CN214037258U

CN214037258U - Bridging structure of air pipe

Info

Publication number: CN214037258U
Application number: CN202022360283.4U
Authority: CN
Inventors: 俞兵; 金尚明; 蔺攀; 张俊生; 王林; 刘斌; 潘凯
Original assignee: Guangzhou Chengtie Metal Products Co ltd
Current assignee: Guangzhou Chengtie Metal Products Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-08-24
Anticipated expiration: 2030-10-21

Abstract

The bridging structure of the air pipe comprises two air pipes, the cross section of each air pipe is square, each air pipe comprises four side walls, the end part of each side wall is provided with a bent edge extending outwards, the bent edges on the two air pipes are mutually butted, an annular sealing gasket is arranged at the joint of the two air pipes, and the sealing gasket is clamped between the bent edges on the two air pipes; the four end corners of the butt joint of the two air pipes are respectively provided with a connecting piece, two sides of the connecting piece respectively extend out of two clamping arms, and two mutually butted bent edges on the two air pipes are clamped between the two clamping arms on the same side of the connecting piece; a fixing piece used for tensioning the two clamping arms is arranged between the two clamping arms. The utility model discloses when the installation, utilize the fixed two tuber pipe butt joint department's of connecting piece end bight, make tuber pipe butt joint department have higher intensity, need not to set up flange in addition on the tuber pipe, only need utilize the centre gripping arm on the connecting piece will buckle the limit and press from both sides the fastening fixed can, improved the efficiency of tuber pipe construction installation.

Description

Bridging structure of air pipe

Technical Field

The utility model relates to a ventilation technology field, concretely relates to bridging structure of tuber pipe.

Background

The air duct is generally a sheet metal part, is limited by sheet metal strength, processing conditions and installation environment, is generally processed into a multi-section structure, and is sequentially butted with multiple sections of air ducts during construction and installation; the original air pipes are circular in section, flanges are arranged at the end parts of the air pipes when the air pipes are in butt joint, and the butt joint between the two air pipes is realized through the flanges; however, circular shape tuber pipe is lower to space utilization, it is square tuber pipe that the cross section is comparatively general at present, it still utilizes the flange that the tip set up to realize the butt joint, however, flange need bend at the tip of tuber pipe and form, because sheet metal component's intensity is less, the flange that utilizes the sheet metal to bend the formation hardly guarantees tuber pipe butt joint position's intensity and leakproofness when the butt joint, also some tuber pipes are the flange of a intensity preferred of additional connection at the tip, but this kind of butt joint mode leads to the construction cost of tuber pipe higher, the installation effectiveness is lower.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims at providing a bridging structure of tuber pipe, it can guarantee that tuber pipe butt joint department has higher intensity, improves the efficiency of construction simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the bridging structure of the air pipe comprises two air pipes, the cross section of each air pipe is square, each air pipe comprises four side walls, the end part of each side wall is provided with a bent edge extending outwards, the bent edges on the two air pipes are mutually butted, an annular sealing gasket is arranged at the joint of the two air pipes, and the sealing gasket is clamped between the bent edges on the two air pipes; the four end corners of the butt joint of the two air pipes are respectively provided with a connecting piece, two sides of the connecting piece respectively extend out of two clamping arms, and two mutually butted bent edges on the two air pipes are clamped between the two clamping arms on the same side of the connecting piece; a fixing piece used for tensioning the two clamping arms is arranged between the two clamping arms.

The outer parts of the mutually butted bent edges of the two air pipes are sleeved with a clamping piece, and the clamping piece comprises two pressing plates which respectively abut against the outer surfaces of the two bent edges.

The outer edge of the bent edge is provided with a folded edge which is folded towards the direction close to the side wall, and the folded edge is propped against the inner surface of the pressing plate.

A through groove is formed between the turning edge and the bending edge, and a reinforcing rod is connected in the through groove in a penetrating manner and is tightly matched with the inner surfaces of the turning edge and the bending edge.

The cross section of the reinforcing rod is elliptical.

The fixing piece comprises a bolt and a nut, the bolt penetrates through the two clamping arms and the two mutually butted bending edges on the two air pipes, the nut is screwed on the bolt, the nut of the bolt is pressed on the outer surface of one of the clamping arms, and the nut is pressed on the outer surface of the other clamping arm.

The beneficial effects of the utility model reside in that:

the utility model discloses when the installation, utilize the fixed two tuber pipe butt joint department's of connecting piece end bight, make tuber pipe butt joint department have higher intensity, need not to set up flange in addition on the tuber pipe, only need utilize the centre gripping arm on the connecting piece will buckle the limit and press from both sides the fastening fixed can, improved the efficiency of tuber pipe construction installation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view at a in fig. 1.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, for the present invention, the bridging structure of the air duct comprises two air ducts 10 butted against each other, the cross section of the two air ducts 10 is square, and the air ducts 10 include four side walls, a bent edge 11 extending outward is provided at the end of each side wall, the bent edge 11 is directly formed by bending a metal plate constituting the side wall, when the two air ducts 10 are butted, the corresponding bent edges 11 are butted against each other, and an annular sealing gasket 40 is provided at the butt joint of the two air ducts 10, the sealing gasket 40 is clamped between the bent edges 11 of the two air ducts 10, so as to maintain the sealing performance of the butt joint of the two air ducts 10; in addition, four connecting pieces 20 are further disposed at the butt joint of the two air ducts 10, the four connecting pieces 20 are respectively disposed at four end corners of the butt joint of the two air ducts 10, two sides of the connecting piece 20 respectively extend out of the two clamping arms 21, a gap is formed between the two clamping arms 21, when the connecting piece 20 is disposed at the end corner of the butt joint of the two air ducts 10, at one side of the connecting piece 20, two bent edges 11 of the two air ducts 10, which are butted with each other, are inserted into a gap between two connecting clamps 21, the two bent edges 11 are clamped by the two clamping arms 21, and at the same time, a fixing part is arranged between the two clamping arms 21, the two clamping arms 21 are tensioned by the fixing part, so that the end parts of the mutually butted bent edges 11 on the two air ducts 10 are fastened together, and the four connecting pieces 20 clamp and fix the mutually butted bent edges 11 on the two air ducts 10 at the butted end corners of the two air ducts 10, so that the two air ducts 10 are butted and fixed together.

In a preferred embodiment, the utility model discloses still be provided with holder 30, this holder 30 is bent by the sheet metal component and is formed, and its cross-section is roughly C shape, including two clamp plates 31, holder 30 outside-in cover is established on the limit of buckling 11 that two tuber pipes 10 dock each other to be located between two adjacent connecting pieces 20, it has certain elastic deformation ability, and two clamp plates 31 support respectively and prop up the surface at two limit of buckling 11, are used for further fastening two curved hem 11 together. Furthermore, a folded edge 12 folded toward the direction close to the side wall may be disposed at the outer edge of the bent edge 11, and the folded edge 12 abuts against the inner surface of the pressing plate 31 to outwardly support the pressing plate 31, so as to increase the deformation of the pressing plate 31, and then the pressing plate 31 provides a larger clamping force to clamp the two bent edges 11.

In addition, the above-mentioned turned edge 12 is formed through a bending process, which can increase the longitudinal rigidity of the turned edge 11, and then increase the strength of the butt joint of the air duct 10; after the folded edge 12 is formed by bending, a through groove 13 is formed between the folded edge 13 and the bending edge 11, a reinforcing rod 50 penetrates through the through groove 13, and the longitudinal rigidity of the bending edge 11 is further increased by the reinforcing rod 50. In addition, the cross-section of stiffener 50 also can be set up to the ellipse, after penetrating logical groove 13 with stiffener 50, rotate stiffener 50, usable stiffener 50 will turn over hem 12 and outwards roof pressure, then with the outside roof pressure of clamp plate 31, the deflection of clamp plate 31 has further been increased, thereby make the limit 11 of buckling that two tuber pipes 10 butted against each other can be by further compressing tightly, and make the limit 11 of buckling to compress tightly sealed 40, when improving two tuber pipes 10 joint strength, the leakproofness of butt joint has been increased.

The fixing piece comprises a bolt and a nut, the bolt traverses the two clamping arms 21 and the two bent edges 11 on the same side of the connecting piece 20, the nut is screwed on the bolt, when the nut is screwed, the nut of the bolt is pressed on the outer surface of one clamping arm 21, and the nut is pressed on the outer surface of the other clamping arm 21, so that the end parts of the two butted bent edges 11 are fastened together; the fixing member is not limited to the bolt and the nut, and may have other structures such as a rivet.

The foregoing is merely a preferred embodiment of the present invention, and further details of the present invention are described in conjunction with specific preferred embodiments, which should not be construed as limiting the practice of the invention to these descriptions. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The bridging structure of the air pipe is characterized by comprising two air pipes, the cross sections of the air pipes are square, each air pipe comprises four side walls, the end part of each side wall is provided with a bent edge extending outwards, the bent edges on the two air pipes are mutually butted, an annular sealing gasket is arranged at the joint of the two air pipes, and the sealing gasket is clamped between the bent edges on the two air pipes; the four end corners of the butt joint of the two air pipes are respectively provided with a connecting piece, two sides of the connecting piece respectively extend out of two clamping arms, and two mutually butted bent edges on the two air pipes are clamped between the two clamping arms on the same side of the connecting piece; a fixing piece used for tensioning the two clamping arms is arranged between the two clamping arms.

2. A bridging structure for air ducts as claimed in claim 1, wherein the bent edges of the two air ducts abutting each other are externally sleeved with a clamping member, and the clamping member comprises two pressing plates respectively abutting against the outer surfaces of the two bent edges.

3. The bridging structure for air ducts of claim 2, wherein the outer edges of the bent edges are provided with folded edges folded toward the side walls, the folded edges abutting against the inner surface of the platen.

4. A bridging structure for air ducts as claimed in claim 3, wherein the flanges and the bent edges define a channel therebetween, and a reinforcing bar is inserted into the channel and is in close fit with the inner surfaces of the flanges and the bent edges.

5. A bridging structure for an air duct according to claim 4, in which the cross-section of the reinforcing rods is elliptical.

6. A bridging structure for air ducts according to claim 1, in which the fixing means comprises a bolt extending across the arms and the opposed bent edges of the ducts, and a nut threaded onto the bolt, the nut being pressed against the outer surface of one of the arms and the nut being pressed against the outer surface of the other arm.