CN110848947A - Air pipe flange connecting device - Google Patents
Air pipe flange connecting device Download PDFInfo
- Publication number
- CN110848947A CN110848947A CN201911182120.7A CN201911182120A CN110848947A CN 110848947 A CN110848947 A CN 110848947A CN 201911182120 A CN201911182120 A CN 201911182120A CN 110848947 A CN110848947 A CN 110848947A
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- CN
- China
- Prior art keywords
- flange
- draw
- groove
- shaped steel
- air pipe
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention provides an air pipe flange connecting device which comprises an air pipe body, wherein one side of the air pipe body along the length direction is provided with a plurality of first flanges and second flanges, the first flanges and the second flanges are oppositely arranged, the first flanges are provided with first clamping grooves, the second flanges are provided with second clamping grooves, the first clamping grooves and the second clamping grooves are oppositely arranged, one side of the air pipe body is also provided with a fastening body, and the fastening body is connected with the first flanges and the second flanges through the first clamping grooves and the second clamping grooves.
Description
Technical Field
The invention relates to the technical field of ventilation air conditioners and civil engineering smoke prevention and exhaust air pipes, in particular to an air pipe flange connecting device.
Background
The thin steel plate air pipe flange connecting device is widely adopted in ventilation, smoke prevention and exhaust and air conditioning systems, 400-600 mm of operation space is required around the thin steel plate air pipe flange connecting device and other air pipes for connection, and connecting pieces such as flange bolts, spring clamps, jackscrew clamps and the like are mounted. In 2018, the 'building smoke prevention and exhaust technical standard' GB51251-2017 standard is implemented, and the smoke prevention and exhaust air pipe is required to be installed in a civil construction shaft, the civil construction shaft is usually composed of one or two shear walls, sometimes two or even three shear walls are provided, and an operation space for installing a flange connecting piece is not provided; on the other hand, the smoke-proof and smoke-discharging air pipe has fire-resistant requirements, and after the spring clamp and the jackscrew clamp are connected by flanges, the elasticity is weakened, so that the sealing performance of the pipeline is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a wind pipe flange connecting device.
The object of the invention is achieved in the following way:
the utility model provides an air pipe flange joint device, includes the tuber pipe body, and the tuber pipe body is equipped with a plurality of first flanges and second flange along length direction's one side, first flange and second flange set up relatively, are equipped with first draw-in groove on first flange, are equipped with the second draw-in groove on the second flange, first draw-in groove and second draw-in groove set up relatively, also are equipped with the fastening body in tuber pipe body one side, the fastening body passes through first draw-in groove and second draw-in groove and first flange and second flange joint.
The fastening body is hollow C shaped steel, is equipped with the bayonet socket in C shaped steel one side, forms confined cavity in the C shaped steel, C shaped steel along tuber pipe body length direction and first flange and second flange joint.
The first flange and the second flange are identical in structure, cavities are formed in the first flange and the second flange, and slurry holes communicated with the cavities of the C-shaped steel are formed in the first flange and the second flange.
And injecting expansion cement into the fastening body, the first flange and the second flange.
The first flange and the second flange are both thin steel plate flanges with elasticity.
Compared with the prior art, the invention can be connected with the fastening piece through the first flange and the second flange in a pulling and inserting way, thereby greatly reducing the operation space for installing the air pipe.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The air pipe comprises an air pipe body 1, a first flange 2, a second flange 3, C-shaped steel 4, expansion cement 5, a first clamping groove 6 and a second clamping groove 7.
Detailed Description
As shown in the attached figure 1, the air pipe flange connecting device comprises an air pipe body 1 and is characterized in that: one side of tuber pipe body 1 along length direction is equipped with a plurality of first flanges 2 and second flange 3, first flange 2 and second flange 3 set up relatively, are equipped with first draw-in groove 6 on first flange 2, and 3 are equipped with second draw-in groove 7 on the second flange, first draw-in groove 6 and second draw-in groove 7 set up relatively, also are equipped with the fastening body in 1 one side of tuber pipe body, the fastening body is connected with first flange 2 and second flange 3 through first draw-in groove 6 and second draw-in groove 7.
The fastening body is hollow C shaped steel 4, is equipped with the bayonet socket in C shaped steel 4 one side, forms confined cavity in C shaped steel 4, 1 length direction and first flange 2 and the 3 joint of second flange of air pipe body are followed to C shaped steel 4.
First flange 2 is the same with the 3 structures of second flange, and first flange 2 all is equipped with the cavity with the inside of second flange 3, be equipped with the mud hole with C shaped steel 4 cavity intercommunication on first flange 2 and the second flange 3, evenly arrange the mud hole with C shaped steel 4 cavity intercommunication on first flange 2 and the second flange 3, all communicate with C shaped steel 4 cavity at first flange 2 and the 3 cavities of second flange, and mud pours into and forms complete fire prevention seal.
And injecting expansion cement 5 into cavities of the C-shaped steel 4 fastening body, the first flange 2 and the second flange 3.
First flange 2 and second flange 3 are the sheet steel flange that has elasticity, and the slide that has elastic construction that the sheet steel flange processed has certain elasticity, can step up first flange 2 and the second flange 3 that need connect, make C shaped steel 4 get into first draw-in groove 6 and second draw-in groove 7 smoothly again, and pull formula access connection can adopt 2~3 bolt fastening before the connection, produces the aversion when preventing the tuber pipe of connecting from inserting C shaped steel 4.
The working principle of the invention is as follows: the first flange 2 and the second flange 3 are connected with the C-shaped steel 4 in a pulling and inserting mode to complete air pipe system connection, and therefore the operation space for installing an air pipe is greatly reduced; air duct system is tight and fire prevention for a long time more as required, at C shaped steel 4, inject 5 thick liquids of inflation cement in the cavity of first flange 2 and second flange 3, it can not influence meshing and sealed between first flange 2 and second flange 3 to be heated after injecting 5 thick liquids of inflation cement, inflation cement 5 makes the whole atress of C shaped steel 4, increase the engaging force between tuber pipe flange joint device, 5 thick liquids of inflation cement center on the sealing washer, form two layers sealed, the tuber pipe is heated, reduce the flange, reinforcing tuber pipe fire-resistant degree, the slip casting gets into first flange 2 and second flange 3, the tuber pipe, when first flange 2 and second flange 3 are heated, do not reduce the meshing of first flange 2 and second flange 3 and tuber pipe.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides an tuber pipe flange joint device, includes the tuber pipe body, its characterized in that: one side of tuber pipe body along length direction is equipped with a plurality of first flanges and second flange, first flange and second flange set up relatively, are equipped with first draw-in groove on first flange, are equipped with the second draw-in groove on the second flange, first draw-in groove and second draw-in groove set up relatively, also are equipped with the fastening body in tuber pipe body one side, the fastening body is through first draw-in groove and second draw-in groove and first flange and second flange joint.
2. A ductwork flange attachment according to claim 1 wherein: the fastening body is hollow C shaped steel, is equipped with the bayonet socket in C shaped steel one side, forms confined cavity in the C shaped steel, C shaped steel along tuber pipe body length direction and first flange and second flange joint.
3. A ductwork flange attachment according to claim 2 wherein: the first flange and the second flange are identical in structure, cavities are formed in the first flange and the second flange, and slurry holes communicated with the cavities of the C-shaped steel are formed in the first flange and the second flange.
4. A ductwork flange attachment according to claim 3 wherein: and injecting expansion cement into the fastening body, the first flange and the second flange.
5. A ductwork flange attachment according to claim 1 wherein: the first flange and the second flange are both thin steel plate flanges with elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182120.7A CN110848947A (en) | 2019-11-27 | 2019-11-27 | Air pipe flange connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182120.7A CN110848947A (en) | 2019-11-27 | 2019-11-27 | Air pipe flange connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110848947A true CN110848947A (en) | 2020-02-28 |
Family
ID=69605438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911182120.7A Pending CN110848947A (en) | 2019-11-27 | 2019-11-27 | Air pipe flange connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110848947A (en) |
-
2019
- 2019-11-27 CN CN201911182120.7A patent/CN110848947A/en active Pending
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |