A ventilation device with adjustable air volume

Abstract

The utility model relates to a ventilation equipment technical field, concretely is a kind of ventilation device, the air volume of air outlet is adjustable, including pipeline, fan and adjusting device, fan is fixedly installed in one end of pipeline, adjusting device is set on the surface of pipeline, adjusting device includes slide plate, slide plate is slidably connected with pipeline, the upper surface of slide plate is fixedly connected with card frame, the upper surface of pipeline is rotatably connected with rocker, the side of pipeline close to rocker is fixedly connected with motor, the driving end of motor is fixedly connected with rocker, the upper surface of slide plate is fixedly connected with drawstring, the upper surface of pipeline is fixedly connected with fender, drawstring is in contact with fender, the utility model, motor drives rocker and the linkage of drawstring, spring, realize the automation of pipeline air outlet, accurately regulate air volume, satisfy different working condition demand, need not manual operation, simplify air volume regulation process, improve use convenience, improve ventilation system operating efficiency, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and in particular to a ventilation device with adjustable air volume. Background Technology

[0002] Ventilation devices are equipment used to enhance air circulation and improve air quality. They can achieve functions such as air exchange, cooling, dehumidification, and dust removal. They are widely used in residential buildings, commercial buildings, industrial plants, and other places. There are many types of ventilation devices, which can be divided into natural ventilation and mechanical ventilation. Natural ventilation devices, such as ventilation windows and vents, rely on natural wind or thermal pressure to achieve air flow. They are energy-saving and low-cost, but are greatly restricted by external conditions. Mechanical ventilation devices use motors to drive fan blades to rotate and generate airflow, such as axial flow fans, centrifugal fans, and fresh air systems. Axial flow fans are suitable for large air volume and low pressure scenarios, centrifugal fans are suitable for high pressure and small air volume requirements, and fresh air systems can achieve indoor and outdoor air circulation and filtration.

[0003] However, the air volume of ventilation devices is inconvenient to adjust, making it difficult to meet diverse ventilation needs, affecting indoor comfort or production process stability. The adjustment process is time-consuming and labor-intensive, reducing efficiency. Long-term inefficient adjustment can accelerate component wear and shorten equipment life. It may also cause safety hazards due to uncontrolled air volume, such as insufficient laboratory ventilation leading to the accumulation of harmful gases, or substandard fire ventilation affecting evacuation. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing ventilation devices where the air volume is inconvenient to adjust, making it difficult to meet diverse ventilation needs, affecting indoor comfort or production process stability, and the adjustment process is time-consuming and labor-intensive, reducing efficiency. Long-term inefficient adjustment can accelerate component wear, shorten equipment life, and may also cause safety hazards due to uncontrolled air volume, such as insufficient laboratory ventilation leading to the accumulation of harmful gases or substandard fire ventilation affecting evacuation. Therefore, this utility model proposes a ventilation device with adjustable air volume.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a ventilation device with adjustable airflow, comprising a duct, a fan, and an adjustment device. The fan is fixedly installed at one end of the duct, and the adjustment device is disposed on the surface of the duct. The adjustment device includes a sliding plate, which is slidably connected to the duct. A bracket is fixedly connected to the upper surface of the sliding plate, and a rocker arm is rotatably connected to the upper surface of the duct. A motor is fixedly connected to the side of the duct near the rocker arm, and the drive end of the motor is fixedly connected to the rocker arm. A pull strap is fixedly connected to the upper surface of the sliding plate, and a baffle is fixedly connected to the upper surface of the duct. The pull strap contacts the baffle. By setting the adjustment device, the motor drives the rocker arm, pull strap, and spring to achieve automatic opening and closing of the duct outlet, precisely adjust the airflow, meet the needs of different working conditions, eliminate the need for manual operation, simplify the airflow adjustment process, improve ease of use, enhance the operating efficiency of the ventilation system, and reduce energy consumption.

[0006] Preferably, the longitudinal section of the card holder is L-shaped, and a wheel is fixedly connected to the end of the rocker arm away from the motor. By setting the motor, the motor, as the core driving component, converts electrical energy into mechanical energy, driving the rocker arm to rotate clockwise or counterclockwise, thereby winding or releasing the pull belt, realizing the up and down movement of the slide plate, and ultimately changing the cross-sectional area of ​​the air outlet to achieve the purpose of adjusting the air volume.

[0007] Preferably, there are two skateboards and rockers, which are symmetrically arranged. A transmission belt is fitted on the surface of the wheel. The rocker is connected to the output shaft of the motor and serves as the transmission medium for the motor's power. When the motor drives the rocker to rotate, the rotational motion is converted into the linear motion of the skateboard by winding or releasing the belt, directly controlling the vertical movement of the skateboard and thus changing the cross-sectional area of ​​the air outlet.

[0008] Preferably, a spring is fixedly connected to one side of the card holder, and the end of the spring away from the card holder is fixedly connected to the pipe. By setting the spring, when the motor drives the rocker arm to rotate in the opposite direction, the pull strap releases the traction on the slide plate, and the spring generates tension through its own elastic deformation, actively pulling the slide plate downward to reduce the air outlet area and thus reduce the air volume. This process does not require the motor to continuously do reverse work; the adjustment can be achieved simply by releasing the potential energy of the spring, thereby reducing energy consumption.

[0009] Preferably, the inner wall of the pipe is provided with a noise reduction component, which includes a crossbar that is fixedly connected to the inner wall of the pipe. A magnet is fixedly connected to the surface of the crossbar, and a plug is fixedly connected to the surface of the magnet. By setting the noise reduction component, the filter screen intercepts debris from entering the pipe, reducing the noise generated by the collision between debris and the pipe wall. This effectively reduces the operating noise of the ventilation system, creating a quiet environment. It not only reduces noise but also prevents debris from damaging the internal components of the pipe, improving the stability and reliability of the ventilation system.

[0010] Preferably, one end of the insert rod is provided with a filter screen, which is made of iron. By inserting the insert rod into the corresponding hole of the filter screen, the filter screen is tightly fixed to the pipe inlet or designated position by the attraction force between the magnet and the filter screen, preventing the filter screen from shifting or vibrating due to airflow impact, and ensuring that it effectively blocks debris and reduces noise.

[0011] Preferably, the filter screen has through holes on its surface, the insert rod is inserted into the through holes on the surface of the filter screen, and the magnet is magnetically connected to the filter screen.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting an adjustment device, when it is necessary to adjust the air volume of the duct, the motor is started, the motor drives the rocker arm to rotate, and the rocker arm rotates while winding the pull belt. The pull belt pulls the slide plate, and the slide plate moves upward. As the slide plate moves, the air outlet is widened, thus increasing the air volume. When the motor drives the rocker arm to rotate in the opposite direction, the pull belt is unrestrained, and the spring pulls the slide plate downward. The slide plate moves downward and narrows the air outlet of the duct, reducing the air volume. By setting an adjustment device, the linkage between the motor-driven rocker arm, the pull belt, and the spring realizes the automatic opening and closing of the air outlet of the duct, accurately adjusts the air volume, meets the needs of different working conditions, eliminates the need for manual operation, simplifies the air volume adjustment process, improves the convenience of use, enhances the operating efficiency of the ventilation system, and reduces energy consumption.

[0014] 2. In this utility model, by setting a noise reduction component, the filter screen blocks debris from entering the pipe during use, reducing the noise generated by debris colliding with the pipe wall under the influence of wind. At the same time, pulling the filter screen causes the insert rod and magnet to detach from the filter screen, allowing the filter screen to be removed. When the insert rod is inserted into the filter screen, the magnet and filter screen are attracted to each other to complete the fixation. By setting a noise reduction component, the filter screen intercepts debris from entering the pipe, reducing the noise generated by debris colliding with the pipe wall, effectively reducing the operating noise of the ventilation system, creating a quiet environment. It not only reduces noise but also prevents debris from damaging the internal components of the pipe, improving the stability and reliability of the ventilation system. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a ventilation device with adjustable airflow is provided for this utility model.

[0016] Figure 2 A side view of a ventilation device with adjustable airflow is provided for this utility model.

[0017] Figure 3 A partial structural diagram of a ventilation device with adjustable airflow is provided for this utility model.

[0018] Figure 4 A schematic diagram of the adjustment device structure of a ventilation device with adjustable air volume is provided for this utility model.

[0019] Figure 5 This invention presents a schematic diagram of a noise reduction component structure for a ventilation device with adjustable airflow.

[0020] Legend: 1. Pipe; 2. Fan; 3. Adjustment device; 31. Slide plate; 32. Clip; 33. Spring; 34. Baffle; 35. Belt; 36. Rocker arm; 37. Motor; 38. Wheel; 39. Noise reduction component; 391. Filter screen; 392. Crossbar; 393. Insert rod; 394. Magnet; 310. Drive belt. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a ventilation device with adjustable air volume, including a pipe 1, a fan 2 and an adjustment device 3. The fan 2 is fixedly installed at one end of the pipe 1, and the adjustment device 3 is set on the surface of the pipe 1.

[0022] In this implementation scheme: the adjustment device 3 includes a sliding plate 31, which is slidably connected to the pipe 1. A bracket 32 ​​is fixedly connected to the upper surface of the sliding plate 31. A rocker arm 36 is rotatably connected to the upper surface of the pipe 1. A motor 37 is fixedly connected to the side of the pipe 1 near the rocker arm 36. The drive end of the motor 37 is fixedly connected to the rocker arm 36. A pull strap 35 is fixedly connected to the upper surface of the sliding plate 31. A baffle 34 is fixedly connected to the upper surface of the pipe 1. The pull strap 35 contacts the baffle 34. By setting the adjustment device 3, the motor 37 drives the rocker arm 36 and the pull strap 35 and the spring 33 to achieve automatic opening and closing of the air outlet of the pipe 1, accurately adjust the air volume, meet the needs of different working conditions, eliminate the need for manual operation, simplify the air volume adjustment process, improve the ease of use, improve the operating efficiency of the ventilation system, and reduce energy consumption.

[0023] Specifically, the longitudinal section of the card holder 32 is set in an "L" shape. The end of the rocker arm 36 away from the motor 37 is fixedly connected to a wheel 38. By setting the motor 37, the motor 37, as the core driving component, converts electrical energy into mechanical energy, driving the rocker arm 36 to rotate clockwise or counterclockwise, thereby winding or releasing the pull strap 35, realizing the up and down movement of the slide plate 31, and ultimately changing the cross-sectional area of ​​the air outlet to achieve the purpose of adjusting the air volume.

[0024] Specifically, there are two skateboards 31 and two rocker arms 36, which are arranged symmetrically. A transmission belt 310 is fitted on the surface of the wheel 38. The rocker arm 36 is connected to the output shaft of the motor 37 and serves as the transmission medium for the power of the motor 37. When the motor 37 drives the rocker arm 36 to rotate, the rotational motion is converted into the linear motion of the skateboard 31 by winding or releasing the belt 35, which directly controls the up and down movement of the skateboard 31 and thus changes the cross-sectional area of ​​the air outlet.

[0025] Specifically, a spring 33 is fixedly connected to one side of the card holder 32. The end of the spring 33 away from the card holder 32 is fixedly connected to the pipe 1. By setting the spring 33, when the motor 37 drives the rocker arm 36 to rotate in the opposite direction, the pull strap 35 releases the traction on the slide plate 31. The spring 33 generates tension through its own elastic deformation, actively pulling the slide plate 31 downward to reduce the air outlet area and thus reduce the air volume. This process does not require the motor 37 to continuously do reverse work. The adjustment can be achieved simply by releasing the potential energy of the spring 33, thus reducing energy consumption.

[0026] Specifically, the inner wall of the pipe 1 is provided with a noise reduction component 39, which includes a crossbar 392. The crossbar 392 is fixedly connected to the inner wall of the pipe 1, and a magnet 394 is fixedly connected to the surface of the crossbar 392. A plug rod 393 is fixedly connected to the surface of the magnet 394.

[0027] In this embodiment: by setting the noise reduction component 39, the filter screen 391 intercepts debris from entering the pipe 1, reducing the noise generated by the collision between debris and the pipe wall, effectively reducing the operating noise of the ventilation system, creating a quiet environment, not only reducing noise, but also preventing debris from damaging the internal components of the pipe 1, and improving the stability and reliability of the ventilation system.

[0028] Specifically, a filter screen 391 is provided at one end of the insertion rod 393, and the filter screen 391 is made of iron.

[0029] In this embodiment: by setting the insertion rod 393, after the insertion rod 393 is inserted into the corresponding insertion hole of the filter screen 391, the filter screen 391 is tightly fixed to the inlet of the pipe 1 or the designated position by the attraction force between the magnet 394 and the filter screen 391, so as to prevent the filter screen 391 from shifting or vibrating due to the impact of airflow, and ensure that it effectively blocks debris and reduces noise.

[0030] Specifically, the filter screen 391 has through holes on its surface, the insertion rod 393 is inserted into the through holes on the surface of the filter screen 391, and the magnet 394 is magnetically connected to the filter screen 391.

[0031] Working principle: By setting the adjustment device 3, when it is necessary to adjust the air volume of duct 1, the motor 37 is started. The motor 37 drives the rocker arm 36 to rotate. While the rocker arm 36 rotates, it winds up the pull belt 35. The pull belt 35 pulls the slide plate 31, which moves upward. As the slide plate 31 moves, the air outlet is widened, thus increasing the air volume. When the motor 37 drives the rocker arm 36 to rotate in the opposite direction, the pull belt 35 is unrestrained, and the spring 33 pulls the slide plate 31 downward. The slide plate 31 moves downward and narrows the air outlet of duct 1, reducing the air volume. By setting the adjustment device 3, the linkage between the motor 37 driving the rocker arm 36, the pull belt 35, and the spring 33 realizes the automatic opening and closing of the air outlet of duct 1, accurately adjusts the air volume, meets the needs of different working conditions, eliminates the need for manual operation, simplifies the air volume adjustment process, improves the convenience of use, enhances the operating efficiency of the ventilation system, and reduces energy consumption.

[0032] By setting up the noise reduction component 39, during use, the filter screen 391 blocks debris from entering the pipe 1, reducing the noise generated by debris colliding with the pipe wall under the influence of wind. At the same time, pulling the filter screen 391 disengages the insert rod 393 and the magnet 394 from the filter screen 391, allowing the filter screen 391 to be removed. When the insert rod 393 is inserted into the filter screen 391, the magnet 394 attracts the filter screen 391 to complete the fixation. By setting up the noise reduction component 39, the filter screen 391 intercepts debris from entering the pipe 1, reducing the noise generated by debris colliding with the pipe wall, effectively reducing the operating noise of the ventilation system, creating a quiet environment. It not only reduces noise but also prevents debris from damaging the internal components of the pipe 1, improving the stability and reliability of the ventilation system.

Claims

1. A ventilation device with adjustable airflow, comprising a duct (1), a fan (2), and an adjusting device (3), characterized in that: The fan (2) is fixedly installed at one end of the pipe (1), and the adjusting device (3) is set on the surface of the pipe (1); The adjusting device (3) includes a sliding plate (31), which is slidably connected to the pipe (1). A bracket (32) is fixedly connected to the upper surface of the sliding plate (31). A rocker arm (36) is rotatably connected to the upper surface of the pipe (1). A motor (37) is fixedly connected to the side of the pipe (1) near the rocker arm (36). The driving end of the motor (37) is fixedly connected to the rocker arm (36). A pull strap (35) is fixedly connected to the upper surface of the sliding plate (31). A stop (34) is fixedly connected to the upper surface of the pipe (1). The pull strap (35) contacts the stop (34).

2. The air volume adjustable ventilation device according to claim 1, characterized in that: The longitudinal section of the card holder (32) is arranged in an "L" shape, and a wheel (38) is fixedly connected to the end of the rocker arm (36) away from the motor (37).

3. The air volume adjustable ventilation device according to claim 2, characterized in that: There are two slides (31) and rockers (36), and the two slides (31) and rockers (36) are arranged symmetrically. The surface of the wheel (38) is fitted with a transmission belt (310).

4. A ventilation device with adjustable airflow according to claim 3, characterized in that: A spring (33) is fixedly connected to one side of the card holder (32), and the end of the spring (33) away from the card holder (32) is fixedly connected to the pipe (1).

5. A ventilation device with adjustable airflow according to claim 1, characterized in that: The inner wall of the pipe (1) is provided with a noise reduction component (39). The noise reduction component (39) includes a crossbar (392). The crossbar (392) is fixedly connected to the inner wall of the pipe (1). A magnet (394) is fixedly connected to the surface of the crossbar (392). A plug (393) is fixedly connected to the surface of the magnet (394).

6. A ventilation device with adjustable airflow volume according to claim 5, characterized in that: A filter screen (391) is provided at one end of the insertion rod (393), and the filter screen (391) is made of iron.

7. A ventilation device with adjustable airflow according to claim 6, characterized in that: The filter screen (391) has through holes on its surface, the insert rod (393) is inserted into the through holes on the surface of the filter screen (391), and the magnet (394) is magnetically connected to the filter screen (391).

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