CN202519612U - Low-noise sweeping dual-purpose vehicle - Google Patents
Low-noise sweeping dual-purpose vehicle Download PDFInfo
- Publication number
- CN202519612U CN202519612U CN2012201287005U CN201220128700U CN202519612U CN 202519612 U CN202519612 U CN 202519612U CN 2012201287005 U CN2012201287005 U CN 2012201287005U CN 201220128700 U CN201220128700 U CN 201220128700U CN 202519612 U CN202519612 U CN 202519612U
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- CN
- China
- Prior art keywords
- noise
- dual
- purpose vehicle
- low
- sweeping
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The utility model discloses a low-noise sweeping dual-purpose vehicle. The low-noise sweeping dual-purpose vehicle comprises a high-pressure centrifugal fan. A noise reduction layer is added in an exhaust opening shell of the high-pressure centrifugal fan, noise reduction materials are filled in the noise reduction layer, and an air inflow air flue of the high-pressure centrifugal fan is provided with an arc-shaped transition part. Compared with the prior art, revolving speed of the high-pressure centrifugal fan is not needed to be lowered, and under the premise that normal operation of the sweeping dual-purpose vehicle is guaranteed, a function of lowering noise is achieved. In addition, the low-noise sweeping dual-purpose vehicle has the advantages of being convenient to manufacture and popularize.
Description
Technical field
The utility model relates to cleaning convertible car field, relates to a kind of low noise cleaning convertible car in particular, and it is through improving the centrifugal high pressure fan intake passage structure and increase the noise reduction measure, thereby reaches the effect that reduces operating noise.
Background technology
Wash and sweep convertible car in the course of the work, the noise that centrifugal high pressure fan produces is prone to cause contact personnel agitation and tired, and the hidden danger that also has hearing damage and be detrimental to health.In order to reduce noise, the most directly effective method all is the rotating speeds that reduce centrifugal high pressure fan at present, thereby reduces the contact frequency of impeller and air, and then reaches the effect that reduces noise.
But the method but can have influence on performances such as the blast, flow of centrifugal high pressure fan, causes centrifugal high pressure fan not reach actual instructions for use, thereby makes the cleaning convertible car to work in normal operation.
In view of this, the inventor has this case to produce to the above-mentioned defective further investigation when reducing cleaning convertible car noise at present then.
The utility model content
The purpose of the utility model is to provide a kind of low noise cleaning convertible car, to solve prior art can have influence on cleaning convertible car operate as normal when realizing reducing noise problem.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of low noise cleaning convertible car comprises centrifugal high pressure fan, and wherein, increasing in the inlet scoop housing of this centrifugal high pressure fan has the noise reduction layer, is filled with damping material in this noise reduction layer; The airintake wind-tunnel of this centrifugal high pressure fan is provided with arc transition portion.
Further, this arc transition portion skin also is provided with sound-absorbing material layer.
Further, this damping material adopts acoustical cotton.
After adopting said structure; A kind of low noise cleaning convertible car that the utility model relates to; It is through being provided with the noise reduction layer in the housing of the inlet scoop of centrifugal high pressure fan, again through being provided with arc transition portion at the airintake wind-tunnel place, thereby have the effect of preferable reduction noise; Compared with prior art, it need not to reduce rotating speed, can guarantee the normal operation of whole cleaning convertible car; In addition, the utility model also has characteristics easy to make, that be convenient to promote.
Description of drawings
The structural representation of Fig. 1 a kind of low noise cleaning convertible car mesohigh centrifugal blower for the utility model relates to;
Figure 1A is the enlarged diagram of A portion among Fig. 1;
The overall structure sketch map in Fig. 2 a kind of low noise cleaning convertible car mesohigh centrifugal blower and road-sweeper compartment for the utility model relates to;
Fig. 2 A is the enlarged diagram of B portion among Fig. 2.
Among the figure:
Centrifugal high pressure fan 1 inlet scoop housing 11
Airintake wind-tunnel 14 arc transition portions 15
Sound-absorbing material layer 16 compartments 2.
The specific embodiment
In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.
Shown in Fig. 1, Figure 1A, Fig. 2 and Fig. 2 A, the structural representation of its a kind of low noise cleaning convertible car mesohigh centrifugal blower 1 for the utility model relates to.
The improvements of the utility model are: increasing in the inlet scoop housing 11 of this centrifugal high pressure fan 1 has noise reduction layer 12; This noise reduction layer is filled with damping material for 12 li; This damping material preferably can adopt acoustical cotton; More specifically, also be provided with orifice plate 13 outside this noise reduction layer 12, this orifice plate 13 is used to play the fixedly effect of damping material; The utility model also is provided with arc transition portion 15 at the airintake wind-tunnel 14 of this centrifugal high pressure fan 1 simultaneously.
Like this, the utility model is through being provided with noise reduction layer 12 in the inlet scoop of centrifugal high pressure fan 1 housing 11, and is provided with arc transition portion 15 at airintake wind-tunnel 14 places, thereby can dual reduction noise, promptly reaches the effect of preferable reduction noise; Compared with prior art, the utility model need not to reduce rotating speed, can guarantee to realize reducing the effect of noise under the prerequisite that whole cleaning convertible car runs well.In addition, the utility model also has characteristics easy to make, that be convenient to promote.
Further; These arc transition portion 15 skins also are provided with sound-absorbing material layer 16, and shown in Fig. 2 and Fig. 2 A, this arc transition portion 15 is arranged on the compartment 2; This sound-absorbing material layer 16 then is arranged on the skin of arc transition portion 15, thereby further plays the effect that abates the noise.
Product form of the foregoing description and graphic and non-limiting the utility model and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.
Claims (3)
1. a low noise cleaning convertible car comprises centrifugal high pressure fan, it is characterized in that increasing in the inlet scoop housing of this centrifugal high pressure fan has the noise reduction layer, is filled with damping material in this noise reduction layer; The airintake wind-tunnel of this centrifugal high pressure fan is provided with arc transition portion.
2. a kind of low noise cleaning convertible car as claimed in claim 1 is characterized in that this arc transition portion skin also is provided with sound-absorbing material layer.
3. a kind of low noise cleaning convertible car as claimed in claim 1 is characterized in that this damping material adopts acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201287005U CN202519612U (en) | 2012-03-30 | 2012-03-30 | Low-noise sweeping dual-purpose vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201287005U CN202519612U (en) | 2012-03-30 | 2012-03-30 | Low-noise sweeping dual-purpose vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202519612U true CN202519612U (en) | 2012-11-07 |
Family
ID=47102567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201287005U Expired - Fee Related CN202519612U (en) | 2012-03-30 | 2012-03-30 | Low-noise sweeping dual-purpose vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202519612U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586845A (en) * | 2015-04-28 | 2016-05-18 | 徐工集团工程机械股份有限公司 | Sucker assembly and road sweeper |
| CN105736478A (en) * | 2016-03-30 | 2016-07-06 | 王刚 | Sound insulation and noise reduction device of draught fan |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
-
2012
- 2012-03-30 CN CN2012201287005U patent/CN202519612U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586845A (en) * | 2015-04-28 | 2016-05-18 | 徐工集团工程机械股份有限公司 | Sucker assembly and road sweeper |
| CN105586845B (en) * | 2015-04-28 | 2019-01-08 | 徐工集团工程机械股份有限公司 | Suction cup assembly and sweeper |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
| CN105736478A (en) * | 2016-03-30 | 2016-07-06 | 王刚 | Sound insulation and noise reduction device of draught fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20210330 |