Noise reduction type centrifugal ventilation equipment

Abstract

The utility model discloses noise reduction type centrifugal ventilation equipment which comprises a supporting table, a motor, a centrifugal fan, an air outlet, an air inlet and a filtering assembly, the filtering assembly is arranged, and inlet air is subjected to multiple interception and cleaning treatment through an activated carbon filter element layer and a filtering plate; and through lifting and reciprocating adjustment of the cleaning mechanism, dust intercepted by the filter plate can be conveniently cleaned and discharged, the centrifugal ventilation equipment is prevented from being affected by too much dust accumulation, and therefore the use efficiency of the centrifugal ventilation equipment is improved in an auxiliary mode.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, specifically to a noise-reducing centrifugal ventilation device. Background Technology

[0002] Centrifugal ventilation equipment is a type of driven fluid machinery that uses a high-speed rotating impeller to accelerate gas, then decelerate and change its flow direction, converting kinetic energy into potential energy. However, current centrifugal fans have certain shortcomings because the devices are too bulky, resulting in high operating costs, time and labor when moving them. When in use, the devices shake and generate noise, affecting people living nearby, and may be damaged by collisions during shaking.

[0003] For example, CN202123290579.0034 discloses "A Centrifugal Fan for Indoor Ventilation in Large Buildings," which, through the coordinated use of a receiver, threaded rod, threaded ring, threaded block, and wheel plate, facilitates the adjustment of the relative position of the moving wheel and wheel groove, making it easy to move and install the device and improve work efficiency. The combination of a rubber pad and noise reduction mechanism allows the fan body to oscillate during operation. The fan body presses downward against the rubber pad, and the fan body oscillates left and right against the noise reduction spring, which in turn presses against the side wall of the noise reduction seat. Under the action of the noise reduction spring and the rubber pad, the force generated by the oscillation is buffered, reducing the noise and preventing excessive noise from affecting workers and people living nearby.

[0004] However, when the aforementioned centrifugal ventilation equipment is in use, it generates centrifugal force through the rotation of the impeller to draw air in from the air inlet, accelerate it through the impeller, and then discharge it from the air outlet. During this process, dust and impurities in the air are carried by the impeller, but the incoming air is not filtered or intercepted. When too many impurities accumulate over a long period of time, it will indirectly affect the air volume and air pressure of the fan, and may even cause the blades to become unbalanced, resulting in vibration and noise, which will indirectly affect the normal operation of the fan. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a noise-reducing centrifugal ventilation device that solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing centrifugal ventilation device, comprising a support platform, a motor, a centrifugal fan, an air outlet, an air inlet, and a filter assembly. The support platform is located at the bottom of the motor. The output end of the motor is connected to the middle right end of the centrifugal fan via a drive shaft. An air outlet is located on the lower front side of the centrifugal fan, and an air inlet is located on the middle left end of the centrifugal fan. The filter assembly is fixedly connected to the left end of the air inlet. The filter assembly includes an air inlet hood, a retaining plate, an activated carbon filter layer, a filter plate, and a cleaning mechanism. The retaining plate is installed on the inner middle side of the air inlet hood, and the activated carbon filter layer is installed on the inner middle side of the retaining plate. The filter plate and the cleaning mechanism are respectively located on the inner left end of the air inlet hood. The air inlet hood is fixedly connected to the left end of the air inlet.

[0009] Preferably, the cleaning mechanism includes a micro motor, a lead screw, a pulley assembly, a second lead screw, a lifting slider, and a cleaning brush. The output end of the micro motor is connected to the lower end of the first lead screw via a coupling. The inner side of the middle of the lifting slider is threaded with the second lead screw. The rear end of the lifting slider is fixed to the front end of the cleaning brush. The micro motor, the first lead screw, the pulley assembly, and the second lead screw are respectively located on the inner side of the left end of the air inlet shroud.

[0010] Preferably, the left end of the air inlet extends to the inner side of the right end of the air inlet hood, and the left end of the air inlet is arranged in parallel with the activated carbon filter layer and the filter plate, which facilitates secondary filtration and interception of the incoming air to reduce impurities carried by the air and isolate them.

[0011] Preferably, a rectangular notch is provided on the inner side of the middle part of the air inlet hood, and the fastening plate is fitted with the rectangular notch of the air inlet hood to facilitate the replacement of the activated carbon filter layer.

[0012] Preferably, lead screw one and lead screw two are respectively located inside the front and rear sides of the left end of the air inlet hood, and the upper sides of lead screw one and lead screw two are respectively fixedly connected to the middle of the left and right end pulleys of the pulley group, so that lead screw one and lead screw two maintain the effect of rotating at the same frequency.

[0013] Preferably, the lifting slider is provided in two sets, and the inner side of the middle part of the two sets of lifting sliders are respectively threaded and adjusted with lead screw one and lead screw two, so as to facilitate the effect of synchronous lifting and lowering adjustment of the two sets of lifting sliders.

[0014] Preferably, the cleaning brush is attached to the left end of the filter plate, and the cleaning brush is adjusted up and down at the connection point between the cleaning brush and the left end of the filter plate via a lifting slider, so as to facilitate the cleaning of the filter plate in all aspects.

[0015] This invention provides a noise-reducing centrifugal ventilation device. It offers the following advantages: by incorporating a filtration assembly, the incoming air undergoes multiple interception and cleaning processes through an activated carbon filter layer and filter plates. The lifting and reciprocating adjustment of the cleaning mechanism facilitates the cleaning and discharge of dust intercepted by the filter plates, preventing excessive dust accumulation from affecting the centrifugal ventilation device and thus improving its operational efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal planar structural diagram of the present invention;

[0018] Figure 3 This is a front view schematic diagram of the filter assembly of this utility model;

[0019] Figure 4 This is a partially enlarged structural diagram of the filter assembly of this utility model from a frontal view.

[0020] Figure 5 This is a schematic diagram of the left-side plan view of the cleaning mechanism of this utility model.

[0021] In the diagram: Support platform-1, Motor-2, Centrifugal fan-3, Air outlet-4, Air inlet-5, Filter assembly-6, Air inlet hood-61, Fastening plate-62, Activated carbon filter layer-63, Filter plate-64, Cleaning mechanism-65, Micro motor-651, Lead screw one-652, Pulley assembly-653, Lead screw two-654, Lifting slider-655, Cleaning brush-656. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and 2This utility model provides a technical solution for a noise-reducing centrifugal ventilation device: a noise-reducing centrifugal ventilation device includes a support platform 1, a motor 2, a centrifugal fan 3, an air outlet 4, an air inlet 5, and a filter assembly 6. The support platform 1 is located at the bottom of the motor 2. The output end of the motor 2 is connected to the middle right end of the centrifugal fan 3 via a drive shaft. An air outlet 4 is located on the lower front end of the centrifugal fan 3, and an air inlet 5 is located in the middle left end of the centrifugal fan 3. The filter assembly 6 is fixedly connected to the left end of the air inlet 5.

[0024] Please see Figure 3 and 4 This utility model provides a technical solution for a noise-reducing centrifugal ventilation device: A noise-reducing centrifugal ventilation device, the filter assembly 6 includes an air inlet hood 61, a retaining plate 62, an activated carbon filter layer 63, a filter plate 64, and a cleaning mechanism 65. The retaining plate 62 is installed on the inner side of the middle part of the air inlet hood 61, the activated carbon filter layer 63 is installed on the inner side of the middle part of the retaining plate 62, the filter plate 64 and the cleaning mechanism 65 are respectively arranged on the inner side of the left end of the air inlet hood 61, and the air inlet hood 61 and the air inlet 5 are connected. The left end is fixedly connected, and the left end of the air inlet 5 extends to the inner side of the right end of the air inlet hood 61. The left end of the air inlet 5 is arranged in parallel with the activated carbon filter layer 63 and the filter plate 64, which facilitates secondary filtration and interception of the incoming air to reduce impurities carried by the air and isolate them. A rectangular notch is opened on the inner side of the middle part of the air inlet hood 61. The locking plate 62 is matched with the rectangular notch of the air inlet hood 61 to facilitate the replacement of the activated carbon filter layer 63.

[0025] Please see Figure 5This utility model provides a technical solution for a noise-reducing centrifugal ventilation device: A noise-reducing centrifugal ventilation device, the cleaning mechanism 65 includes a micro motor 651, a lead screw 652, a pulley set 653, a lead screw 654, a lifting slider 655, and a cleaning brush 656. The output end of the micro motor 651 is connected to the lower end of the lead screw 652 via a coupling. The inner side of the middle part of the lifting slider 655 is threadedly engaged with the lead screw 654. The rear end of the lifting slider 655 is fixed to the front end of the cleaning brush 656. The micro motor 651, the lead screw 652, the pulley set 653, and the lead screw 654 are respectively arranged on the inner side of the left end of the air inlet hood 61. The lead screw 652 and the lead screw 654 are respectively arranged on the air inlet hood. The inner sides of the left end of 61 are fixedly connected to the middle of the left and right end pulleys of the pulley group 653, respectively, so that the lead screw 652 and the lead screw 654 can rotate at the same frequency. Two sets of lifting sliders 655 are provided. The inner sides of the middle of the two sets of lifting sliders 655 are respectively threaded and adjusted with the lead screw 652 and the lead screw 654, so as to achieve the effect of lifting and lowering the two sets of lifting sliders 655 at the same frequency. The cleaning brush 656 is attached to the left end of the filter plate 64, and the cleaning brush 656 is adjusted up and down through the connection between the lifting slider 655 and the left end of the filter plate 64, so as to achieve the effect of cleaning the filter plate 64 in all aspects through the cleaning brush 656.

[0026] In use, by connecting the air inlet pipe to the left end of the air inlet hood 61, and letting the air pass through the filter plate 64 and the activated carbon filter layer 63, the activated carbon filter layer 63 and the filter plate 64 perform double dust interception treatment on the incoming air to prevent excessive dust accumulation from affecting the centrifugal ventilation equipment.

[0027] Then, the filtered air enters the centrifugal fan 3 through the air inlet 5, and the centrifugal fan 3 is driven by the motor 2. After the impeller rotates, centrifugal force is generated to draw the air in from the air inlet. After being accelerated by the impeller, the air is discharged from the air outlet 4 for use.

[0028] Subsequently, the micro motor 651 drives the lead screw 652 to rotate, and the lead screw 652 causes the lead screw 654 to rotate synchronously through the pulley group 653. The lead screw 652 and the lead screw 654 respectively engage with the lifting slider 655 through lifting thread engagement, so that the two sets of lifting sliders 655 and the cleaning brush 656 clean and discharge the dust intercepted by the filter plate 64, and help improve the efficiency of the centrifugal ventilation equipment.

[0029] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal ventilation equipment of noise reduction type, comprising a support table (1), a motor (2), a centrifugal fan (3), an air outlet (4) and an air inlet (5), the support table (1) is arranged at the bottom of the motor (2), the output end of the motor (2) is connected with the middle part of the right end of the centrifugal fan (3) through a driving shaft, the lower side of the front end of the centrifugal fan (3) is provided with the air outlet (4), and the middle part of the left end of the centrifugal fan (3) is provided with the air inlet (5). characterized in that Further comprising a filtering assembly (6), the filtering assembly (6) is fixedly connected with the left end of the air inlet (5), the filtering assembly (6) comprises an air inlet cover (61), a clamping plate (62), an activated carbon filter core layer (63), a filtering plate (64) and a cleaning mechanism (65), the clamping plate (62) is installed on the inner side of the middle part of the air inlet cover (61), the activated carbon filter core layer (63) is installed on the inner side of the middle part of the clamping plate (62), and the filtering plate (64) and the cleaning mechanism (65) are arranged on the inner side of the left end of the air inlet cover (61) respectively.

2. A noise reducing centrifugal ventilation device according to claim 1, characterized in that: The cleaning mechanism (65) comprises a micro motor (651), a lead screw one (652), a belt pulley set (653), a lead screw two (654), a lifting slide block (655) and a cleaning brush (656), the output end of the micro motor (651) is connected with the lower end of the lead screw one (652) through a shaft coupling, the inner side of the middle part of the lifting slide block (655) is threadedly matched with the lead screw two (654), the rear end of the lifting slide block (655) is fixedly connected with the front end of the cleaning brush (656), and the micro motor (651), the lead screw one (652), the belt pulley set (653) and the lead screw two (654) are arranged on the inner side of the left end of the air inlet cover (61) respectively.

3. A noise reducing centrifugal ventilation device according to claim 1, characterized in that: The left end of the air inlet (5) extends to the inner side of the right end of the air inlet cover (61), and the left end of the air inlet (5) is arranged in parallel with the activated carbon filter core layer (63) and the filtering plate (64).

4. A noise reducing centrifugal ventilation device according to claim 1, characterized in that: The inner side of the middle part of the air inlet cover (61) is provided with a rectangular notch, and the clamping plate (62) is arranged in the rectangular notch of the air inlet cover (61).

5. A noise reducing centrifugal ventilation device according to claim 2, characterized in that: The lead screw one (652) and the lead screw two (654) are arranged in the inner sides of the front and rear sides of the left end of the air inlet cover (61) respectively, and the upper sides of the lead screw one (652) and the lead screw two (654) are fixedly connected with the middle parts of the left and right end belt pulleys of the belt pulley set (653) respectively.

6. A noise reducing centrifugal ventilation device according to claim 2, characterized in that: The lifting slide block (655) is provided with two groups, and the inner sides of the middle parts of the two groups of lifting slide blocks (655) are threadedly matched with the lead screw one (652) and the lead screw two (654) respectively.

7. A noise reducing centrifugal ventilation device according to claim 2, characterized in that: The cleaning brush (656) is connected with the left end of the filtering plate (64) in a fit mode, and the cleaning brush (656) is adjusted up and down through the left end connecting part of the filtering plate (64).

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