A ventilation and purification device for a pig house
By using a pumping and vibration mechanism linked to a servo motor, the disinfectant solution in the pigsty ventilation and purification device is uniformly atomized and the filter plates are self-cleaned, solving the problem of the separation between the pigsty ventilation and disinfection systems and improving the equipment's operating efficiency and disinfection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO RUIHE AGRI & ANIMAL HUSBANDRY EQUIP CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-24
AI Technical Summary
The existing ventilation and disinfection systems in pigsties are fragmented, with filter plates prone to clogging and uneven disinfection, resulting in low equipment operating efficiency and significant risks to disease prevention and control.
The pumping and vibration mechanisms are linked by a servo motor to achieve uniform atomization of disinfectant and self-cleaning of the filter plate. High-frequency vibration self-cleaning of the filter plate is achieved through a synchronizing rod, cam and spring connector, combined with the coordinated work of the pumping mechanism and the ventilation fan.
It achieves integrated operation of ventilation, disinfection and self-cleaning, avoids filter plate clogging and disinfection dead corners, improves the continuous operation efficiency of the equipment and the uniformity of disinfection coverage, and improves the environmental quality of the pig house.
Smart Images

Figure CN224539065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation and purification technology, specifically a ventilation and purification device for pig farms. Background Technology
[0002] In large-scale pig farming, the quality of the pigsty environment directly affects livestock health and farming efficiency. Ventilation and purification, as a core aspect of environmental control, must simultaneously achieve air circulation, dust filtration, and pathogen elimination.
[0003] In existing technologies, pigsties generally employ independently operating ventilation and disinfection systems: ventilation equipment mostly relies on fans for forced air exchange, but dust carried by the incoming air easily clogs the filter devices, requiring frequent shutdowns for manual cleaning, severely impacting the continuous operating efficiency of the equipment; while disinfection systems often use fixed spray or fumigation equipment, whose atomized particles diffuse unevenly and have poor coordination with the ventilation airflow, resulting in many blind spots in disinfection coverage and low drug utilization. This functionally fragmented design not only increases equipment purchase and maintenance costs, but also makes it difficult to maintain a stable environmental microecology due to asynchronous operation, becoming a potential hidden danger for disease prevention and control. Therefore, this utility model proposes a ventilation and purification device for pigsties to solve the above problems. Utility Model Content
[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, such as fragmented ventilation and disinfection systems, easy clogging of filter plates, and uneven disinfection, a servo motor is used to link a pumping mechanism and a vibration mechanism. The pumping mechanism delivers disinfectant through an atomizing plate, while the vibration mechanism cleans the filter plates, achieving integrated ventilation, disinfection, and self-cleaning, thus avoiding filter clogging and disinfection dead zones.
[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a ventilation and purification device for pig farms, comprising a frame, the front and rear ends of which are open, two sets of ventilation fans fixedly connected to one open side of the frame, a filter plate fixedly connected inside the frame, a device box installed at the top inside the frame, two sets of connecting pipes installed outside the device box, and one-way valves installed inside each of the connecting pipes, one of which is fixedly connected to an atomizing plate at its end, and a pumping mechanism and a vibration mechanism installed inside the device box; The pumping mechanism is used to pump disinfectant to the atomizing plate, where it is dispersed into the pigsty by the wind generated by the ventilation fan. The vibration mechanism is used to clean dust adhering to the outer wall of the filter plate.
[0006] Preferably, the pumping mechanism includes a lead screw sleeve and a piston slidably connected in the device housing, a connecting rod fixedly connected to the lower end of the lead screw sleeve, and the other end of the connecting rod fixedly connected to the piston end face.
[0007] Preferably, a reciprocating lead screw is rotatably connected inside the device housing, a limit block is fixedly connected to the end of the reciprocating lead screw, and the lead screw sleeve is rotatably installed on the outer wall of the reciprocating lead screw.
[0008] Preferably, a synchronizing rod is rotatably connected within the frame, and two sets of cams are symmetrically arranged on the outer wall of the synchronizing rod, with the flanges of both sets of cams contacting the outer wall of the filter plate.
[0009] Preferably, two sets of transmission wheels are rotatably connected within the frame, the two sets of transmission wheels are interconnected by a transmission belt, and the two sets of transmission wheels are coaxially and fixedly connected to a reciprocating lead screw and a synchronizing rod, respectively.
[0010] Preferably, a servo motor is fixedly connected to the end face of the frame, the output shaft of the servo motor is coaxially fixedly connected to its adjacent transmission wheel, and the servo motor is located directly above the device box.
[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a ventilation and purification device for pig farms, which has the following beneficial effects: 1. This utility model achieves the high-frequency reciprocating vibration self-cleaning function of the filter plate through components such as a synchronizing rod, cam, and spring connector. It can remove dust and impurities attached to the surface of the filter plate without stopping the machine, effectively solving the problem of easy clogging of the filter device in the prior art, which requires frequent manual cleaning and affects the continuous operation efficiency of the equipment.
[0012] 2. This utility model achieves integrated operation of disinfection and ventilation by using the coordinated linkage of the pumping mechanism, reciprocating screw, piston, atomizing plate and ventilation fan to make the atomized disinfectant evenly diffuse with the ventilation airflow, effectively improving the problems of poor coordination between disinfection system and ventilation airflow, uneven diffusion of atomized particles leading to many dead corners in disinfection coverage and low agent utilization rate in the prior art. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a ventilation and purification device for pigsties proposed in this utility model; Figure 2 for Figure 1 Structural diagram; Figure 3 for Figure 1 Schematic diagram of components such as the central device box, transmission wheel, and atomizing plate; Figure 4 for Figure 3 Schematic diagram of cross-section structure; In the diagram: 1. Frame; 2. Ventilation fan; 3. Servo motor; 4. Connecting pipe; 5. Filter plate; 6. Device box; 7. Synchronizing rod; 8. Cam; 9. Atomizing plate; 10. Transmission wheel; 11. Transmission belt; 12. Reciprocating lead screw; 13. Limiting rod; 14. Lead screw sleeve; 15. Connecting rod; 16. Piston. Detailed Implementation
[0014] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0015] This utility model provides a technical solution for a ventilation and purification device for pig farms: Please see Figure 1-4 A ventilation and purification device for pig farms includes a frame 1, with open front and rear ends. Two sets of ventilation fans 2 are fixedly connected to one open side of the frame 1. A filter plate 5 is fixedly connected inside the frame 1. A device box 6 is installed on the top inside the frame 1. Two sets of connecting pipes 4 are installed outside the device box 6, and one-way valves are installed inside each of them. An atomizing plate 9 is fixedly connected to the end of one set of connecting pipes 4. A pumping mechanism and a vibration mechanism are installed inside the device box 6. The pumping mechanism is used to pump disinfectant to the atomizing plate 9, and the disinfectant is dispersed into the pigsty by the wind generated by the ventilation fan 2. The vibration mechanism is used to clean dust adhering to the outer wall of filter plate 5; Furthermore, the bottom surface of the atomizing plate 9 is evenly provided with several atomizing holes with a diameter of 0.5 to 1 mm, and the atomizing plate 9 is horizontally installed in the frame 1 between the filter plate 5 and the ventilation fan 2 to ensure that the atomized disinfectant can be evenly diffused with the airflow of the ventilation fan 2.
[0016] The pumping mechanism includes a lead screw sleeve 14 and a piston 16 that are slidably connected in the device box 6. A connecting rod 15 is fixedly connected to the lower end of the lead screw sleeve 14, and the other end of the connecting rod 15 is fixedly connected to the end face of the piston 16. Furthermore, the outer wall of piston 16 is fitted with a corrosion-resistant rubber sealing ring, and piston 16 slides and seals with the inner wall of device box 6, which can effectively prevent leakage of disinfectant during pumping. In use, one set of connecting pipes 4 is connected to an external container containing disinfectant.
[0017] A reciprocating lead screw 12 is rotatably connected inside the device box 6. A limit block is fixedly connected to the end of the reciprocating lead screw 12. The lead screw sleeve 14 is rotatably installed on the outer wall of the reciprocating lead screw 12. Furthermore, the thread helix angle of the reciprocating lead screw 12 is 8°-12°, and the inner wall of the lead screw sleeve 14 is provided with an internal thread that is compatible with the reciprocating lead screw 12, ensuring that the lead screw sleeve 14 can stably perform linear reciprocating motion along the reciprocating lead screw 12.
[0018] A synchronizing rod 7 is rotatably connected inside the frame 1. Two sets of cams 8 are symmetrically arranged on the outer wall of the synchronizing rod 7. The flanges of the two sets of cams 8 are in contact with the outer wall of the filter plate 5. Furthermore, the filter plate 5 is elastically connected to the inner wall of the frame 1 on both sides by spring connectors. When the cam 8 rotates, the filter plate 5 can reciprocate and vibrate with the push of the flange of the cam 8, thereby improving the dust cleaning effect.
[0019] Two sets of transmission wheels 10 are rotatably connected inside the frame 1. The two sets of transmission wheels 10 are connected to each other through a transmission belt 11. The two sets of transmission wheels 10 are coaxially and fixedly connected to the reciprocating lead screw 12 and the synchronizing rod 7, respectively. A servo motor 3 is fixedly connected to the end face of the frame 1. The output shaft of the servo motor 3 is coaxially and fixedly connected to its adjacent transmission wheel 10. The servo motor 3 is located directly above the device box 6.
[0020] In practical use, the working principle of this utility model is as follows: When the device is started, the servo motor 3, as the core power source, begins to run, and its output shaft drives the adjacent transmission wheel 10 to rotate synchronously. Since the two sets of transmission wheels 10 are connected by the transmission belt 11, the power is transmitted to the other set of transmission wheels 10 through the transmission belt 11, which in turn drives the reciprocating screw 12 and the synchronizing rod 7 to rotate simultaneously, realizing the synchronous linkage between the pumping mechanism and the vibration mechanism.
[0021] In the pumping mechanism, the rotation of the reciprocating screw 12 causes the screw sleeve 14 to reciprocate linearly along its axis. The screw sleeve 14 drives the piston 16 to slide synchronously back and forth within the device box 6 via the connecting rod 15. The corrosion-resistant rubber sealing ring on the outer wall of the piston 16 forms a sliding seal with the inner wall of the device box 6, effectively preventing disinfectant leakage. When the piston 16 moves upward, a negative pressure is generated inside the device box 6, drawing in disinfectant through a set of connecting pipes 4. When the piston 16 moves downward, the pressure inside the device box 6 increases, and the disinfectant is pressurized to the atomizing plate 9 through another set of connecting pipes 4. The 0.5-1mm atomizing holes on the bottom surface of the atomizing plate 9 atomize the disinfectant. Since the atomizing plate 9 is horizontally installed between the filter plate 5 and the ventilation fan 2, the atomized disinfectant can be evenly dispersed into the pigsty by the airflow generated by the ventilation fan 2, achieving air disinfection. At the same time, the rotation of the synchronizing rod 7 drives the two sets of cams 8 symmetrically arranged on its outer wall to rotate synchronously. During the rotation, the flanges of the cams 8 intermittently push against the outer wall of the filter plate 5, while the two sides of the filter plate 5 are elastically connected to the inner wall of the frame 1 through spring connectors. Under the alternating action of the pushing force of the cams 8 and the rebound force of the springs, the filter plate 5 generates high-frequency reciprocating vibration, causing the dust and impurities attached to the surface to be shaken off, realizing the self-cleaning of the filter plate 5 and avoiding dust blockage that affects ventilation efficiency. When the ventilation fan 2 is running continuously, outside air enters through the opening of the frame 1, first passing through the filter plate 5 to filter out large particles such as dust, and then the purified air enters the pigsty under the action of the ventilation fan 2. At the same time, the atomized disinfectant diffuses with the airflow, disinfecting the air entering the pigsty and the environment inside the pigsty, ultimately forming a closed-loop workflow of "ventilation - dust filtration - atomized disinfection - filter self-cleaning", which effectively improves the environmental quality of the pigsty.
[0022] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A ventilation and purification device for pigsties, comprising a frame (1), characterized in that: The front and rear ends of the frame (1) are open. Two sets of ventilation fans (2) are fixedly connected to one side of the frame (1). A filter plate (5) is fixedly connected inside the frame (1). A device box (6) is installed on the top inside the frame (1). Two sets of connecting pipes (4) are installed outside the device box (6), and one-way valves are installed inside each of them. An atomizing plate (9) is fixedly connected to the end of one set of connecting pipes (4). A pumping mechanism and a vibration mechanism are installed inside the device box (6). The pumping mechanism is used to pump disinfectant to the atomizing plate (9), and disperse it into the pigsty with the help of the wind generated by the ventilation fan (2); The vibration mechanism is used to clean dust adhering to the outer wall of the filter plate (5).
2. The ventilation and purification device for pigsties according to claim 1, characterized in that: The pumping mechanism includes a lead screw sleeve (14) and a piston (16) slidably connected in the device box (6). The lower end of the lead screw sleeve (14) is fixedly connected to a connecting rod (15), and the other end of the connecting rod (15) is fixedly connected to the end face of the piston (16).
3. The ventilation and purification device for pigsties according to claim 2, characterized in that: The device box (6) is rotatably connected to a reciprocating lead screw (12), and a limit block is fixedly connected to the end of the reciprocating lead screw (12). The lead screw sleeve (14) is rotatably installed on the outer wall of the reciprocating lead screw (12).
4. The ventilation and purification device for pigsties according to claim 3, characterized in that: The frame (1) is rotatably connected to a synchronizing rod (7), and two sets of cams (8) are symmetrically arranged on the outer wall of the synchronizing rod (7). The flanges of the two sets of cams (8) are in contact with the outer wall of the filter plate (5).
5. The ventilation and purification device for pigsties according to claim 4, characterized in that: Two sets of transmission wheels (10) are rotatably connected inside the frame (1). The two sets of transmission wheels (10) are connected to each other through a transmission belt (11). The two sets of transmission wheels (10) are coaxially fixedly connected to the reciprocating screw (12) and the synchronizing rod (7), respectively.
6. The ventilation and purification device for pigsties according to claim 5, characterized in that: A servo motor (3) is fixedly connected to the end face of the frame (1). The output shaft of the servo motor (3) is coaxially fixedly connected to its adjacent transmission wheel (10). The servo motor (3) is located directly above the device box (6).