CN215058484U - Silencer for axial flow fan - Google Patents

Abstract

The utility model discloses an silencing device for axial-flow fan, including the body, locate this internal amortization section of thick bamboo, locate amortization part in the amortization section of thick bamboo, locate the guide part in the amortization section of thick bamboo and locate the shock attenuation part of body below, the amortization part is including locating multilayer acoustical panel on the amortization section of thick bamboo inner wall, locating a plurality of amortization pieces of acoustical panel bottom, locating a plurality of amortization chambeies that form between acoustical panel and the amortization section of thick bamboo inner wall, locating the annular portion of amortization section of thick bamboo top and bottom and locating a plurality of amortization cotton on the amortization section of thick bamboo inner wall, the utility model discloses a damping plate, flexible bucket, telescopic link and the spring interact who sets up among the shock attenuation part make the noise that vibrations produced reduce once more, have solved the problem that current device can produce the noise.

Description

Silencer for axial flow fan

Technical Field

The utility model belongs to the technical field of the fan, especially, relate to an silencing device for axial fan.

Background

Axial fans, also known as local fans, are widely used, for example, fans outside electric fans and air conditioners are axial fans, and the problems in the prior art are that: thereby can produce a little noise and can influence people's normal life when axial fan moves, in order to make people's normal living standard improve to require axial fan to the demand of amortization.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides an silencing device for axial fan possesses the advantage of eliminating partial noise, has solved the problem that current device can produce the noise.

The utility model discloses a realize like this, a silencing device for axial fan, including the body, locate this internal amortization section of thick bamboo, locate amortization part in the amortization section of thick bamboo, locate the guide part in the amortization section of thick bamboo and locate the shock attenuation part of body below, the amortization part is including locating multilayer acoustical panel on the amortization section of thick bamboo inner wall, locating a plurality of amortization pieces of acoustical panel bottom, locating a plurality of amortization chambeies that form between acoustical panel and the amortization section of thick bamboo inner wall, locating the annular portion of amortization section of thick bamboo top and bottom and locating a plurality of amortization cottons on the amortization section of thick bamboo inner wall.

As the utility model discloses preferred, the guide part is including locating the wind-guiding leaf in the amortization section of thick bamboo, locating the fixed axle in the amortization section of thick bamboo, locating the semi-circular buffer body of fixed axle one end and locating a plurality of dead levers on the fixed axle, the one end of dead lever and the interior wall connection of amortization section of thick bamboo, the other end and the fixed axle connection of dead lever.

As the utility model discloses it is preferred, body one end is equipped with expands the wind gap, the other end of body is equipped with the air outlet, be equipped with the annular buffer board that is used for buffering wind-force on the expansion wind gap inner wall.

As the utility model discloses preferred, be equipped with on the amortization section of thick bamboo outer wall and be used for protecting the not impaired a protection section of thick bamboo of amortization section of thick bamboo.

As the utility model discloses it is preferred, be equipped with first mount and second mount on the protection section of thick bamboo outer wall, all be equipped with two fixed legs on first mount and the second mount.

As the utility model discloses preferred, the shock attenuation part is including locating the shock attenuation board of body below, locating flexible bucket on the shock attenuation board, locate on the fixed leg with flexible bucket matched with telescopic link and locate the spring on the shock attenuation board, the one end and the fixed leg of spring are connected, the other end and the shock attenuation board of spring are connected.

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

1. the utility model discloses a set up the amortization part, can make the noise that the device produced when the operation get into in the amortization part to make the volume reduce, improve and equip efficiency.

2. The utility model discloses a set up the wind-guiding part, can make the device can slow down air flow rate when the inspiratory air of in-process of function passes through the wind-guiding part, the noise also can reduce thereupon when air flow rate reduces.

3. The utility model discloses a set up the wind expanding mouth, increase inspiratory air when can making axial fan inhale gas, through setting up the air outlet, can make gaseous discharge with higher speed when eduction gear, through setting up the buffer board, get into more easily when can making gaseous admission apparatus.

4. The utility model discloses a set up a protection section of thick bamboo, can make the amortization section of thick bamboo not receive the influence of outside a little condition, better protection amortization section of thick bamboo.

5. The utility model discloses a set up first mount and second mount, can make the device fix more easily when the function, through setting up fixed leg, better fixed when can making the device function receives the vibrations influence to reduce.

6. The utility model discloses a set up the shock attenuation part, thereby can make the device when the function, thereby the vibrations that the reducing mechanism received influence the noise that the reducing mechanism produced when vibrations.

Drawings

Fig. 1 is a schematic structural diagram provided in an embodiment of the present invention;

fig. 2 is a rear view provided by an embodiment of the present invention;

fig. 3 is a cross-sectional view taken at D-D according to an embodiment of the present invention;

fig. 4 is a right side view provided by an embodiment of the present invention;

fig. 5 is an enlarged view of a portion a in a right side view provided by an embodiment of the present invention.

In the figure: 1. a body; 101. a silencing barrel; 1011. a sound-absorbing panel; 1012. a sound-deadening block; 1013. a sound-deadening chamber; 1014. an annular portion; 1015. silencing cotton; 1021. a wind guide blade; 1022. a fixed shaft; 1023. a buffer body; 1024. fixing the rod; 2. expanding an air opening; 3. a protective cylinder; 201. an air outlet; 202. a buffer plate; 4. a first fixing frame; 401. a second fixing frame; 402. a fixed leg; 1031. a damper plate; 1032. a telescopic barrel; 1033. a telescopic rod; 1034. a spring.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The structure of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, an embodiment of the present invention provides a silencer for axial flow fan, including a body 1, a silencing tube 101 disposed in the body 1, a silencing part disposed in the silencing tube 101, an air guiding part disposed in the silencing tube 101, and a damping part disposed below the body 1, the silencing part includes a multi-layer silencing plate 1011 disposed on an inner wall of the silencing tube 101, a plurality of silencing blocks 1012 disposed at a bottom of the silencing plate 1011, a plurality of silencing cavities 1013 formed between the silencing plate 1011 and an inner wall of the silencing tube 101, a ring portion 1014 disposed at a top and a bottom of the silencing tube 101, and a plurality of silencing cotton 1015 disposed on an inner wall of the silencing tube 101.

Referring to fig. 3, the air guiding member includes an air guiding blade 1021 arranged in the silencing pot 101, a fixing shaft 1022 arranged in the silencing pot 101, a semicircular buffer 1023 arranged at one end of the fixing shaft 1022, and a plurality of fixing rods 1024 arranged on the fixing shaft 1022, wherein one end of each fixing rod 1024 is connected with the inner wall of the silencing pot 101, and the other end of each fixing rod 1024 is connected with the fixing shaft 1022.

Adopt above-mentioned scheme: by arranging the air guide part, the air flow speed can be reduced when air sucked by the device passes through the air guide part in the operation process, and the noise is reduced when the air flow speed is reduced.

Referring to fig. 3, one end of the body is provided with an air expanding opening 2, the other end of the body 1 is provided with an air outlet 201, and an annular buffer plate 202 for buffering wind power is arranged on the inner wall of the air expanding opening 2.

Adopt above-mentioned scheme: through setting up the diffuser 2, increase inspiratory air when can making axial fan inhale gas, through setting up air outlet 201, can make gas discharge with higher speed when eduction gear, through setting up buffer board 202, can make gas get into the device time entering more easily.

Referring to fig. 3, a protection cylinder 3 for protecting the silencing cylinder 101 from being damaged is arranged on the outer wall of the silencing cylinder 101.

Adopt above-mentioned scheme: by providing the protection tube 3, the silencing tube 101 can be protected from a slight external condition.

Referring to fig. 3, a first fixing frame 4 and a second fixing frame 401 are disposed on an outer wall of the protection cylinder 3, and two fixing legs 402 are disposed on the first fixing frame 4 and the second fixing frame 401.

Adopt above-mentioned scheme: through setting up first mount 4 and second mount 401, can make the device fix more easily when the operation, through setting up fixed leg 402, can make better fixed when the device operates, receive the vibrations influence to reduce.

Referring to fig. 5, the damping means includes a damping plate 1031 disposed below the body 1, a telescopic barrel 1032 disposed on the damping plate 1031, a telescopic rod 1033 disposed on the fixing leg 402 to be engaged with the telescopic barrel 1032, and a spring 1034 disposed on the damping plate 1031, one end of the spring 1034 is connected to the fixing leg 402, and the other end of the spring 1034 is connected to the damping plate 1031.

Adopt above-mentioned scheme: through setting up the shock attenuation part, can make the device when the operation, reduce the vibration influence that the device received thereby reduce the noise that the device produced when shaking.

The utility model discloses a theory of operation:

when the axial flow fan is used, gas firstly enters the air expansion port 2 and then enters the silencing cylinder 101 through the air guide blade 1021, noise is generated after the gas enters the device, the gas can be influenced by the air guide blade 1021 to reduce the flow rate of the gas when passing through the air guide blade 1021, the noise generated by the gas after the flow rate is reduced can be reduced again under the influence of the multiple layers of silencing plates 1011 in the silencing cylinder 101, the silencing blocks 1012 at the bottom of the silencing plates 1011 and the silencing cavities 1013, the device can generate vibration during operation, the device can also generate noise during vibration, at the moment, the vibration of the device can enable the damping plates 1031, the telescopic barrel 1032, the telescopic rods 1033 and the springs 1034 which are matched with the fixed legs 402 and the telescopic barrel 1032 to be matched with each other to operate to reduce the noise again, and finally the gas can be discharged from the air outlet 201.

In summary, the following steps: the silencing device for the axial flow fan reduces the flow velocity generated when gas enters the silencing barrel 101 through the wind guide blade 1021 in the silencing part, and the noise generated by the reduction of the flow velocity is reduced; the noise is absorbed through the silencing cotton 1015 after entering the silencing cylinder 101, so that the noise is reduced for the second time, the device can also make the machine body vibrate when in operation, and the noise generated by vibration is reduced again through the interaction of the damping plate 1031, the telescopic barrel 1032, the telescopic rod 1033 and the spring 1034 which are arranged in the damping part, so that the problem that the existing device can generate noise is solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (6)

1. The utility model provides a silencing device for axial fan, includes body (1), locates amortization section of thick bamboo (101) in body (1), locates amortization part in amortization section of thick bamboo (101), locates the guide part in amortization section of thick bamboo (101) and locates the shock attenuation part of body (1) below, its characterized in that: the silencing component comprises a multilayer silencing plate (1011) arranged on the inner wall of the silencing barrel (101), a plurality of silencing blocks (1012) arranged at the bottom of the silencing plate (1011), a plurality of silencing cavities (1013) formed between the silencing plate (1011) and the inner wall of the silencing barrel (101), annular parts (1014) arranged at the top and the bottom of the silencing barrel (101) and a plurality of silencing cotton (1015) arranged on the inner wall of the silencing barrel (101).

2. The silencer for an axial flow fan according to claim 1, wherein: the wind guide part comprises a wind guide blade (1021) arranged in the silencing barrel (101), a fixing shaft (1022) arranged in the silencing barrel (101), a semicircular buffer body (1023) arranged at one end of the fixing shaft (1022) and a plurality of fixing rods (1024) arranged on the fixing shaft (1022), one ends of the fixing rods (1024) are connected with the inner wall of the silencing barrel (101), and the other ends of the fixing rods (1024) are connected with the fixing shaft (1022).

3. The silencer for an axial flow fan according to claim 1, wherein: the wind power generator is characterized in that one end of the body (1) is provided with a wind expanding opening (2), the other end of the body (1) is provided with a wind outlet (201), and an annular buffer plate (202) used for buffering wind power is arranged on the inner wall of the wind expanding opening (2).

4. The silencer for an axial flow fan according to claim 1, wherein: and a protection barrel (3) for protecting the silencing barrel (101) from being damaged is arranged on the outer wall of the silencing barrel (101).

5. The silencer for an axial flow fan according to claim 1, wherein: the outer wall of the protection barrel (3) is provided with a first fixing frame (4) and a second fixing frame (401), and the first fixing frame (4) and the second fixing frame (401) are both provided with two fixing legs (402).

6. The silencer for an axial flow fan according to claim 1, wherein: the damping part comprises a damping plate (1031) arranged below the body (1), a telescopic barrel (1032) arranged on the damping plate (1031), a telescopic rod (1033) arranged on the fixing leg (402) and matched with the telescopic barrel (1032) and a spring (1034) arranged on the damping plate (1031), one end of the spring (1034) is connected with the fixing leg (402), and the other end of the spring (1034) is connected with the damping plate (1031).

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