CN202510151U - Negative pressure air duct - Google Patents
Negative pressure air duct Download PDFInfo
- Publication number
- CN202510151U CN202510151U CN2012201113018U CN201220111301U CN202510151U CN 202510151 U CN202510151 U CN 202510151U CN 2012201113018 U CN2012201113018 U CN 2012201113018U CN 201220111301 U CN201220111301 U CN 201220111301U CN 202510151 U CN202510151 U CN 202510151U
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- negative pressure
- air duct
- duct body
- pressure air
- 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
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A negative pressure air duct comprise a duct body (1) which is formed by a flame retardant antistatic plastic coated cloth, the duct body (1) is arranged on a spiral steel wire (2), and a plurality of pressing strips (3) and hanging rings (4) are evenly arranged on an outer wall of the duct body (1). An end portion of the duct body (1) is provided with an end ring (5), a joint of the end portion of the duct body (1) is provided with a reverse side cloth, and the reverse side cloth is covered on the joint. The pitch of the spiral steel wire (2) is 100-150 millimeters, the distance between each two hanging rings (4) is 600 millimeters, the external diameter of the duct body (1) is 300-1000 millimeters, and the height of the duct body is 1000 millimeters. The negative pressure air duct has the advantages of small windage resistance, high stability, low air leakage rate, long service life and flexible arrangement.
Description
Technical field
The utility model relates to a kind of air duct, is specifically related to a kind of negative pressure air duct.
Background technology
Traditional negative pressure air duct may cause the air duct internal diameter inconsistent because of not of uniform size the causing of end ring, makes that the windage of air duct is excessive, and air leak rate of air curtain is high.
The negative pressure air duct that is used for the mine now can be divided into hard typing air duct and scalable air duct two big classes.Hard ventilating tube connects complex process, can not flexible arrangement, and it is big to take up space.The windage of scalable air duct is big, and anti-negative pressure ability is low, and the life-span is short, and maintenance is had strict requirement.
The utility model content
The purpose of the utility model promptly is to overcome the deficiency of prior art, and a kind of negative pressure air duct is provided, and it is little that it has windage, and stability is high, and air leak rate of air curtain is low, but the life-span is long and the advantage of flexible arrangement.
The purpose of the utility model realizes through following technical scheme:
A kind of negative pressure air duct, it comprises the cylindrical shell of being made up of the fire retardant antistatic plastic coated cloth, cylindrical shell is arranged on the spiral wire; Evenly be provided with a plurality of press strips and suspension ring on the outer wall of cylindrical shell; The end of cylindrical shell is provided with end ring, and the end-fitting place of cylindrical shell is provided with anti-limit cloth, and anti-limit cloth covers the joint.
The pitch of spiral wire is 100 ~ 150mm, and the spacing of described suspension ring is 600mm, and the external diameter of described cylindrical shell is 300 ~ 1000mm, and the length of cylindrical shell is 1000mm.
The advantage of the utility model is: the internal diameter of air duct is consistent, and windage is little; Adopt spiral wire as skeleton, scalable and flexible arrangement, because spiral wire has elasticity, stability is high, the life-span is long; The end-fitting place of cylindrical shell is provided with anti-limit cloth, and anti-limit cloth covers the joint, makes that air leak rate of air curtain was low when air duct connected.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the left view of the utility model
Among the figure, 1-cylindrical shell, 2-spiral wire, 3-press strip, 4-suspension ring, 5-end ring.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further, the protection domain of the utility model is not limited to the following stated.
As depicted in figs. 1 and 2; A kind of negative pressure air duct, it comprises the cylindrical shell of being made up of the fire retardant antistatic plastic coated cloth 1, cylindrical shell 1 is arranged on the spiral wire 2; Evenly be provided with a plurality of press strips 3 and suspension ring 4 on the outer wall of cylindrical shell 1; The end of cylindrical shell 1 is provided with end ring 5, and the end-fitting place of cylindrical shell 1 is provided with anti-limit cloth, and anti-limit cloth covers the joint.The pitch of spiral wire 2 is 100 ~ 150mm, and the spacing of described suspension ring 4 is 600mm, and the external diameter of described cylindrical shell 1 is 300 ~ 1000mm, and the length of cylindrical shell is 1000mm.
Claims (2)
1. negative pressure air duct; It is characterized in that: it comprises the cylindrical shell of being made up of the fire retardant antistatic plastic coated cloth (1); Cylindrical shell (1) is arranged on the spiral wire (2), evenly is provided with a plurality of press strips (3) and suspension ring (4) on the outer wall of cylindrical shell (1), and the end of cylindrical shell (1) is provided with end ring (5); The end-fitting place of cylindrical shell (1) is provided with anti-limit cloth, and anti-limit cloth covers the joint.
2. a kind of negative pressure air duct according to claim 1; It is characterized in that: the pitch of described spiral wire (2) is 100 ~ 150mm; The spacing of described suspension ring (4) is 600mm, and the external diameter of described cylindrical shell (1) is 300 ~ 1000mm, and the length of cylindrical shell (1) is 1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201113018U CN202510151U (en) | 2012-03-22 | 2012-03-22 | Negative pressure air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201113018U CN202510151U (en) | 2012-03-22 | 2012-03-22 | Negative pressure air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510151U true CN202510151U (en) | 2012-10-31 |
Family
ID=47062643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201113018U Expired - Fee Related CN202510151U (en) | 2012-03-22 | 2012-03-22 | Negative pressure air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420880A (en) * | 2013-08-27 | 2015-03-18 | 成都众成新型复合材料有限公司 | Negative-pressure air drum system and mounting method thereof |
-
2012
- 2012-03-22 CN CN2012201113018U patent/CN202510151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420880A (en) * | 2013-08-27 | 2015-03-18 | 成都众成新型复合材料有限公司 | Negative-pressure air drum system and mounting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202510151U (en) | Negative pressure air duct | |
| CN202731236U (en) | Improved sheet metal air conduit | |
| CN202978518U (en) | Motor housing | |
| CN205199793U (en) | Tower segment is dummy -flange device for application | |
| CN202521079U (en) | Anti-bending radiating hose | |
| CN103644571A (en) | Chimney steel pipe with filter layer | |
| CN203781438U (en) | Diameter increasing mechanism for aluminum plate rolling hub | |
| CN204416783U (en) | A kind of tetrafluoro graphite intertexture packing winding wheel | |
| CN204265126U (en) | A kind of waterproof roll spool | |
| CN202510848U (en) | Positive-pressure air duct | |
| CN203336065U (en) | Modified PVC-M pipe | |
| CN203660229U (en) | Commutator | |
| CN204114369U (en) | Compound bellows | |
| CN207231099U (en) | A kind of bracket of steel pipe drying mechanism | |
| CN203483974U (en) | Composite stainless-steel fiber felt | |
| CN203531945U (en) | Shock-resistant oxygen-supplying wall-attaching air duct | |
| CN201496091U (en) | Plastic coated fabric negative pressure air duct | |
| CN203095308U (en) | Simple mechanical expanding shaft | |
| CN202991660U (en) | Silencing barrel | |
| CN203162373U (en) | Telescopic braided tube | |
| CN203437552U (en) | Simple and practical tube guider | |
| CN202971725U (en) | Adjusting air spring seal device | |
| CN203906783U (en) | Seal element for silencer | |
| CN203362210U (en) | Light-weight negative-pressure wind tube | |
| CN204987363U (en) | Automatically controlled box and be equipped with mobile air conditioner of this automatically controlled box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140322 |