CN214304569U - Suction muffler for fan - Google Patents

Abstract

The utility model belongs to the technical field of fan silencing device, especially, relate to a fan is with inhaling muffler, which comprises an outer shell, outer noise damping section of thick bamboo, cartridge filter and interior noise damping section of thick bamboo, the one end of shell is equipped with the end cover, in the shell was located to outer noise damping section of thick bamboo cover, in the cartridge filter was located to outer noise damping section of thick bamboo to the cartridge filter cover, interior noise damping section of thick bamboo cover was located in the cartridge filter, form air inlet channel between outer noise damping section of thick bamboo and the cartridge filter, form the air-out passageway in cartridge filter and the interior noise damping section of thick bamboo, the inboard of end cover is equipped with the abatvoix, the abatvoix covers the region that the end cover was inboard at outer noise damping section of thick bamboo at least. The utility model discloses the abatvoix that the end cover inboard that inhales the muffler for the fan set up can prevent that wind from directly impacting the end cover and producing the noise, improves the noise reduction effect to the abatvoix can slow down the impact force of part wind pressure, prevents that the end cover from receiving the damage, the utility model discloses a fan is with inhaling the effectual problem that exists among the prior art of having solved of muffler.

Description

Suction muffler for fan

Technical Field

The application belongs to the technical field of fan silencing devices, and particularly relates to a suction silencer for a fan.

Background

A blower is a device for compressing and delivering gas, which generates noise during operation, and is generally connected with a suction muffler in order to reduce the noise. The existing suction muffler comprises a shell, an outer silencing cylinder, a filter cylinder and an inner silencing cylinder, wherein an end cover is arranged at one end of the shell, one ends of the outer silencing cylinder and the filter cylinder are abutted to the inner side of the end cover, and wind possibly impacts the end cover after entering the suction muffler, so that noise is generated, and the noise reduction effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a fan is with inhaling muffler, the abatvoix that the end cover inboard set up can prevent that wind from directly impacting the end cover and producing the noise, improves the noise reduction effect to the abatvoix can slow down the impact force of part wind pressure, prevents that the end cover from receiving the damage, the utility model discloses a fan is with inhaling the effectual problem of having solved existence among the prior art of muffler.

In order to solve the problem, the utility model provides a fan is with inhaling muffler, which comprises an outer shell, outer noise damping section of thick bamboo, cartridge filter and interior noise damping section of thick bamboo, the one end of shell is equipped with the end cover, in the shell was located to outer noise damping cover, in the outer noise damping section of thick bamboo was located to the cartridge filter cover, in the cartridge filter was located to interior noise damping cover, form inlet air channel between outer noise damping section of thick bamboo and the cartridge filter, form air-out passageway in cartridge filter and the interior noise damping section of thick bamboo, the inboard of end cover is equipped with the abatvoix, the abatvoix covers the region that the end cover is inboard at outer noise damping section of thick bamboo at least.

Further, the sound-absorbing board is made of polyurethane soundproof cotton.

Furthermore, a pore plate is arranged between the sound-absorbing plate and the filter cartridge, and the sound-absorbing plate is clamped by the pore plate and the end cover.

Further, the orifice plate is formed with the location muscle that sets up along cartridge filter circumference, and the location muscle is fixed a position with the lateral surface butt of cartridge filter.

Furthermore, the end cover is provided with a reinforcing rib.

Furthermore, the strengthening rib is located the end cover outside, and the strengthening rib forms latticedly, and the strengthening rib is equipped with the hole that leaks.

Furthermore, the end cover and the sound-absorbing plate are fixed on the outer silencing barrel through fixing pieces.

Further, the end cover is provided with a handle.

Further, the sound-absorbing plate separates the end cover and the outer sound-absorbing cylinder.

Further, outer amortization section of thick bamboo lateral wall is formed with the spacing muscle that sets up along cartridge filter circumference, the lateral surface butt of spacing muscle and cartridge filter.

The beneficial effects of the utility model reside in that, the utility model provides a fan is with inhaling muffler, the abatvoix that the end cover inboard set up can prevent that wind from directly impacting the end cover and producing the noise, improves the noise reduction effect to the abatvoix can slow down the impact force of part wind pressure, prevents that the end cover from receiving the damage, the utility model discloses a fan is with inhaling the effectual problem of having solved existence among the prior art of muffler.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic cross-sectional view of a suction muffler for a blower according to an embodiment of the present invention.

Fig. 2 is a schematic top view of the end cap in the embodiment of fig. 1.

FIG. 3 is a side view of the end cap of the embodiment of FIG. 2.

Wherein, 1, a shell; 2. an outer silencing barrel; 201. limiting ribs; 3. a filter cartridge; 4. an internal silencing barrel; 5. an end cap; 501. reinforcing ribs; 502. a handle; 5011. a water leakage hole; 6. an air inlet channel; 7. an air outlet channel; 8. a sound-absorbing panel; 9. an orifice plate; 901. positioning ribs; 10. and a fixing member.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The utility model discloses in, as shown in fig. 1 to 3, a fan is with inhaling muffler is provided, including shell 1, outer noise damping section of thick bamboo 2, cartridge filter 3 and interior noise damping section of thick bamboo 4, the one end of shell 1 is equipped with end cover 5, in shell 1 is located to outer noise damping section of thick bamboo 2 cover, in outer noise damping section of thick bamboo 2 is located to cartridge filter 3 cover, in cartridge filter 3 is located to interior noise damping section of thick bamboo 4 cover, form inlet air duct 6 between outer noise damping section of thick bamboo 2 and the cartridge filter 3, form outlet air duct 7 in cartridge filter 3 and the interior noise damping section of thick bamboo 4, the inboard of end cover 5 is equipped with abatvoix 8, abatvoix 8 covers the region of end cover 5 at outer noise damping section of thick bamboo 2 inboards at least.

The utility model discloses a fan is with inhaling muffler, its air-out passageway 7 can communicate with the fan, and fan during operation, wind pass through inlet air channel 6 and get into in the shell 1, wind earlier through the 2 amortizations of outer amortization section of thick bamboo, filter through cartridge filter 3 again, then carry out noise cancelling treatment through interior amortization section of thick bamboo 4. The sound absorption plate 8 arranged on the inner side of the end cover 5 has a sound absorption effect, and can prevent wind from directly impacting the end cover 5 to generate noise, so that the noise reduction effect is improved. Moreover, because the sound-absorbing plate 8 can be made of elastic materials such as polyurethane soundproof cotton, rubber and the like, under the action of wind pressure, the sound-absorbing plate 8 can deform to relieve the impact force of partial wind pressure, and the end cover 5 is prevented from deforming and being damaged.

More specifically, the sound-absorbing plate 8 is made of polyurethane soundproof cotton. Polyurethane soundproof cotton has a large amount of gas pockets, can absorb and bounce-back some sound to make sound propagation weaken, polyurethane soundproof cotton rate of sound is high, and sound insulation is effectual.

More specifically, a pore plate 9 is arranged between the sound-absorbing plate 8 and the filter cylinder 3, and the sound-absorbing plate 8 is clamped between the pore plate 9 and the end cover 5. In the embodiment shown in fig. 1, the perforated plate 9 acts as a support for the sound-absorbing plate 8, and the sound-absorbing plate 8 can be fixed between the perforated plate 9 and the end cap 5, so that the sound-absorbing plate 8 is prevented from collapsing in the direction of the filter cartridge 3, and the shape of the sound-absorbing plate 8 is maintained stable. Moreover, when the abatvoix 8 adopted elastic material, orifice plate 9 was difficult to deform in comparison with abatvoix 8, kept more easily with the stable butt between the cartridge filter 3 to prevent leaking out between cartridge filter 3 and the abatvoix 8.

Preferably, the orifice plate 9 is attached to the end cap 5 in a manner such that the orifice plate 9 and the end cap 5 are connected to each other, and the sound-absorbing panel 8 can be sandwiched and fixed between the orifice plate 9 and the end cap 5. Alternatively, the orifice plate 9 may be lifted up against the end cap 5 directly through the filter cartridge 3.

More specifically, the orifice plate 9 is formed with a positioning rib 901 provided along the circumferential direction of the filter cartridge 3, and the positioning rib 901 is abutted against the outer side surface of the filter cartridge 3 for positioning. In the embodiment shown in fig. 1, the positioning ribs 901 can position the filter cartridge 3 to prevent the filter cartridge 3 from shaking. It should be noted that the positioning rib may be a plurality of positioning protrusions arranged at intervals along the circumferential direction of the filter cartridge 3, or may be an annular rib arranged along the circumferential direction of the filter cartridge 3.

More specifically, the end cap 5 is provided with a reinforcing rib 501. In the embodiment shown in fig. 1, the reinforcing ribs 501 can improve the strength of the end cover 5, avoid the resonance of the end cover 5 caused by the vibration of the fan, and reduce the vibration value of the whole machine.

More specifically, the reinforcing ribs 501 are arranged on the outer side of the end cover 5, the reinforcing ribs 501 form a grid shape, and the reinforcing ribs 501 are provided with water leakage holes 5011. In the embodiment shown in fig. 2 and 3, the reinforcing ribs 501 are arranged outside the end cover 5, so that the production and processing are convenient, the reinforcing ribs 501 form a grid shape, the strength of the end cover 5 can be improved, and in addition, when the suction muffler for the fan is used outdoors, rainwater can flow out through the water leakage holes 5011, so that the rainwater is prevented from being retained on the end cover 5, and the service life of the suction muffler for the fan is prolonged.

More specifically, the end cap 5 and the sound-absorbing plate 8 are fixed to the outer sound-deadening cylinder 2 by fixing members 10. The fixing is convenient and firm. The fixing member 10 may be a bolt which is fixed to the outer sound-deadening cylinder 2 after passing through the end cover 5 and the sound-absorbing plate 8.

More specifically, the end cap 5 is provided with a handle 502. In the embodiment shown in fig. 1, the end cap 5 can be mounted to the housing 1 by a handle 502 for ease of handling and assembly.

More specifically, the sound-absorbing plate 8 partitions the end cap 5 and the outer sound-deadening cylinder 2. In the embodiment shown in fig. 1, the outer sound-deadening cylinder 2 abuts against the sound-absorbing panel 8, and the sound-absorbing panel 8 has elasticity and is capable of deforming, thereby preventing a gap from being generated between the outer sound-deadening cylinder 2, the end cap 5, and the sound-absorbing panel 8 and improving the sound-deadening effect.

Further specifically speaking, the lateral wall of the outer silencing barrel 2 is provided with a limiting rib 201 arranged along the circumferential direction of the filter barrel 3, and the limiting rib 201 is abutted against the outer side surface of the filter barrel 3. In the embodiment shown in fig. 1, the limiting rib 201 can limit the outer noise-damping barrel 2, so as to prevent the outer noise-damping barrel 2 from shaking, and make the outer noise-damping barrel 2 more stable.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A suction silencer for a fan comprises a shell, an outer silencing barrel, a filter barrel and an inner silencing barrel, wherein an end cover is arranged at one end of the shell, the outer silencing barrel is sleeved in the shell, the filter barrel is sleeved in the outer silencing barrel, the inner silencing barrel is sleeved in the filter barrel, an air inlet channel is formed between the outer silencing barrel and the filter barrel, and an air outlet channel is formed in the filter barrel and the inner silencing barrel.

2. The suction muffler for a blower according to claim 1, wherein the sound-absorbing plate is polyurethane soundproof cotton.

3. The suction muffler for a blower according to claim 1, wherein a perforated plate is provided between the sound-absorbing plate and the filter cartridge, and the perforated plate and the end cap sandwich the sound-absorbing plate.

4. The suction muffler for a fan as claimed in claim 3, wherein the orifice plate is formed with a positioning rib provided along a circumferential direction of the filter cartridge, and the positioning rib is positioned in abutment with an outer side surface of the filter cartridge.

5. The suction muffler for a fan as claimed in claim 1, wherein the end cap is provided with a reinforcing rib.

6. The suction muffler for a fan as claimed in claim 5, wherein the reinforcing ribs are provided on an outer side of the end cap, the reinforcing ribs are formed in a grid shape, and the reinforcing ribs are provided with water leakage holes.

7. The suction muffler for a blower according to claim 1, wherein the end cap and the sound-absorbing plate are fixed to the outer muffler barrel by a fixing member.

8. The suction muffler for a blower of claim 1, wherein the end cap is provided with a handle.

9. The suction muffler for a blower of claim 1, wherein the sound absorbing plate separates the end cap and the outer silencer bowl.

10. The suction muffler for a fan as claimed in claim 1, wherein the outer muffler cylinder has a side wall formed with a stopper rib provided along a circumferential direction of the filter cylinder, and the stopper rib abuts against an outer side surface of the filter cylinder.

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