CN203175855U - Low-noise Roots pump - Google Patents
Low-noise Roots pump Download PDFInfo
- Publication number
- CN203175855U CN203175855U CN 201320230579 CN201320230579U CN203175855U CN 203175855 U CN203175855 U CN 203175855U CN 201320230579 CN201320230579 CN 201320230579 CN 201320230579 U CN201320230579 U CN 201320230579U CN 203175855 U CN203175855 U CN 203175855U
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- CN
- China
- Prior art keywords
- noise
- low
- roots pump
- shell body
- utility
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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.)
- Expired - Fee Related
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- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a low-noise Roots pump. The low-noise Roots pump comprises screws (4), an upper shell body (2), a lower shell body (3) and an inner lining (1) formed through carrying out injection molding on a PA (Polyamide) material, wherein a silencing cotton layer (5) is sleeved outside the inner lining (1), and the upper shell body (2) and the lower shell body (3) are sleeved at the upper and lower sides of the silencing cotton layer (5) and are of up-and-down fixed connection through the screws (4). The low-noise Roots pump disclosed by the utility model has the advantages that the noise generated by a rotor is reduced effectively, and the noise pollution is reduced.
Description
Technical field
The utility model belongs to the Roots pump field, is specifically related to the low Roots pump of a kind of noise.
Background technique
Existing Roots pump generally all comprises rotor and shell, and when the low Roots pump of noise was worked, the noise that described rotor rotation produces was directly outwards propagated from enclosure, makes noise pollution serious.
The model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model is to reduce the noise that the Roots pump rotor is propagated.(2) technological scheme
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: the Roots pump that a kind of noise is low, comprise that screw, upper shell, lower shell body and one are by the PA(polyamide) liner of material molding and forming, the outside of described liner is with one deck noise reduction cotton, described upper shell and lower shell body are enclosed within the both sides up and down of noise reduction cotton, and described upper shell and lower shell body are connected and fixed up and down by screw.
Wherein, the quantity of described screw has 6.
Wherein, the inboard of described liner is provided with stiffening rib.
(3) beneficial effect
The low Roots pump of noise of the present utility model is injection molded PA material liner in advance, and be with one deck noise reduction cotton in the liner outside, the described two ends of two halves shell up and down compress liner and noise reduction cotton by the mode that is threaded, make the noise reduction cotton can effectively reduce the noise that rotor produces, reduced noise pollution.
Description of drawings
Fig. 1 is the plan view of the low Roots pump of the utility model noise;
Fig. 2 is the sectional view of A-A among the utility model Fig. 1;
1 is that liner, 2 is that upper shell, 3 is that lower shell body, 4 is that screw, 5 is that noise reduction cotton, 6 is stiffening rib among the figure.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
The low Roots pump of a kind of noise as depicted in figs. 1 and 2, comprise screw 4, upper shell 2, lower shell body 3 and the liner 1 by the molding and forming of PA material, the outside of described liner 1 is with one deck noise reduction cotton 5, described upper shell 2 and lower shell body 3 are enclosed within the both sides up and down of noise reduction cotton 5, and described upper shell 2 is connected and fixed up and down by screw 4 with lower shell body 3.
Wherein, the quantity of described screw 4 has 6.
Wherein, the inboard of described liner 1 is provided with stiffening rib 6, makes liner 1 sound construction.
The low Roots pump of noise of the present utility model is injection molded PA material liner 1 in advance, and be with one deck noise reduction cotton 5 in liner 1 outside, the two ends of described up and down two halves shell by screw about in the of 4 ways of connecting compress liner and noise reduction cotton, make the noise reduction cotton can effectively reduce the noise that rotor produces, reduced noise pollution.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. Roots pump that noise is low, it is characterized in that: the Roots pump that described noise is low comprises screw (4), upper shell (2), lower shell body (3) and a liner by the molding and forming of PA material (1), the outside of described liner (1) is with one deck noise reduction cotton (5), described upper shell (2) and lower shell body (3) are enclosed within the both sides up and down of noise reduction cotton (5), and described upper shell (2) is connected and fixed up and down by screw (4) with lower shell body (3).
2. the low Roots pump of noise according to claim 1, it is characterized in that: the quantity of described screw (4) has 6.
3. the low Roots pump of noise according to claim 1, it is characterized in that: the inboard of described liner (1) is provided with stiffening rib (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320230579 CN203175855U (en) | 2013-04-27 | 2013-04-27 | Low-noise Roots pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320230579 CN203175855U (en) | 2013-04-27 | 2013-04-27 | Low-noise Roots pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203175855U true CN203175855U (en) | 2013-09-04 |
Family
ID=49072558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320230579 Expired - Fee Related CN203175855U (en) | 2013-04-27 | 2013-04-27 | Low-noise Roots pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203175855U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106949050A (en) * | 2017-05-22 | 2017-07-14 | 马德宝真空设备集团有限公司 | A kind of lobe pump |
-
2013
- 2013-04-27 CN CN 201320230579 patent/CN203175855U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106949050A (en) * | 2017-05-22 | 2017-07-14 | 马德宝真空设备集团有限公司 | A kind of lobe pump |
CN106949050B (en) * | 2017-05-22 | 2020-04-21 | 马德宝真空设备集团有限公司 | Roots pump |
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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 |
Granted publication date: 20130904 Termination date: 20210427 |
|
CF01 | Termination of patent right due to non-payment of annual fee |