CN206403705U - A kind of muffler - Google Patents
A kind of muffler Download PDFInfo
- Publication number
- CN206403705U CN206403705U CN201621180868.5U CN201621180868U CN206403705U CN 206403705 U CN206403705 U CN 206403705U CN 201621180868 U CN201621180868 U CN 201621180868U CN 206403705 U CN206403705 U CN 206403705U
- Authority
- CN
- China
- Prior art keywords
- hole
- columnar part
- table top
- aperture
- muffler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of muffler, it includes hollow muffler body, muffler body includes the first columnar part and the second columnar part of stepped setting, the external diameter of first columnar part is less than the external diameter of the second columnar part, one end away from the second columnar part is provided with circular first table top perpendicular to air-out direction in first columnar part, the one end being connected in second columnar part with the first columnar part is provided with circular second table top perpendicular to air-out direction, a plurality of first through hole of the first table top of protrusion are evenly distributed with first table top along annular direction, the second through hole of the second table top of a plurality of protrusions is evenly distributed with second table top along annular direction, first through hole is perpendicular to the first table top and insertion to muffler body interior, second through hole is perpendicular to the second table top and insertion to muffler body interior, the aperture of first through hole is less than the aperture of the second through hole.The utility model can effectively eliminate noise during dust catcher operation, lift the comfortableness used.
Description
Technical field
The utility model is related to a kind of dust catcher accessory, and in particular to a kind of muffler for being used to eliminate vacuum cleaner noise.
Background technology
As the improvement of people's living standards, use of the dust catcher in office space, family is increasingly popularized.
The air-out noise reduction of traditional dust catcher is by increasing air channel tortuosity, that is, mazy air channel so that sound
Energy loss of the ripple in communication process and by disposing sound-absorbing porous material to absorb acoustic energy at air channel turning, so as to reach
To the purpose of noise reduction, the major defect of this structure is that sound-deadening and noise-reducing effect is poor.
The content of the invention
Goal of the invention of the present utility model is to provide a kind of muffler, can eliminate dust catcher wind noise.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of muffler, it includes hollow
Muffler body, the muffler body includes the first columnar part and the second columnar part of stepped setting, first post
The external diameter in shape portion is less than the external diameter of the second columnar part, in first columnar part one end away from the second columnar part be provided with perpendicular to
The one end being connected in circular first table top of air-out direction, second columnar part with the first columnar part is provided with perpendicular to air-out
On circular second table top in direction, first table top a plurality of the of the first table top of protrusion are evenly distributed with along annular direction
The second through holes of the second table top of a plurality of protrusions, described the are evenly distributed with one through hole, second table top along annular direction
One through hole perpendicular to the first table top and insertion to muffler body interior, second through hole perpendicular to the second table top and insertion extremely
Muffler body interior, the aperture of the first through hole is less than the aperture of the second through hole.
Further, the external diameter of first columnar part is 30 ~ 40mm, and the external diameter of second columnar part is 50 ~ 60mm.
Further, the internal diameter of first table top is 20 ~ 26mm, and the internal diameter of second table top is 34 ~ 40mm.
Further, the first through hole and the second through hole are circular port or polygonal hole.
Further, the aperture of the first through hole is 4 ~ 6mm, and the aperture of second through hole is 7 ~ 9mm.Preferably,
The aperture of the first through hole is 5mm, and the aperture of second through hole is 8mm.
Operation principle of the present utility model is：First through hole of the present utility model and the second through hole are circular port or polygon
Hole is separately positioned in the first columnar part and the second columnar part of stepped setting, and first through hole aperture is less than the second through hole
Aperture, to the principle of macropore air-out, reflects according to from aperture when sound wave is by first through hole and the second through hole, after reflection when
When the crest and trough of different sound waves meet, it can cancel out each other, so that the energy dropoff of sound wave, reaches the mesh of noise reduction
's.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1. the utility model sets a plurality of first to lead in the first columnar part and the second columnar part of stepped setting
Hole and the second through hole, and first through hole aperture is less than the second through-hole aperture, according to from aperture to the principle of macropore air-out, sound wave leads to
Reflected when crossing first through hole and the second through hole, can be mutual after reflection when the crest and trough of different sound waves meet
Offset, so that the energy dropoff of sound wave, reach the purpose of noise reduction, good muffling effect, improve that dust catcher uses is comfortable
Property；
2. the utility model is simple in construction, easily manufactured, suitable for popularization and application.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the cross-sectional view of the utility model embodiment one.
Wherein：1st, muffler body；2nd, the first columnar part；3rd, the second columnar part；4th, the first table top；5th, the second table top；6、
First through hole；7th, the second through hole.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Embodiment one：
Referring to shown in Fig. 1 and 2, a kind of muffler, it includes hollow muffler body 1, and the muffler body includes
The first columnar part 2 and the second columnar part 3 of stepped setting, the external diameter of first columnar part are less than the outer of the second columnar part
One end away from the second columnar part is provided with circular first table top 4 perpendicular to air-out direction, institute in footpath, first columnar part
The one end being connected in the second columnar part with the first columnar part is stated provided with circular second table top 5 perpendicular to air-out direction, it is described
Edge on a plurality of first through hole 6 of the first table top of protrusion, second table top is evenly distributed with first table top along annular direction
Annular direction is evenly distributed with the second through holes 7 of the second table top of a plurality of protrusions, the first through hole perpendicular to the first table top and
Insertion is to muffler body interior, and second through hole is perpendicular to the second table top and insertion to muffler body interior, described
The aperture of one through hole is less than the aperture of the second through hole.
In the present embodiment, the external diameter of first columnar part is 30 ~ 40mm, the external diameter of second columnar part for 50 ~
60mm。
The internal diameter of first table top is 20 ~ 26mm, and the internal diameter of second table top is 34 ~ 40mm.
The first through hole and the second through hole are circular port or polygonal hole.
The aperture of the first through hole is 4 ~ 6mm, and the aperture of second through hole is 7 ~ 9mm.
Operation principle of the present utility model is：First through hole of the present utility model and the second through hole are circular port or polygon
Hole is separately positioned in the first columnar part and the second columnar part of stepped setting, and first through hole aperture is less than the second through hole
Aperture, to the principle of macropore air-out, reflects according to from aperture when sound wave is by first through hole and the second through hole, after reflection when
When the crest and trough of different sound waves meet, it can cancel out each other, so that the energy dropoff of sound wave, reaches the mesh of noise reduction
's.
Claims (5)
1. a kind of muffler, it is characterised in that：It includes hollow muffler body（1）, the muffler body is including being in rank
The first columnar part that scalariform is set（2）With the second columnar part（3）, the external diameter of first columnar part is less than the outer of the second columnar part
Footpath；
One end away from the second columnar part is provided with circular first table top perpendicular to air-out direction in first columnar part
（4）, the one end being connected with the first columnar part in second columnar part is provided with circular second table top perpendicular to air-out direction
（5）；
A plurality of first through hole of the first table top of protrusion are evenly distributed with first table top along annular direction（6）, described
The second through hole of the second table top of a plurality of protrusions is evenly distributed with two table tops along annular direction（7）, the first through hole is vertical
In the first table top and insertion to muffler body interior, second through hole is perpendicular to the second table top and insertion to muffler body
Inside, the aperture of the first through hole is less than the aperture of the second through hole.
2. muffler according to claim 1, it is characterised in that：The external diameter of first columnar part is 30 ~ 40mm, described
The external diameter of second columnar part is 50 ~ 60mm.
3. muffler according to claim 1, it is characterised in that：The internal diameter of first table top is 20 ~ 26mm, described the
The internal diameter of two table tops is 34 ~ 40mm.
4. muffler according to claim 1, it is characterised in that：The first through hole and the second through hole are circular port or many
Side shape hole.
5. the muffler according to claim 1 or 4, it is characterised in that：The aperture of the first through hole is 4 ~ 6mm, described
The aperture of second through hole is 7 ~ 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621180868.5U CN206403705U (en) | 2016-10-27 | 2016-10-27 | A kind of muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621180868.5U CN206403705U (en) | 2016-10-27 | 2016-10-27 | A kind of muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206403705U true CN206403705U (en) | 2017-08-15 |
Family
ID=59547833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621180868.5U Expired - Fee Related CN206403705U (en) | 2016-10-27 | 2016-10-27 | A kind of muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206403705U (en) |
-
2016
- 2016-10-27 CN CN201621180868.5U patent/CN206403705U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |