CN201057320Y - Novel helical ventilation pipe - Google Patents
Novel helical ventilation pipe Download PDFInfo
- Publication number
- CN201057320Y CN201057320Y CNU2007201522381U CN200720152238U CN201057320Y CN 201057320 Y CN201057320 Y CN 201057320Y CN U2007201522381 U CNU2007201522381 U CN U2007201522381U CN 200720152238 U CN200720152238 U CN 200720152238U CN 201057320 Y CN201057320 Y CN 201057320Y
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- CN
- China
- Prior art keywords
- flange plate
- pipe body
- cold
- electric welding
- spiral
- 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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Abstract
The utility model provides a new spiral vent pipe, comprising a pipe body and a flange plate. The pipe body is connected with the flange plate in a matching way; the pipe body is composed by screwing, occluding and surrounding one side of a cold-rolled steel coil with the corresponding side. Convex ribs produced by screwing, occluding and surrounding the cold-rolled steel coil all bulge toward the external diameter of the pipe body. The utility model is characterized in that: electric welding bars are positioned between the lower edge of the pipe body and the outer wall of the flange plate as connection. Flame retardant sealing glue layers are positioned outside the electric welding bars and at the connecting place of the flange plate and the pipe body inner wall. The benefits of the technical proposal are that: the pipe body and the flange plate are connected by means of electric welding so as to avoid damage to the pipe body, thus the air impermeability of the spiral air pipe is improved and the pipe body is stressed evenly and with higher strength.
Description
Affiliated technical field
The utility model relates to a kind of architecture advances to spiral duct.
Background technique
Spiral duct is widely used in fields such as air-conditioning, fire damp extraction, the existing spiral duct of being made by cold-rolled steel coils has overcome shortcomings such as original inorganic glass-fiber reinforced plastic poor toughness, fragility are big, yielding, damp suction surface halide accumulation, poor water resistance, and shortcoming such as seamless steel pipe weight is big, installation difficulty is high, poor water resistance, corrosion-resistant, wall unevenness are even, and the polyvinyl chloride pipe is easily aging under moist, hot environment, under the northern cold cold environment pipe shaft easily break, shortcoming such as poor fire.
As shown in Figure 1, existing spiral duct has body 1 and flange plate 2, and body 1 and flange plate 2 cooperate and connect.Body 1 is formed to enclose to connect with its corresponding sides spiral interlock on one side by cold-rolled steel coils 10, and occlusion structure is seen Fig. 2.Cold-rolled steel coils 10 spiral interlocks are enclosed and are connect the convex tendon 11 that is produced and all protrude to body 1 external diameter.Body 1 is radially by sealing (cold-rolled steel coils 10 that constitutes body 1 is wrapped in flange plate 2 outer walls, owing to cross thin and not shown in the figures) with flame retardant sealant 4 again behind flange plate 2 and the body 1 with rivet 3 with the connecting mode that cooperates of flange plate 2.
Because spiral duct is applied in special dimensions such as air-conditioning, fire damp extraction, require very high to its tightness, the body of the spiral duct of said structure and the Placement of flange plate are because the artificial breakage that causes tube wall of riveting, increased the probability of gas leakage, because the riveting point is inconsistent, stressed even inadequately, the stressed when mounted excessive tube wall drawing crack that causes easily.
Summary of the invention
The utility model provides novel spiral ventilation duct, and its purpose solves the shortcoming that prior art exists, and the spiral duct that a kind of intensity is higher, be difficult for gas leakage is provided.
The technological scheme that its technical problem that solves the utility model adopts is:
Novel spiral ventilation duct, have body and flange plate, body and flange plate cooperate and connect, body is formed to enclose to connect with its corresponding sides spiral interlock on one side by cold-rolled steel coils, the interlock of cold-rolled steel coils spiral is enclosed and is connect the convex tendon that is produced and all protrude to the body external diameter, it is characterized in that: be provided with the electric welding bar between body lower limb and the flange plate outer wall the two is connected, there is the flame retardant sealant layer electric welding joint and flange plate and inboard wall of tube body joint.
The usefulness of technique scheme is: adopt the electric welding mode that body is connected with flange plate and avoided the destruction of traditional riveting to body, thereby improved the tightness of spiral duct, and the body joint is stressed evenly, intensity is higher.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the prior art structural drawing
Fig. 2 is the occlusion structure sectional drawing
Fig. 3 is the utility model structural drawing
Embodiment
As shown in Figure 3, spiral duct of the present utility model has body 1 and flange plate 2, and body 1 and flange plate 2 cooperate and connect.Body 1 is formed to enclose to connect with its corresponding sides spiral interlock on one side by cold-rolled steel coils 10.Cold-rolled steel coils 10 spiral interlocks are enclosed and are connect the convex tendon 11 that is produced and all protrude to body 1 external diameter.
Being provided with electric welding bar 5 between body 1 lower limb and flange plate 2 outer walls is connected the two, the electric welding bar 5 outer flange plate 2 that reach have flame retardant sealant layer 4 (cold-rolled steel coils 10 that constitutes body 1 is wrapped in flange plate 2 outer walls, owing to cross thin and not shown in the figures) with body 1 inwall joint.
Claims (1)
1. novel spiral ventilation duct, have body and flange plate, body and flange plate cooperate and connect, body is formed to enclose to connect with its corresponding sides spiral interlock on one side by cold-rolled steel coils, the interlock of cold-rolled steel coils spiral is enclosed and is connect the convex tendon that is produced and all protrude to the body external diameter, it is characterized in that: be provided with the electric welding bar between body lower limb and the flange plate outer wall the two is connected, the electric welding bar reaches flange plate outward and there is the flame retardant sealant layer inboard wall of tube body joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201522381U CN201057320Y (en) | 2007-06-14 | 2007-06-14 | Novel helical ventilation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201522381U CN201057320Y (en) | 2007-06-14 | 2007-06-14 | Novel helical ventilation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057320Y true CN201057320Y (en) | 2008-05-07 |
Family
ID=39426163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201522381U Expired - Fee Related CN201057320Y (en) | 2007-06-14 | 2007-06-14 | Novel helical ventilation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057320Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966811A (en) * | 2012-11-01 | 2013-03-13 | 江苏澄工机械制造有限公司 | Galvanized spiral gas drainage pipe and processing method thereof |
-
2007
- 2007-06-14 CN CNU2007201522381U patent/CN201057320Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966811A (en) * | 2012-11-01 | 2013-03-13 | 江苏澄工机械制造有限公司 | Galvanized spiral gas drainage pipe and processing method thereof |
| CN102966811B (en) * | 2012-11-01 | 2015-09-30 | 江苏澄工机械制造有限公司 | A kind of zinc-coated spiral gas drainage pipe and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090206 Address after: Jiangyin Huamei Industrial Park, Jiangsu, China: 214414 Patentee after: Jiangsu Chenggong Machinery Manufacturing Co., Ltd. Address before: Room 14, building 502, six village, garden 214400, Jiangsu, Jiangyin Patentee before: Xiang Bo |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU CHENGGONG MACHINERY MANUFACTURING CO., LTD Free format text: FORMER OWNER: XIANG BO Effective date: 20090206 |
|
| 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: 20080507 Termination date: 20160614 |