CN2243015Y - Sealed telescopic metal flexible tube - Google Patents

Abstract

The utility model relates to a metal flexible tube, particularly a telescopic metal flexible tube with a sealing function and round outer surface. The telescopic metal flexible tube comprises coupling links which are mutually coupled one circle by another circle and flanges which are arranged on two ends of a flexible tube. After the coupling links are mutually coupled, a channel near to be sealed is constructed in the coupling links. The coupling links are round shaped. An external clearance on outside and an internal clearance inside are arranged between every two coupled coupling links.

Description

The scalable metallic hose of sealed type

The utility model relates to metallic hose, specifically a kind of rounded scalable metallic hose of appearance with sealing function.

Between motor car engine and outlet pipe, generally need connect, influence the coupled situation between outlet pipe and the motor to avoid jolting in the vehicle traveling process with salable and telescopic metallic hose.The flexible pipe that adopts is usually by Germany and produced in USA now, domestic still do not have a production unit, this product that foreign country produces is because the profile of its coupling ring is a polygonal, thereby when when flexible pipe is installed, making situations such as flexible pipe is distorted, leak because of the flexible pipe distortion causes edges and corners easily, influence the using effect of flexible pipe.

The purpose of this utility model is the better metallic hose of a kind of telescopic using effect of design, to overcome above-mentioned defective.

Its main technical schemes comprises circle circle a coupling ring that is coupled to each other and a flange that is positioned at the flexible pipe two ends, after coupling ring is coupled to each other, its inner passage that constitutes near sealing state, the profile of coupling ring is rounded, the external series gap that is positioned at the outside is arranged between each coupling ring and be positioned at inner internal clearance; The coupling ring that one circle circle is coupled to each other is the band of a continuous reeling curl, its section configuration be " " type; The section configuration of the connecting relation between every two adjacent rings coupling ring be "

".

The utility model has the advantages that because the profile of coupling ring is circle, compare with original polygonal, when distortion, can not appear at polygonal edges and corners and produce problems such as leakage, thereby sealing effect is relatively good, secondly, because this flexible pipe is arranged on the connecting pipe between motor and outlet pipe, during work, the high-temp waste gas that motor produces will be discharged by outlet pipe behind this pipeline again, therefore, require this flexible pipe can bear distortion, high temperature can have the better seal performance again, and used outlet pipe on common metal flexible pipe such as the gas water-heater, because of its water temperature is not very high, can adopt the mode that rubber tube is set in metallic hose to solve sealing problem, but this pipe can not be used for waste pipe, each circle coupling ring of this patent owing to designed " " connecting relation that connects of type, thereby, make this patent both have can to twist, resistance and high temperature resistance property to have the better seal performance again.

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is the A--A view (the ellipse simplification is drawn as circle) of Fig. 1.

As shown in the figure: the coupling ring (2) that a circle circle is coupled to each other becomes the screw-shaped band to form by a continuous reeling, its section configuration be "

" shape, the section of the connection shape between every two adjacent rings coupling ring (2) be "

" type; at the two ends of whole flexible pipe connecting flanges (1); after coupling ring is coupled to each other; its inner passage that constitutes near sealing state; the profile of coupling ring (2) is rounded; the external series gap (2) that is positioned at the outside is arranged between each coupling ring (3) and be positioned at inner internal clearance (4), (3), (4) are for forming the exterior edge face of external series gap (6) among Fig. 1, and (7), (8) are for forming the interior edge face of internal clearance (5).

Claims (3)

1, the scalable metallic hose of sealed type, comprise circle circle a coupling ring (2) that is coupled to each other and a flange (1) that is positioned at the flexible pipe two ends, after coupling ring is coupled to each other, its inner passage (9) that constitutes near sealing state, the profile that it is characterized in that coupling ring (2) is rounded, the external series gap (2) that is positioned at the outside is arranged between each coupling ring (3) and be positioned at inner internal clearance (4).

2, flexible pipe according to claim 1 is characterized in that the coupling ring (2) that a circle circle is coupled to each other is that a continuous reeling becomes the screw-shaped band, and its section configuration is " type.

3, flexible pipe according to claim 1, the section that it is characterized in that the connection shape between every two adjacent rings coupling ring (2) for "

".

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