CN102788205B - Connecting structure for sheet steel coupling flange rectangular air ducts - Google Patents
Connecting structure for sheet steel coupling flange rectangular air ducts Download PDFInfo
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- CN102788205B CN102788205B CN201210274608.4A CN201210274608A CN102788205B CN 102788205 B CN102788205 B CN 102788205B CN 201210274608 A CN201210274608 A CN 201210274608A CN 102788205 B CN102788205 B CN 102788205B
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Abstract
The invention provides a connecting structure for sheet steel coupling flange rectangular air ducts. By adopting the connecting structure, the strength of the joint of the air ducts is enhanced, the leakproofness of a whole air duct system is improved, the air leakage rate of the system is reduced, and moreover, the installation cost of construction is reduced. Meanwhile, an external thermal insulation effect at the joint of the air ducts is improved, and the thermal insulation property is improved. The connecting structure comprises the rectangular air ducts, and coupling flanges of the rectangular air ducts are arranged correspondingly one to one. The connecting structure is characterized in that a rubber sealed cell sponge mat is stuffed between the inner sides of the two coupling flanges correspondingly arranged; an elongated metal strip is embedded at the outer side of the long edge of one of the two coupling flanges; the elongated metal strip, the side edge of the long edge of the coupling flange which corresponds to the elongated metal strip, the rubber sealed cell sponge mat and the side edge of the long edge of the other coupling flange are connected in the manner of fastening; and the side edge of the short edge of one coupling flange, the rubber sealed cell sponge mat and the side edge of the short edge of the other coupling flange are connected in the manner of fastening.
Description
Technical field
The present invention relates to the technical field of air conditioner and smoke control system engineering, be specially the linkage structure of thin steel plate connected flange rectangular air duct.
Background technique
The existing rectangular air duct linkage structure form take sheet metal as material mainly contains that angle steel flange bolt connects, thin steel plate connected flange spring clip or jackscrew link and connect, the cutting of S shape connects, the cutting of C shape connects, vertical associating dihedral cutting connection; There is following shortcoming in above-mentioned Connecting format: angle steel flange manufacturing procedure complexity, large by material amount, fabricating cost is high, efficiency is low, between airduct and angle steel flange, need to adopt rivet to be connected and rivet place needs sealant sealing, therefore the inner flatness of airduct, cleanliness are poor;
And although thin steel plate connected flange airduct has advantages of that internal surface is smooth, cleanliness good, it is high that but airduct connects spring clip or the jackscrew card cost of use, 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 when operation can cause that airduct joint is loosening leaks out, and it is poor that the structure of jackscrew card causes the outer heat insulation effect of airduct joint in addition; The cutting of S shape connects, the cutting of C shape connects, and the Connecting format of vertical associating dihedral cutting is only applicable to low service system airduct, and the long limit size of airduct is had to strict demand, has significant limitation.
Summary of the invention
For the problems referred to above, the invention provides the linkage structure of thin steel plate connected flange rectangular air duct, its strengthened airduct joint intensity, improved the leakproofness of whole air-line system, reduced system air leakage amount; And reduce construction and installation cost, improved the outer heat insulation effect of airduct joint simultaneously, improved thermal insulation property.
The 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 layout one by one, it is characterized in that: between the described coupling flange of corresponding two of arranging inner side, plug is equipped with rubber closed pore sponge mat, the outside on the long limit of a described coupling flange is embedded with the first long strip metal bar, described the first long strip metal bar, the first long strip metal bar the side on long limit of a corresponding described coupling flange, rubber closed pore sponge mat, described in another, the side on the long limit of coupling flange is fastenedly connected, side, the rubber closed pore sponge mat of the minor face of a described coupling flange, described in another, the side three of the minor face of 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 second long strip metal bar, described the second long strip metal bar, the second long strip metal bar a corresponding described coupling flange minor face side, rubber closed pore sponge mat, described in another, the side of coupling flange minor face is fastenedly connected;
The system pressure of described rectangular air duct is≤when the low service system of 500Pa and the long limit≤1500mm of rectangular air duct, side, the rubber closed pore sponge mat of the surrounding of a described coupling flange, described in another, the side three of the surrounding of coupling flange is fastenedly connected;
Described the first long strip metal bar, the second long strip metal bar are specially long strip zinc-coated flat steel sheet/or zinc-plated pressed steel plate of long strip;
Self threading pin is fastenedly connected the side, rubber closed pore sponge mat of the first long strip metal bar or the second long strip metal bar, a described coupling flange, the side of coupling flange described in another;
Self threading pin is fastenedly connected the side, rubber closed pore sponge mat of a described coupling flange, the side of coupling flange described in another;
On the corresponding position of corresponding two described coupling flanges arranging, be provided with circular hole;
On described the first long strip metal bar, the second long strip metal bar, be provided with positioning hole, galvanized bolt runs through positioning hole on described the first long strip metal bar or the second long strip metal bar successively, described in one of them coupling flange circular hole, rubber closed pore sponge mat, described in another, after the circular hole of coupling flange, be set with nut, described fastening nuts is in the outside of coupling flange described in another end face;
Described positioning hole is specially slotted hole/or circular hole;
Galvanized bolt runs through the circular hole, rubber closed pore sponge mat of coupling flange described in one of them successively, described in another, after the circular hole of coupling flange, be set with nut, and described fastening nuts is in the outside of coupling flange described in another end face.
?adopt after said structure of the present invention, can significantly improve the intensity of thin steel plate connected flange rectangular air duct joint, rigidity, vibrations when anti-locking system operation cause the loosening air leakage phenomena of joint, guarantee the leakproofness of system, while particularly connection for the thin steel plate connected flange rectangular air duct of middle-and-high voltage system (> 500Pa) and the equal > 1000mm of each length of side, be embedded with long strip metal bar by the outside of the corresponding described coupling flange in long limit at rectangular air duct and more strengthened the intensity of airduct joint, improve the leakproofness of whole air-line system, significantly reduce system air leakage amount, energy saving, abandon in addition jackscrew card and both reduced construction and installation cost, improved the outer heat insulation effect of airduct joint simultaneously, improved thermal insulation property.
Accompanying drawing explanation
Fig. 1 is the linkage structure schematic diagram of galvanized bolt of the present invention, long strip zinc-coated flat steel sheet, coupling flange, rubber closed pore sponge mat, nut;
Fig. 2 is the linkage structure schematic diagram of galvanized bolt of the present invention, coupling flange, rubber closed pore sponge mat, nut;
Fig. 3 is the linkage structure schematic diagram of self threading pin of the present invention, long strip zinc-coated flat steel sheet, coupling flange, rubber closed pore sponge mat;
Fig. 4 is the linkage structure schematic diagram of self threading pin of the present invention, 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 invention;
Fig. 6 is the not long strip zinc-coated flat steel sheet structural representation with positioning hole of the present invention.
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 layout one by one, and between corresponding two coupling flange 3 inner sides arranging, plug is equipped with rubber closed pore sponge mat 2.
The structure of the long strip zinc-coated flat steel sheet 5 with positioning hole is not shown in Fig. 6; 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 shown in Fig. 3, and self threading pin 9 is fastenedly connected the side, rubber closed pore sponge mat 2 of long strip zinc-coated flat steel sheet 5, a coupling flange 3, the side of coupling flange 3 described in another.
The linkage structure of self threading pin 9, coupling flange 3, rubber closed pore sponge mat 2, nut 6 is shown in 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: when the thin steel plate connected flange rectangular air duct of the equal > 1000mm of middle-and-high voltage system (> 500Pa) each length of side connects, the long limit of rectangular air duct 1, corresponding coupling flange 3 sides of minor face all assemble according to Fig. 3 structure, the outside surrounding of a coupling flange 3 is embedded with long strip zinc-coated flat steel sheet 5, and self threading pin 9 is fastenedly connected the side, rubber closed pore sponge mat 2 of long strip zinc-coated flat steel sheet 5, a coupling flange 3, the side of coupling flange 3 described in another.
Specific embodiment two: when the thin steel plate connected flange rectangular air duct of middle-and-high voltage system (> 500Pa) and long limit > 1000mm or low service system (≤500Pa) and long limit > 1500mm connects, corresponding coupling flange 3 sides in long limit of rectangular air duct 1 assemble according to Fig. 3 structure, corresponding coupling flange 3 sides of 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, 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: when the thin steel plate connected flange rectangular air duct of the long limit≤1500mm of low service system (≤500Pa) and rectangular air duct connects, 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 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.
On the corresponding position of corresponding two coupling flanges 3 arranging, be provided with circular hole, structure with slotted hole long strip zinc-coated flat steel sheet 5 is shown in Fig. 5, it has slotted hole 7 by the spacing of code requirement and aperture punching, and length and width, the thick size of long strip zinc-coated flat steel sheet 5 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 shown in 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 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 shown in 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 nut 6 and the outside end face of another coupling flange 3, packing ring 8 is housed.
Specific embodiment four: when the thin steel plate connected flange rectangular air duct of the equal > 1000mm of middle-and-high voltage system (> 500Pa) each length of side connects, the long limit of rectangular air duct 1, corresponding coupling flange 3 sides of minor face all assemble according to Fig. 1 structure, the outside surrounding of a coupling flange 3 is embedded with long strip zinc-coated flat steel sheet 5, galvanized bolt 4 runs through the slotted hole 7 on 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, after the circular hole of another coupling flange 3, be set with nut 6, 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: when the thin steel plate connected flange rectangular air duct of middle-and-high voltage system (> 500Pa) and long limit > 1000mm or low service system (≤500Pa) and long limit > 1500mm connects, corresponding coupling flange 3 sides in long limit of rectangular air duct 1 assemble according to Fig. 1 structure, corresponding coupling flange 3 sides of 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 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, after the circular hole of another coupling flange 3, be set with nut 6, 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 nut 6 and the outside end face of another coupling flange 3, packing ring 8 is housed.
Specific embodiment six: when the thin steel plate connected flange rectangular air duct of the long limit≤1500mm of low service system (≤500Pa) and rectangular air duct connects, 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 the circular hole of galvanized bolt 4 circular hole that runs through successively coupling flange 3 surroundings, rubber closed pore sponge mat 2, another coupling flange 3, nut 6 is anchored on the outside end face of another coupling flange 3, between nut 6 and the outside end face of another coupling flange 3, packing ring 8 is housed.
Claims (10)
1. the linkage structure of thin steel plate connected flange rectangular air duct, it comprises rectangular air duct, the coupling flange of described rectangular air duct is corresponding layout one by one, it is characterized in that: between the described coupling flange of corresponding two of arranging inner side, plug is equipped with rubber closed pore sponge mat, the outside on the long limit of a described coupling flange is embedded with the first long strip metal bar, described the first long strip metal bar, the first long strip metal bar side, rubber closed pore sponge mat, the side that described in another, coupling flange is grown limit on long limit of a corresponding described coupling flange be fastenedly connected; Side, the rubber closed pore sponge mat of the minor face of a described coupling flange, described in another, the side three of the minor face of coupling flange is fastenedly connected.
2. the linkage structure 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 second long strip metal bar, described the second long strip metal bar, the second long strip metal bar a corresponding described coupling flange minor face side, rubber closed pore sponge mat, described in another, the side of coupling flange minor face is fastenedly connected.
3. the linkage structure 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≤when the low service system of 500Pa and the long limit≤1500mm of rectangular air duct, side, the rubber closed pore sponge mat of the surrounding of a described coupling flange, described in another, the side three of the surrounding of coupling flange is fastenedly connected.
4. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 2, it is characterized in that: described the first long strip metal bar is specially long strip zinc-coated flat steel sheet or the zinc-plated pressed steel plate of long strip, described the second long strip metal bar is specially long strip zinc-coated flat steel sheet or the zinc-plated pressed steel plate of long strip.
5. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 2, is characterized in that: side, the rubber closed pore sponge mat of the first long strip metal bar, a described coupling flange, described in another, the side of coupling flange is fastenedly connected by self threading pin; Side, the rubber closed pore sponge mat of the second long strip metal bar, a described coupling flange, described in another, the side of coupling flange is fastenedly connected by self threading pin.
6. according to the linkage structure of the thin steel plate connected flange rectangular air duct described in claim 1 or 3, it is characterized in that: side, the rubber closed pore sponge mat of a described coupling flange, described in another, the side three of coupling flange is fastenedly connected by self threading pin.
7. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 2, is characterized in that: on the corresponding position of corresponding two described coupling flanges arranging, be provided with circular hole.
8. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 7, it is characterized in that: on described the first long strip metal bar and the second long strip metal bar, be respectively arranged with positioning hole, galvanized bolt runs through the positioning hole of described the first long strip metal bar successively, the circular hole of coupling flange described in one of them, rubber closed pore sponge mat, described in another, after the circular hole of coupling flange, be set with nut, galvanized bolt runs through the positioning hole on described the second long strip metal bar successively, the circular hole of coupling flange described in one of them, rubber closed pore sponge mat, described in another, after the circular hole of coupling flange, be set with nut, described fastening nuts is in the outside of coupling flange described in another end face.
9. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 8, is characterized in that: described positioning hole is specially slotted hole.
10. the linkage structure of thin steel plate connected flange rectangular air duct according to claim 7, it is characterized in that: galvanized bolt runs through the circular hole, rubber closed pore sponge mat of coupling flange described in one of them successively, described in another, after the circular hole of coupling flange, be set with nut, and described fastening nuts is in the outside of coupling flange described in another end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274608.4A CN102788205B (en) | 2012-08-03 | 2012-08-03 | Connecting structure for sheet steel coupling flange rectangular air ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274608.4A CN102788205B (en) | 2012-08-03 | 2012-08-03 | Connecting structure for sheet steel coupling flange rectangular air ducts |
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| Publication Number | Publication Date |
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| CN102788205A CN102788205A (en) | 2012-11-21 |
| CN102788205B true CN102788205B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210274608.4A Active CN102788205B (en) | 2012-08-03 | 2012-08-03 | Connecting structure for sheet steel coupling flange rectangular air ducts |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926733Y (en) * | 2006-06-22 | 2007-07-25 | 上海海事大学 | Fast air-duct connector |
| CN201401580Y (en) * | 2009-03-27 | 2010-02-10 | 梁宜松 | Connecting device of ventilation pipelines |
| CN201723878U (en) * | 2010-06-28 | 2011-01-26 | 陕西建工集团设备安装工程有限公司 | Thin steel plate connected flange for rectangular air pipe |
| CN202719305U (en) * | 2012-08-03 | 2013-02-06 | 中国电子系统工程第二建设有限公司 | Connection structure of sheet steel coupling flange rectangular air duct |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005133814A (en) * | 2003-10-30 | 2005-05-26 | Fuso Gijutsu Kenkyusho:Kk | Method for reinforcing junction part of fcd valve to single flange pipe |
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2012
- 2012-08-03 CN CN201210274608.4A patent/CN102788205B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926733Y (en) * | 2006-06-22 | 2007-07-25 | 上海海事大学 | Fast air-duct connector |
| CN201401580Y (en) * | 2009-03-27 | 2010-02-10 | 梁宜松 | Connecting device of ventilation pipelines |
| CN201723878U (en) * | 2010-06-28 | 2011-01-26 | 陕西建工集团设备安装工程有限公司 | Thin steel plate connected flange for rectangular air pipe |
| CN202719305U (en) * | 2012-08-03 | 2013-02-06 | 中国电子系统工程第二建设有限公司 | Connection structure of sheet steel coupling flange rectangular air duct |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-133814A 2005.05.26 |
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| CN102788205A (en) | 2012-11-21 |
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