Airbag housing assembly and vehicle

Abstract

The utility model relates to an air bag shell assembly and car, air bag shell assembly includes shell, and the shell cover is connected with shell and is fixedly connected with the installation ring of air bag, and the installation ring is detachably fixed in the shell, and the lateral wall of shell is provided with a plurality of anti -unthreading mechanism, and the anti -unthreading mechanism is used for clamping installation ring after installation ring installation in place, the utility model discloses the setting improves the fixed reliability of installation ring and air bag, and the occurrence of air bag is separated from shell when air bag pops out is reduced, solve the problem that air bag separates from shell when air bag pops out due to the air bag is not firm enough in the prior art, and the setting of a plurality of anti -unthreading mechanism can disperse the tension of air bag pop -out instant to multiple fixed points.

Description

Technical Field

[0001] This utility model belongs to the field of automotive safety device technology, specifically relating to an airbag housing assembly and an automobile. Background Technology

[0002] The airbag housing assembly is a component used to install and house the airbag. Its structural design must ensure that the airbag is reliably fixed in the non-operational state and can withstand the huge instantaneous tensile force generated by the airbag deployment when the airbag is triggered to deploy.

[0003] Existing airbag shells are secured with bolts or clips. This method has a limited number of fixing points and causes stress concentration. When the airbag deploys, the huge tensile force is concentrated on a few fixing points, which can lead to the failure or damage of the fixing points. Ultimately, this causes the airbag to separate from the shell during deployment, and the separation of the airbag from the shell seriously affects the effectiveness of the airbag's safety protection.

[0004] Furthermore, as a safety component, airbags need to be inspected or replaced regularly. The existing fixing structure is designed primarily for the stability of the fixation. This makes the process of releasing the locking mechanism cumbersome when the airbag needs to be disassembled for maintenance. Operators need to spend a lot of time disassembling multiple fasteners or releasing complex locks, which reduces the efficiency of maintenance work and increases the difficulty of operation during maintenance.

[0005] Therefore, this utility model proposes an airbag shell assembly to overcome the shortcomings of the prior art. Utility Model Content

[0006] In order to solve all or part of the above problems, the present invention aims to provide an airbag housing assembly and an automobile. The airbag housing assembly of the present invention improves the fixing reliability of the mounting ring and the airbag by setting an anti-loosening mechanism, and the setting of several anti-loosening mechanisms can disperse the pulling force of the airbag at the moment of deployment to multiple fixing points.

[0007] According to one aspect of the present invention, an airbag housing assembly is provided, including an outer shell, a cover connected to the outer shell, and a mounting ring fixedly connected to the airbag. The mounting ring is detachably fixed inside the outer shell, and a plurality of anti-loosening mechanisms are provided on the side wall of the outer shell. The anti-loosening mechanisms are used to clamp the mounting ring after it is installed in place.

[0008] Furthermore, all of the aforementioned anti-loosening mechanisms have the same structure. Taking any one of the anti-loosening mechanisms as an example, it includes a fixing block fixedly connected to the outer shell. The fixing block has a groove extending from the side near the airbag into the fixing block. An anti-loosening block is slidably connected in the groove. A first spring is provided between the fixing block away from the inner wall of the airbag and the anti-loosening block. The first spring is configured to cause the anti-loosening block to block the loosening direction of the mounting ring after the mounting ring is installed in place. The anti-loosening block is provided with a guide slope to facilitate the mounting ring to squeeze the anti-loosening block.

[0009] Furthermore, the anti-loosening block is rotatably connected to a pull rod, which extends along the length of the slide groove to the side away from the anti-loosening block and extends beyond the fixed block. A limit block is fixedly connected to the outer wall of the pull rod, and a mating groove is provided on the side wall of the fixed block away from the anti-loosening block for the limit block to pass through.

[0010] Furthermore, a handle is fixedly connected to one end of the pull rod that extends out of the fixing block.

[0011] Furthermore, the inner wall of the fixing block is provided with a limiting groove that communicates with the sliding groove and is parallel to the extension direction of the sliding groove. The anti-loosening block is fixedly connected to a limiting slider, which is located in the limiting groove. Furthermore, the rear side of the cover is rotatably connected to the rear side of the outer shell via a connecting pin, and the front side of the cover is connected to the front side of the outer shell via a locking mechanism.

[0012] Furthermore, the engaging mechanism includes a positioning frame and a locking block. The positioning frame is fixedly connected to the upper end of the outer shell. A locking block groove is provided inside the shell cover. A locking block is slidably connected in the locking block groove. A second spring is fixedly connected between the bottom wall of the locking block groove and the locking block. A positioning groove is provided on the positioning frame. The second spring is configured to enable the locking block to engage in the positioning groove.

[0013] Furthermore, the cover has a limiting groove that communicates with the slotted block groove and is parallel to the extending direction of the slotted block groove. A limiting slider two is fixedly connected to the side of the slotted block away from the positioning groove, and the limiting slider two is located in the limiting groove. The cover has a positioning frame groove that cooperates with the positioning frame, and the part of the slotted block that can be engaged in the positioning groove is hemispherical. Furthermore, it also includes a fixed base, a sealing mounting base, and screws. The sealing mounting base is fixedly connected to the bottom inner side of the housing. The mounting ring is slidably connected to the inner wall of the sealing mounting base. The fixed base is inserted into the inner wall of the sealing mounting base. The screw passes through the housing and is threadedly connected to the fixed base. The bottom of the airbag is fixedly connected to the top of the fixed base.

[0014] This utility model also provides a car, including a car body, on which the airbag housing assembly described in any one of the above-mentioned claims is provided.

[0015] As can be seen from the above technical solution, the airbag housing assembly and automobile provided by this utility model have the following beneficial effects: This invention improves the reliability of fixing the mounting ring and airbag by setting an anti-loosening mechanism, reducing the occurrence of the airbag detaching from the shell when it is deployed, and solving the problem of the airbag separating from the shell when it is deployed due to insufficient airbag fixing in the prior art; moreover, the setting of several anti-loosening mechanisms can distribute the pulling force of the airbag at the moment of deployment to multiple fixing points.

[0016] The first spring of this invention can drive the anti-loosening block to pop out and hold the mounting ring after the mounting ring that is fixedly connected to the airbag is installed in place, thereby achieving the purpose of firmly fixing the airbag, and the setting of the guide slope of the anti-loosening block will not affect the smooth installation of the mounting ring.

[0017] The pull rod, limit block, and mating groove of this utility model are designed to pull the anti-loosening block away from the loosening direction of the mounting ring and to fix the anti-loosening block in that position, thereby making the airbag disassembly process more convenient and labor-saving, improving the maintainability and testing efficiency of the device, and solving the problem that the locking mechanism is complicated, time-consuming and labor-intensive to release when the airbag assembly needs to be disassembled and tested in the prior art. Attached Figure Description

[0018] Figure 1 This is a perspective view of the airbag housing assembly according to an embodiment of the present utility model; Figure 2 This is an exploded view of the fixing base portion of the airbag housing assembly according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the bottom of the airbag housing assembly according to an embodiment of the present invention; Figure 4 This is an exploded view of the engagement mechanism of the airbag housing assembly according to an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the anti-loosening mechanism of the airbag housing assembly according to an embodiment of the present invention. Detailed Implementation

[0019] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an airbag housing assembly and its relation to a vehicle.

[0020] like Figure 1 , Figure 2 As shown, an airbag housing assembly according to an embodiment of the present invention is illustrated, including an outer shell 1, a shell cover 4 connected to the outer shell 1, and a mounting ring 6 fixedly connected to the airbag 5. The mounting ring 6 is detachably fixed inside the outer shell 1. A plurality of anti-loosening mechanisms 2 are provided on the side wall of the outer shell 1. The anti-loosening mechanisms 2 are used to clamp the mounting ring 6 after it is installed in place.

[0021] In this embodiment, several anti-loosening mechanisms 2 are provided on the side wall of the outer shell 1. These anti-loosening mechanisms 2 are used to clamp the mounting ring 6 after it is installed in place. This embodiment improves the fixing reliability of the mounting ring and the airbag 5, reduces the occurrence of the airbag detaching from the outer shell 1 when it is deployed, and solves the problem of the airbag separating from the shell when it is deployed due to insufficient fixing of the airbag in the prior art. Moreover, the setting of several anti-loosening mechanisms 2 can distribute the pulling force to multiple fixing points.

[0022] Regarding the anti-loosening mechanism 2, all anti-loosening mechanisms 2 have the same structure. Taking any one anti-loosening mechanism 2 as an example, such as... Figure 5 As shown, it includes a fixing block 201 fixedly connected to the outer shell 1. The fixing block 201 has a groove extending from the side near the airbag 5 into the fixing block 201. An anti-loosening block 202 is slidably connected in the groove. A first spring 203 is provided between the inner wall of the fixing block 201 away from the airbag 5 and the anti-loosening block 202. The first spring 203 is configured to block the anti-loosening block 202 in the loosening direction of the mounting ring 6 after the mounting ring 6 is installed in place. The anti-loosening block 202 is provided with a guide slope to facilitate the mounting ring 6 to squeeze the anti-loosening block 202.

[0023] Specifically, the anti-loosening mechanism 2 of this embodiment includes a fixing block 201, an anti-loosening block 202, and a first spring 203. The fixing block 201 is fixedly connected to the outer shell 1. A groove is provided on the fixing block 201 extending from the side near the airbag 5 into the fixing block 201. The anti-loosening block 202 is disposed in the groove and can slide in the groove. The first spring 203 is disposed between the inner wall of the fixing block 201 away from the airbag 5 and the anti-loosening block 202.

[0024] For example, the anti-loosening block 202 is configured such that when the anti-loosening block 202 blocks the loosening direction of the mounting ring 6, a part of the anti-loosening block 202 is located in the aforementioned groove, and the other part of the anti-loosening block 202 extends out of the groove to block the loosening direction of the mounting ring 6.

[0025] In practical use, during the process of inserting the airbag 5 and the mounting ring 6 into the outer shell 1, the mounting ring 6, which is connected to the bottom of the airbag 5, is first inserted into the inner wall of the outer shell 1. Since the outer shell 1 is fixedly connected to the four sides by fixing blocks 201, during the insertion process, the guide slope of the anti-loosening block 202 in the fixing block 201 is squeezed downward by the mounting ring 6. This squeezing causes the anti-loosening block 202 to move along the groove away from the airbag 5 and the mounting ring 6. Since a first spring 203 is provided between the fixing block 201 away from the inner wall of the airbag 5 and the anti-loosening block 202, Therefore, during the movement of the anti-loosening block 202, the first spring 203 is compressed, causing the first spring to gradually increase in compression. When the airbag 5 and the mounting ring 6 are installed in place, the mounting ring 6 is located below the anti-loosening block 202. Therefore, the mounting ring no longer compresses the anti-loosening block 202. At this time, the anti-loosening block 202 returns to its original position under the elastic force of the first spring 203, blocking the loosening direction of the mounting ring 6. This prevents the mounting ring 6 from popping out with the airbag under the tension of the airbag 5 during the airbag's deployment, thus achieving the purpose of more firmly fixing the airbag and preventing it from loosening.

[0026] The anti-loosening block 202 is rotatably connected to a pull rod 205. The pull rod 205 extends along the length of the slide groove to the side away from the anti-loosening block 202 and extends out of the fixed block 201. A limit block 206 is fixedly connected to the outer wall of the pull rod 205. The side wall of the fixed block 201 away from the anti-loosening block 202 is provided with a mating groove 2011 for the limit block 206 to pass through.

[0027] In this embodiment, the pull rod 205, the limiting block 206, and the mating groove 2011 are provided to pull the anti-loosening block 202 away from the loosening direction of the mounting ring 6 and to fix the anti-loosening block 202 in this position so as to facilitate the detection of the airbag 5.

[0028] Specifically, when the airbag 5 needs to be tested, the pull rod 205, which is rotatably connected to the anti-loosening block 202, is pulled outwards, causing the anti-loosening block 202 to slide away from the airbag 5 and the mounting ring 6 within the groove. During this process, the first spring 203 is gradually compressed, and the anti-loosening block 202 moves to a state where the mounting ring 6 can disengage. Since the limiting block 206 is fixedly connected to the outer wall of the pull rod 205, the limiting block 206 will move outwards along with the pull rod 205 during this process. Finally, the pull rod 205 is pulled until the limiting block 206 moves to the outside of the fixed block 201. After pulling is completed, the pull rod 205 is rotated. Pull rod 205 drives limit block 206 to rotate together; finally, pull rod 205 is released. After pull rod 205 is released, the inner side of limit block 206 is in contact with the outer side of fixing block 201. At this time, fixing block 201 plays the role of limiting the rebound of pull rod 205, limit block 206 and anti-loosening block 202, so that the first spring 203 is always in a compressed state, so that pull rod 205 is locked, and anti-loosening block 202 is kept in a state that allows mounting ring 6 to be disengaged; repeat the previous operation to keep all anti-loosening blocks 202 in a state that allows mounting ring 6 to be disengaged; finally, remove mounting ring 6 from the outer shell 1 for testing.

[0029] Regarding the limiting block 206, in a specific implementation, for example, one limiting block 206 is fixedly connected to the upper and lower sides of the outer wall of the pull rod 205 respectively. Correspondingly, the side wall of the fixing block 201 away from the anti-loosening block 202 needs to have mating grooves for the two limiting blocks 206 to pass through. Furthermore, in a specific implementation, it is also necessary to avoid interference between the first spring 203 and the limiting block 206. That is, for the case where one limiting block 206 is fixedly connected to the upper and lower sides of the outer wall of the pull rod 205 respectively, the first spring 203 is, for example, placed between the fixing block 201 and the anti-loosening block 202 on the front and rear sides of the pull rod 205.

[0030] To facilitate pulling the lever 205, a handle can be fixedly connected to the end of the lever 205 that extends out of the fixing block 201.

[0031] The inner wall of the fixing block 201 is provided with a limiting groove that is connected to the sliding groove and parallel to the extension direction of the sliding groove. The anti-loosening block 202 is fixedly connected to the limiting slider 204, which is located in the limiting groove.

[0032] In this embodiment, the setting of the limiting groove and the limiting slider 204 serves to guide and restrict the sliding of the anti-loosening block.

[0033] The rear side of the cover 4 is rotatably connected to the rear side of the outer shell 1 via a connecting pin, and the front side of the cover 4 is connected to the front side of the outer shell 1 via a locking mechanism 3.

[0034] In this embodiment, the locking mechanism 3 is used to lock the outer shell 1 and the cover 4 together.

[0035] Among them, such as Figure 4 As shown, the locking mechanism 3 includes a positioning frame 301 and a locking block 304. The positioning frame 301 is fixedly connected to the upper end of the outer shell 1. A locking block groove is provided inside the shell cover 4. The locking block 304 is slidably connected in the locking block groove. A second spring 303 is fixedly connected between the bottom wall of the locking block groove and the locking block 304. A positioning groove 302 is provided on the positioning frame 301. The second spring 303 is configured to enable the locking block 304 to be locked into the positioning groove 302.

[0036] When the cover 4 needs to be closed, the locking mechanism 3 comes into play. Since the second spring 303 is located on the inner wall of the cover 4, the front end of the second spring 303 is fixedly connected to the locking block 304. The positioning frame 301 has a positioning groove 302 on its rear side. Under the elastic force of the second spring 303, the locking block 304 is pushed into the positioning groove 302, thus completing the locking between the high-strength outer shell 1 and the cover 4.

[0037] The cover 4 has a limiting groove that communicates with the card block groove and is parallel to the extension direction of the card block groove. The card block 304 is fixedly connected to the side away from the positioning groove 302 by a limiting slider 305, which is located in the limiting groove.

[0038] In this embodiment, the limiting slider 305 and the limiting groove are designed to guide and restrict the sliding of the locking block 304. During the operation of the locking mechanism 3, the limiting slider 305 slides within the limiting groove of the cover 4.

[0039] The cover 4 has a positioning frame groove that mates with the positioning frame 301. This positioning frame groove is used to hide the positioning frame 301 inside the cover 4. Correspondingly, the part of the locking block 304 that can be locked into the positioning groove 302 is hemispherical. This hemispherical design of the locking block makes it easier to move the locking block 304 out of the positioning groove 302 by squeezing the cover 4 during the process of removing the cover 4. In specific implementation, for example, the part of the locking block 304 that can be locked into the positioning groove 302 can be designed as hemispherical or semi-ellipsoidal.

[0040] When it is necessary to open the cover 4, first remove the connecting pin between the rear side of the cover 4 and the rear side of the outer shell 1. Then, move the cover upwards away from the outer shell 1. At this time, the positioning groove 302 of the positioning frame 301 begins to press the locking block 304, causing the locking block to gradually compress the second spring 303 and move away from the positioning frame 301. Finally, the locking block 304 exits the positioning groove 302 of the positioning frame 301, and the cover 4 is opened. After removing the cover 4, the airbag can be tested as needed.

[0041] Among them, such as Figure 2 , Figure 3 As shown, it also includes a fixed base 7, a sealing mounting base 8, and a screw 9. The sealing mounting base 8 is fixedly connected to the bottom inner side of the housing 1. The mounting ring 6 is slidably connected to the inner wall of the sealing mounting base 8. The fixed base 7 is inserted into the inner wall of the sealing mounting base 8. The screw 9 passes through the housing 1 and is threadedly connected to the fixed base 7. The bottom of the airbag 5 is fixedly connected to the top of the fixed base 7.

[0042] Specifically, the airbag 5 is located inside the outer shell 1. The bottom of the airbag 5 is fixedly connected to the mounting ring 6. The shell cover 4 is connected to the outer shell 1 through a connecting pin and a locking mechanism 3. The shell cover 4 is connected to the outer shell 1 to close the outer shell 1. The bottom inner side of the outer shell 1 is fixedly connected to the sealing mounting seat 8. The inner wall of the sealing mounting seat 8 is slidably connected to the mounting ring 6. The fixing base 7 is inserted into the inner wall of the sealing mounting seat 8. The screw 9 passes through the outer shell 1 and is threadedly connected to the fixing base 7. The bottom periphery of the airbag 5 is fixedly connected to the top periphery of the fixing base 7. After tightening the screw 9, the airbag 5 is fixed.

[0043] For the airbag housing assembly of this utility model embodiment, when it is necessary to test the airbag: first, remove the housing cover. The method of removing the housing cover has been described above and will not be repeated here; then, operate each anti-loosening mechanism 2 pull rod one by one so that each anti-loosening block 202 is kept in a state that allows the mounting ring 6 to be disengaged; finally, remove each screw 9 that is threaded to the fixed base 7.

[0044] This embodiment of the utility model improves the fixing reliability of the mounting ring and airbag 5 by setting the anti-loosening mechanism 2, reduces the occurrence of the airbag detaching from the outer shell 1 when it pops out, and solves the problem of the airbag separating from the shell when it pops out due to insufficient fixing of the airbag in the prior art; moreover, the setting of several anti-loosening mechanisms 2 can distribute the pulling force of the airbag at the moment of popping out to multiple fixing points, making the fixing more secure and reliable.

[0045] In this embodiment, the first spring 203 can drive the anti-loosening block 202 to pop out and hold the mounting ring after the mounting ring that is fixedly connected to the airbag is installed in place, thereby achieving the purpose of firmly fixing the airbag, and the setting of the guide slope of the anti-loosening block 202 will not affect the smooth installation of the mounting ring.

[0046] In this embodiment, the pull rod 205, the limiting block 206, and the mating groove are designed to pull the anti-loosening block 202 away from the loosening direction of the mounting ring 6 and to fix the anti-loosening block 202 in that position. This makes the airbag disassembly process more convenient and labor-saving, improves the maintainability and testing efficiency of the device, and solves the problem in the prior art that the locking mechanism is complicated, time-consuming, and labor-intensive to release when the airbag assembly needs to be disassembled for testing.

[0047] This utility model embodiment also provides a car, which includes a car body and an airbag housing assembly of any of the above embodiments is provided on the car body.

[0048] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0049] Furthermore, the terms "a," "two," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An airbag housing assembly, comprising an outer shell (1), a shell cover (4) connected to the outer shell (1), and a mounting ring (6) fixedly connected to an airbag (5), wherein the mounting ring (6) is detachably fixed inside the outer shell (1), characterized in that, The outer casing (1) is provided with a plurality of anti-loosening mechanisms (2), which are used to clamp the mounting ring (6) after the mounting ring (6) is installed in place.

2. The airbag housing assembly according to claim 1, characterized in that, All of the anti-loosening mechanisms (2) have the same structure. Taking any one of the anti-loosening mechanisms (2) as an example, it includes a fixing block (201) fixedly connected to the outer shell (1). The fixing block (201) has a groove extending from the side near the airbag (5) into the fixing block (201). An anti-loosening block (202) is slidably connected in the groove. A first spring (203) is provided between the inner wall of the fixing block (201) away from the airbag (5) and the anti-loosening block (202). The first spring (203) is configured to block the anti-loosening block (202) in the loosening direction of the mounting ring (6) after the mounting ring (6) is installed in place. The anti-loosening block (202) has a guide slope that facilitates the mounting ring (6) to squeeze the anti-loosening block (202).

3. The airbag housing assembly according to claim 2, characterized in that, The anti-loosening block (202) is rotatably connected to a pull rod (205). The pull rod (205) extends along the length of the groove to the side away from the anti-loosening block (202) and extends beyond the fixed block (201). A limit block (206) is fixedly connected to the outer wall of the pull rod (205). The side wall of the fixed block (201) away from the anti-loosening block (202) has a mating groove (2011) for the limit block (206) to pass through.

4. The airbag housing assembly according to claim 3, characterized in that, A handle is fixedly connected to one end of the pull rod (205) that extends out of the fixing block (201).

5. The airbag housing assembly according to claim 2, characterized in that, The inner wall of the fixing block (201) is provided with a limiting groove that communicates with the sliding groove and is parallel to the extension direction of the sliding groove. The anti-loosening block (202) is fixedly connected to a limiting slider (204), and the limiting slider (204) is located in the limiting groove.

6. The airbag housing assembly according to claim 1, characterized in that, The rear side of the cover (4) is rotatably connected to the rear side of the outer shell (1) by a connecting pin, and the front side of the cover (4) is connected to the front side of the outer shell (1) by a locking mechanism (3).

7. The airbag housing assembly according to claim 6, characterized in that, The locking mechanism (3) includes a positioning frame (301) and a locking block (304). The positioning frame (301) is fixedly connected to the upper end of the outer shell (1). A locking block groove is provided in the shell cover (4). The locking block (304) is slidably connected in the locking block groove. A second spring (303) is fixedly connected between the bottom wall of the locking block groove and the locking block (304). A positioning groove (302) is provided on the positioning frame (301). The second spring (303) is configured to enable the locking block (304) to be locked into the positioning groove (302).

8. The airbag housing assembly according to claim 7, characterized in that, The cover (4) has a limiting groove that communicates with the card block groove and is parallel to the extension direction of the card block groove. The card block (304) is fixedly connected to the side away from the positioning groove (302) by a limiting slider (305), which is located in the limiting groove. The cover (4) has a positioning frame groove that cooperates with the positioning frame (301). The part of the card block (304) that can be inserted into the positioning groove (302) is hemispherical.

9. The airbag housing assembly according to claim 1, characterized in that, It also includes a fixed base (7), a sealing mounting base (8) and a screw (9). The sealing mounting base (8) is fixedly connected to the bottom inner side of the outer shell (1). The mounting ring (6) is slidably connected to the inner wall of the sealing mounting base (8). The fixed base (7) is inserted into the inner wall of the sealing mounting base (8). The screw (9) passes through the outer shell (1) and is threadedly connected to the fixed base (7). The bottom of the airbag (5) is fixedly connected to the top of the fixed base (7).

10. A car, characterized in that, The vehicle body includes an airbag housing assembly as described in any one of claims 1-9.

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