Adjustable pig house ventilation device

Abstract

The utility model relates to an adjustable pig house ventilation device, and belongs to the technical field of livestock breeding equipment. The air outlets and the ventilation openings are arranged in a staggered manner, and the temperature and humidity sensor is linked with the controller, the motor, the rotating shaft, the deflector rod and the electromagnetic block, so that the temperature and humidity of the hog house can be monitored in real time and the position of the air volume adjusting plate can be automatically adjusted, and the ventilation openings in the surface of the air volume adjusting plate and the air outlets of the air bellow are staggered; the problem that a traditional fixed air duct is difficult to dynamically respond to temperature and humidity changes is solved, ventilation operation can be automatically carried out according to season alternation and day and night temperature difference, the problem of frequent manual adjustment is avoided, labor intensity is remarkably reduced, ammonia gas accumulation caused by insufficient ventilation can be prevented, and the ventilation efficiency is improved. And cold and hot stress reaction of animals caused by excessive cold air introduction can be avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of livestock breeding equipment, specifically relating to an adjustable pigsty ventilation device. Background Technology

[0002] With the rapid development of large-scale farming, pigsty environmental control technology has become a key element in ensuring animal health and improving farming efficiency. As the core equipment for pigsty environmental control, the performance of the ventilation system directly affects the temperature and humidity, concentration of harmful gases, and air circulation efficiency within the pigsty.

[0003] Currently, the most common ventilation devices for pigsties on the market are fixed exhaust fans and simple mechanical ventilation devices. These traditional exhaust fans mostly use fixed air duct designs, making it difficult to dynamically adjust the air volume according to the temperature and humidity inside the pigsty. Especially during seasonal changes or when there are large temperature differences between day and night, it is easy to cause insufficient or excessive ventilation, resulting in energy waste or stress reactions in animals. Most existing ventilation devices rely on manual operation of baffles to adjust the air intake, requiring farmers to frequently enter the pigsty to make adjustments, which increases workload and labor intensity. Utility Model Content

[0004] To overcome the limitations of conventional pigsty ventilation devices, which primarily employ fixed exhaust fans and simple mechanical ventilation systems, these traditional exhaust fans often use fixed duct designs, making it difficult to dynamically adjust airflow according to the temperature and humidity inside the pigsty. This is especially problematic during seasonal transitions or when there are large temperature differences between day and night, easily leading to insufficient or excessive ventilation, resulting in energy waste or stress in animals. Furthermore, most existing ventilation devices rely on manual operation of dampers to adjust the airflow, requiring frequent entry into the pigsty by farm workers, increasing workload and labor intensity. Therefore, this invention provides an adjustable pigsty ventilation device with staggered air outlets. With the ventilation design, the system uses temperature and humidity sensors linked with controllers, motors, shafts, levers, and electromagnetic blocks to monitor the temperature and humidity of the pigsty in real time and automatically adjust the position of the air volume regulating plate. This causes the ventilation openings on the surface of the air volume regulating plate to shift from the air box outlet to the air volume, thereby increasing or decreasing the ventilation volume. This solves the problem that traditional fixed air ducts cannot dynamically respond to changes in temperature and humidity. It can automatically perform ventilation operations according to seasonal changes and diurnal temperature differences, avoiding the problem of frequent manual adjustments and significantly reducing labor intensity. It can prevent ammonia accumulation caused by insufficient ventilation and avoid excessive cold air intake that could cause cold and heat stress in animals.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: An adjustable pigsty ventilation device mainly includes a wind box, a fan, a motor, an air volume regulating plate, guide rods, a support frame, a controller, a temperature and humidity sensor, a belt drive mechanism, a rotating shaft, a lever, and an electromagnetic block. The wind box contains a support frame, on which a motor is mounted. A fan is mounted on the motor's output shaft. An air inlet is provided on the side of the wind box near the fan, and multiple straight groove-shaped air outlets are equidistantly provided along a vertical plane on the side wall away from the fan. Two vertical guide rods are installed inside the wind box near the air outlets. A connecting sleeve is provided on the end face of the air volume regulating plate, allowing the air volume regulating plate to slide smoothly through the connecting sleeve. The air volume regulating plate is mounted on a guide rod. It has ventilation openings that are equidistant from the air outlet along the vertical plane. There are multiple ventilation holes equidistant from the horizontal plane between adjacent ventilation openings. The side ribs of the air volume regulating plate are provided with protrusions. The rotating shaft is installed inside the air box through a bearing seat. Its axis is parallel to the axis of the motor output shaft. One end of the rotating shaft is equipped with a lever for moving the protrusions upward. The other end is connected to the output shaft of the motor through a belt drive mechanism. The top of the air volume regulating plate is provided with an iron plate. The electromagnetic block is installed on the side wall of the air box, located directly above the iron plate. The controller and temperature and humidity sensor are installed on the outer wall of the air box. The temperature and humidity sensor, motor and controller are electrically connected.

[0006] The air outlet side of the air box is equipped with a flow guide shroud, and multiple downward-sloping flow guide plates are installed at equal intervals along the vertical direction inside the flow guide shroud.

[0007] The top and bottom of the air box are equipped with finned heating tubes that are electrically connected to the controller.

[0008] A protective net is installed at the air inlet of the bellows.

[0009] The bellows sidewall is equipped with an L-shaped connecting plate. The vertical surface of the connecting plate is fixed to the bellows sidewall by bolts, and the horizontal surface has a pre-set threaded hole.

[0010] The beneficial effects of this utility model are:

[0011] This invention employs a staggered arrangement of air outlets and vents. Through the linkage of temperature and humidity sensors with controllers, motors, rotating shafts, levers, and electromagnetic blocks, it can monitor the temperature and humidity of the pigsty in real time and automatically adjust the position of the air volume regulating plate. This causes the vents on the surface of the air volume regulating plate to shift from the air box outlets, thereby increasing or decreasing the ventilation volume. This solves the problem that traditional fixed air ducts cannot dynamically respond to changes in temperature and humidity. It can automatically perform ventilation operations according to seasonal changes and diurnal temperature differences, avoiding the problem of frequent manual adjustments and significantly reducing labor intensity. It can prevent ammonia accumulation caused by insufficient ventilation and avoid excessive cold air intake that could cause cold and heat stress in animals. Attached Figure Description

[0012] Figure 1 This is the isometric drawing of this utility model.

[0013] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0014] Figure 3 This is a three-dimensional schematic diagram of the internal structure of this utility model.

[0015] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0016] Figure 5 This is a cross-sectional view of the present invention.

[0017] Figure 6 This is another sectional view of this utility model.

[0018] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle.

[0019] Figure 8 This is a 3D schematic diagram of the airflow regulating panel in the closed state. Detailed Implementation

[0020] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0021] This utility model discloses an adjustable pigsty ventilation device, which mainly includes a wind box 1, a fan 2, a motor 3, an air volume regulating plate 4, guide rods 5, a support frame 6, a controller 7, a temperature and humidity sensor 8, a belt drive mechanism 9, a rotating shaft 12, a lever 13, and an electromagnetic block 14. The support frame 6 is installed inside the wind box 1, and the motor 3 is mounted on the support frame 6. The fan 2 is mounted on the output shaft of the motor 3. An air inlet 101 is provided inside the wind box 1 near the fan 2, and multiple straight groove-shaped air outlets 102 are equidistantly provided on the side wall away from the fan 2 along a vertical plane. Two vertical guide rods 5 are installed inside the wind box 1 near the air outlets 102. A connecting sleeve 401 is provided on the end face of the air volume regulating plate 4, and the air volume regulating plate 4 is slidably installed through the connecting sleeve 401. On the guide rod 5, the air volume regulating plate 4 has ventilation openings 402 that are equidistantly arranged and staggered from the air outlet 102 along the vertical surface. Multiple ventilation holes 405 are equidistantly arranged in the horizontal direction between adjacent ventilation openings 402 on the air volume regulating plate 4. The side rib of the air volume regulating plate 4 is provided with protrusions 403. The rotating shaft 12 is installed inside the air box 1 through a bearing seat. Its axis is parallel to the axis of the output shaft of the motor 3. One end of the rotating shaft 12 is equipped with a lever 13 for moving the protrusion 403 upward. The other end is connected to the output shaft of the motor 3 through a belt drive mechanism 9. The top of the air volume regulating plate 4 is provided with an iron plate 404. The electromagnetic block 14 is installed on the side wall of the air box 1, located directly above the iron plate 404. The controller 7 and the temperature and humidity sensor 8 are installed on the outer wall of the air box 1. The temperature and humidity sensor 8, the motor 3 and the controller 7 are electrically connected.

[0022] Temperature and humidity sensor 8 collects real-time air temperature and humidity data in the pigsty and transmits the signals to controller 7. Controller 7 determines the current environmental state based on preset temperature and humidity thresholds and generates corresponding control commands. When controller 7 determines that ventilation needs adjustment, it sends a power-on command to electromagnetic block 14 and simultaneously starts motor 3. The output shaft of motor 3 drives fan 2 to rotate, generating airflow. Simultaneously, the power is transmitted to rotating shaft 12 via belt drive mechanism 9. Rotating shaft 12 rotates with motor 3, driving lever 13 at one end to rotate around its axis. During rotation, lever 13 contacts protrusion 403 on the side rib of airflow regulating plate 4. When lever 13 swings upward, it pushes protrusion 403 along guide rod 5, causing airflow regulating plate 4 to move upward. As airflow regulating plate 4 rises... The ventilation openings 402 on its surface are misaligned with the air outlet 102 of the air box. When the top of the air volume regulating plate 4 comes into contact with the electromagnetic block 14, the electromagnetic block 14 generates a magnetic force to attract the iron plate 404 on the top of the air volume regulating plate 4, fixing the air volume regulating plate 4 at the current height. This increases the overlap area between the ventilation openings 402 and the air outlet 102, thereby increasing the ventilation volume. After the pig house reaches the set temperature and humidity stability threshold, the motor 3 stops running. Then, the controller 7 controls the electromagnetic block 14 to be de-energized. At this time, the air volume regulating plate 4 naturally moves down under the action of gravity, and the ventilation openings 402 on its surface are misaligned with the air outlet 102 of the air box, causing the air outlet 102 to close. At this time, ventilation is maintained through the ventilation holes 405 on the air volume regulating plate 4, ensuring basic ventilation needs.

[0023] The air outlet 102 side of the air box 1 is equipped with a flow guide hood 10, and multiple downward-sloping flow guide plates 11 are installed at equal intervals along the vertical direction inside the flow guide hood 10. When the high-speed airflow is discharged from the air outlet 102, the flow guide plates 11 convert the horizontal airflow into downward diffusion through the inclined surface, avoiding the airflow from blowing directly onto the pigsty floor or the animal's body surface, eliminating the discomfort of the animals caused by local strong winds. At the same time, the equidistant arrangement of the flow guide plates makes the airflow evenly divided into multiple laminar flows, covering a larger horizontal area and improving the uniformity of air renewal in the pigsty.

[0024] The top and bottom of the air box 1 are equipped with finned heating tubes 15 that are electrically connected to the controller 7. When the temperature and humidity sensor 8 detects that the temperature inside the pig house is lower than the set threshold, such as during winter or nighttime low temperature periods, the controller 7 automatically starts the finned heating tubes 15 to quickly heat the air flowing through the air box 1, so that the ventilation device outputs warm air while exchanging air, effectively maintaining a suitable living environment for the pigs.

[0025] The air inlet of the air box 1 is equipped with a protective net 16; the protective net 16 can intercept large particles of debris such as leaves, mosquitoes, and feathers, reducing the amount of external pollutants entering the pigsty with the airflow.

[0026] The bellows 1 has an L-shaped connecting plate 17 installed on its side wall. The vertical surface of the connecting plate 17 is fixed to the side wall of the bellows 1 by bolts, and the horizontal surface has a pre-set threaded hole. The connecting plate 17 can be fixed to the wall of the pigsty by bolts.

[0027] Work process:

[0028] Temperature and humidity sensor 8 collects real-time air temperature and humidity data in the pigsty and transmits the signal to controller 7. Controller 7 determines the current environmental state based on preset temperature and humidity thresholds and generates corresponding control commands. When controller 7 determines that ventilation needs to be adjusted, it sends an energizing command to electromagnetic block 14, simultaneously starting motor 3. The output shaft of motor 3 drives fan 2 to rotate, generating airflow. At the same time, the power is transmitted to rotating shaft 12 through belt drive mechanism 9. Rotating shaft 12 rotates with motor 3, driving lever 13 at one end to rotate around its axis. During rotation, lever 13 contacts the protrusion 403 on the side rib of airflow regulating plate 4. When lever 13 swings upward, it pushes protrusion 403 along guide rod 5 to move airflow regulating plate 4 upward. When airflow regulating plate 4 rises, the vent 402 on its surface and the air outlet 102 of the air box are misaligned. When the top of airflow regulating plate 4 contacts electromagnetic block 14, electromagnetic block 14 generates magnetic force to attract the iron piece 404 at the top of airflow regulating plate 4, fixing airflow regulating plate 4 at the current height, thereby increasing the overlap area between vent 402 and air outlet 102. This increases ventilation. Once the pigsty reaches the set temperature and humidity stability threshold, motor 3 stops running. Then, controller 7 controls the solenoid block 14 to de-energize. At this time, the air volume regulating plate 4 naturally moves downward under gravity, and the ventilation opening 402 on its surface and the air box outlet 102 are misaligned, causing the outlet 102 to close. At this time, ventilation is maintained through the ventilation holes 405 on the air volume regulating plate 4, ensuring basic air exchange requirements. This utility model adopts a design with misaligned air outlets and ventilation openings, and uses temperature and humidity sensors, controllers, and motors... The linkage of the shaft, lever, and electromagnetic block enables real-time monitoring of the temperature and humidity in the pigsty and automatic adjustment of the air volume regulating plate position. This causes the ventilation openings on the surface of the air volume regulating plate to shift from the air box outlet to the ventilation volume, thereby increasing or decreasing the ventilation volume. This solves the problem that traditional fixed air ducts cannot dynamically respond to changes in temperature and humidity. It can automatically perform ventilation operations according to seasonal changes and diurnal temperature differences, avoiding the problem of frequent manual adjustments and significantly reducing labor intensity. It can prevent ammonia accumulation caused by insufficient ventilation and avoid excessive cold air intake that could cause cold and heat stress in animals.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An adjustable ventilation device for pigsties, characterized in that: The adjustable pigsty ventilation device includes a wind box (1), a fan (2), a motor (3), an air volume regulating plate (4), a guide rod (5), a support frame (6), a controller (7), a temperature and humidity sensor (8), a belt drive mechanism (9), a rotating shaft (12), a lever (13), and an electromagnetic block (14). The wind box (1) is equipped with a support frame (6), and a motor (3) is installed on the support frame (6). A fan (2) is installed on the output shaft of the motor (3). An air inlet (101) is provided on the side of the wind box (1) near the fan (2), and multiple straight groove-shaped air outlets (102) are provided at equal intervals along the vertical plane on the side wall away from the fan (2). Two vertical guide rods (5) are installed on the side of the wind box (1) near the air outlets (102). A connecting sleeve (401) is provided on the end face of the air volume regulating plate (4). The air volume regulating plate (4) is slidably installed on the guide rods (5) through the connecting sleeve (401). The air volume regulating plate (4) has ventilation openings (402) arranged at equal intervals along the vertical surface, which are offset from the air outlet (102). Multiple ventilation holes (405) are equally spaced laterally between adjacent ventilation openings (402) of the air volume regulating plate (4). A protrusion (403) is provided on the side rib of the air volume regulating plate (4). The rotating shaft (12) is installed inside the air box (1) through a bearing seat, and its axis is parallel to the axis of the motor (3) output shaft. One end of the rotating shaft (12) is equipped with a device for... The lever (13) that moves the protrusion (403) upward is connected to the output shaft of the motor (3) via the belt drive mechanism (9) at the other end. The top of the air volume regulating plate (4) is provided with an iron plate (404). The electromagnetic block (14) is installed on the side wall of the air box (1) and is located directly above the iron plate (404). The controller (7) and the temperature and humidity sensor (8) are installed on the outer wall of the air box (1). The temperature and humidity sensor (8), the motor (3) and the controller (7) are electrically connected.

2. The adjustable pigsty ventilation device as described in claim 1, characterized in that: The air outlet (102) side of the air box (1) is equipped with a flow guide (10), and multiple downward inclined flow guide plates (11) are installed at equal intervals along the vertical direction inside the flow guide (10).

3. An adjustable pigsty ventilation device as described in claim 1 or 2, characterized in that: The top and bottom of the air box (1) are equipped with finned heating tubes (15) that are electrically connected to the controller (7).

4. An adjustable pigsty ventilation device as described in claim 3, characterized in that: The air inlet of the air box (1) is equipped with a protective net (16).

5. An adjustable pigsty ventilation device as described in claim 1 or 4, characterized in that: The bellows (1) is equipped with a connecting plate (17) with an L-shaped cross-section. The vertical surface of the connecting plate (17) is fixed to the side wall of the bellows (1) by bolts, and the horizontal surface has a pre-set threaded hole.

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