CN211650666U

CN211650666U - Air pipe flange connecting device

Info

Publication number: CN211650666U
Application number: CN201922074404.6U
Authority: CN
Inventors: 王其庆; 许健; 张学雷; 高文龙
Original assignee: Architectural Design And Research Institute Of Henan Province Co ltd
Current assignee: Architectural Design And Research Institute Of Henan Province Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-10-09
Anticipated expiration: 2029-11-27

Abstract

The utility model provides an air pipe flange joint device, including the tuber pipe body, 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 is through first draw-in groove and second draw-in groove and first flange and second flange joint, the utility model discloses can draw out with the fastener through first flange and second flange and insert and be connected, very big reduction installation tuber pipe's operation space, the utility model discloses novel structure, easy operation, the usage is extensive, very easily promotes.

Description

Air pipe flange connecting device

Technical Field

The utility model relates to a ventilation air conditioner and civil engineering smoke protection tuber pipe technical field that discharges fume, concretely relates to tuber pipe flange joint 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.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, the utility model provides an air pipe flange connecting device.

The purpose of the utility model is realized with the following mode:

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 utility model discloses can take out with the fastener through first flange and second flange and insert and be connected, very big operating space who reduces the installation tuber pipe, the utility model discloses novel structure, easy operation, the usage is extensive, very easily promotes.

Drawings

Fig. 1 is a schematic structural diagram 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 utility model 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.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

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.