CN215370369U

CN215370369U - Suction muffler for fan

Info

Publication number: CN215370369U
Application number: CN202120662963.3U
Authority: CN
Inventors: 管凯; 仇学莲; 张磊; 韩春玉; 魏国勇; 陈亮
Original assignee: Shandong Zhanghuang Machinery Industry Co ltd
Current assignee: Shandong Zhanghuang Machinery Industry Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-31
Anticipated expiration: 2031-03-31

Abstract

The utility model belongs to the technical field of fan silencing device, especially, relate to a fan is with inhaling muffler, including the shell and locate outer hush cylinder, cartridge filter and interior hush cylinder in the shell, the one end of shell is equipped with the end cover, and in the outer hush cylinder was located to the cartridge filter, interior hush cylinder located in the cartridge filter, forms inlet air channel between outer hush cylinder and the cartridge filter, forms air outlet channel in cartridge filter and the interior hush cylinder, and the cartridge filter includes hole shell and metal mesh, and the metal mesh is convoluteed at hole shell lateral wall. According to the suction muffler for the fan, the filter cylinder of the suction muffler for the fan filters air by adopting the metal net, the metal net does not need to be replaced, the service life is long, the use by a user is convenient, and the user experience can be improved.

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

The silencer is usually connected to the fan when using to reduce the noise that the fan produced in the course of the work. The existing silencer comprises an outer silencing cylinder, a filter cylinder and an inner silencing cylinder, and air enters an inner cavity of a fan after entering the silencer and being subjected to sound absorption and noise reduction through the outer silencing cylinder, filter of the filter cylinder and sound absorption and noise reduction through an inner cylinder.

The cartridge filter includes the filter core, and the filter core plays filtered air's effect at fan work, guarantees to get into the inside air cleanness of fan, nevertheless dust and impurity in the easy deposit a lot of air of filter core in the fan use, and the time has blockked up easily for a long time and has filtered the gap, influences the filter effect, and causes fan sunction inlet pressure to rise, influences the fan and uses. Therefore, the filter element needs to be cleaned irregularly, but most of the filter elements of the existing silencers are made of polyurethane sponge, so that the filter element is easy to age after being cleaned for many times, and the service life of the filter element is short.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a suction muffler for a fan, wherein a filter cylinder of the suction muffler adopts a metal net to filter air, the metal net is not required to be replaced, the service life is long, the suction muffler is convenient for a user to use, and the user experience can be improved.

In order to solve the above problems, the present invention provides a suction muffler for a fan, including a housing, and an outer muffling cylinder, a filter cylinder, and an inner muffling cylinder disposed in the housing, wherein an end cap is disposed at one end of the housing, the filter cylinder is disposed in the outer muffling cylinder, the inner muffling cylinder is disposed in the filter cylinder, an air intake channel is formed between the outer muffling cylinder and the filter cylinder, an air outlet channel is formed in the filter cylinder and the inner muffling cylinder, the filter cylinder includes a hole shell and a metal mesh, and the metal mesh is wound around a side wall of the hole shell.

Furthermore, an elastic plate is arranged below the end cover, and the upper end of the filter cartridge is abutted to the elastic plate.

Further, the suction muffler for the fan further comprises an upper cover arranged on the upper side of the filter cartridge, the filter cartridge is abutted against the elastic plate through the upper cover, the upper cover comprises an annular rib arranged along the circumferential direction of the filter cartridge, and the annular rib is abutted against the outer side face and/or the inner side face of the filter cartridge.

Further, the suction muffler for the fan further comprises an upper cover arranged on the upper side of the filter cartridge, the filter cartridge is abutted to the elastic plate through the upper cover, and the upper cover is welded to the metal mesh.

Furthermore, the elastic plate is made of polyurethane soundproof cotton.

Furthermore, the outer edge of the elastic plate extends to a position between the outer silencing tube and the end cover.

Further, the hole shell comprises an inner hole shell and an outer hole shell, and the inner hole shell and the outer hole shell clamp the metal net.

Furthermore, the metal nets are provided with a plurality of layers, the pore diameters of each layer of metal net are consistent, and the meshes of two adjacent metal nets are arranged in a staggered manner; or, the metal net is provided with a plurality of layers, and the sizes of the meshes are reduced from outside to inside in sequence.

Further, the suction muffler for the fan further comprises a lower cover arranged on the lower side of the filter cartridge, the lower cover is abutted to the shell and welded with the metal mesh, the lower cover comprises an annular rib arranged along the circumferential direction of the filter cartridge, and the annular rib is abutted to the outer side face and/or the inner side face of the filter cartridge.

Further, the cartridge filter still includes the metal strip, and the metal mesh is located between metal strip and the hole shell, and the connecting piece passes metal strip, metal mesh and hole shell to be fixed in the hole shell with the metal mesh.

The suction muffler for the fan has the advantages that the filter cylinder of the suction muffler for the fan filters air through the metal net, the metal net is short in replacement period and long in service life, the suction muffler for the fan is convenient for users to use, user experience can be improved, and the problems in the prior art are effectively solved.

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 cross-sectional structural view of the filter cartridge of the embodiment of fig. 1.

Wherein, 1, a shell; 2. an outer silencing barrel; 3. a filter cartridge; 301. a pore shell; 3011. an inner bore shell; 3012. an outer bore shell; 302. a metal mesh; 4. an internal silencing barrel; 5. an end cap; 6. an air inlet channel; 7. an air outlet channel; 8. an elastic plate; 9. an upper cover; 901. an annular rib; 10. and (7) a lower cover.

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 is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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 utility model. 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.

In the present invention, as shown in fig. 1 to 2, there is provided a suction muffler for a fan, comprising a housing 1, and an outer sound-deadening cylinder 2, a filter cylinder 3 and an inner sound-deadening cylinder 4 which are arranged in the housing 1, wherein an end cap 5 is arranged at one end of the housing 1, the filter cylinder 3 is arranged in the outer sound-deadening cylinder 2, the inner sound-deadening cylinder 4 is arranged in the filter cylinder 3, an air intake passage 6 is formed between the outer sound-deadening cylinder 2 and the filter cylinder 3, an air outlet passage 7 is formed in the filter cylinder 3 and the inner sound-deadening cylinder 4, the filter cylinder 3 comprises a hole shell 301 and a metal mesh 302, and the metal mesh 302 is wound around a side wall of the hole shell 301.

In the suction muffler for a blower according to the present invention, the hole casing 301 of the filter cartridge 3 has a function of supporting the metal mesh 302, so that the metal mesh 302 can be wound around the sidewall of the hole casing 301, the metal mesh 302 is prevented from being loosened, the filtering effect is ensured, and the metal mesh 302 can be easily fixed, for example, the metal mesh 302 can be fixed to the hole casing 301 by using a fastening member such as a rivet. The metal net 302 can filter the air entering the casing 1 from the air inlet passage 6, and prevent dust and impurities in the air from entering the fan. When metal mesh 302 is blockked up by dust and impurity, can wash metal mesh 302, because metal mesh 302 is metal material, also can not receive the damage after wasing many times, change cycle is short, long service life, convenience of customers uses, can promote user experience.

It should be noted that the metal mesh 302 may be a stainless steel metal mesh, which is corrosion resistant, wear resistant, and has a long service life.

More specifically, an elastic plate 8 is disposed below the end cap 5, and the upper end of the filter cartridge 3 abuts against the elastic plate 8. In the embodiment shown in fig. 1, the elastic plate 8 may be made of an elastic material, such as polyurethane soundproof cotton, rubber, etc., and can elastically deform, so that the upper end of the metal mesh 302 is tightly attached to the elastic plate 8, and a gap is prevented between the upper end of the metal mesh 302 and the elastic plate 8, thereby ensuring that air enters the air outlet channel 7 after being filtered by the metal mesh 302.

Further specifically, the suction muffler for the fan further comprises an upper cover 9 arranged on the upper side of the filter cartridge 3, the filter cartridge 3 is abutted to the elastic plate 8 through the upper cover 9, the upper cover 9 comprises an annular rib 901 arranged along the circumferential direction of the filter cartridge 3, and the annular rib 901 is abutted to the outer side face and/or the inner side face of the filter cartridge 3. There may be burr in the upper end of the metal mesh 302, scratch the elastic plate 8 easily when directly contacting the elastic plate 8, in the embodiment shown in fig. 1, the surface of the upper cover 9 is flat, the filter cartridge 3 is abutted to the elastic plate 8 through the upper cover 9, the elastic plate 8 can be prevented from being damaged, the service life of the elastic plate 8 is prolonged, and the upper cover 9 can support the elastic plate 8, and can keep the shape stability of the elastic plate 8. In addition, the annular rib 901 of the upper cover 9 can prevent air from entering the air outlet channel 7 from the gap between the upper end of the metal mesh 302 and the upper cover 9, thereby improving the filtering effect.

Further specifically, the suction muffler for the fan further includes an upper cover 9 disposed on the upper side of the filter cartridge 3, the filter cartridge 3 is abutted to the elastic plate 8 through the upper cover 9, and the upper cover 9 is welded to the metal mesh 302. In the embodiment shown in fig. 1, the metal mesh 302 is connected to the upper cover 9 by welding, so that a gap between the upper side of the metal mesh 302 and the upper cover 9 can be prevented, the upper cover 9 abuts against the elastic plate 8, so that a gap between the upper cover 9 and the elastic plate 8 can be prevented, and air can be ensured to enter the air outlet channel 7 after being filtered by the metal mesh 302.

More specifically, the elastic plate 8 is made of polyurethane soundproof cotton. The polyurethane soundproof cotton has good elasticity and can also play a role in sound absorption to a certain extent.

More specifically, the outer edge of the elastic plate 8 extends to between the outer silencing tube 2 and the end cap 5. In the embodiment shown in fig. 1, the elastic plate 8 may be fixed between the outer sound-deadening cylinder 2 and the end cover 5 by a fastener such as a bolt, for facilitating the fixing. Further, the elastic plate 8 can cover the area of the end cap 5 inside the outer noise-reduction tube 2, thereby preventing the end cap 5 from being directly hit by wind to generate noise and improving the sound insulation effect.

More specifically, the hole casing 301 includes an inner hole casing 3011 and an outer hole casing 3012, and the inner hole casing 3011 and the outer hole casing 3012 hold the metal mesh 302. In the embodiment shown in fig. 1, the inner hole casing 3011 and the outer hole casing 3012 can clamp the metal mesh 302, prevent the metal mesh 302 from loosening, and ensure the filtering effect.

More specifically, the metal mesh 302 is provided with a plurality of layers, the apertures of each layer of metal mesh 302 are consistent, and the meshes of two adjacent metal meshes 302 are arranged in a staggered manner; alternatively, the metal mesh 302 is provided with a plurality of layers, and the mesh sizes are reduced from outside to inside in sequence. The multi-layer metal mesh 302 carries out multi-stage filtration to the air, can improve the filter effect to reduce the probability that metal mesh 302 blocks up, reduce the cleaning frequency of metal mesh 302, prolong the life of metal mesh 302.

Further specifically, the suction muffler for the fan further includes a lower cover 10 disposed on the lower side of the filter cartridge 3, the lower cover 10 abuts against the housing 1, the lower cover 10 is welded to the metal mesh 302, the lower cover 10 includes an annular rib 901 disposed along the circumferential direction of the filter cartridge 3, and the annular rib 901 abuts against the outer side surface and/or the inner side surface of the filter cartridge 3. In the embodiment shown in fig. 1, the lower cover 10 abuts against the housing 1, and the lower cover 10 is welded to the metal mesh 302, so that a gap can be prevented from existing between the lower side of the metal mesh 302 and the lower cover 10, and the annular rib 901 of the lower cover 10 can further prevent air from entering the air outlet channel 7 from the lower side of the metal mesh 302, and ensure that the air enters the air outlet channel 7 after being filtered by the metal mesh 302.

More specifically, the filter cartridge 3 further comprises a metal strip, the metal mesh 302 is disposed between the metal strip and the pore shell 301, and the connecting member passes through the metal strip, the metal mesh 302 and the pore shell 301 to fix the metal mesh 302 to the pore shell 301. The metal mesh 302 is fixed on the hole shell 301 through metal strips and connecting pieces, so that the metal mesh can be conveniently fixed, and the metal mesh 302 can be prevented from being loosened to ensure the filtering effect. In addition, the metal mesh 302 can be compacted and edge-sealed by the metal strips, so that the fixing strength is high; the connecting piece can adopt a fastener such as a rivet.

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

1. The utility model provides a fan is with inhaling muffler, includes the shell and locates outer amortization section of thick bamboo, cartridge filter and interior amortization section of thick bamboo in the shell, the one end of shell is equipped with the end cover, the cartridge filter is located in the outer amortization section of thick bamboo, interior amortization section of thick bamboo is located in the cartridge filter, outer amortization section of thick bamboo with form air intake channel between the cartridge filter, the cartridge filter with interior amortization section of thick bamboo forms air outlet channel, its characterized in that, the cartridge filter includes hole shell and metal mesh, the metal mesh is convoluteed in hole shell lateral wall.

2. The suction muffler for a fan as claimed in claim 1, wherein an elastic plate is provided below the end cap, and an upper end of the filter cartridge abuts against the elastic plate.

3. The suction muffler for the blower according to claim 2, further comprising an upper cover disposed on an upper side of the filter cartridge, wherein the filter cartridge is abutted to the elastic plate through the upper cover, the upper cover includes an annular rib disposed along a circumferential direction of the filter cartridge, and the annular rib is abutted to an outer side surface and/or an inner side surface of the filter cartridge.

4. The suction muffler for a blower according to claim 2, further comprising an upper cover provided on an upper side of the filter cartridge, wherein the filter cartridge is abutted against the elastic plate via the upper cover, and the upper cover is welded to the metal mesh.

5. The suction muffler for a blower according to claim 2, wherein the elastic plate is polyurethane soundproof cotton.

6. The suction muffler for a fan as claimed in any one of claims 2 to 5, wherein the outer edge of the elastic plate extends between the outer muffling cartridge and the end cap.

7. The suction muffler for a fan as claimed in claim 1, wherein the perforated shell comprises an inner perforated shell and an outer perforated shell, the inner perforated shell and the outer perforated shell sandwiching the metal mesh.

8. The suction muffler for a fan as claimed in claim 1, wherein the metal mesh is provided with a plurality of layers, the apertures of each layer of the metal mesh are uniform, and the apertures of two adjacent metal meshes are arranged to be staggered;

or the metal net is provided with a plurality of layers, and the sizes of the meshes are reduced from outside to inside in sequence.

9. The suction muffler for a blower according to claim 1, further comprising a lower cover disposed on a lower side of the filter cartridge, wherein the lower cover abuts against the housing, the lower cover is welded to the metal mesh, and the lower cover includes an annular rib disposed along a circumferential direction of the filter cartridge, and the annular rib abuts against an outer side surface and/or an inner side surface of the filter cartridge.

10. The suction muffler for a blower according to claim 1, wherein the filter cartridge further comprises a metal strip, the metal mesh is provided between the metal strip and the port housing, and a connecting member passes through the metal strip, the metal mesh and the port housing to fix the metal mesh to the port housing.