CN102345770A

CN102345770A - Connection structure for end ports of ventilating ducts

Info

Publication number: CN102345770A
Application number: CN2011102755356A
Authority: CN
Inventors: 侯初
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-02-08

Abstract

The invention discloses a connection structure for end ports of ventilating ducts, belonging to the technology of ventilating duct connection. The connection structure comprises two ventilating ducts of which end ports are opposite to each other, and four connection pieces; the ventilating ducts are both square pipes, and four sides of each port of each ventilating duct are all provided with outward bended edges; both sides of each connection piece are provided with bending edges buckled with corresponding bended edges, and the connection pieces and the bended edges are buckled together and form an axially compactable structure. The structure is extruded by a special electric tool, then, four corners of each ventilating duct are sealed by gluing or pasting rubberized fabrics so as to ensure the tightness of the whole duct. The connection structure is suitable for connection constructions for ventilating ducts of central air-conditioners in large buildings, and by the connection structure, the ventilating ducts are connected firmly, construction efficiency is improved, labor intensity is reduced and construction cost is saved.

Description

Ventilation duct port linkage structure

Technical field

The present invention relates to ventilation duct port interconnection technique.

Background technique

In the linkage structure of ventilation duct port, how be connected the port of ventilation duct with angle iron flange or impact briquetting flange, dock with the flange of the fastening mode of screw again ventilation duct, adopt this process method construction efficient low and expense is high.

Summary of the invention

Technical problem to be solved by this invention provide a kind of simple in structure, join strength is high, constructing operation is convenient, the ventilation duct port linkage structure that manufacturing efficiency is high.

For solving the problems of the technologies described above, the technological scheme that the present invention taked is: a kind of ventilation duct port linkage structure is characterized in that: comprise two ports ventilation duct and four links in opposite directions; Four limits that said ventilation duct is its port of square tube are equipped with outside bending edges, and said link both sides are equipped with the crimp that fastens with corresponding bending edges, but the structure of said link and bending edges fastening and formation axial compression.

Further improvement to the present invention did is: the structure of said bending edges is three flangings; Wherein first flanging is by the bending that makes progress of the port of ventilation duct; Second flanging is by the bending left of first flanging, and the 3rd flanging is by the downward bending of second flanging, and the length of said the 3rd flanging is less than first flanging; The structure of the crimp in said link left side is three flangings, and wherein Fourth Fold is by the downward bending in the left side of link, and the 5th flanging is by Fourth Fold bending to the right, and the 6th flanging is by the bending that makes progress of the 5th flanging, and the length of said the 6th flanging is less than Fourth Fold; Said Fourth Fold, the 5th flanging and the 6th flanging wrap up the 3rd flanging; Between the said ventilation duct port and first flanging and the angle between link matrix face and the Fourth Fold be the right angle, the angle that forms flanging in said bending edges and the crimp is the right angle.

Adopt the beneficial effect that technique scheme produced to be: to guarantee the ventilation duct join strength, enhance productivity, reduce labor intensity, save operating expenses.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.

Fig. 1 is the bending edges of ventilation duct and the structural representation that link fastens;

Fig. 2 is that the flanging of ventilation duct and the flanging of link are the structural representation that the right angle also fastens;

Fig. 3 is the work progress schematic representation.

As shown in the figure: 1 ventilation duct, 2 links, 3 bending edges, 4 crimps, 6 first flangings, 7 second flangings, 8 the 3rd flangings, 9 Fourth Folds, 10 the 5th flangings, 11 the 6th flangings.

Embodiment

Combine Fig. 1, Fig. 2 and Fig. 3 that structure of the present invention is further specified: this ventilation duct port linkage structure comprises two ports ventilation duct 1 and four links 2 in opposite directions at present; Four limits that said ventilation duct 1 is its port of square tube are equipped with outside bending edges 3, and said link 2 both sides are equipped with the crimp 4 that fastens with corresponding bending edges 3, but the structure of said link 2 and bending edges 3 fastenings and formation axial compression; The structure of said bending edges 3 is three flangings, and wherein first flanging 6 is by the bending that makes progress of the port of ventilation duct 1, and second flanging 7 is by first flanging 6 bending left, and the 3rd flanging 8 is by the 7 downward bendings of second flanging, and the length of said the 3rd flanging 8 is less than first flanging 6; The structure of the crimp 4 in said link 2 left sides is three flangings; Wherein Fourth Fold 9 is by the downward bending in the left side of link 2; The 5th flanging 10 is by Fourth Fold 9 bending to the right, and the 6th flanging 11 is by the 10 upwards bendings of the 5th flanging, and the length of said the 6th flanging 11 is less than Fourth Fold 9; Said Fourth Fold 9, the 5th flanging 10 and the 6th flanging 11 are with the 3rd flanging 8 parcels; Between said ventilation duct 1 port and first flanging 6 and the angle between link 2 matrix faces and the Fourth Fold 9 be the right angle, the angle that forms flanging in said bending edges 3 and the crimp 4 is the right angle.

Described bending edges 3 can be made up of both sides or three limits with crimp 4, can be connected or amounts to connection for circular arc between limit and the limit; Its sectional shape can be arbitrarily under the prerequisite of buckling state mutually keeping for described bending edges 3 and crimp 4; After but the structure of described axial compression was meant and fastens mutually between link 2 and bending edges 3 each flanging, its profile made things convenient for tool using both direction extruding from the left and right sides.

The making step of this structure: one; Four jiaos of ventilation duct 1 port are cut off by equal length; After the rabbet shaping,, guarantee between ventilation duct 1 surface and first flanging 6, between first flanging 6 and second flanging 7, be right angle and smooth between second flanging 7 and the 3rd flanging 8 with mould control.Two, link 2 both sides are controlled with mould, guarantee between its surface and the Fourth Fold 9, between Fourth Fold 9 and the 5th flanging 10, be right angle and smooth between the 5th flanging 10 and the 6th flanging 11.Three, the flanging forward surface of two ventilation ducts 1 is right, link 2 is inserted from a side in the flanging of ventilation duct 1, with the electric tool that has special-purpose roller the flanging between link 2 and the ventilation duct 1 is pushed interlock.Four, again the slit of 1 four jiaos of ventilation ducts is sticked with glue or the adhesive plaster mode seals, guarantee the sealing of whole piece pipeline.

Claims

1. a ventilation duct port linkage structure is characterized in that: comprise two ports ventilation duct (1) and four links (2) in opposite directions; Four limits that said ventilation duct (1) is its port of square tube are equipped with outside bending edges (3); Said link (2) both sides are equipped with the crimp (4) that fastens with corresponding bending edges (3), said link (2) and bending edges (3) but the structure of fastening and formation axial compression.

2. ventilation duct port linkage structure according to claim 1; It is characterized in that: the structure of said bending edges (3) is three flangings; Wherein first flanging (6) is by the bending that makes progress of the port of ventilation duct (1); Second flanging (7) is by first flanging (6) bending left; The 3rd flanging (8) is by second flanging (7) bending downwards, and the length of said the 3rd flanging (8) is less than first flanging (6); The structure of the crimp (4) in said link (2) left side is three flangings; Wherein Fourth Fold (9) is by the downward bending in left side of link (2); The 5th flanging (10) is by Fourth Fold (9) bending to the right; The 6th flanging (11) is by upwards bending of the 5th flanging (10), and the length of said the 6th flanging (11) is less than Fourth Fold (9); Said Fourth Fold (9), the 5th flanging (10) and the 6th flanging (11) wrap up the 3rd flanging (8); Between said ventilation duct (1) port and first flanging (6) and the angle between link (2) matrix face and the Fourth Fold (9) be the right angle, the angle that forms flanging in said bending edges (3) and the crimp (4) is the right angle.