阅读说明：本技术 一种风管连接装置及风管系统 (Air pipe connecting device and air pipe system ) 是由 刘振 龚丹妮 金春毅 张园 武添一 马曙光 孔维文 袁洪涛 于 2021-07-21 设计创作，主要内容包括：本发明公开了一种风管连接装置及风管系统,风管连接装置包括两个法兰和若干个紧固件,法兰包括连接板和第一翻边,连接板为环状,第一翻边的一端固定于连接板的外圈,另一端向连接板的一侧延伸；两个法兰的连接板对称设置,且两个法兰的第一翻边向相反的方向延伸；紧固件具有第一卡爪和第二卡爪,第一卡爪和所述第二卡爪固定连接,第一卡爪卡紧一个法兰的第一翻边,第二卡爪卡紧另一个法兰的第一翻边,并使两个法兰的连接板压紧。本发明采用了紧固件卡接法兰的方式,提高了安装的效率。(The invention discloses an air pipe connecting device and an air pipe system, wherein the air pipe connecting device comprises two flanges and a plurality of fasteners, each flange comprises a connecting plate and a first flanging, each connecting plate is annular, one end of each first flanging is fixed on the outer ring of each connecting plate, and the other end of each first flanging extends towards one side of each connecting plate; the connecting plates of the two flanges are symmetrically arranged, and the first flanges of the two flanges extend in opposite directions; the fastener is provided with a first clamping jaw and a second clamping jaw, the first clamping jaw is fixedly connected with the second clamping jaw, the first clamping jaw clamps the first flanging of one flange, the second clamping jaw clamps the first flanging of the other flange, and the connecting plates of the two flanges are tightly pressed. The invention adopts the mode that the fastening piece is clamped with the flange, thereby improving the installation efficiency.)

1. A wind pipe connecting device is characterized in that,

comprises two flanges and a plurality of fasteners,

the flange comprises a connecting plate and a first flanging, the connecting plate is annular, one end of the first flanging is fixed on the outer ring of the connecting plate, and the other end of the first flanging extends towards one side of the connecting plate; the connecting plates of the two flanges are symmetrically arranged, and the first flanges of the two flanges extend in opposite directions;

the fastener is provided with a first clamping jaw and a second clamping jaw, the first clamping jaw is fixedly connected with the second clamping jaw, the first clamping jaw clamps a first flanging of one flange, the second clamping jaw clamps a first flanging of the other flange, and connecting plates of the two flanges are tightly pressed.

2. An air hose coupling according to claim 1 further comprising an annular gasket, wherein both of said webs are sealed by said gasket.

3. The air hose coupling according to claim 2 wherein the gasket is a rubber gasket.

4. The air hose connector according to claim 1, further comprising a bolt, wherein the connecting plate has a threaded hole between two adjacent first flanges, and the bolt is in threaded connection with the corresponding threaded hole on the two connecting plates.

5. An air hose coupling according to claim 4 wherein said web is a square ring and said threaded holes are located at corners of said web.

6. The air duct connecting device according to claim 1, wherein the other end of the first flange has a round-corner protrusion, the pawl includes a slot, a fastening surface of the slot is attached to a mating surface of the round-corner protrusion, and both the fastening surface of the slot and the mating surface of the round-corner protrusion are curved surfaces.

7. The air hose coupling according to claim 6, wherein the latch further comprises a connecting portion, the engaging slot is fixedly connected to the connecting portion at a first angle, the first flange is plate-shaped, and the first flange is perpendicular to the connecting plate.

8. The air hose connection according to claim 6 or 7, wherein the flange further comprises a second flange, one end of the second flange is fixed to the connecting plate, and the second flange and the first flange extend in the same direction.

9. The air hose connector according to claim 6 or 7, wherein the first flanges are circumferentially spaced apart from each other along the web, the fastening members are circumferentially spaced apart from each other along the web, and the distance between two adjacent fastening members is 150mm-300 mm.

10. An air duct system comprises an air duct connecting device and is characterized in that,

the air pipe connecting device comprises two flanges and a plurality of fasteners,

the flange comprises a connecting plate and a first flanging, the connecting plate is annular, one end of the first flanging is fixed on the outer ring of the connecting plate, and the other end of the first flanging extends towards one side of the connecting plate; the connecting plates of the two flanges are symmetrically arranged, and the first flanges of the two flanges extend in opposite directions;

the fastening piece is provided with a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are fixedly connected, the first clamping jaw clamps the first flanging of one flange, the second clamping jaw clamps the first flanging of the other flange, and connecting plates of the two flanges are tightly pressed;

the air pipe system further comprises a plurality of air pipes, and the adjacent air pipes are connected through the air pipe connecting device, wherein one air pipe is fixedly connected with one flange, and the other air pipe is fixedly connected with the other flange.

11. The air duct system of claim 10, wherein the air duct and the connector panel are each square, and wherein the corners of the air duct correspond to the locations of the corners of the connector panel.

Technical Field

The invention relates to an air pipe connecting device and an air pipe system.

Background

The flange connection is an important connection mode in pipeline construction due to the convenience in disassembly, high strength and good sealing performance. At present, the flange connection mainly adopts bolt connection, although the connection is firm, the precision requirement on bolt holes is high, in the flange manufacturing process, the distances among the holes on the flanges manufactured by different manufacturers are inconsistent, so that bolt holes cannot be completely matched, and the flanges cannot be connected due to the fact that bolts cannot penetrate through the flanges. When the flanges are connected through bolts, bolt holes need to be formed in the rubber gaskets, and the rubber gaskets at the bolt holes are easily torn in the bolt tightening process, so that the air tightness integrity between the flanges can be damaged, and a large amount of working hours and materials are increased on site and wasted.

Disclosure of Invention

The invention aims to overcome the defect that the connection cannot be realized due to the fact that flange bolt holes are inconsistent in the prior art, and provides an air pipe connecting device and an air pipe system.

The invention solves the technical problems through the following technical scheme:

an air pipe connecting device comprises two flanges and a plurality of fasteners, wherein each flange comprises a connecting plate and a first flanging, each connecting plate is annular, one end of each first flanging is fixed to the outer ring of each connecting plate, and the other end of each first flanging extends towards one side of each connecting plate; the connecting plates of the two flanges are symmetrically arranged, and the first flanges of the two flanges extend in opposite directions; the fastener is provided with a first clamping jaw and a second clamping jaw, the first clamping jaw is fixedly connected with the second clamping jaw, the first clamping jaw clamps a first flanging of one flange, the second clamping jaw clamps a first flanging of the other flange, and connecting plates of the two flanges are tightly pressed.

In this scheme, adopt above-mentioned structural style, two flanges adopt the form of fastener joint, with the inseparable connection of two flanges together, have saved man-hour of installation, have practiced thrift mounting material to can guarantee that the leakproofness is good.

Preferably, the air pipe connecting device further comprises an annular sealing gasket, and the two connecting plates are sealed through the sealing gasket.

In this scheme, adopt above-mentioned structural style, can utilize the elastic deformation of sealed pad to fill the gap between two connecting plates, increased and revealed the resistance, guaranteed good gas tightness.

Preferably, the sealing gasket is a rubber gasket.

In this scheme, adopt above-mentioned structural style, utilized the rubber pad tissue characteristics such as fine and close, the texture is soft and the resilience is good.

Preferably, the air pipe connecting device further comprises a bolt, a threaded hole is formed between every two adjacent first flanges through the connecting plate, and the bolt is in threaded connection with the corresponding threaded holes in the two connecting plates.

In this scheme, adopt above-mentioned structural style, improved flange joint's reliability, avoid two flanges to take place relative displacement.

Preferably, the connecting plate is a square ring, and the threaded holes are located at corners of the connecting plate.

In this scheme, adopt above-mentioned structural style, only need open the screw hole in sealed corner of filling up, reduce sealed tearing possibility of filling up, improve the leakproofness.

Preferably, the other end of the first flanging is provided with a round-corner bulge, the clamping jaw comprises a clamping groove, the clamping surface of the clamping groove is attached to the matching surface of the round-corner bulge, and the clamping surface of the clamping groove and the matching surface of the round-corner bulge are curved surfaces.

In this scheme, adopt above-mentioned structural style, increase the laminating area of block surface and fitting surface, improve the reliability of joint, avoid stress concentration.

Preferably, the clamping jaw further comprises a connecting part, the clamping groove and the connecting part are fixedly connected at a first angle, the first flanging is plate-shaped, and the first flanging is perpendicular to the connecting plate.

In this scheme, adopt above-mentioned structural style, can increase the reliability of jack catch and first turn-ups joint, avoid droing because of not hard up at the joint in-process.

Preferably, the flange further comprises a second flanging, one end of the second flanging is fixed to the connecting plate, and the extending direction of the second flanging is the same as that of the first flanging.

In this scheme, adopt above-mentioned structural style, utilize the second turn-ups on the flange to be connected with the tuber pipe, guaranteed reliability and stability of being connected between tuber pipe and flange.

Preferably, the first flanging is distributed along the circumferential direction of the connecting plate at intervals, the fastening pieces are distributed along the circumferential direction of the connecting plate, and the distance between every two adjacent fastening pieces is 150-300 mm.

In this scheme, adopt above-mentioned structural style, select suitable fastener interval, in effectual saving consumptive material, when reducing use cost, still improved reliability and stability of being connected between fastener and flange, avoid two flanges to produce relative displacement.

An air pipe system comprises an air pipe connecting device, wherein the air pipe connecting device comprises two flanges and a plurality of fasteners, the flanges comprise a connecting plate and a first flanging, the connecting plate is annular, one end of the first flanging is fixed on the outer ring of the connecting plate, and the other end of the first flanging extends to one side of the connecting plate; the connecting plates of the two flanges are symmetrically arranged, and the first flanges of the two flanges extend in opposite directions; the fastening piece is provided with a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are fixedly connected, the first clamping jaw clamps the first flanging of one flange, the second clamping jaw clamps the first flanging of the other flange, and connecting plates of the two flanges are tightly pressed; the air pipe system further comprises a plurality of air pipes, and the adjacent air pipes are connected through the air pipe connecting device, wherein one air pipe is fixedly connected with one flange, and the other air pipe is fixedly connected with the other flange.

In this scheme, adopt above-mentioned structural style, can conveniently install on-the-spot, solve the limited problem in part flange bolt construction space. Due to the fact that the number of the bolts is reduced, working hours are saved, labor intensity of workers is reduced, meanwhile, the damage degree of the sealing gasket is reduced, and the sealing performance of flange connection is improved.

Preferably, the air pipe and the connecting plate are both square, and the corner of the air pipe corresponds to the corner of the connecting plate.

In this scheme, adopt above-mentioned structural style, keep the four corners of junction unanimous when can making a plurality of tuber pipe connect simultaneously, each is connected the face and closely laminates, guarantees to connect reliably, avoids appearing obvious bending.

The positive progress effects of the invention are as follows:

the air pipe connecting device breaks through the traditional connecting mode of bolted connection between flanges, adopts the mode that the flanges are clamped by the fastening piece, eliminates the problem of incapability of connection caused by inconsistent bolt holes between the flanges, improves the efficiency of field installation, and reduces the waste of installation materials. And, reduced the quantity of screw hole between the flange, be favorable to the mass production.

Drawings

Fig. 1 is a partial cross-sectional view of a flange connection device for an air duct according to an embodiment of the present invention.

Fig. 2 is a schematic view of a fastening piece of the air pipe flange connection device according to the embodiment of the invention.

FIG. 3 is a schematic view, partially in section, of an air duct attachment according to an embodiment of the present invention.

FIG. 4 is a schematic top view of an air duct system according to an embodiment of the present invention.

Fig. 5 is a perspective view of an air duct system according to an embodiment of the present invention.

Description of reference numerals:

flange 1

First turned-over edge 11

Connecting plate 12

Second turned-up edge 13

Fastener 2

First jaw 21

Second jaw 22

Card slot 211

Air duct connecting device 3

Gasket 31

Air duct system 4

Bolt 41

Duct 51

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, an air duct connecting device 3 according to an embodiment of the present invention includes two flanges 1 and a plurality of fasteners 2, where the flanges 1 include a connecting plate 12 and a first flange 11, the connecting plate 12 is annular, one end of the first flange 11 is fixed to an outer ring of the connecting plate 12, and the other end extends to one side of the connecting plate 12; the connecting plates 12 of the two flanges 1 are symmetrically arranged, and the first flanges 11 of the two flanges 1 extend in opposite directions; the fastener 2 is provided with a first clamping jaw 21 and a second clamping jaw 22, the first clamping jaw 21 and the second clamping jaw 22 are fixedly connected, the first clamping jaw 21 clamps the first flanging 11 of one flange 1, the second clamping jaw 22 clamps the first flanging 11 of the other flange 1, and the connecting plates 12 of the two flanges 1 are pressed tightly.

Utilize 2 joint flange 1's of fastener mode, avoided because the problem of the unable installation that two 1 screw holes of flange mismatch lead to, saved man-hour, improved the installation effectiveness. In addition, the flanges 1 are clamped by the fasteners 2, so that the number of the bolts 41 is reduced, the production efficiency can be improved, the material waste is reduced, and the production cost is reduced.

The air duct connecting device 3 further comprises an annular sealing gasket 31, and the two connecting plates 12 are sealed by the sealing gasket 31.

The sealing gasket 31 is an important component of the air duct connecting device 3, and its main function is to fill the gap between the two connecting plates 12 by elastic deformation of the sealing gasket 31, and form a seal between the connecting planes of the two connecting plates 12, so as to prevent the escape or intrusion of gas even under extreme pressure and temperature. The air duct connecting device 3 is sealed by the sealing gasket 31, so that the connection tightness is improved.

The gasket 31 is a rubber gasket.

The rubber pad has strong elastic deformation capability, very good high temperature resistance, anti-skid, wear-resistant and other functions, and is widely produced and used. In this embodiment, select the rubber pad to seal, practiced thrift installation and use cost when guaranteeing sealed.

The air duct connecting device 3 further comprises a bolt 41, the connecting plate 12 has a threaded hole between two adjacent first flanges 11, and the bolt 41 is in threaded connection with the corresponding threaded holes on the two connecting plates 12.

The two adjacent first turned-over edges 11 are connected through the bolts 41, so that the connection reliability of the flanges 1 is improved, the two flanges 1 are prevented from relative displacement, and the connection strength of the two flanges 1 is improved.

The connecting plate 12 is a square ring, and the threaded holes are located at the corners of the connecting plate 12.

The screw hole is established in the corner of connecting plate 12, can reduce installation time to the screw hole only has the corner of connecting plate 12, has reduced the quantity that sealed pad 31 punched between two connecting plates 12, has effectively prevented at the in-process that bolt 41 screwed up, and the easy torn problem of rubber pad 31 piece in bolt 41 hole department has improved the leakproofness of installation.

The other end of the first flanging 11 is provided with a round-corner bulge, the clamping jaw comprises a clamping groove 211, the clamping surface of the clamping groove 211 is attached to the matching surface of the round-corner bulge, and the clamping surface of the clamping groove 211 and the matching surface of the round-corner bulge are curved surfaces.

The clamping surface of the clamping groove 211 and the matching surface of the circular bead protrusions are curved surfaces which can be attached to each other, so that the reliability of clamping is guaranteed, the stress concentration phenomenon of the fastening piece 2 which is easy to appear when the flange 1 is clamped is avoided, and the problem of fatigue crack generation in the using process is reduced.

The clamping jaw further comprises a connecting part, the clamping groove 211 and the connecting part are fixedly connected at a first angle, the first flanging 11 is plate-shaped, and the first flanging 11 is perpendicular to the connecting plate 12.

In this embodiment, the jack catch and the design of first turn-ups 11, the not hard up problem of joint that can effectually avoid the joint in-process to appear easily.

The flange 1 further comprises a second flanging 13, one end of the second flanging 13 is fixed to the connecting plate 12, and the extending direction of the second flanging 13 is the same as that of the first flanging 11.

The reliability and the stability of the connection between the flanges 1 can be ensured, and meanwhile, the second flanging 13 of the flange 1 is used for connecting the air pipe 51, so that the connection reliability of the flange 1 and the air pipe 51 is ensured.

The first flanges 11 are distributed at intervals along the circumferential direction of the connecting plate 12, the fastening pieces 2 are distributed along the circumferential direction of the connecting plate 12, and the distance between every two adjacent fastening pieces 2 is 150-300 mm.

By limiting the distance between two adjacent fastening members 2, the reliability of the fastening members 2 in connection with the flange 1 is ensured.

Referring to fig. 4-5, as will be understood, the embodiment of the present invention further provides an air duct system 4, where the air duct system 4 includes the air duct connecting device 3 and a plurality of air ducts 51, and adjacent air ducts 51 are connected by the air duct connecting device 3, where one air duct 51 is fixedly connected to one flange 1, and the other air duct 51 is fixedly connected to the other flange 1.

The air pipe system 4 is connected by the air pipe connecting device 3, and the problem that the installation space of the bolt 41 is limited in the installation of the flange 1 is solved. Due to the fact that the number of bolts 41 is reduced in the connection mode, installation reliability is improved, labor intensity of workers is reduced, the damage degree of the sealing gasket 31 is reduced due to the fact that threaded holes in the sealing gasket 31 are reduced, and connection sealing performance is improved.

The air pipe 51 and the connecting plate 12 are both square, and the corner of the air pipe 51 corresponds to the corner of the connecting plate 12.

The four corners of the connection part are kept consistent when the air pipes 51 are connected simultaneously, the connection surfaces are tightly attached, the connection reliability is guaranteed, and obvious bending is avoided.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.