CN203828842U - Dual-use wet and dry vacuum cleaner - Google Patents
Dual-use wet and dry vacuum cleaner Download PDFInfo
- Publication number
- CN203828842U CN203828842U CN201420013081.4U CN201420013081U CN203828842U CN 203828842 U CN203828842 U CN 203828842U CN 201420013081 U CN201420013081 U CN 201420013081U CN 203828842 U CN203828842 U CN 203828842U
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- CN
- China
- Prior art keywords
- air
- hush pipe
- hole
- holes
- dust catcher
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- 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.)
- Withdrawn - After Issue
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Abstract
A dual-use wet and dry vacuum cleaner comprises an air duct and a hush pipe, wherein the hush pipe is installed in the dust collection air duct and is provided with an open end and a closed end, the closed end and the open end are arranged oppositely, an extension wall is arranged between the open end and the closed end and provided with holes, air flow in the air duct enters the hush pipe from the open end and flows out from the holes, the hush pipe is further provided with an air plate, the air plate is provided with holes, and the air exhaust direction of the holes of the air plate and the air exhaust direction of the holes in the extension wall join to form a turbulent flow area; the other part of the air flow in the air duct is sprayed out via the holes in the air plate. As the air exhaust direction of the holes of the air plate and the air exhaust direction of the holes in the extension wall join, the direction of the air flow sprayed out from the holes in the extension wall is changed through the air flow sprayed out from the holes in the air plate, the air turbulence phenomenon is formed, a turbulent flow area is formed in a cavity between the hush pipe and the wall of the air duct, and by means of the air turbulence phenomenon, the noise grade is further decreased, and the noise reduction effect of the hush pipe is improved.
Description
Technical field
The utility model relates to dust catcher, especially with the dust catcher of duct silencer.
Background technology
Existing dust catcher product adopts porous material to reach the object of noise reduction as sponge etc. is wrapped in motor air outlet, and the shortcoming of this way is that the use of porous material has affected the flow of air-out.Patent CN200510095446 improves to some extent to the problems referred to above, this patent arranges aperture and reaches the object of noise reduction at dust catcher air outlet position, this structure does not make to change by the airflow direction of aperture, and the degree of depth of aperture is subject to mould and injection moulding to require restriction, and noise reduction is not fairly obvious.Korean Patent KR20070078336 has disclosed a kind of porous tubular structured in the air channel, inside of dust catcher, and it uses both mode noise reductions of micropore jet of similar noise reduction mode.
Utility model content
Technical problem to be solved in the utility model is to provide the better dust catcher of a kind of erasure effect, ensures air mass flow when reducing complete machine running noises.
The utility model provides a kind of Wet-dry dust catcher, it comprises: air channel, hush pipe, described hush pipe is arranged in dust absorbing air passage, hush pipe is provided with openend and blind end, blind end and openend are oppositely arranged, between openend and blind end, there is wall extension, hole arranged on wall extension, in air channel, air-flow enters hush pipe from openend and flows out from described hole, described hush pipe is also provided with aerofoil, hole is set on aerofoil, and on the outgassing direction in described aerofoil hole and wall extension, the outgassing direction in hole crosses and forms turbulent flow area.
Preferably, on wall extension, the aperture in hole is less than or equal to 5 millimeters, and any two holes, hole are in the heart apart from l and two aperture d1, d2 with meet inequality l >=d1+d2.
Preferably, aperture d1 and d2 equate.
Preferably, aperture d1 and d2 are unequal.
Preferably, between wall extension and air channel perisporium, have cavity, described turbulent flow area is positioned at cavity.
Preferably, have draw-in groove fixture in air channel, described aerofoil inserts in draw-in groove.
Preferably, described hush pipe is reduced to blind end cross section gradually by openend.
When dust catcher operation, part air-flow in air channel enters hush pipe air-flow by openend and sprays through the hole of 5 millimeters of being less than on wall extension, form the extraneous high-frequency sound of human auditory system, the hole ejection of another part air-flow in air channel on aerofoil, because the outgassing direction in hole on the outgassing direction in aerofoil hole and wall extension crosses, therefore the airflow direction that the air-flow being sprayed by aerofoil hole makes to spray in the hole on wall extension changes and forms air disturbance phenomenon, and form turbulent flow area in cavity between hush pipe and wind path wall, above-mentioned flow-disturbing phenomenon can be entered the noise reduction of noise decrease grade raising hush pipe, described make that circular hole is too not intensive guarantees noise reduction, ensure air output simultaneously.
Brief description of the drawings
Fig. 1 is dust catcher air channel cross section view.
Fig. 2 is X-X generalized section in Fig. 1.
Fig. 3 is local enlarged diagram in Fig. 2.
Fig. 4 is hush pipe schematic diagram.
Fig. 5 is hush pipe front view.
Fig. 6 is hush pipe lateral plan.
Fig. 7 is Fig. 6 partial enlarged drawing.
Fig. 8 is dust catcher air channel bottom sectional schematic diagram.
Fig. 9 is embodiment bis-hush pipe schematic diagrames.
Figure 10 is the local enlarged diagram of Fig. 9.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further detailed:
Embodiment mono-: comprise with reference to a kind of dust catcher shown in Fig. 1: for the head 6 of power is provided, in head 6, be provided with dust catcher air channel 1, dust absorbing air passage 1 is surrounded by perisporium 12 ringwise, hush pipe 2 is housed in air channel, by being connected and fixed between draw-in groove 11 and aerofoil 21, between hush pipe 2 wall extensions 23 and perisporium 12, there is cavity 3 in hush pipe 2 and air channel.Described draw-in groove 11 is arranged on perisporium 12, described aerofoil 21 is arranged on opening 22 peripheries of hush pipe 2, hole 210 is set on aerofoil 21, closely make air-flow can not pass through the gap that is connected between draw-in groove 11 and aerofoil 21 being connected between draw-in groove 11 and aerofoil 21, part air-flow enters hush pipe 2 inside by hush pipe 2 openends 22, then is flowed in the cavity 3 between wall extension 23 and perisporium 12 by hush pipe 2.
D1=d2 is with reference to shown in Fig. 3, dust catcher when work part air-flow V1 enters the interior air-flow of hush pipe 2 by openend 22 and sprays through the hole 25 that is less than 5 millimeters on wall extension 23, form the extraneous high-frequency sound of human auditory system, another part air-flow V2 hole 210 on aerofoil in air channel sprays, because the outgassing direction in hole 25 on the outgassing direction in aerofoil hole 210 and wall extension crosses, therefore the airflow direction that the air-flow being sprayed by aerofoil hole 210 sprays the hole 25 on wall extension changes and forms air disturbance phenomenon, and the interior formation of cavity 3 turbulent flow area S between hush pipe and wind path wall, thereby above-mentioned flow-disturbing phenomenon further noise decrease grade improves the noise reduction of hush pipe and reaches the object of noise reduction.
shown in Fig. 8, draw-in groove 11 is arranged on perisporium 12 and is surrounded by both sides projection 13, and aerofoil 21 and draw-in groove 11 favorable sealing property that is connected firmly simple in structure can be simplified production technology step and beat, and reduce human input, enhance productivity.
Embodiment bis-
Shown in Fig. 9: the second embodiment of hush pipe 2, its appearance profile is identical with the hush pipe in embodiment one, comprise openend 22 and blind end 24, openend 22 is oppositely arranged with blind end 24, between openend 22 and blind end 24, be provided with wall extension 23, wall extension 23 has a bottom surface 26 and two and is the side 27 of plane, end face is cambered surface 28, the height of cambered surface 28 reduces to blind end 24 gradually from openend 22, reduce gradually to the cross-sectional area of blind end 24 from openend 22,23 4 faces of wall extension are provided with circular hole 25 and aperture 29.
Hush pipe 2 is with respect to the hush pipe 2 described in embodiment mono-, the size in the aperture on its wall extension 23 changes to some extent, hush pipe 2 is covered with circular hole 25 near 22 of openends, hush pipe 2 is covered with aperture 29 near 24 of blind ends, described circular hole 25 apertures are greater than aperture 29 apertures, and the aperture of described circular hole 25 and aperture 29 is all less than 5 millimeters.
Shown in Figure 10: circular hole 25 aperture d1 and aperture 29 aperture d2 and hole distance in the heart
meet inequality l>=d1+d2, this inequality makes circular hole 25 and the aperture 29 can the too intensive noise reduction that affects, in the situation that ensureing air-out effect, hole is less apart from the volume of the less hush pipe 2 of l in the heart, makes it to be convenient to be arranged in less space, dust catcher air channel 1.
In above-mentioned two embodiment, when dust catcher moves on the one hand, part air-flow enters hush pipe by openend, and air-flow, through being less than the hole ejection of 5 millimeters on wall extension, forms the extraneous high-frequency sound of human auditory system; The hole ejection of another part air-flow in air channel on aerofoil on the other hand, because the outgassing direction in hole on the outgassing direction in hole on aerofoil and wall extension crosses, therefore by the air-flow of hole ejection on aerofoil, the airflow direction of the hole ejection on wall extension is changed and form air disturbance phenomenon, and forming turbulent flow area in cavity between hush pipe and wind path wall, above-mentioned flow-disturbing phenomenon can be entered noise decrease grade and improve the noise reduction of hush pipe.The relative prior art of the technical program can reduce 3-4 decibel in overall noise reduction.
Above-mentioned is the utility model preferred embodiment, but the utility model is non-limiting in this.Those skilled in the art all can make and change and revise not departing from the utility model claim scope, and therefore the utility model is as the criterion with claim protection domain.
Claims (7)
1. a Wet-dry dust catcher, it comprises: air channel, hush pipe, described hush pipe is arranged in dust absorbing air passage, hush pipe is provided with openend and blind end, blind end and openend are oppositely arranged, between openend and blind end, there is wall extension, hole arranged on wall extension, in air channel, air-flow enters hush pipe from openend and flows out from described hole, it is characterized in that: described hush pipe is also provided with aerofoil, hole is set on aerofoil, and on the outgassing direction in described aerofoil hole and wall extension, the outgassing direction in hole crosses and forms turbulent flow area.
2. a kind of Wet-dry dust catcher according to claim 1, is characterized in that: on described wall extension, the aperture in hole is less than or equal to 5 millimeters, and any two holes, hole are in the heart apart from l and two aperture d1, d2 with meet inequality l >=d1+d2.
3. a kind of Wet-dry dust catcher according to claim 2, is characterized in that: described aperture d1 and d2 equate.
4. a kind of Wet-dry dust catcher according to claim 2, is characterized in that: described aperture d1 and d2 are unequal.
5. a kind of Wet-dry dust catcher according to claim 1, is characterized in that: between described wall extension and air channel perisporium, have cavity, described turbulent flow area is positioned at cavity.
6. a kind of Wet-dry dust catcher according to claim 1, is characterized in that: in air channel, have draw-in groove fixture, described aerofoil inserts in draw-in groove.
7. a kind of Wet-dry dust catcher according to claim 4, is characterized in that: described hush pipe is reduced to blind end cross section gradually by openend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013081.4U CN203828842U (en) | 2014-01-10 | 2014-01-10 | Dual-use wet and dry vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013081.4U CN203828842U (en) | 2014-01-10 | 2014-01-10 | Dual-use wet and dry vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203828842U true CN203828842U (en) | 2014-09-17 |
Family
ID=51506743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013081.4U Withdrawn - After Issue CN203828842U (en) | 2014-01-10 | 2014-01-10 | Dual-use wet and dry vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203828842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771114A (en) * | 2014-01-10 | 2015-07-15 | 天佑电器（苏州）有限公司 | Wet or dry dust collector |
-
2014
- 2014-01-10 CN CN201420013081.4U patent/CN203828842U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771114A (en) * | 2014-01-10 | 2015-07-15 | 天佑电器（苏州）有限公司 | Wet or dry dust collector |
| WO2015103966A1 (en) * | 2014-01-10 | 2015-07-16 | 天佑电器（苏州）有限公司 | Wet and dry dual-purpose dust collector |
| CN104771114B (en) * | 2014-01-10 | 2017-05-10 | 天佑电器（苏州）有限公司 | Dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20170510 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20170510 |