CN2318314Y

CN2318314Y - Multi-section changeable air duct

Info

Publication number: CN2318314Y
Application number: CN 97243958
Authority: CN
Inventors: 黄丽玲
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-17
Filing date: 1997-11-17
Publication date: 1999-05-12
Anticipated expiration: 2007-11-17

Abstract

The utility model relates to an air pipe, which has the advantages of good adaptability and convenient installation. The utility model is a multi-section changeable air pipe, each section of which comprises at least two sections of disjunctive end pipes. The utility model is characterized in that each end pipe is a round pipe which is riveted by two layers of inner and outer pipes; the joint of the end pipes is an oblique section of which the port is provided with a protrusion; the protrusion of an end pipe covers the protrusion of the other end pipe to form a rotating state between both end pipes. The end which is close to the external of each end pipe is provided with a concave ring and a clamping point which enable adjacent end pipes to clamp and connect in series. The utility model is used for building ventilation.

Description

Multistage type variable airduct

The utility model relates to ventilating duct.

Existing tortuous airduct, it all is the single-layer type of fixed in shape, be subjected to the fabricating yard restriction more, running into the special situation of angle of turn especially, must make first in-site measurement, customized specially, need spend more Measuring Time, commute time and prepare process time, and install time-consumingly, turn over and just resume classes; Single-layer type also can produce noise or the like.

The purpose of this utility model provides a kind of saving of labor, saves time, and compliance is good, installs and uses more convenient multistage type variable airduct.

The purpose of this utility model is achieved in that multistage type variable airduct, its each joint airduct contains the two sections end pipes that can transfer at least, it is characterized in that: each end pipe is a pipe, form by inside and outside two-layer pipe rivet clasp, each end pipe joint is a scarf, the scarf port is provided with projection, and the projection of an end pipe covers the projection of other end pipe, forms rotatable state between the pipe of two ends; Each nearly outer end of end pipe respectively is provided with scrobicular ring and the stuck point that the end pipe that makes adjacent joint can snap in serial connection.

Above-mentioned design can be formed two-part by the two ends pipe, and two ends Guan Yuyi intervalve is formed syllogic, and the two ends pipe is formed four-part form etc. with two intervalves, thereby it is strong to reach compliance, effect easy to use.

Below by drawings and Examples the utility model is described further again.

Fig. 1 the utility model two-section pipe stereogram;

Fig. 2 the utility model two-section pipe front view;

Fig. 3 is the A place part sectional view of Fig. 2;

Fig. 4 the utility model four-part form pipe stereogram;

Fig. 5 the utility model four-part form pipe partly cuts open figure;

Fig. 6 the utility model four-part form pipe three-dimensional exploded view;

Figure is partly cutd open in the another kind of combination of Fig. 7 the utility model;

Fig. 8 the utility model outer tube vertical view;

Another implements vertical view Fig. 9 the utility model outer tube;

Figure 10 the utility model two-section pipe first is implemented schematic diagram;

Figure 11 the utility model two-section pipe second is implemented schematic diagram;

Figure 12 the utility model four-part form pipe first embodiment schematic diagram;

Figure 13 the utility model four-part form pipe second is implemented schematic diagram.

Shown in Fig. 1-9: multistage type variable airduct, its each joint airduct 1 contains the two sections end pipes 10 that can transfer at least, it is characterized in that: each end pipe 10 is pipe, form by inside and outside two-

layer pipe

14,15 rivet clasps, each end pipe 10 joint is a scarf, the scarf port is provided with

projection

13,17, and the projection of an end pipe 10 covers the projection of other end pipe 10, forms 10,10 rotatable states of two ends pipe; Each end pipe 10 nearly outer end respectively is provided with the scrobicular ring 11 and stuck point 12 that the end pipe 10 that makes adjacent joint can snap in serial connection.Wherein, contain outside two

sections end pipes

10,10, contain one section intervalve 20 at least again, intervalve 20 also is made up of inside and outside two-layer pipe rivet clasp, and has scarf in two ends, and the scarf port is provided with projection 23,27 and joins with approach end pipe 10 or intervalve 20.Be generally iron sheet with rivet 16 affixed one-tenth pipes with material, the joint have one to invagination one outwards folding collude solid mode for two kinds, the joint scarf can miter angle, 30 degree angles or 60 degree angles, two-part is good with miter angle, four-part form is good with 30 degree angles.Each end pipe 10 nearly outer end external surface respectively is provided with a scrobicular ring 11 and stuck point 12, scrobicular ring 11 as horn shape deeply to advancing internal layer, make in abutting connection with firm, every pipe joint one end open end port extexine external diameter is bigger, the internal layer internal diameter is less, abutting end inserts in the open end, there is scrobicular ring to limit and snaps in the degree of depth, make and to be connected in series and to utilize stuck point 12 to be pressed on the adjacent pipe joint appearance place of access between 2-section pipe,

projection

13,17 is cone-shaped,

projection

13,17 with end pipe 10 of abutting end 18 is pushed down the projection 13 ' of the end pipe with openend 19,17 ' the outside, and formation can't separated structures.Also can form inside projection, but effect is identical.

Shown in Figure 10-13: be various assembling modes of the present utility model.Can adopt various combinations to connect, more can cooperate T shape or breeches pipe road etc., improve installation effectiveness greatly, and assemble easy, convenient, noise is little, practical.

Claims

1, multistage type variable airduct, its each joint airduct contains the two sections end pipes that can transfer at least, it is characterized in that: each end pipe is a pipe, form by inside and outside two-layer pipe rivet clasp, each end pipe joint is a scarf, the scarf port is provided with projection, and the projection of an end pipe covers the projection of other end pipe, forms rotatable state between the pipe of two ends; Each nearly outer end of end pipe respectively is provided with scrobicular ring and the stuck point that the end pipe that makes adjacent joint can snap in serial connection.

2, multistage type variable airduct as claimed in claim 1, it is characterized in that: wherein, contain outside two sections end pipes, at least again contain one section intervalve, intervalve also is made up of inside and outside two-layer pipe rivet clasp, and having scarf in two ends, the scarf port is provided with projection and joins with approach end pipe or intervalve.