CN219262732U - Fan with noise reduction function - Google Patents

Abstract

The utility model relates to a fan with a noise reduction function, which comprises a mounting plate, wherein two fixing plates are fixedly arranged at the top of the mounting plate, a buffer spring seat is fixedly arranged at the top of the mounting plate, a fixing ring is fixedly arranged at the top of the buffer spring seat, a motor is movably arranged in the fixing ring, two fixing frames are fixedly arranged at the top of the mounting plate, a shell is movably arranged in the fixing frames, an air outlet pipe is fixedly arranged at the top of the shell, a protective cover is fixedly arranged at the left side of the shell, and a first mounting plate is fixedly arranged at the left side of the protective cover. This fan with function of making an uproar falls, makes the fan possess better noise reduction effect through setting up fixed establishment and buffering spring holder and amortization net, simultaneously to having still possessed convenient dismantlement function to be convenient for carry out swift maintenance and change face to noise abatement equipment, current fan mostly all adopts the silencer to fall the noise, and its effect of making an uproar that falls of itself is limited.

Description

A fan with noise reduction function

technical field

The utility model relates to the technical field of fans, in particular to a fan with a noise reduction function.

Background technique

The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. The fan is the abbreviation of China's habit of gas compression and gas delivery machinery. Usually, the so-called fan includes ventilator, blower , Wind generators, fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling, ventilation and drafting of boilers and industrial furnaces, air conditioning equipment and household appliances Cooling and ventilation in the air, drying and sorting of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc.

The centrifugal fan uses the high-speed rotating impeller (centrifugal force) to do work on the gas medium. By changing the flow direction and flow speed of the gas medium, the gas medium is converted from kinetic energy to potential energy (pressure energy). The centrifugal fan has a wide range of applications. Such as construction, boiler, chemical industry, petroleum and environmental protection industries, etc., the application prospects are considerable, but when the existing centrifugal fans are used, most of them rely on the muffler to eliminate the noise, which has a limited noise reduction effect , the vibration of the driving structure and the noise reduction of wind noise are limited, and the use effect is relatively poor, so a fan with noise reduction function is proposed to solve the above problems.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a fan with convenient installation and disassembly and good noise reduction effect.

In order to achieve the above purpose, the utility model provides the following technical solutions: a fan with noise reduction function, including a mounting plate, two fixed plates are fixedly installed on the top of the mounting plate, and a buffer is fixedly installed on the top of the mounting plate Spring seat, the top of the buffer spring seat is fixedly installed with a fixed ring, the inside of the fixed ring is movably installed with a motor, the top of the mounting plate is fixedly installed with two fixed frames, and the inside of the fixed frame is movably installed with The casing, the top of the casing is fixedly equipped with an air outlet pipe, the left side of the casing is fixedly installed with a protective cover, the left side of the protective cover is fixedly installed with a first mounting plate, and the first mounting plate The left side of the second mounting plate is movably installed with a second mounting plate, and the left side of the second mounting plate is fixedly equipped with a sound-absorbing cover, and the inside of the sound-absorbing cover is fixedly installed with two sliders, and the opposite surfaces of the two sliders are movable. A sound-absorbing net is installed, and a fixing mechanism is arranged inside the first installation plate;

The fixing mechanism includes a return spring seat, a return spring seat is movably installed inside the first mounting plate, a rotating ball is movably installed on the left side of the return spring seat, and the top and bottom of the rotating ball are fixedly installed with limited A position plate, a rotating rod is fixedly installed on the left side of the rotating ball, and a rotating knob is fixedly installed on the left end of the rotating rod.

Further, the inside of the first installation disk is provided with a limit groove matching the rotating ball and the two limit plates, and the inside of the second installation disk is provided with a rotation groove suitable for the rotating rod.

Further, the opposite surfaces of the two fixing plates are provided with sliding grooves, and the left side and the right side of the fixing ring are respectively movably connected to the insides of the two sliding grooves.

Further, movable grooves are formed on the opposite surfaces of the two sliders, and the top and bottom of the sound-absorbing net are respectively movably connected to the insides of the two movable grooves.

Further, ventilation holes are opened inside the sound-absorbing cover, the first mounting plate, the second mounting plate and the protective cover.

Further, the output shaft of the motor extends to the inside of the casing, and the protective cover is funnel-shaped.

Compared with the prior art, the technical solution of the present application has the following beneficial effects:

The fan with noise reduction function has a better noise reduction effect by setting a fixing mechanism, a buffer spring seat and a noise reduction net. At the same time, it also has a convenient disassembly function for quick maintenance of the noise reduction equipment. And replacement, most of the existing fans use mufflers to reduce noise, which has limited noise reduction effect and limited effect on the resonance noise elimination effect of the driving structure. The noise reduction effect of wind noise is limited, and the use effect is relatively poor. The setting of the fixing mechanism, buffer spring seat and noise reduction net effectively solves this problem. Compared with the existing fans, it has a better noise reduction effect and is more convenient for maintenance and replacement of noise reduction equipment.

Description of drawings

Fig. 1 is a three-dimensional view of the structure protective cover of the present utility model;

Fig. 2 is a front sectional view of the utility model structure;

Fig. 3 is a left view of the structure of the utility model;

Fig. 4 is the enlarged structural diagram of structure A of the utility model.

In the figure: 1, installation plate; 2, fixed plate; 3, buffer spring seat; 4, fixed ring; 5, motor; 6, fixed frame; 7, casing; 8, air outlet pipe; 9, protective cover; 10 11, the second mounting plate; 12, the noise reduction cover; 13, the slider; 14, the noise reduction net; 15, the fixing mechanism; 151, the return spring seat; 152, the rotating ball; 154, rotating rod; 155, rotary knob.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, a fan with a noise reduction function in this embodiment includes a mounting plate 1, two mounting plates 2 are fixedly installed on the top of the mounting plate 1, and a buffer spring is fixedly installed on the top of the mounting plate 1 Seat 3, the top of buffer spring seat 3 is fixedly installed with fixed ring 4, and the internal activity of fixed ring 4 is installed with motor 5, and the top of mounting plate 1 is fixedly installed with two fixed mounts 6, and the internal movable installation of fixed mount 6 is organic Shell 7, an air outlet pipe 8 is fixedly installed on the top of the casing 7, a protective cover 9 is fixedly installed on the left side of the casing 7, and a first mounting plate 10 is fixedly installed on the left side of the protective cover 9, and the first mounting plate 10 A second mounting plate 11 is installed movably on the left side, and a muffler cover 12 is fixedly installed on the left side of the second mount plate 11. Two sliders 13 are fixedly installed inside the muffler cover 12, and the opposite surfaces of the two sliders 13 are movably installed. There is a sound-absorbing net 14, and a fixing mechanism 15 is arranged inside the first mounting plate 10;

The fixing mechanism 15 includes a return spring seat 151, the inside of the first mounting plate 10 is movably equipped with a return spring seat 151, and the left side of the return spring seat 151 is movably equipped with a rotating ball 152, and the top and bottom of the rotating ball 152 are all fixedly installed in a limited position. A rotating rod 154 is fixedly installed on the left side of the plate 153 and the rotating ball 152 , and a rotating knob 155 is fixedly installed on the left end of the rotating rod 154 .

It is convenient to install and fix the equipment by setting the mounting plate 1. The setting of the fixing plate 2 can provide limit fixation for the fixing ring 4, the motor 5 can provide driving force for the equipment, and the setting of the fixing frame 6 and the casing 7 can be for the casing 7. Provide support and protection for fan blades and other equipment, the air outlet pipe 8 can discharge the drawn air, and the settings of the protective cover 9 and the first mounting plate 10 and the second mounting plate 11 can be connected to a fixed sound-absorbing cover 12

When implementing, follow these steps:

1) Start the motor 5 first to make it start running. When the motor 5 is running, resonance will occur. The resonance generated by the motor 5 can be buffered by the setting of the buffer spring seat 3, thereby reducing the resonance noise;

2) Then, through the operation of the motor 5, the equipment generates negative pressure suction, and the airflow is extracted from the noise reduction cover 12 into the interior of the casing 7. During the process of airflow entering, the noise reduction net 14 can eliminate wind noise and further reduce noise ;

3) Then turn the rotary knob 155 to drive the rotating rod 154 to rotate, and further drive the rotating ball 152 and the limiting plate 153 to rotate simultaneously. The first installation disk 10 and the second installation disk 11 are separated;

4) Finally, through the setting of the return spring seat 151, its reaction force can be used to strengthen the limit fixation of the limit plate 153.

To sum up, the fan with noise reduction function, by setting the fixing mechanism 15, the buffer spring seat 3 and the noise reduction net 14, the fan has a better noise reduction effect, and at the same time, it also has a convenient disassembly function, so that In terms of quick maintenance and replacement of noise reduction equipment, most of the existing fans use mufflers to reduce noise, which has a limited noise reduction effect, and has a limited effect on the resonance noise reduction of the drive structure. At the same time, it is limited by the fan When operating at a high altitude, the wind noise reduction effect produced is limited, and the use effect is relatively poor. The setting of the fixing mechanism 15, the buffer spring seat 3 and the noise reduction net 14 effectively solves this problem. Noise and slow vibration of the drive structure can further reduce the noise generated by the fan when it is running. Compared with the existing fans, it has a better noise reduction effect and is more convenient for maintenance and replacement of noise reduction equipment. .

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A fan with noise reduction function, comprising a mounting plate (1), characterized in that: the top of the mounting plate (1) is fixedly installed with two mounting plates (2), the mounting plate (1) A buffer spring seat (3) is fixedly installed on the top, and a fixed ring (4) is fixedly installed on the top of the buffer spring seat (3), and a motor (5) is installed on the inside of the fixed ring (4). Two fixing frames (6) are fixedly installed on the top of the plate (1), and an organic casing (7) is installed movable inside the fixing frame (6), and an air outlet pipe is fixedly installed on the top of the casing (7) (8), the left side of the casing (7) is fixedly equipped with a protective cover (9), and the left side of the protective cover (9) is fixedly installed with a first mounting plate (10), and the first mounting plate The left side of (10) is movably installed with the second mounting plate (11), and the left side of described second mounting plate (11) is fixedly installed with sound-absorbing cover (12), and the inside of described sound-absorbing cover (12) is fixedly installed with Two sliders (13), the opposite surfaces of the two sliders (13) are movably equipped with a sound-absorbing net (14), and the inside of the first mounting plate (10) is provided with a fixing mechanism (15); The fixing mechanism (15) includes a return spring seat (151), a return spring seat (151) is movably installed inside the first mounting plate (10), and a return spring seat (151) is movably installed on the left side of the return spring seat (151). Revolving ball (152), the top and bottom of described revolving ball (152) all fixedly install limiting plate (153), the left side of described revolving ball (152) is fixedly installed with rotating rod (154), and described rotating rod The left end of (154) is fixedly equipped with rotary knob (155). 2. A fan with noise reduction function according to claim 1, characterized in that: the inside of the first mounting plate (10) is provided with a rotating ball (152) and two limiting plates (153) A matching limiting slot, and a rotating slot matching the rotating rod (154) is opened inside the second mounting plate (11). 3. A fan with noise reduction function according to claim 1, characterized in that: the opposite surfaces of the two fixing plates (2) are provided with sliding grooves, and the left side of the fixing ring (4) and the right side are respectively movably connected to the insides of the two chutes. 4. A fan with noise reduction function according to claim 1, characterized in that: the opposite surfaces of the two sliders (13) are provided with movable grooves, and the top and bottom of the noise reduction net (14) Respectively movably connected to the inside of the two movable slots. 5. A fan with noise reduction function according to claim 1, characterized in that: the noise reduction cover (12), the first mounting plate (10), the second mounting plate (11) and the protective cover (9 ) are provided with ventilation holes inside. 6. A fan with noise reduction function according to claim 1, characterized in that: the output shaft of the motor (5) extends to the inside of the casing (7), and the protective cover (9) is funnel-shaped .

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