Airbag structure and automobile

Abstract

The present invention discloses an airbag structure and a vehicle, comprising an airbag, wherein the airbag is provided with an air inlet; the airbag is provided with a left chamber and a right chamber located on both sides of the air inlet and connected to the air inlet; a middle chamber is provided in the middle of the airbag; an isolation belt is provided between the left chamber and the middle chamber, and between the right chamber and the middle chamber; the upper part of the middle chamber and the left chamber, and the upper part of the middle chamber and the right chamber are isolated by the isolation belt; the bottom of the middle chamber is connected to the left chamber and the right chamber, and the gas entering the airbag from the air inlet can pass through the left chamber and the right chamber respectively and then merge in the middle chamber. The airbag structure of the present invention can disperse the gas entering the airbag, increase the length of the gas movement path, increase the uniformity of gas movement inside the airbag, increase the stability of airbag deployment, and avoid safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an airbag structure and a vehicle. Background Art

[0002] A rear windshield airbag is a type of vehicle safety airbag. Installed on the vehicle's body behind the rear seat, it inflates when the rear end of the vehicle is impacted by a collision. The airbag module controls the inflation of the rear windshield airbag, which contacts the rear seat occupants to prevent injury. Existing rear windshield airbags are spherical or elliptical in shape. These inflates quickly, resulting in unstable deployment and increasing safety risks. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an airbag structure that can solve the technical problem: the existing airbag structure inflates quickly, resulting in unstable airbag deployment and increasing safety hazards; another purpose of the present invention is to provide a car.

[0004] In order to achieve the above object, the present invention provides an airbag structure, comprising:

[0005] an airbag, wherein the airbag is provided with an air inlet;

[0006] The airbag is provided with a left chamber and a right chamber located on both sides of the air inlet and communicating with the air inlet, and a middle chamber is provided in the middle of the airbag;

[0007] Isolation belts are provided between the left chamber and the middle chamber, and between the right chamber and the middle chamber. The upper part of the middle chamber and the left chamber, and the upper part of the middle chamber and the right chamber are isolated by the isolation belts. The bottom of the middle chamber is connected with the left chamber and the right chamber. The gas entering the airbag from the air inlet can pass through the left chamber and the right chamber respectively and then converge in the middle chamber.

[0008] As a preferred embodiment, the isolation belt includes a first isolation belt, a horizontal isolation belt, and a second isolation belt connected in sequence. The first isolation belt extends from the lower left side of the air inlet to the lower left in an arc shape and then horizontally. The horizontal isolation belt extends horizontally from left to right. The second isolation belt extends from the lower right side of the air inlet to the lower right in an arc shape and then horizontally.

[0009] The first isolation zone, the horizontal isolation zone, and one side of the second isolation zone close to the middle form the middle chamber.

[0010] As a preferred solution, the first isolation belt and the second isolation belt are arranged opposite to each other, and the ends of the first isolation belt and the ends of the second isolation belt are both provided with second positioning buckles.

[0011] As a preferred solution, a positioning portion for blocking airflow is provided in the middle of the intermediate chamber.

[0012] As a preferred solution, the positioning portion is a first positioning buckle, or:

[0013] The positioning portion is a third isolation belt extending in the left-right direction, and a first positioning buckle is provided at the end of the third isolation belt.

[0014] As a preferred solution, the third isolation zone is in the shape of an arc with an opening facing downward.

[0015] As a preferred solution, the upper portion of the middle chamber is communicated with the air inlet, and the bottom of the middle chamber is communicated with the bottom of the left chamber and the bottom of the right chamber respectively.

[0016] As a preferred solution, the isolation zone includes a fourth isolation zone and a fifth isolation zone arranged at intervals on the left and right;

[0017] The fourth isolation zone and the fifth isolation zone are both in an arc shape with the opening facing downward.

[0018] As a preferred solution, the end of the fourth isolation zone and the end of the fifth isolation zone are both installed with a second positioning buckle.

[0019] A car comprises the above-mentioned airbag structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The airbag structure of the present invention is provided with an air inlet, and an isolation belt is provided inside the airbag to divide the internal space of the airbag into a left chamber, a right chamber and a middle chamber. The upper part of the middle chamber and the left chamber, and the upper part of the middle chamber and the right chamber are isolated by isolation belts, and the bottom of the middle chamber is connected with the left chamber and the right chamber. In this way, the gas entering the airbag from the air inlet can pass through the left chamber and the right chamber respectively and then converge in the middle chamber. In this way, the gas is dispersed, the length of the gas movement path is increased, the gas movement inside the airbag is increased, the stability of the airbag deployment is increased, and safety hazards are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the airbag structure of embodiment 1 of the present invention Figure 1 ;

[0023] Figure 2 This is a schematic structural diagram of an airbag structure according to a second embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the airbag structure of embodiment 1 of the present invention Figure 2 .

[0025] In the figure, 1. airbag; 2. air inlet; 3. left chamber; 4. right chamber; 5. middle chamber; 6. isolation belt; 61. first isolation belt; 62. middle isolation belt; 63. second isolation belt; 64. fourth isolation belt; 65. fifth isolation belt; 7. first positioning buckle; 8. third isolation belt; 9. second positioning buckle. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", 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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0028] For details, please refer to the preferred embodiment 1 of the airbag structure of the present invention. Figure 1-Figure 3 As shown, it includes an airbag 1, which is specifically trapezoidal, and an air inlet 2 is opened on the upper part of the trapezoidal airbag 1; a left chamber 3 and a right chamber 4 are provided in the airbag 1 on both sides of the air inlet, which are connected to the air inlet 2, and the left chamber 3 and the right chamber 4 are connected to the air inlet 2 at the same time, and an intermediate chamber 5 is provided in the middle of the airbag 1; an isolation belt 6 is provided between the left chamber 3 and the intermediate chamber 5, and between the right chamber 4 and the intermediate chamber 5, and the specific isolation belt 6 can be a sewing thread, and the upper part of the intermediate chamber 5 and the left chamber 3, and the upper part of the intermediate chamber 5 and the right chamber 4 are isolated by the isolation belt 6, and the bottom of the intermediate chamber 5 is connected to the left chamber 3 and the right chamber 4, so that the gas entering the airbag 1 from the air inlet 2 can pass through the left chamber 3 and the right chamber 4 respectively and then converge in the intermediate chamber 5. In this application, most of the gas entering the airbag 1 from the air inlet 2 can enter the middle chamber 5 from the lower part of the left chamber 3 and the right chamber 4, which not only disperses the gas, but also increases the length of the gas movement path, increases the uniform movement of the gas inside the airbag 1, increases the stability of the deployment of the airbag 1, and avoids safety hazards.

[0029] Furthermore, in this embodiment, the isolation strip 6 includes a first isolation strip 61, a horizontal isolation strip 62, and a second isolation strip 63 connected in sequence. The first isolation strip 61 extends from the lower left side of the air inlet 2 to the left and upward in an arc shape, the horizontal isolation strip 62 extends horizontally from left to right, and the second isolation strip 63 extends from the end of the horizontal isolation strip 62 to the right and downward in an arc shape to the lower right side of the air inlet 2. The first isolation strip 61, the horizontal isolation strip 62, and the second isolation strip 63 form an intermediate chamber 5 on one side near the middle, so that the isolation strip 6 is in an arc shape with an opening facing downward. The intermediate chamber 5 is the space inside the arc-shaped isolation strip 6. The gas entering the airbag 1 from the air inlet 2 moves along the isolation strip 6. The gas entering the airbag 1 from the air inlet 2 first passes through the left chamber 3 and the right chamber 4 respectively before merging in the intermediate chamber 5. Since the upper part of the middle chamber 5 and the left chamber 3, as well as the upper part of the middle chamber 5 and the right chamber 4 are sealed and isolated by the isolation tape 6, after the gas enters the airbag 1, it is guided by the isolation tape 6, and most of the gas moves to the left chamber 3 and the right chamber 4 on both sides. In this way, most of the gas moves along the left chamber 3 or the right chamber 4 before entering the middle chamber 5. The gas movement path is longer, and on the basis of not affecting the role of the airbag 1 in protecting the crew, the stability of the deployment of the airbag 1 is increased, thereby reducing safety hazards.

[0030] The first isolation belt 61 and the second isolation belt 63 in the present application are arranged relative to each other, so that the left chamber 3 and the right chamber 4 are arranged relative to each other, and the gas can pass through the left chamber 3 and the right chamber 4 at the same time, and then can collide in the middle chamber 5, eliminating part of the impact force of the gas, so as to further increase the stability of the deployment of the airbag 1; the end of the first isolation belt and the end of the second isolation belt are both provided with a second positioning buckle for fixing the first isolation belt and the second isolation belt.

[0031] A positioning portion for blocking airflow is provided in the middle of the intermediate chamber 5 .

[0032] Among them, the positioning part is the first positioning buckle 7, such as Figure 3 As shown, a first positioning buckle 7 is sewn into the center of the intermediate chamber 5 to provide resistance to gas and enhance the smoothness of airbag 1 deployment. In this embodiment, the positioning portion is a third isolation strip 8 extending horizontally to block the impact of gas. The third isolation strip 8 can be arc-shaped or straight. Specifically, the third isolation strip is arc-shaped with a downward opening, and the first positioning buckle 7 is provided at each end of the third isolation strip 8 to enhance its connection strength.

[0033] For details, please refer to the second preferred embodiment of the airbag structure of the present invention. Figure 2The difference between Example 1 and Example 2 is that the upper part of the middle chamber 5 is connected to the air inlet, and the bottom of the middle chamber 5 is connected to the bottom of the left chamber 3 and the bottom of the right chamber 4 respectively. In this way, the gas entering the airbag 1 from the air inlet 2 is divided into three parts. The first part passes through the left chamber 3 and then enters the middle chamber 5 from the bottom of the middle chamber 5. The second part passes through the right chamber 4 and then enters the middle chamber from the bottom of the middle chamber 5. The first and second parts of the gas merge in the middle chamber 5, and the third part directly enters the middle chamber 5, wherein the third part of the gas first enters the middle chamber 5, and the first and second parts of the gas pass through the left chamber 3 and the right chamber 4 respectively and then enter the middle chamber, dispersing the gas and extending the movement path of part of the gas, thereby increasing the stability of the deployment of the airbag 1.

[0034] Specifically, the isolation zone 6 in this embodiment includes a fourth isolation zone 64 and a fifth isolation zone 65 spaced apart from each other on the left and right sides. The fourth isolation zone 64 and the fifth isolation zone 65 are both arc-shaped with openings facing downwards. The fourth isolation zone 64 and the fifth isolation zone 65 are used to guide the flow of gas.

[0035] In the embodiment of the present application, the ends of the fourth isolation 64 and the fifth isolation belt 65 are both provided with a second positioning buckle 9. The second positioning buckle 9 has the same structure as the first positioning buckle 7, and both are sewn round buckles connecting the opposite side walls of the airbag 1.

[0036] The airbag structure of the present invention is provided with an air inlet 1, and an isolation belt 6 is provided inside the airbag 1 to divide the internal space of the airbag 1 into a left chamber 3, a right chamber 4 and a middle chamber 5. In this way, the gas entering the airbag 1 from the air inlet 2 can pass through the left chamber 3 and the right chamber 4 respectively and then converge in the middle chamber 5. In this way, the gas is dispersed, the length of the gas movement path is increased, the gas movement inside the airbag 4 is increased, the stability of the deployment of the airbag 4 is increased, and safety hazards are avoided.

[0037] An embodiment of a vehicle includes an airbag structure.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An airbag structure, characterized in that: include: an airbag, wherein the airbag is provided with an air inlet; The airbag is provided with a left chamber and a right chamber located on both sides of the air inlet and communicating with the air inlet, and a middle chamber is provided in the middle of the airbag; An isolation belt is provided between the left chamber and the middle chamber, and between the right chamber and the middle chamber. The upper portion of the middle chamber and the left chamber, and the upper portion of the middle chamber and the right chamber are isolated by the isolation belt. The bottom of the middle chamber is in communication with the left chamber and the right chamber. Gas entering the airbag from the air inlet can pass through the left chamber and the right chamber respectively and then merge in the middle chamber. The upper portion of the middle chamber is in communication with the air inlet, and the bottom of the middle chamber is in communication with the bottom of the left chamber and the bottom of the right chamber respectively; The isolation zone includes a fourth isolation zone and a fifth isolation zone arranged at intervals on the left and right sides; The fourth isolation zone and the fifth isolation zone are both arc-shaped with their openings facing downwards, both ends of the fourth isolation zone and the fifth isolation zone are arc-shaped, the opening size of the fourth isolation zone is smaller than the left-right length of the fourth isolation zone, and the opening size of the fifth isolation zone is smaller than the left-right length of the fourth isolation zone; A positioning portion for blocking airflow is provided in the middle of the intermediate chamber; The positioning portion is a third isolation strip extending in the left-right direction, and a first positioning buckle is provided at the end of the third isolation strip; The third isolation zone is in the shape of an arc with an opening downward.

2. The airbag structure according to claim 1, wherein: The end of the fourth isolation belt and the end of the fifth isolation belt are both provided with a second positioning buckle.

3. A car, characterized in that: The airbag structure comprises the airbag structure according to any one of claims 1 to 2.

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