Air bag and anti-collision beam comprising same

Abstract

The utility model relates to an air bag and an anti-collision beam comprising the air bag, and the air bag comprises an air bag body which is made of plastic; a plurality of reinforcing raised lines are circumferentially arranged on the inner wall or the outer wall of the air bag body and are uniformly distributed along the inner wall or the outer wall of the air bag body, and a gap is reserved between every two adjacent reinforcing raised lines; an inflation tube is arranged at one end of the air bag body, an air bag cover is detachably arranged on the inflation tube, an inflation nozzle is arranged on the air bag cover, and the inflation nozzle is communicated with the inflation tube. The air bag body is filled with air, so that the air bag body has certain toughness, the effect of absorbing collision energy is achieved, the air bag body is made of plastic, the air bag body has certain hardness, and the energy absorption effect of the air bag body when the anti-collision beam collides is guaranteed. And a plurality of reinforcing raised lines are arranged on the circumference of the inner wall or the outer wall of the air bag body, so that the structural strength of the air bag body is improved, the fatigue resistance of the air bag body is improved, and the service life of the air bag body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile accessory, especially to an air bag for an automobile crash beam and a crash beam containing the air bag. BACKGROUND

[0002] With the continuous improvement of living standards, cars have entered thousands of households. In the case of traffic environment construction speed lagging behind the growth of cars and people's bad driving habits, the number of traffic accidents also increases. In traffic accidents, collision is the most likely form of accident. The crash beam can effectively absorb the collision energy when the car collides, minimize the damage of the impact force to the car body longitudinal beam, and protect the vehicle.

[0003] The crash beam in the prior art does not have the function of absorbing collision energy itself, but only conducts it to the energy absorption box for absorption, and the energy absorption effect is poor, and the structure is weak in bending resistance, so the crash beam is easily deformed and damaged when a collision occurs, and when the deformation is too large, it will also cause damage to other parts around the crash beam, increasing the repair time and repair cost.

[0004] Therefore, there is an urgent need for an air bag installed in the crash beam that can absorb collision energy when a car collides. SUMMARY

[0005] The utility model aims at at least one of the technical problems in the related art. To this end, the utility model provides an air bag.

[0006] The utility model solves the technical problems thereof by adopting the following technical scheme: an air bag, comprising an air bag body, the air bag body is made of plastic; the air bag body is cylindrical, and the air bag body is arranged in a circular metal pipe; the metal pipe and the crash beam body are integrally formed;

[0007] A plurality of reinforcing ribs are arranged on the circumference of the inner wall or the outer wall of the air bag body, the reinforcing ribs are uniformly distributed along the inner wall or the outer wall of the air bag body, and a spacing is left between adjacent reinforcing ribs;

[0008] One end of the air bag body is provided with an inflation pipe, the inflation pipe communicates with the inside of the air bag body, a detachable air bag cover is arranged on the inflation pipe, the air bag cover is provided with an inflation nozzle, and the inflation nozzle communicates with the inflation pipe.

[0009] In a preferred embodiment of the utility model, the air bag body and the reinforcing ribs are integrally formed.

[0010] In a preferred embodiment of the utility model, the air bag body and the reinforcing ribs are made of PET.

[0011] In one preferred embodiment of the present application, the front side wall of the metal pipe is thinner than the rear side wall of the metal pipe.

[0012] In one preferred embodiment of the present application, a reinforcing rib is arranged in each of the reinforcing protrusions.

[0013] In one preferred embodiment of the present application, the reinforcing rib is made of steel.

[0014] In one preferred embodiment of the present application, external threads are arranged on the outer wall of the inflatable pipe, internal threads are arranged in the air bag cover, and the inflatable pipe and the air bag cover are threadedly connected.

[0015] The present application is a kind of anti-collision beam, comprising the air bag according to any one of the above-mentioned schemes, wherein the anti-collision beam body is provided with a fixing buckle, the fixing buckle is provided with a mounting hole, and the inflatable pipe is connected with the air bag cover 4 after penetrating through the mounting hole.

[0016] The present application has the following advantages: the air bag is arranged in the anti-collision beam, gas is filled in the air bag body, so that the air bag body has a certain toughness, the anti-collision beam has the function of absorbing collision energy, and because the air bag body is made of plastic, the air bag body has a certain hardness, the bending resistance of the anti-collision beam is improved, the energy absorption effect of the air bag body when the anti-collision beam collides is ensured, and the anti-collision beam is not easily deformed and damaged when colliding, which avoids the damage to other parts around the anti-collision beam. The air bag body is provided with a plurality of reinforcing protrusions on the inner wall or the outer wall, which improves the structural strength of the air bag body, improves the fatigue resistance of the air bag body, and prolongs the service life of the air bag body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is a structural schematic view of the present application;

[0019] Figure 3 is a structural schematic view of the present application;

[0020] Figure 4 is a structural schematic view of the present application;

[0021] Figure 5 is a structural schematic view of the present application; Figure 1

[0022] Figure 6 is a structural schematic view of the present application; Figure 2

[0023] ​​In the diagram: 1. Airbag body; 2. Reinforcing rib; 201. Inflation tube; 3. Airbag cover; 4. Inflation nozzle; 5. Fixing buckle; 6. Screw hole; 601. Mounting hole; 7. Anti-collision beam; 8. Metal tube; 9. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] like Figures 1 to 6 An airbag is shown, including an airbag body 1, which is made of plastic; the airbag body 1 is cylindrical and is disposed inside a circular metal tube 9; the metal tube 9 and the anti-collision beam body 8 are integrally formed.

[0027] The airbag body 1 has a plurality of reinforcing ridges 2 circumferentially arranged on the inner or outer wall of the airbag body 1. The plurality of reinforcing ridges 2 are evenly distributed along the inner or outer wall of the airbag body 1, and a gap is left between adjacent reinforcing ridges 2.

[0028] An inflation tube 3 is provided at one end of the airbag body 1. The inflation tube 3 is connected to the interior of the airbag body 1. An airbag cover 4 is detachably provided on the inflation tube 3. An inflation nozzle 5 is provided on the airbag cover 4. The inflation nozzle 5 is connected to the inflation tube 3.

[0029] The air bag body in the application is made of plastic, reducing the use of metal materials, reducing weight, reducing material cost, and having corrosion resistance and easy manufacturing. In use, the air bag body 1 is arranged in the circular metal pipe 9, the metal pipe 9 and the bumper beam body 8 are integrally formed, then connected with the inflation pump and the inflation nozzle 5, the air bag body 1 is filled with gas, and the amount of gas filled in the air bag body 1 can be determined according to actual needs, and the inflation is stopped when the gas filled in the air bag body 1 reaches the predetermined volume. When the bumper beam is impacted, the air bag body in the metal pipe 9 in the bumper beam body 8 has a certain toughness, realizing the function of absorbing collision energy, and since the air bag body 1 is made of plastic and arranged in the metal pipe 9, the air bag body 1 has a certain hardness, ensuring the energy absorption effect of the air bag body 1 when the bumper beam is impacted. A plurality of reinforcing ribs 2 are arranged on the inner wall or outer wall of the air bag body 1, which is beneficial to improve the structural strength of the air bag body 1, improve the fatigue resistance of the air bag body 1, and prolong the service life of the air bag body 1. The air bag in the application can also be used as a gas cylinder of a car, making the air bag have multifunctionality.

[0030] As a preferred embodiment, the air bag body 1 and the plurality of reinforcing ribs 2 in the application are integrally formed, which is convenient to manufacture and also increases the structural strength of the air bag and prolongs its service life.

[0031] As a preferred embodiment, the air bag body 1 and the reinforcing ribs 2 are both made of PET, which reduces the overall weight of the air bag, is easy to obtain, is corrosion resistant, and reduces material cost.

[0032] As a preferred embodiment, as shown in Figure 6 As a preferred embodiment, the front side wall thickness of the metal pipe 9 is smaller than the rear side wall thickness of the metal pipe 9, and when an impact occurs, the thinner metal pipe 9 on the front side allows the air bag to contact the pressure in advance, realizing rapid energy absorption, and the thicker wall thickness of the rear side metal pipe is beneficial to provide greater support strength to the air bag, reducing damage to the car.

[0033] As a preferred embodiment, each reinforcing rib 2 is provided with a reinforcing rib 201, which increases the structural strength of the reinforcing rib 2 and prolongs the service life of the reinforcing rib 2 and the air bag. More preferably, the reinforcing rib 201 in the application is a steel bar, which supports the reinforcing rib 2, so that the reinforcing rib 2 has support and strength, and since the steel bar is arranged inside the reinforcing rib 2, the reinforcing rib 2 has a certain toughness, which is beneficial to realize the function of absorbing collision energy.

[0034] As a preferred embodiment, the outer wall of the inflation pipe is provided with external threads, the air bag cover is provided with internal threads, and the inflation pipe and the air bag cover are connected through threads, which improves the convenience of the connection between the air bag body 1 and the air bag cover 4 and improves the connection efficiency between the air bag body 1 and the air bag cover 4.

[0035] The application also discloses an anti-collision beam, the anti-collision beam body 8 is provided with a fixing buckle 6, the fixing buckle 6 is provided with a mounting hole 7, and the inflation pipe 3 is connected with the air bag cover 4 after penetrating through the mounting hole 7. The air bag in the application is used in the anti-collision beam body 8, one end of the air bag body 1 is connected with the air bag cover 3 after penetrating through the mounting hole 7 of the fixing buckle 6, the fixing buckle 6 in the application is provided with a screw hole 601, the fixing buckle 6 can be connected in the anti-collision beam body 8 through the screw penetrating through the screw hole, that is, the installation and fixation of the air bag body 1 are realized through the fixing buckle 6, and the stability and safety of the air bag body 1 in the anti-collision beam body 8 are improved.

[0036] In the description of the present specification, the description of the terms "one embodiment", "certain embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] In conclusion, although the present application has been disclosed as above with preferred embodiments, the above preferred embodiments are not used to limit the present application, and those skilled in the art can make various changes and decorations without departing from the spirit and scope of the present application, so the protection scope of the present application is subject to the scope defined by the claims.

Claims

1. An airbag, characterized in that, Includes an airbag body (1), which is made of plastic; the airbag body (1) is cylindrical and is disposed inside a circular metal tube (9); the metal tube (9) and the anti-collision beam body (8) are integrally formed; The airbag body (1) has multiple reinforcing ridges (2) circumferentially arranged on the inner or outer wall of the airbag body (1). The multiple reinforcing ridges (2) are evenly distributed along the inner or outer wall of the airbag body (1), and there is a gap between adjacent reinforcing ridges (2). An inflation tube (3) is provided on one end of the airbag body (1). The inflation tube (3) is connected to the interior of the airbag body (1). An airbag cover (4) is detachably provided on the inflation tube (3). An inflation nozzle (5) is provided on the airbag cover (4). The inflation nozzle (5) is connected to the inflation tube (3).

2. The airbag according to claim 1, characterized in that, The airbag body (1) and the multiple reinforcing ridges (2) are integrally formed.

3. The airbag according to claim 1, characterized in that, Both the airbag body (1) and the reinforcing ridge (2) are made of PET.

4. The airbag according to claim 1, characterized in that, The front wall thickness of the metal tube (9) is less than the rear wall thickness of the metal tube (9).

5. The airbag according to claim 1, characterized in that, Each of the reinforcing protrusions (2) is provided with a reinforcing rib (201).

6. The airbag according to claim 5, characterized in that, The reinforcing bar (201) is a steel bar.

7. The airbag according to claim 1, characterized in that, The inflation tube (3) has an external thread on its outer wall and the airbag cover has an internal thread. The inflation tube (3) and the airbag cover (4) are connected by threads.

8. A crash beam, characterized in that, The airbag includes the airbag according to any one of claims 1-7, wherein the anti-collision beam body (8) is provided with a fixing buckle (6), the fixing buckle (6) is provided with a mounting hole (7), and the inflation tube (3) passes through the mounting hole (7) and is connected to the airbag cover (4).

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