CN202719305U - Connection structure of sheet steel coupling flange rectangular air duct - Google Patents
Connection structure of sheet steel coupling flange rectangular air duct Download PDFInfo
- Publication number
- CN202719305U CN202719305U CN 201220382031 CN201220382031U CN202719305U CN 202719305 U CN202719305 U CN 202719305U CN 201220382031 CN201220382031 CN 201220382031 CN 201220382031 U CN201220382031 U CN 201220382031U CN 202719305 U CN202719305 U CN 202719305U
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- coupling flange
- air duct
- flange
- described coupling
- rectangular air
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Abstract
The utility model provides a connection structure of a sheet steel coupling flange rectangular air duct. The connection structure enhances the strength of an air duct joint, improves sealing of the whole air duct system, decreases system air leakage rate, reduces cost of construction and installation, improves external thermal insulation effect of the air duct joint and raises thermal insulation properties at the same time. The connection structure comprises a rectangular air duct, wherein coupling flanges of the rectangular duct are arranged in one-to-one correspondence. The connection structure of the sheet steel coupling flange rectangular air duct is characterized in that a rubber blind-hole sponge mat is filled between inner sides of the two coupling flanges which are arranged in correspondence. An elongated metal strip is embedded on the outside of a long edge of one coupling flange. The elongated metal strip, a side edge of a long edge of one coupling flange corresponding to the elongated metal strip, the rubber blind-hole sponge mat, and a side edge of the long edge of the other coupling flange are fixedly connected. A side edge of a short edge of one coupling flange, the rubber blind-hole sponge mat, and a side edge of a short edge of the other coupling flange are fixedly connected.
Description
Technical field
The utility model relates to the technical field of air conditioner and smoke control system engineering, is specially a kind of linkage structure of thin steel plate connected flange rectangular air duct.
Background technique
Existing rectangular air duct linkage structure form take sheet metal as material mainly contains that the angle steel flange bolt connects, thin steel plate connected flange spring clip or jackscrew link and connect, S shape transplant a cutting connect, C shape transplants a cutting and connects, vertical associating dihedral is transplanted a cutting connection; There is following shortcoming in above-mentioned Connecting format: the angle steel flange manufacturing procedure is complicated, large with the material amount, fabricating cost is high, efficient is low, need to adopt rivet to be connected between airduct and the angle steel flange and the rivet place needs sealant sealing, so airduct inside flatness, cleanliness are relatively poor;
Although and the thin steel plate connected flange airduct has the advantage that internal surface is smooth, cleanliness is good, it is high that but airduct connects spring clip or the jackscrew card cost of usefulness, particularly the rear intensity of plate flange blast pipe connection is low altogether, leakproofness is poor for middle-and-high voltage system and large scale, vibrations during operation can cause that the airduct joint is loosening leaks out, and it is relatively poor that the structure of jackscrew card causes the outer heat insulation effect of airduct joint in addition; The cutting of S shape connects, C shape is transplanted a cutting and connected, and the Connecting format of vertical associating dihedral cutting is only applicable to the low service system airduct, and the long limit size of airduct is had strict demand, has significant limitation.
Summary of the invention
For the problems referred to above, the utility model provides a kind of linkage structure of thin steel plate connected flange rectangular air duct, its strengthened the airduct joint intensity, improved the leakproofness of whole air-line system, reduced the system air leakage amount; And reduced the construction and installation cost, improved simultaneously the outer heat insulation effect of airduct joint, improved thermal insulation property.
A kind of linkage structure of thin steel plate connected flange rectangular air duct, its technological scheme is such: it comprises rectangular air duct, the coupling flange of described rectangular air duct is corresponding the layout one by one, it is characterized in that: plug is equipped with rubber closed pore sponge mat between corresponding two described coupling flange inboards arranging, the outside on the long limit of a described coupling flange is embedded with the long strip metal bar, described long strip metal bar, long strip metal bar side, rubber closed pore sponge mat, another the described coupling flange on long limit of the corresponding described coupling flange side of growing the limit be fastenedly connected; The side three of the minor face of the side of the minor face of a described coupling flange, rubber closed pore sponge mat, another described coupling flange is fastenedly connected.
It is further characterized in that:
The outside of the minor face of a described coupling flange is embedded with the long strip metal bar, described long strip metal bar, long strip metal bar side, rubber closed pore sponge mat, the side of another described coupling flange minor face of minor face of a corresponding described coupling flange be fastenedly connected;
The system pressure of described rectangular air duct is≤when the low service system of 500Pa and the long limit of rectangular air duct≤1500mm, the side three around the side around the described coupling flange, rubber closed pore sponge mat, another the described coupling flange is fastenedly connected;
Described long strip metal bar is specially long strip zinc-coated flat steel sheet/or zinc-plated pressed steel plate of long strip;
Self threading pin is fastenedly connected side, the rubber closed pore sponge mat of long strip metal bar, a described coupling flange, the side of another described coupling flange;
Self threading pin is fastenedly connected side, the rubber closed pore sponge mat of a described coupling flange, the side of another described coupling flange;
Be provided with circular hole on the corresponding position of corresponding two described coupling flanges arranging;
Be provided with positioning hole on the described long strip metal bar, galvanized bolt is set with nut after running through successively the circular hole of circular hole, rubber closed pore sponge mat, another described coupling flange of positioning hole on the described long strip metal bar, one of them described coupling flange, and described fastening nuts is in the outside of another described coupling flange end face;
Described positioning hole is specially slotted hole/or circular hole;
Galvanized bolt is set with nut after running through successively the circular hole of circular hole, rubber closed pore sponge mat, another described coupling flange of one of them described coupling flange, and described fastening nuts is in the outside of another described coupling flange end face.
After adopting said structure of the present utility model, can significantly improve the intensity of thin steel plate connected flange rectangular air duct joint, rigidity, vibrations during anti-locking system operation cause the loosening air leakage phenomena of joint, guaranteed the leakproofness of system, particularly for middle-and-high voltage system (＞500Pa) and each length of side all＞when the thin steel plate connected flange rectangular air duct of 1000mm connects, be embedded with the intensity that the long strip metal bar has strengthened the airduct joint more by the outside at the corresponding described coupling flange in the long limit of rectangular air duct, improved the leakproofness of whole air-line system, significantly reduced the system air leakage amount, energy saving; Abandon in addition the jackscrew card and both reduced the construction and installation cost, improved simultaneously the outer heat insulation effect of airduct joint, improved thermal insulation property.
Description of drawings
Fig. 1 is the linkage structure schematic representation of galvanized bolt of the present utility model, long strip zinc-coated flat steel sheet, coupling flange, rubber closed pore sponge mat, nut;
Fig. 2 is the linkage structure schematic representation of galvanized bolt of the present utility model, coupling flange, rubber closed pore sponge mat, nut;
Fig. 3 is the linkage structure schematic representation of self threading pin of the present utility model, long strip zinc-coated flat steel sheet, coupling flange, rubber closed pore sponge mat;
Fig. 4 is the linkage structure schematic representation of self threading pin of the present utility model, coupling flange, rubber closed pore sponge mat;
Fig. 5 is the long strip zinc-coated flat steel sheet structural representation with slotted hole of the present utility model;
Fig. 6 is of the present utility model not with the long strip zinc-coated flat steel sheet structural representation of positioning hole.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, it comprises rectangular air duct 1, and the coupling flange 3 of rectangular air duct 1 is corresponding the layout one by one, and plug is equipped with rubber closed pore sponge mat 2 between corresponding two coupling flange 3 inboards arranging.
Do not see Fig. 6 with the structure of the long strip zinc-coated flat steel sheet 5 of positioning hole; The linkage structure of self threading pin 9, long strip zinc-coated flat steel sheet 5, coupling flange 3, rubber closed pore sponge mat 2, nut 6 is seen Fig. 3, and self threading pin 9 is fastenedly connected side, the rubber closed pore sponge mat 2 of long strip zinc-coated flat steel sheet 5, a coupling flange 3, the side of another described coupling flange 3.
The linkage structure of self threading pin 9, coupling flange 3, rubber closed pore sponge mat 2, nut 6 is seen Fig. 4, and self threading pin 9 is fastenedly connected side, the rubber closed pore sponge mat 2 of a coupling flange 3, the side of another coupling flange 3.
Specific embodiment one: middle-and-high voltage system (＞500Pa) each length of side all＞when the thin steel plate connected flange rectangular air duct of 1000mm connects, the long limit of rectangular air duct 1, corresponding coupling flange 3 sides of minor face all assemble according to Fig. 3 structure, namely be embedded with long strip zinc-coated flat steel sheet 5 around the outside of a coupling flange 3, self threading pin 9 is fastenedly connected side, the rubber closed pore sponge mat 2 of long strip zinc-coated flat steel sheet 5, a coupling flange 3, the side of another described coupling flange 3.
Specific embodiment two: middle-and-high voltage system (＞500Pa) and long limit＞1000mm or low service system (≤500Pa) and the thin steel plate connected flange rectangular air duct of long limit＞1500mm when connecting, corresponding coupling flange 3 sides in the long limit of rectangular air duct 1 assemble according to Fig. 3 structure, corresponding coupling flange 3 sides of the minor face of rectangular air duct 1 assemble according to Fig. 4 structure, the outside that is the corresponding coupling flange 3 in long limit of rectangular air duct 1 is embedded with long strip zinc-coated flat steel sheet 5, and self threading pin 9 is fastenedly connected long strip zinc-coated flat steel sheet 5, the side on the long limit of a coupling flange 3, rubber closed pore sponge mat 2, the side on the long limit of another coupling flange 3; Self threading pin 9 is fastenedly connected side, the rubber closed pore sponge mat 2 of coupling flange 3 minor faces, the side of another coupling flange 3 minor faces.
Specific embodiment three: low service system (≤500Pa) and the thin steel plate connected flange rectangular air duct of the long limit≤1500mm of rectangular air duct when connecting, the corresponding coupling flange side of the long limit of rectangular air duct 1 and minor face all assembles according to Fig. 4 structure, and namely self threading pin 9 is fastenedly connected side, the rubber closed pore sponge mat 2 of a coupling flange 3, the side of another coupling flange 3.
Be provided with circular hole on the corresponding position of corresponding two coupling flanges 3 arranging, structure with slotted hole long strip zinc-coated flat steel sheet 5 is seen Fig. 5, its spacing and aperture punching by code requirement has slotted hole 7, and the length and width of long strip zinc-coated flat steel sheet 5, thick size are made according to the dimensioned of coupling flange 3.
The linkage structure of galvanized bolt 4, long strip zinc-coated flat steel sheet 5, coupling flange 3, rubber closed pore sponge mat 2, nut 6 is seen Fig. 1: the outside of a coupling flange 3 is embedded with long strip zinc-coated flat steel sheet 5, galvanized bolt 4 is set with nut 6 after running through successively the circular hole of circular hole, rubber closed pore sponge mat 2, another coupling flange 3 of slotted hole 7 on the long strip zinc-coated flat steel sheet 5, one of them coupling flange 3, and nut 6 is anchored on the outside end face of another coupling flange 3; Between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed.
The linkage structure of galvanized bolt 4, coupling flange 3, rubber closed pore sponge mat 2, nut 6 is seen Fig. 2: galvanized bolt 4 is set with nut 6 after running through successively the circular hole of circular hole, rubber closed pore sponge mat 2, another coupling flange 3 of a coupling flange 3, nut 6 is anchored on the outside end face of another coupling flange 3, between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed.
Specific embodiment four: middle-and-high voltage system (＞500Pa) each length of side all＞when the thin steel plate connected flange rectangular air duct of 1000mm connects, the long limit of rectangular air duct 1, corresponding coupling flange 3 sides of minor face all assemble according to Fig. 1 structure, namely be embedded with long strip zinc-coated flat steel sheet 5 around the outside of a coupling flange 3, galvanized bolt 4 runs through the slotted hole 7 on the long strip zinc-coated flat steel sheet 5 successively, the circular hole of one of them coupling flange 3, rubber closed pore sponge mat 2, be set with nut 6 behind the circular hole of another coupling flange 3, nut 6 is anchored on the outside end face of another coupling flange 3; Between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed.
Specific embodiment five: middle-and-high voltage system (＞500Pa) and long limit＞1000mm or low service system (≤500Pa) and the thin steel plate connected flange rectangular air duct of long limit＞1500mm when connecting, corresponding coupling flange 3 sides in the long limit of rectangular air duct 1 assemble according to Fig. 1 structure, corresponding coupling flange 3 sides of the minor face of rectangular air duct 1 assemble according to Fig. 2 structure, the outside that is the corresponding coupling flange 3 in long limit of rectangular air duct 1 is embedded with long strip zinc-coated flat steel sheet 5, galvanized bolt 4 runs through the slotted hole 7 on the long strip zinc-coated flat steel sheet 5 successively, the circular hole of one of them coupling flange 3, rubber closed pore sponge mat 2, be set with nut 6 behind the circular hole of another coupling flange 3, nut 6 is anchored on the outside end face of another coupling flange 3; Between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed; Galvanized bolt 4 is set with nut 6 after running through successively the circular hole of circular hole, rubber closed pore sponge mat 2, another coupling flange 3 of the corresponding coupling flange 3 of minor face of rectangular air duct 1, nut 6 is anchored on the outside end face of another coupling flange 3, between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed.
Specific embodiment six: low service system (≤500Pa) and the thin steel plate connected flange rectangular air duct of the long limit≤1500mm of rectangular air duct when connecting, the corresponding coupling flange side of the long limit of rectangular air duct 1 and minor face all assembles according to Fig. 2 structure, be to be set with nut 6 after galvanized bolt 4 runs through the circular hole of circular hole around the coupling flange 3, rubber closed pore sponge mat 2, another coupling flange 3 successively, nut 6 is anchored on the outside end face of another coupling flange 3, between the outside end face of nut 6 and another coupling flange 3 packing ring 8 is housed.
Claims (10)
1. the linkage structure of a thin steel plate connected flange rectangular air duct, it comprises rectangular air duct, the coupling flange of described rectangular air duct is corresponding the layout one by one, it is characterized in that: plug is equipped with rubber closed pore sponge mat between corresponding two described coupling flange inboards arranging, the outside on the long limit of a described coupling flange is embedded with the long strip metal bar, described long strip metal bar, long strip metal bar side, rubber closed pore sponge mat, another the described coupling flange on long limit of the corresponding described coupling flange side of growing the limit be fastenedly connected; The side three of the minor face of the side of the minor face of a described coupling flange, rubber closed pore sponge mat, another described coupling flange is fastenedly connected.
2. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 1, it is characterized in that: the outside of the minor face of a described coupling flange is embedded with the long strip metal bar, described long strip metal bar, long strip metal bar side, rubber closed pore sponge mat, the side of another described coupling flange minor face of minor face of a corresponding described coupling flange be fastenedly connected.
3. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 1, it is characterized in that: the system pressure of described rectangular air duct is during for≤the low service system of 500Pa and the long limit of rectangular air duct≤1500mm, and the side three all around of the side around the described coupling flange, rubber closed pore sponge mat, another described coupling flange is fastenedly connected.
4. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 1 and 2 is characterized in that: described long strip metal bar is specially long strip zinc-coated flat steel sheet/or zinc-plated pressed steel plate of long strip.
5. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 1 and 2 is characterized in that: self threading pin is fastenedly connected side, the rubber closed pore sponge mat of long strip metal bar, a described coupling flange, the side of another described coupling flange.
6. it is characterized in that according to claim 1 or the linkage structure of 3 described a kind of thin steel plate connected flange rectangular air ducts: self threading pin is fastenedly connected side, the rubber closed pore sponge mat of a described coupling flange, the side of another described coupling flange.
7. the linkage structure of the described a kind of thin steel plate connected flange rectangular air duct of arbitrary claim in 3 according to claim 1 is characterized in that: be provided with circular hole on the corresponding position of corresponding two described coupling flanges arranging.
8. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 7, it is characterized in that: be provided with positioning hole on the described long strip metal bar, galvanized bolt is set with nut after running through successively the circular hole of circular hole, rubber closed pore sponge mat, another described coupling flange of positioning hole on the described long strip metal bar, one of them described coupling flange, and described fastening nuts is in the outside of another described coupling flange end face.
9. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 8 is characterized in that: described positioning hole is specially slotted hole/or circular hole.
10. the linkage structure of a kind of thin steel plate connected flange rectangular air duct according to claim 7, it is characterized in that: galvanized bolt is set with nut after running through successively the circular hole of circular hole, rubber closed pore sponge mat, another described coupling flange of one of them described coupling flange, and described fastening nuts is in the outside of another described coupling flange end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382031 CN202719305U (en) | 2012-08-03 | 2012-08-03 | Connection structure of sheet steel coupling flange rectangular air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382031 CN202719305U (en) | 2012-08-03 | 2012-08-03 | Connection structure of sheet steel coupling flange rectangular air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719305U true CN202719305U (en) | 2013-02-06 |
Family
ID=47621129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382031 Withdrawn - After Issue CN202719305U (en) | 2012-08-03 | 2012-08-03 | Connection structure of sheet steel coupling flange rectangular air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719305U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788205A (en) * | 2012-08-03 | 2012-11-21 | 中国电子系统工程第二建设有限公司 | Connecting structure for sheet steel coupling flange rectangular air ducts |
| CN104110530A (en) * | 2013-04-22 | 2014-10-22 | 浙江盾安机电科技有限公司 | Heat-insulating sealing device and air conditioner |
| CN105782605A (en) * | 2016-05-12 | 2016-07-20 | 陕西建工安装集团有限公司 | Pressure resisting type air pipe air leakage preventing structure of ventilation air conditioner system and air pipe joint machining method |
| CN117905969A (en) * | 2024-01-25 | 2024-04-19 | 广州市机电安装有限公司 | Construction method for sealing connection of stainless steel air pipes |
-
2012
- 2012-08-03 CN CN 201220382031 patent/CN202719305U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788205A (en) * | 2012-08-03 | 2012-11-21 | 中国电子系统工程第二建设有限公司 | Connecting structure for sheet steel coupling flange rectangular air ducts |
| CN102788205B (en) * | 2012-08-03 | 2014-06-11 | 中国电子系统工程第二建设有限公司 | Connecting structure for sheet steel coupling flange rectangular air ducts |
| CN104110530A (en) * | 2013-04-22 | 2014-10-22 | 浙江盾安机电科技有限公司 | Heat-insulating sealing device and air conditioner |
| CN105782605A (en) * | 2016-05-12 | 2016-07-20 | 陕西建工安装集团有限公司 | Pressure resisting type air pipe air leakage preventing structure of ventilation air conditioner system and air pipe joint machining method |
| CN117905969A (en) * | 2024-01-25 | 2024-04-19 | 广州市机电安装有限公司 | Construction method for sealing connection of stainless steel air pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130206 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |