CN204358271U - A kind of quiet volute - Google Patents
A kind of quiet volute Download PDFInfo
- Publication number
- CN204358271U CN204358271U CN201420636004.4U CN201420636004U CN204358271U CN 204358271 U CN204358271 U CN 204358271U CN 201420636004 U CN201420636004 U CN 201420636004U CN 204358271 U CN204358271 U CN 204358271U
- Authority
- CN
- China
- Prior art keywords
- volute
- quiet
- polyvinyl chloride
- internal layer
- rigid polyvinyl
- 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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- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The utility model discloses a kind of quiet volute, comprises soft PVC internal layer and rigid polyvinyl chloride skin, the inwall of soft PVC internal layer is equidistantly distributed with many spiral ribs, is provided with cavity in rigid polyvinyl chloride skin.Soft PVC internal layer of the present utility model can effectively weaken and eliminate the noise that water impact tube wall produces, adding spiral rib again guides current to form attached wall swirling flow, and the outer field cavity of rigid polyvinyl chloride slackens and absorbs, three's acting in conjunction, produces obvious noise reduction.
Description
Technical field
The utility model relates to a kind of volute, particularly relates to a kind of quiet volute.
Background technique
Rigid polyvinyl chloride (PVC-U) waste pipe physical and mechanical property is excellent, resistance to chemical attack, and impact strength is high, and fluid resistance is little, and comparatively improve 30% with bore cast iron tube flow, ageing-resistant, long service life, is not less than 50 years service life.PVC-U waste pipe light weight is durable, easy for installation, saves construction cost, relative to the cast iron tube of same size, greatly can reduce operating expenses.In recent years, PVC drain pipe has been widely used in construction drainage field.
In use, water flow in pipeline clashes into tube wall and produces larger noise PVC-U waste pipe, and traditional PVC-U drain structure is single, and soundproof effect is poor, and noise enters the interior space of resident family, has had a strong impact on the living environment of resident family.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of quiet volute that can efficiently reduce and eliminate current noise.
The technical solution adopted in the utility model is:
A kind of quiet volute, comprises soft PVC internal layer and rigid polyvinyl chloride is outer, the inwall of soft PVC internal layer is equidistantly distributed with many spiral ribs, is provided with cavity in rigid polyvinyl chloride skin.
Described spiral rib comprises 6-12 bar.
The cross section of described spiral rib is triangular in shape.
The track of described spiral rib presents and is rotated counterclockwise.
Described cavity is longitudinally uniformly distributed along rigid polyvinyl chloride is outer, and the cross section of cavity is rectangle round edge.
Described soft PVC internal layer and rigid polyvinyl chloride skin one-body molded.
The utility model adopts above technological scheme, and soft PVC internal layer has certain elasticity, current is played to the effect of buffering energy dissipating, thus effectively weakens and eliminate the noise of water impact tube wall generation; On the inwall of adding soft PVC internal layer, spiral rib can guide the current entered in pipeline, forms attached wall swirling flow, makes pipeline central authorities form air column, make in pipeline that the water flows gently, fluid stable, the collision of minimizing current self and current to the shock of tube wall, and then reduce noise; When the faint noise that pipeline produces outwards is propagated, effectively weakened by the cavity structure in rigid polyvinyl chloride skin and eliminate.The acting in conjunction of three kinds of structures and performance, produce obvious noise reduction.Conventional P VC-U waste pipe generally reaches 60 decibels at draining peak period noise, and the quiet volute of one of the present utility model can make current Noise measarement below 45 decibels, and noise reduction is obvious.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details;
The structural representation of Fig. 1 a kind of quiet volute of the present utility model;
The cross sectional representation of Fig. 2 a kind of quiet volute of the present utility model.
Embodiment
As shown in the figures 1 and 2, a kind of quiet volute 1, comprise soft PVC internal layer 2 and rigid polyvinyl chloride skin 3, described soft PVC internal layer 2 adopts softening plasticised polyvinyl chloride formula to give its certain elasticity, and one-body molded with rigid polyvinyl chloride skin 3, both effectively melt knot together.The inwall of soft PVC internal layer 2 is equidistantly distributed with many spiral ribs 21, described spiral rib 21 comprises 6-12 bar.Be provided with cavity 31 in rigid polyvinyl chloride skin 3, cavity 31 is longitudinally uniformly distributed along rigid polyvinyl chloride outer 3, and cavity 31 sectional dimension is moderate, and crossing conference affects tubing intensity, too smallly affects soundproof effect.
As shown in Figure 2, a kind of cross sectional representation of quiet volute.The cross section of described spiral rib 21 is triangular in shape.The track of described spiral rib 21 presents and is rotated counterclockwise.The cross section of described cavity 31 is rectangle round edge.
The utility model adopts above technological scheme, and soft PVC internal layer 2 has certain elasticity, current is played to the effect of buffering energy dissipating, thus effectively weakens and eliminate the noise of water impact tube wall generation; On the inwall of adding soft PVC internal layer 2, spiral rib 21 can guide the current entered in pipeline, forms attached wall swirling flow, makes pipeline central authorities form air column, make in pipeline that the water flows gently, fluid stable, the collision of minimizing current self and current to the shock of tube wall, and then reduce noise; When the faint noise that pipeline produces outwards is propagated, effectively weakened by cavity 31 structure in rigid polyvinyl chloride skin 3 and eliminate.The acting in conjunction of three kinds of structures and performance, produce obvious noise reduction.Conventional P VC-U waste pipe generally reaches 60 decibels at draining peak period noise, and the quiet volute 1 of one of the present utility model can make current Noise measarement below 45 decibels, and noise reduction is obvious.
Claims (6)
1. a quiet volute, is characterized in that: it comprises soft PVC internal layer and rigid polyvinyl chloride is outer, the inwall of soft PVC internal layer is equidistantly distributed with many spiral ribs, is provided with cavity in rigid polyvinyl chloride skin.
2. the quiet volute of one according to claim 1, is characterized in that: described spiral rib comprises 6-12 bar.
3. the quiet volute of one according to claim 1, is characterized in that: the cross section of described spiral rib is triangular in shape.
4. the quiet volute of one according to claim 1, is characterized in that: the track of described spiral rib presents and is rotated counterclockwise.
5. the quiet volute of one according to claim 1, is characterized in that: described cavity is longitudinally uniformly distributed along rigid polyvinyl chloride is outer, and the cross section of cavity is rectangle round edge.
6. the quiet volute of one according to claim 1, is characterized in that: described soft PVC internal layer and rigid polyvinyl chloride skin one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636004.4U CN204358271U (en) | 2014-10-29 | 2014-10-29 | A kind of quiet volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636004.4U CN204358271U (en) | 2014-10-29 | 2014-10-29 | A kind of quiet volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358271U true CN204358271U (en) | 2015-05-27 |
Family
ID=53259741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636004.4U Expired - Fee Related CN204358271U (en) | 2014-10-29 | 2014-10-29 | A kind of quiet volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051321A (en) * | 2016-07-26 | 2016-10-26 | 上海亨公电线电缆有限公司 | Inner spiral tube and manufacturing method thereof |
-
2014
- 2014-10-29 CN CN201420636004.4U patent/CN204358271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051321A (en) * | 2016-07-26 | 2016-10-26 | 上海亨公电线电缆有限公司 | Inner spiral tube and manufacturing method thereof |
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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: 20150527 Termination date: 20161029 |