed cleaning of areas where flying insects adhere. The drain pipe 17, in conjunction with the top rod 21, sealing plate 20, and return spring 22, opens the channel to discharge the attractant liquid only when the cam 18 reaches its highest point, effectively controlling the release rhythm. The overall structure is compact and well-coordinated, possessing combined functions such as directional purification, automatic insect attraction, and cleaning, making it particularly suitable for the continuous improvement of the air environment in pig farm breeding areas.

[0028] Furthermore, such as Figures 1 to 5 As shown, the drive assembly includes a mounting plate 11 fixedly connected inside the inner cover 3 near the mounting block 2. A first drive gear 12 is disposed in the middle of the mounting plate 11. The middle of one side of the first drive gear 12 is fixedly connected to the output end of the bidirectional servo motor 10 away from the fan blade 9. A first driven gear 13 is meshed with one side of the first drive gear 12. A second drive gear 14 is fixedly connected to one end of the first driven gear 13. A second driven gear 15 is meshed with one side of the second drive gear 14. A stabilizer 16 is fixedly connected to the middle of the mounting plate 11 away from the first driven gear 13. The second driven gear 15 is rotatably connected to the stabilizer 16. A cam 18 is disposed on the side of the second driven gear 15 away from the first drive gear 12. The cam 18 is fixedly connected to the second driven gear 15. The cam 18 is located at the suction... Inside the suction cylinder 7, the upper end of the outer wall of the cam 18 contacts the push rod 21. The upper end of the push rod 21 passes through the suction cylinder 7 and extends into the interior of the drain pipe 17. The upper end of the push rod 21 is fixedly connected to the sealing plate 20. The sealing plate 20 is located inside the drain pipe 17. The upper and lower ends of the drain pipe 17 are cylindrical and the middle part is conical. The upper end of the inner wall of the lower end of the cylinder of the drain pipe 17 is fixedly connected to the baffle 19. The sealing plate 20 is located at the upper end of the baffle 19. The diameter of the sealing plate 20 is the same as the inner diameter of the lower end of the cylinder of the drain pipe 17. The lower end of the sealing plate 20 is fixedly connected to the return spring 22. The lower end of the return spring 22 is fixedly connected to the inner bottom surface of the drain pipe 17. The return spring 22 is sleeved on the outside of the push rod 21. Multiple leakage holes 23 are evenly spaced at the lower end of the outer wall of the drain pipe 17. The lower end of the drain pipe 17 is located at the upper end of the suction cylinder 7.

[0029] The aforementioned drive assembly, driven by a bidirectional servo motor 10, utilizes a multi-stage gear and cam 18 structure to achieve precise control and mechanical quantitative release of the inducing fluid discharge process. Specifically, the motor output shaft first drives the first driving gear 12 on the mounting plate 11 to rotate. This gear meshes and drives the first driven gear 13, the second driving gear 14, and the second driven gear 15 to rotate sequentially, forming a four-stage reduction transmission structure. Through multi-stage gear transmission, the rotational speed of the final driving cam 18 can be significantly reduced, enabling the cam 18 to achieve a slow and stable rotation process, thus facilitating precise control of the discharge rhythm. The cam 18, located on the second driven gear 15, rotates accordingly, and its eccentric profile contacts the lower end of the push rod 21. Only when the cam 18 rotates to the highest point of its profile will it momentarily lift the cam located on the discharge pipe. The top rod 21 inside 17 and the sealing plate 20 connected to its upper end move upward against the tension of the return spring 22, temporarily disengaging from the baffle 19, allowing the attractant liquid in the drain pipe 17 to be discharged from multiple leakage holes 23 at the lower end, achieving short-term quantitative dripping. When the cam 18 continues to rotate past the highest point, the top rod 21 falls down, and the sealing plate 20 quickly returns to above the baffle 19 under the action of the spring, re-sealing the outlet of the drain pipe 17 and cutting off the flow path of the attractant liquid. This structure, through the principle of "high-point triggering drainage", ensures that the attractant liquid is released instantaneously only after the cam 18 rotates to a specific position each time, which effectively avoids continuous dripping and unnecessary evaporation of the attractant liquid, and realizes the periodic and intermittent supply of the insect attractant liquid, providing a reliable guarantee for the liquid-saving and insect-attracting effect of the device.

[0030] Furthermore, such as Figures 1 to 5 As shown, a transmission cylinder 24 is fixedly connected to the side end face of the cam 18 away from the stabilizer 16. An arc-shaped rod 6 is provided in the middle of the baffle frame 5. One end of the arc-shaped rod 6 and the center of the baffle frame 5 are connected to the transmission cylinder 24 by a locking screw. The locking screw does not contact the baffle frame 5. The corner of the contact surface between the arc-shaped rod 6 and the baffle frame 5 is provided with a rounded corner.

[0031] The above structure, through the linkage design of cam 18, transmission cylinder 24, and arc-shaped rod 6, realizes the automatic cleaning function of flying insects on the surface of the screen frame 5. The transmission cylinder 24, located on the end face of cam 18 away from the stabilizer 16, is fixedly connected to cam 18 and rotates synchronously with cam 18, forming an active cleaning power source. One end of the transmission cylinder 24 is connected to the arc-shaped rod 6 in the middle of the screen frame 5 via a locking screw, but this locking screw does not directly contact the screen frame 5 to avoid interfering with the flexible rotation of the arc-shaped rod 6. The arc-shaped rod 6 spans the middle of the screen frame 5, conforms to its inner wall, and... The corners of its contact surface are rounded to prevent scratching and damage to the screen during rotation, thus extending its service life. As the cam 18 drives the transmission cylinder 24 to rotate, the arc rod 6 rotates slowly on the surface of the screen frame 5, forming a sliding scraping path to automatically clean the flying insects, dust, or glue residue adhering to the screen. This cleaning process is completed by the existing power system inside the purification device, without the need for manual intervention or disassembly of the screen frame 5. This effectively improves the automation level and insect-attracting efficiency of the equipment, avoids the impact of screen blockage on normal use, and ensures the long-term stable operation of the trapping function.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A directional air purification device for a pig farm breeding area, comprising a mounting block (2), wherein an outer cover (1) and an inner cover (3) are fixedly connected to both ends of the mounting block (2), and a mounting frame (8) is fixedly connected to the middle of the inner part of the outer cover (1), wherein a bidirectional servo motor (10) is mounted on the mounting frame (8), and a plurality of fan blades (9) are fixedly connected to the output end of the bidirectional servo motor (10) near the outer cover (1), characterized in that: An attraction tube (7) is fixedly connected to the middle of the inner cover (3). A storage tank (4) for storing insect attraction liquid is fixedly connected to the upper end of the inner cover (3). A drain pipe (17) is fixedly connected to the lower end of the storage tank (4). A drive assembly is provided on one side of the inner cover (3). The drive assembly is connected to the output end of the bidirectional servo motor (10) away from the fan blade (9). The drive assembly is used to control the induction liquid inside the storage tank (4) to be discharged to the surface of the attraction tube (7) through the drain pipe (17). A baffle frame (5) is bolted to the side of the inner cover (3) away from the mounting block (2). The surface of the baffle frame (5) is provided with glue for sticking insects.

2. The hog-breeding area air directional purification device according to claim 1, characterized in that: The drive assembly includes a mounting plate (11) fixedly connected inside the inner cover (3) near the mounting block (2). A first drive gear (12) is provided in the middle of the mounting plate (11). The middle of one side of the first drive gear (12) is fixedly connected to the output end of the bidirectional servo motor (10) away from the fan blade (9). A first driven gear (13) is meshed with one side of the first drive gear (12). A second drive gear (14) is fixedly connected to one end of the first driven gear (13). A second driven gear (15) is meshed with one side of the second drive gear (14). A stabilizer (16) is fixedly connected to the middle of the mounting plate (11) away from the first driven gear (13). The second driven gear (15) is engaged and rotatably connected to the stabilizer (16).

3. The hog-breeding area air directional purification device according to claim 2, characterized in that: A cam (18) is provided on the side of the second driven gear (15) away from the first driving gear (12). The cam (18) is fixedly connected to the second driven gear (15). The cam (18) is located inside the suction cylinder (7). The upper end of the outer wall of the cam (18) contacts a push rod (21). The upper end of the push rod (21) passes through the suction cylinder (7) and extends into the interior of the drain pipe (17).

4. The hog-breeding area air directional purification device according to claim 3, characterized in that: A sealing plate (20) is fixedly connected to the upper end of the top rod (21). The sealing plate (20) is located inside the drain pipe (17). The upper and lower ends of the drain pipe (17) are cylindrical and the middle part is conical. A baffle (19) is fixedly connected to the upper end of the inner wall of the lower end cylinder of the drain pipe (17). The sealing plate (20) is located at the upper end of the baffle (19). The diameter of the sealing plate (20) is the same as the inner diameter of the lower end cylinder of the drain pipe (17). A return spring (22) is fixedly connected to the lower end face of the sealing plate (20). The lower end of the return spring (22) is fixedly connected to the inner bottom surface of the drain pipe (17), and the return spring (22) is sleeved on the outside of the top rod (21).

5. The hog-breeding area air directional purification device of claim 4, wherein: The lower end of the outer wall of the drain pipe (17) is provided with a plurality of leakage holes (23) evenly spaced apart, and the lower end of the drain pipe (17) is located at the upper end of the suction tube (7).

6. The hog-breeding area air directional purification device of claim 5, wherein: A transmission cylinder (24) is fixedly connected to the side end face of the cam (18) away from the stabilizer (16). An arc-shaped rod (6) is provided in the middle of the upper part of the baffle frame (5). One end of the arc-shaped rod (6) and located at the center of the baffle frame (5) is connected to the transmission cylinder (24) by a locking screw.

7. The hog-breeding area air directional purification device of claim 6, wherein: The locking screw does not contact the baffle frame (5), and the corner of the contact surface between the arc rod (6) and the baffle frame (5) is rounded.