CN212289502U - Tail decorative pipe capable of preventing contact abnormal sound - Google Patents

Abstract

The utility model discloses a prevent tail decorations pipe of contact type abnormal sound, it includes outer courage and presses the inner bag and the welding assembly support on the inner bag in outer courage of joining in marriage, the exhaust end of outer courage is equipped with the inside flanging, the exhaust end of inner bag has the portion of bending with inside flanging matched with, the circumference suppression has the round to the bellied interval of axis and lays the bump in the portion of bending, outer courage and inner bag press the chucking through inside flanging and bump. The utility model discloses set up round spaced bump in the portion of bending and realize the cooperation of inner bag spaced surface, inner bag face and outer bag inside flanging clearance fit between bump and bump, the effectual invalid contact of having avoided has structurally avoidd the contact abnormal sound of inner and outer courage.

Description

Tail decorative pipe capable of preventing contact abnormal sound

Technical Field

The utility model relates to a prevent tail decorative pipe of contact type abnormal sound belongs to the automobile parts field.

Background

The automobile tail decoration pipe comprises an exhaust tail pipe and a decoration tail pipe, and the decoration tail pipe is changeable in shape and cool in appearance. At present, the decorative tail pipe mainly comprises an outer liner, an inner liner and a support, wherein the support is welded with the inner liner during assembly, and the inner liner is in press fit contact with the outer liner. The overlap joint mode of the inner and outer containers is divided into two types, one type is line-surface matching, namely, the turn-up edge line of the outer container is in overlap joint with the bending part of the inner container, and the other type is surface-surface matching, namely, the turn-up surface of the outer container is in overlap joint with the bending part of the inner container. The whole-circle lap joint of the inner container and the outer container in the two modes has invalid contact, and can generate contact abnormal sound, so that the defects exist.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model provides a prevent tail decorations pipe of contact type abnormal sound, the utility model discloses a technical scheme as follows:

the utility model provides a prevent tail decorative pipe of contact type abnormal sound, its includes outer courage and presses the inner bag of joining in marriage in outer courage and weld the assembly support on the inner bag, the exhaust end of outer courage is equipped with the inside out turned edge, the exhaust end of inner bag have with inside turned edge matched with portion of bending, the circumference suppression has the bump that the round was laid to the bellied interval of axis in the portion of bending, outer courage and inner bag press through inside out turned edge and bump and join in marriage the chucking.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses set up round spaced bump in the portion of bending and realize the cooperation of inner bag spaced surface, inner bag face and outer bag inside flanging clearance fit between bump and bump, the effectual invalid contact of having avoided has structurally avoidd the contact abnormal sound of inner and outer courage.

Drawings

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

fig. 2 is an enlarged schematic view of a structure of fig. 1.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1-2, a tail decorative pipe for preventing contact abnormal sound comprises an outer liner 1, an inner liner 2 press-fitted in the outer liner 1, and a support 3 welded on the inner liner 2, wherein an inner flange 4 is arranged at an exhaust end of the outer liner 1, a bending part 5 matched with the inner flange 4 is arranged at the exhaust end of the inner liner 2, a circle of convex points 6 protruding towards a central axis are pressed on the bending part 5 in the circumferential direction, and the outer liner 1 and the inner liner 2 are press-fitted and clamped with the convex points 6 through the inner flange 4.

The utility model discloses set up round spaced bump in the portion of bending and realize the cooperation of inner bag spaced surface, the bump is equivalent to the spring leaf structural action on the inner bag, guarantees certain pretension pressure, and the effectual invalid contact of having avoided is in inner bag surface and the outer bag inside flanging clearance fit between bump and bump, has structurally avoidd the contact abnormal sound of inner bag outside.

The foregoing is a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims (1)

1. The utility model provides a prevent tail-trim pipe of contact type abnormal sound, includes outer courage and presses the inner bag and the welding assembly support on the inner bag of pressing in outer courage, its characterized in that: the exhaust end of outer courage is equipped with the inside flanging, the exhaust end of inner bag has the portion of bending with inside flanging matched with, the circumference suppression has the bump that the round was laid to the bellied interval of axis in the portion of bending, outer courage and inner bag press through inside flanging and bump pressure to join in marriage the chucking.

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