CN201325407Y - Curtain type airway tube for air chamber - Google Patents

Abstract

The utility model relates to a curtain type airway tube for an air chamber, which solves the problems that in the prior art, most of the airway tubes adopt a metal pipe or a rubber hose, and the producing cost is high, the products are lacking of softness and flexibility and difficult to be folded. The curtain type airway tube for the air chamber comprises a tube body and an air inlet arranged on one side of the tube body, and is characterized in that the tube body is folded and sewed by a nylon cloth, and the cloth corresponding to the air inlet are at least two layers; the tube body is provided with a plurality of air discharging holes. The curtain type airway tube has the advantages of low manufacturing cost, good flexibility, easy folding, small space occupying and convenient transportation; as the cloth corresponding to the air inlet are at least two layers, the cloth can be avoided from being torn when charging the air, and the working reliability is ensured.

Description

The curtain type gas bag ventilation flue

Technical field

The utility model relates to a kind of curtain type gas bag parts that are provided on the automobile, particularly a kind of curtain type gas bag ventilation flue.

Background technology

Curtain airbag is installed on the roof side rail, is used to protect chaufeur and occupant's head in the side collision accident, and transient pressure is very big when beginning to detonate owing to gas generator, only relies on airbag cloth itself can't bear this instantaneous pressure.In order to resist the pressure of this part, generally the air extractor duct at the curtain type gas bag gas generator uses the ventilation flue, the pressure that the ventilation flue not only can bear gas generator when detonating, but also can play the gas shunting action.Existing ventilation flue adopts metal tube or rubber tube more, and the cost height lacks flexibility and alerting ability, is difficult to fold, and especially metal tube takes up room greatly, brings many inconvenience to transportation.

Summary of the invention

The purpose of this utility model is the problem that will solve existing curtain type gas bag ventilation flue cost height, be difficult to fold, provide a kind of cost low, be convenient to curtain type gas bag ventilation flue folding and transportation.

The utility model is achieved in that this curtain type gas bag ventilation flue comprises body, be provided with admission port in body one side, its special character is: body is to be formed through folding sewing by nylon cloth sheet, and the cloth sheet at corresponding admission port place is at least two-layerly, is provided with a plurality of deflation holes on body.

Above-mentioned curtain type gas bag ventilation flue, sew or bond together in the two ends of the laminates sheet at corresponding admission port place, so that gas filled device is installed.

Above-mentioned curtain type gas bag ventilation flue, the deflation hole outer rim at corresponding admission port place is respectively equipped with sewing thread, because air pressure is excessive deflation hole is torn when avoiding inflating.

The utility model has the advantages that: cheap, elasticity is good, and it is little to be convenient to fold, to take up room, convenient transportation; Because it is two-layer that the cloth sheet at this curtain type gas bag ventilation flue admission port place is at least, because air pressure is excessive the cloth sheet is torn in the time of can avoiding inflating, guarantee its reliable operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the corresponding admission port of Fig. 1 is the A-A cutaway view Amplified image of two layers of cloth sheet;

Fig. 3 is the expansion scheme drawing of the utility model (corresponding admission port is the two layers of cloth sheet);

Fig. 4 is the scheme drawing after the folding for the first time sewing of cloth sheet among Fig. 3;

Fig. 5 is that the corresponding admission port of Fig. 1 is the A-A cutaway view Amplified image of three layers of cloth sheet.

Among the figure: body 1, admission port 101, deflation hole 102, sewing thread 2, sewing thread 3, sewing thread 4.

The specific embodiment

As Fig. 1-shown in Figure 4, the utility model has a body 1, be provided with admission port 101 in body 1 one sides, described body 1 is formed by sewing thread 2 sewing through folding by a nylon cloth sheet again, and the cloth sheet at corresponding admission port 101 places is that two-layer (the cloth sheet also can be illustrated in figure 5 as three layers herein, perhaps be more multi-layered), the two ends of the two layers of cloth sheet at corresponding admission port 101 places are by sewing thread 3 be stitched together (also can bond together), on body 1, be provided with a plurality of deflation holes 102, deflation hole 102 outer rims at corresponding admission port 101 places have been respectively equipped with the sewing thread 4 of booster action, because air pressure is excessive deflation hole 102 are torn when avoiding inflating.

Claims (3)

1, a kind of curtain type gas bag ventilation flue comprises body, is admission port in body one side, it is characterized in that: body is to be formed through folding sewing by nylon cloth sheet, and the cloth sheet at corresponding admission port place is at least two-layerly, is provided with a plurality of deflation holes on body.

2, curtain type gas bag ventilation flue according to claim 1 is characterized in that: sew or bond together in the two ends of the laminates sheet at corresponding admission port place.

3, curtain type gas bag ventilation flue according to claim 1 and 2 is characterized in that: the deflation hole outer rim at corresponding admission port place is respectively equipped with sewing thread.

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