CN207526722U - A square low noise fan - Google Patents

Abstract

The utility model discloses a square low-noise fan, which comprises a fan frame, a rubber base and a rotary seat, wherein the rubber base is arranged at the bottom end of the fan frame, the rotary seat is arranged inside the square frame and is connected with the inner wall of the fan frame through a shock absorption frame, two sides of the fan frame are respectively provided with a blocking net and an air inlet hopper, the rotary seat is internally provided with a driving shaft which is driven by a rotary motor, the surface of one end of the rotary seat is evenly connected with a plurality of rotary fan blades, the surface of the rotary fan blade is provided with a plurality of grooves, the grooves are internally provided with silencing pads, the inner parts of the rotary fan blades are of hollow structures, two sides of the fan frame are both connected with silencing seats, the surfaces of the silencing seats are provided with connecting seats, the blocking net and the connecting seats are connected together, the fan has good air draft effect, and, reduce noise pollution, prolong the life of fan.

Description

A square low noise fan

technical field

The utility model relates to the technical field of fans, in particular to a square low-noise fan.

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 center; drying and selection of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc.;

However, the general fan will generate more noise when it is in use, and it will damage the internal structure of the fan after working for a long time, which is not conducive to use.

Utility model content

In order to overcome the shortcomings of the existing technical solutions, the utility model provides a square low-noise fan, which not only has a good exhaust effect, but also effectively reduces the noise and vibration generated by the fan through multiple combinations, reduces noise pollution, and prolongs the life of the fan. The service life can effectively solve the problems raised by the background technology.

The technical solution adopted by the utility model to solve the technical problem is: a square low-noise fan, including a fan frame, a rubber base and a swivel seat, the rubber base is installed at the bottom of the fan frame, and the swivel seat is set on Inside the square outer frame, the rotating seat is connected together with the inner wall of the outer frame of the fan through the shock absorber, the blocking net and the air intake bucket are respectively installed on both sides of the outer frame of the fan, and the driving shaft is arranged inside the rotating seat, so The drive shaft is driven by a rotating motor, and a number of rotating blades are evenly connected to the surface of one end of the rotating seat. There are several grooves on the surface of the rotating blades, and a sound-absorbing pad is arranged inside the grooves. The rotating fan The inside of the blade is a hollow structure, and both sides of the outer frame of the fan are connected with sound-absorbing seats, and the ring-shaped inner wall surface of the outer frame of the fan is equipped with a connecting seat, and the blocking net and the connecting seat are connected together.

As a preferred technical solution of the utility model, the shock absorber includes several elastic rods evenly connected with the inner wall of the outer frame of the fan, and shock absorbers are arranged at both ends of the elastic rods, and the shock absorbers are composed of sound-absorbing pads. Composed of cotton and TPU protection pads.

As a preferred technical solution of the utility model, several layers of sound-absorbing boards are arranged inside the rotating blade, the sound-absorbing board adopts a hole-like structure, and the surface of the rotating seat adopts a vacuum-pumped structure.

As a preferred technical solution of the utility model, the surface of the sound-absorbing seat is provided with several arc-shaped protrusions, and the interior of the arc-shaped protrusions is divided into several hollow layers by several partition plates, and the partition plates The surface is coated with a layer of sound-absorbing paint.

As a preferred technical solution of the utility model, the blocking net is composed of several fixed ring pipes, and the fixed ring pipes are connected together through hollow pipes, and the interior of the fixed ring pipes and the hollow pipes are vacuumized.

As a preferred technical solution of the utility model, the air intake hopper includes an air intake section, a dust removal section and a connecting section connected in sequence, and an opening is provided at the bottom of the dust removal section.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model adopts the shock absorber to reduce the vibration generated when the rotating fan blade of the rotating seat rotates, and has the effect of noise elimination while damping the shock, and at the same time, the noise generated by the fan is completely eliminated Elimination, played a very good role in protecting the fan.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the block diagram of the structure of the utility model;

Fig. 3 is the structure schematic diagram of shock absorber of the present utility model;

Fig. 4 is a schematic diagram of the overall side structure of the utility model;

Fig. 5 is a schematic diagram of the cross-sectional structure of the arc-shaped protrusion of the present invention;

Fig. 6 is a schematic diagram of the internal structure of the rotary blade of the present invention.

In the figure: 1-fan frame; 2-rubber base; 3-rotating seat; 4-shock mount; 5-blocking net; 6-intake bucket; 7-drive shaft; Groove; 10-muffling pad; 11-muffling seat; 12-connecting seat; 13-elastic rod; 14-shock pad; 15-sound-absorbing board; ; 19-fixed ring pipe; 20-hollow pipe; 21-intake section; 22-dust removal section; 23-dust removal section.

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.

The descriptions of the following embodiments are with reference to the accompanying drawings to illustrate the specific embodiments that the present utility model can be used to implement. The terms of direction and position mentioned in the present invention, such as "upper", "middle", "lower", "front", "back", "left", "right", "inner", "outer", " "Side", etc., are only for reference to the direction and position of the attached drawings. Therefore, the used terms of direction and position are used to illustrate and understand the present invention, but not to limit the present invention.

Example:

As shown in Figures 1 to 6, the utility model provides a square low-noise fan, including a fan frame 1, a rubber base 2 and a swivel seat 3, the rubber base 2 is installed at the bottom of the fan frame 1, so The rotating seat 3 is arranged inside the square outer frame 1, and the rotating seat 3 is connected with the inner wall of the outer frame 1 of the fan through the shock absorber 4. When the fan is working, the vibration generated by the shock absorber 4 is reduced. The shock absorber 4 includes several elastic rods 13 uniformly connected to the inner wall of the outer frame 1 of the fan. Both ends of the elastic rods 13 are provided with shock absorbing pads 14. The shock absorbing pads 14 are composed of sound-absorbing cotton and TPU protective pads. Due to the cushioning effect of the elastic rod 13, the sound wave energy generated by the vibration is transmitted to the inside of the shock absorbing pad 14 at both ends. Since the shock absorbing pad 14 is composed of sound-absorbing cotton and TPU protection pad, the sound wave is fully absorbed inside the shock absorbing pad 13, thereby Play the role of shock absorption and eliminate noise;

As shown in Fig. 1, Fig. 4 and Fig. 6, a blocking net 5 and an air intake bucket 6 are respectively installed on both sides of the outer frame of the fan 1, and a driving shaft 7 is arranged inside the rotating seat 3, and the driving shaft 7 passes through Driven by a rotating motor, the surface of the other end of the rotating base 3 is evenly connected with several rotating fan blades 8, the surface of the rotating fan blade 8 is provided with several grooves 9, and the inside of the groove 9 is provided with a sound-absorbing pad 10, so The interior of the rotating fan blade 8 is a hollow structure. Under the rotation of the rotating fan blade 8, the external air is sucked in through the air intake hopper 6 and discharged through the blocking net 5. When the rotating fan blade 8 rotates, it will rub against the air. The sound-absorbing pad 10 on the surface of the rotating fan blade 8 fully absorbs the sound, and the inside of the rotating fan blade 8 is provided with several layers of sound-absorbing panels 15, and at the same time, the sound-absorbing panels 15 absorb sound waves again, thereby greatly reducing the noise generated by the rotating fan blade 8;

As shown in Fig. 1, Fig. 2 and Fig. 5, both sides of the outer frame of the fan 1 are connected with sound-absorbing seats 11, and the annular inner wall surface of the outer frame of the fan 1 is equipped with a connecting seat 12, and the blocking net 5 and The connecting bases 12 are connected together, and the blocking net 5 is composed of several fixed ring pipes 19, and the fixed ring pipes 19 are connected together through hollow pipes 20, and the insides of the fixed ring pipes 19 and the hollow pipes 20 are vacuum pumped. processing, the noise that has not been eliminated first passes through the sound-absorbing seat 11, since the surface of the sound-absorbing seat 11 is provided with several arc-shaped protrusions 16, the inside of the arc-shaped protrusion 16 is divided into several hollow layers by several partition plates 17 18, and the surface of the partition plate 17 is coated with a layer of sound-absorbing paint, so that when the noise passes through the sound-absorbing seat 11, the sound wave is introduced into the inside of the arc-shaped protrusion 16, and passes through the layers of the partition plate 17 coated with sound-absorbing paint. Absorption, absorbing most of the noise; when the unabsorbed residual sound waves pass through the blocking net 5, the noise is difficult to transmit due to the fixed ring tube 19 and the hollow tube 20 of the internal vacuum structure, achieving the effect of noise reduction;

As shown in Figure 4, preferably, the sound-absorbing panel 15 adopts a hole-like structure, and the surface of the rotating seat 3 adopts a vacuumized structure; the air intake hopper 6 includes an air intake section 21 and a dust removal section 22 connected in sequence and the connection section 23, the bottom end of the dust removal section 22 is provided with an opening, the external air first passes through the air inlet section 21, and then enters the inside of the dust removal section 22, because the air inlet section 21 and the bottom end of the dust removal section 22 are connected together, so that the air in the The dust collides with the inside of the dust removal section 22 and falls under the action of gravity, while the air that filters the dust enters the inside of the fan frame 1 through the connecting section 23 at the top, and is discharged through the blocking net 5 to realize the filtration of the air.

In summary, the main features of the utility model are:

(1) The utility model adopts the shock absorber to effectively reduce the vibration generated when the fan is working, prevent the internal components of the fan from being damaged due to vibration, and at the same time have a certain noise reduction effect;

(2) The utility model adopts the rotating seat that is vacuumed through the inner wall, the rotating fan blade with sound-absorbing ability, the sound-absorbing seat and the blocking net to successively silence the generated sound waves, thereby effectively reducing the overall noise and reducing noise pollution.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. a kind of rectangular low-noise fan, it is characterised in that：Including fan outer frame（1）, rubber base plate（2）And rotating seat（3）, institute State rubber base plate（2）Mounted on fan outer frame（1）Bottom end, the rotating seat（3）It is arranged on square frame（1）Inside, the rotation Swivel base（3）Pass through dynamic mount（4）And fan outer frame（1）Inner wall links together, the fan outer frame（1）Both sides are separately installed with Stop net（5）With air inlet bucket（6）, the rotating seat（3）It is internally provided with drive shaft（7）, the drive shaft（7）Pass through electric rotating Machine drives, the rotating seat（3）Another end surfaces are uniformly connected with several rotary fans（8）, the rotary fan（8）Surface It is provided with several grooves（9）, the groove（9）It is internally provided with silencing pad（10）, the rotary fan（8）Inside is hollow Structure, the fan outer frame（1）Both sides are respectively connected with noise reduction seat（11）, the fan outer frame（1）Internal annular inner wall surface Connecting seat is installed（12）, the blocking net（5）And connecting seat（12）It links together.

2. a kind of rectangular low-noise fan according to claim 1, it is characterised in that：The dynamic mount（4）Including several A and fan outer frame（1）The elastic rod that inner wall uniformly connects（13）, the elastic rod（13）Both ends are both provided with beam（14）, The beam（14）It is made of acoustical cotton and TPU neonychiums.

3. a kind of rectangular low-noise fan according to claim 1, it is characterised in that：The rotary fan（8）Inside is set If it is equipped with dried layer abatvoix（15）, the abatvoix（15）Using cavernous structure, the rotating seat（3）Surface uses and vacuumizes knot Structure.

4. a kind of rectangular low-noise fan according to claim 1, it is characterised in that：The noise reduction seat（11）Surface is set There are several arc convex（16）, the arc convex（16）Inside passes through several demarcation strips（17）It is divided into several voided layers （18）, and the demarcation strip（17）Surface is coated with one layer of sound deadening coating.

5. a kind of rectangular low-noise fan according to claim 1, it is characterised in that：The blocking net（5）By several Fixed endless tube（19）Composition, the fixed endless tube（19）Pass through hollow pipe（20）It links together, the fixed endless tube（19）With Hollow pipe（20）It is internal to use vacuumize process.

6. a kind of rectangular low-noise fan according to claim 1, it is characterised in that：The air inlet bucket（6）Including sequentially The air inlet section of connection（21）, dedusting section（22）And linkage section（23）, the dedusting section（22）Bottom end is equipped with opening.