CN219257275U - Connecting structure of safety airbag and retaining ring - Google Patents

Abstract

The utility model relates to a connecting structure of an airbag bag and a retaining ring, which comprises the following components: a gas generator for filling the inside of the airbag bag with a gas; the retaining ring is sleeved on the periphery of the gas generator and used for fixing the gas generator; the top of the air bag connecting piece is used for being connected with an air bag of the safety air bag, and the air bag connecting piece is sleeved on the periphery of the retaining ring; the positioning pins sequentially penetrate through the side walls of the air bag connecting piece and the retaining ring and are connected with the gas generator; and the shell is sleeved on the periphery of the gas generator, the retaining ring and the air bag connecting piece, the inner side wall of the shell is abutted with the free end of the locating pin, and the shell is used for installing the whole of the gas generator, the retaining ring and the air bag connecting piece. The connecting structure of the airbag bag and the retaining ring can improve the installation convenience and reliability of the connecting structure of the airbag bag and the retaining ring.

Description

Connecting structure of safety airbag and retaining ring

Technical Field

The utility model belongs to the technical field of passive safety of automobiles, and particularly relates to a connecting structure of an airbag and a retaining ring.

Background

Automotive safety technologies are classified into active safety technologies and passive safety technologies. Active safety technology is technology for avoiding accidents; the passive safety technology is a technology for protecting personnel, vehicles and traffic facilities at the place where the accident occurs in the accident process. The strategy of disposing an airbag on an automobile is a passive safety technical means, when a collision accident occurs to the automobile, a sensor detects the collision accident and excites a gas generator, and fuel in the gas generator is ignited to generate gas, so that an airbag of an airbag module is inflated, and the airbag provides buffering for passengers. The retaining ring protects the air bag, and the retaining ring is connected with the air bag and the gas generator into a whole through the connecting structure to form the air bag module.

The air bag is provided with an assembly hole, and in the assembly process of the air bag module, the retaining ring firstly penetrates through the assembly hole, so that the retaining ring enters the air bag, and the retaining ring is connected with the air bag and the gas generator in a threaded connection mode. In the driving process, the bolts possibly generate load deflection due to vibration, so that nuts are loosened, when the air bag module is assembled, the retaining ring with the bolts is not easy to penetrate through the assembly holes, if the bolts are taken down, after the retaining ring penetrates through the assembly holes, the bolts are not convenient to install, the bolts easily fall into the air bags due to misoperation, and in the installation process, the bolts are also easy to wear on screw teeth.

Disclosure of Invention

In order to solve all or part of the above problems, an object of the present utility model is to provide a connection structure of an airbag bag and a retainer ring, which improves the convenience and reliability of installation of the connection structure of the airbag bag and the retainer ring.

The application provides a connection structure of air bag and retainer ring of air bag, includes: a gas generator for filling the inside of the airbag bag with a gas; the retaining ring is sleeved on the periphery of the gas generator and used for fixing the gas generator; the top of the air bag connecting piece is used for being connected with an air bag of the safety air bag, and the air bag connecting piece is sleeved on the periphery of the retaining ring; the positioning pins sequentially penetrate through the side walls of the air bag connecting piece and the retaining ring and are connected with the gas generator; and the shell is sleeved on the periphery of the gas generator, the retaining ring and the air bag connecting piece, the inner side wall of the shell is abutted with the free end of the locating pin, and the shell is used for installing the whole of the gas generator, the retaining ring and the air bag connecting piece.

In some embodiments, the retaining ring comprises an annular side wall and a bottom wall, wherein a mounting hole and a limit frame uniformly distributed on the bottom wall around the mounting hole are formed in the middle of the bottom wall; the gas generator comprises a mounting bottom plate and a generator body fixed on the mounting bottom plate, wherein the mounting bottom plate is uniformly provided with insert structures which are in one-to-one correspondence with the limiting frames around the generator body, the insert structures are used for forming clamping connection with the limiting frames, and the generator body is arranged in the mounting holes; the air bag connecting piece comprises an assembling annular wall and a bottom frame fixedly connected to the inner side of the assembling annular wall, and an opening for inserting the retaining ring is formed in the bottom frame and is located between the bottom wall and the mounting bottom plate. Wherein, be formed with the pilot hole on the assembly annular wall, be used for setting up the locating pin in the pilot hole, all be formed with the through-hole corresponding with the pilot hole on annular lateral wall, spacing frame and the inserted sheet structure, the locating pin sets up to can pass the through-hole in proper order to with inserted sheet structure fixed connection.

In some embodiments, the insert structure has a downwardly disposed catch plate formed thereon, with a protrusion formed on one side of the catch plate; the side wall of the limit frame is provided with a groove which corresponds to the bulge and is used for mutually clamping the inserting sheet structure and the limit frame, wherein the bottom wall is provided with a slot which corresponds to the inserting sheet structure, and the slot is configured to accommodate the clamping plate and the bulge to pass through so that the bulge can be clamped with the groove.

In some embodiments, the retaining ring further comprises a spacing tube connected to the mounting hole and extending upward, an inner side wall of the top opening of the spacing tube being formed with an inner rim structure; the gas generator also comprises an elastic part sleeved on the generator body, and the elastic part is elastically abutted between the inner edge structure and the mounting bottom plate.

In some embodiments, an air outlet is formed in the side wall of the generator body, and the air outlet is located above the limiting tube. Wherein the annular sidewall is configured to surround the air outlet on the generator body.

In some embodiments, the retaining ring further comprises: a mounting groove formed at an outer bottom position of the annular sidewall; the positioning block is arranged in the mounting groove in a sliding manner; the spring is arranged in the mounting groove and elastically abuts against the bottom of the mounting groove and the positioning block; the inner bottom of the assembly annular wall is provided with clamping grooves corresponding to the positioning blocks one by one.

In some embodiments, a position control assembly is also included for adjusting the position of the locating pin.

In some embodiments, the outer end of the assembly hole is formed with an outward expansion groove, the inner end of the assembly hole is fixed with a first stop block, the control component comprises an end cap and a first strip-shaped groove, and the end cap is arranged at one end of the positioning pin far away from the generator body and is positioned in the outward expansion groove; the first strip-shaped groove is sleeved on the positioning pin and is in sliding connection with the first stop block.

In some embodiments, the end cap is made of an elastic material, the thickness of the end cap is larger than the depth of the outward expansion groove, the outer diameter of the end face of the end cap, which is close to the positioning pin, is smaller than the outer diameter of the outward expansion groove, and the area of the end face of the end cap, which is close to the positioning pin, is larger than the cross-sectional area of the positioning pin.

In some embodiments, the control assembly comprises a second bar-shaped groove, a second stop block and an extension pipe, wherein the second stop block is fixedly connected in the assembly hole, and meanwhile, the second stop block is connected with one end, close to the generator body, of the positioning pin through an elastic piece; the second strip-shaped groove is sleeved on the positioning pin and is in sliding connection with the second stop block; one end of the extension tube is fixedly connected in the assembly hole and corresponds to the positioning pins one by one, and the extension tube is in sliding connection with the positioning pins; the annular side wall is provided with a concave part corresponding to the extension pipe, and the concave part is used for accommodating the extension pipe.

The connecting structure of the airbag and the retaining ring of the embodiment of the utility model has the following advantages: after the retainer ring is obliquely penetrated through the bottom frame, the retainer ring is automatically locked in the air bag connecting piece through the positioning block matching spring, the clamping groove and the bottom frame, and meanwhile, the bottom wall of the retainer ring is penetrated through the inserting piece structure to be clamped with the limiting frame, the elastic component provides prestress, so that the gas generator and the retainer ring are connected with the air bag connecting piece into a whole, and the reliability of connection between the gas generator and the retainer ring and the air bag connecting piece is enhanced through the positioning pin matching limiting frame and the shell. In addition, the positioning pin is integrated on the air bag connecting piece through the position control component, so that the connection reliability of the retaining ring, the gas generator and the air bag is improved while the assembly convenience of the connecting structure is ensured.

Drawings

FIG. 1 is a schematic view of a first embodiment of a connection structure of an airbag bag and a retainer ring according to an embodiment of the present utility model;

FIG. 2 is a schematic exploded view of the attachment structure of the airbag bag and retainer ring of FIG. 1;

FIG. 3 is a cross-sectional view of an assembled retaining ring and airbag connection of an embodiment of the present utility model;

FIG. 4 is an assembled cross-sectional view of a retaining ring and air bag connection of an embodiment of the present utility model from another perspective;

FIG. 5 is a schematic view of a gas generator according to an embodiment of the present utility model;

FIG. 6 is a schematic illustration of the assembly process of a retaining ring and airbag connection of an embodiment of the present utility model;

FIG. 7 is a schematic cross-sectional view of a second embodiment of the attachment structure of an airbag bag and retainer ring of an embodiment of the present utility model, showing a schematic top view of a position control module;

FIG. 8 is an enlarged schematic view of the structure A of the attachment of the airbag bag to the retainer ring shown in FIG. 7;

FIG. 9 is a schematic view of a third embodiment of a connection structure of an airbag bag and a retainer ring according to an embodiment of the present utility model;

FIG. 10 is a schematic view of an exploded construction of a third embodiment of the attachment structure of the airbag bag and retainer ring shown in FIG. 9;

FIG. 11 is a schematic cross-sectional structural view of the attachment structure of the airbag bag and retainer ring of FIG. 9, showing a schematic top view of the position control module;

fig. 12 is an enlarged schematic view of the structure at B of the connection structure of the airbag bag and the retainer ring shown in fig. 11.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, a connection structure of an airbag bag and a retainer ring according to the present utility model will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a first embodiment of a connection structure 100 of an airbag bag and a retainer ring according to an embodiment of the present utility model; fig. 2 is an exploded structural view of the connection structure 100 of the airbag bag and the retainer ring shown in fig. 1. As shown in connection with fig. 1 and 2, the airbag pouch and retainer ring attachment structure 100 includes: a gas generator 2 for filling the inside of the airbag bag with a gas; a retaining ring 1, which is sleeved on the periphery of the gas generator 2 and is used for fixing the gas generator 2; the top of the air bag connecting piece 3 is used for being connected with an air bag of the safety air bag, and the air bag connecting piece 3 is sleeved on the periphery of the retaining ring 1; the positioning pins 4 sequentially penetrate through the side walls of the air bag connecting piece 3 and the retaining ring 1 and are connected with the gas generator 2; and a casing 5 which is sleeved on the periphery of the gas generator 2, the retaining ring 1 and the air bag connecting piece 3, wherein the inner side wall of the casing 5 is abutted with the free end of the positioning pin 4, and the casing 5 is used for installing the whole of the gas generator 2, the retaining ring 1 and the air bag connecting piece 3.

In the present application, the air bag connector 3 is used for connecting an air bag of an air bag, and the air bag can be connected with the air bag connector 3 by means of bonding or sewing. Compared with the prior art, the screw bolt assembling device has the advantages that the use of the screw bolt is reduced, and therefore the problems of loosening, poor convenience, assembly difficulty and screw tooth abrasion caused by the screw bolt in the prior art can be effectively avoided. The utility model provides a through direct connection retainer ring 1, air pocket connecting piece 3, gas generator 2 to listening locating pin 4 and fixing, finally wholly installing in casing 5, still improved the mounting convenience and the reliability of the connection structure 100 of air bag air pocket and retainer ring.

Referring to fig. 3 to 6, the retaining ring 1 may include an annular side wall 101 and a bottom wall 113, wherein a mounting hole 114 and a limiting frame 102 uniformly distributed on the bottom wall 113 around the mounting hole 114 are formed in the middle of the bottom wall 113; the gas generator 2 may include a mounting base 202 and a generator body 201 fixed on the mounting base 202, wherein insert structures 203 corresponding to the limiting frames 102 one by one are uniformly distributed on the mounting base 202 around the generator body 201, the insert structures 203 are used for forming a snap connection with the limiting frames 102, and the generator body 201 is disposed in the mounting hole 114; the air bag connector 3 may include a fitting annular wall 301 and a bottom frame 302 fixedly attached to the inner side of the fitting annular wall 301, the bottom frame 302 having an opening formed thereon for inserting the retainer ring 1 and being located between the bottom wall 113 and the mounting baseplate 202. Wherein, the assembly annular wall 301 is formed with an assembly hole 303, a positioning pin 4 is disposed in the assembly hole 303, through holes 204 corresponding to the assembly hole 303 are formed on the annular side wall 101, the limiting frame 102 and the insert sheet structure 203, and the positioning pin 4 can sequentially pass through the through holes 204 to be fixedly connected with the insert sheet structure 203.

In this application, the opening formed in the bottom frame 302 for inserting the retaining ring 1 may be configured as an octagonal opening. In this application, referring to fig. 6, a connection structure 100 of an airbag bag and a retaining ring is specifically shown in the process of assembling:

the air bag connector 3 is placed horizontally, i.e. the horizontal axis of the air bag connector 3 is kept horizontal. The retaining ring 1 is turned around the horizontal axis so that the plane of the horizontal axis of the retaining ring 1 is perpendicular to the plane of the horizontal axis of the air bag connecting piece 3. The retaining ring 1 is turned around the vertical axis so that the side avoiding surface of the annular side wall 101 of the retaining ring 1 is located right below the diagonal line of the bottom frame 302 of the air bag connector 3, the inner edge of the bottom frame 302 of the air bag connector 3 is octagonal, the retaining ring 1 passes through the bottom frame 302, and at the moment, the retaining ring 1 is located in the air bag connected with the air bag connector 3. The retainer ring 1 is then brought into facing relation with the fitting annular wall 301, and the retainer ring 1 is slid down into the inside of the fitting annular wall 301 so that the retainer ring 1 falls onto the bottom frame 302 of the air bag attachment 3. At this time, the connection of the air bag connector 3 to the retainer ring 1 is completed. The gas generator 2 is penetrated through the retaining ring 1, and the insert piece structure 203 penetrates through the bottom wall 113 of the retaining ring 1 and is mutually clamped with the limiting frame 102, so that the gas generator 2 is connected with the retaining ring 1 and the air bag connecting piece 3 into a whole. At this time, the connection of the gas generator 2 is completed. The positioning pins 4 sequentially pass through the through holes 204 to be fixedly connected with the insert sheet structures 203, and finally the integrally connected gas generator 2, the retaining ring 1 and the gas bag connecting piece 3 are arranged in the shell 5, and the shell 5 plays a role in locking the positioning pins 44.

With continued reference to fig. 4 and 5, in some embodiments, the tab structure 203 may have a downward disposed card 206 formed thereon, and a protrusion 207 formed on one side of the card 206; the side wall of the limit frame 102 is formed with a groove 104, the groove 104 corresponds to a protrusion 207 for the mutual engagement of the insert structure 203 and the limit frame 102, wherein the bottom wall 113 is formed with a slot 107 corresponding to the insert structure 203, and the slot 107 is configured to receive the clamping plate 206 and the protrusion 207 therethrough, so that the protrusion 207 can be engaged with the groove 104.

The card 206 mentioned in this application is understood to be that the central portion of the tab structure 203 forms a hollow area, the top edge of the card 206 is connected to the top edge of the hollow area, and the card 206 is elastically deformed when the protrusion 207 is forced. The slot 107 referred to in this application is configured to receive the card 206 and the protrusion 207 therethrough can be understood as: during the insertion process of the insert structure 203, when the bottom wall 113 is blocked, the protrusion 207 can be inserted into the limit frame 102 through deformation of the clamping plate 206, and when the protrusion 207 reaches the position of the groove 104, the clamping plate 206 is reset, so that the protrusion 207 and the groove 104 are in clamping fit. Therefore, the slot 107 should have a receiving space for the card 206 to elastically deform, so that the card 206 can be smoothly inserted into the limit frame 102. That is, the limit frame 102 has an opening 105, the opening 105 is disposed opposite to the groove 104, and one side of the slot 107 is provided with a receiving groove 107 corresponding to the opening 105.

Through the arrangement, the gas generator 2 penetrates through the retaining ring 1, the inserting sheet structure 203 penetrates through the bottom wall 113 of the retaining ring 1 and is mutually clamped with the limiting frame 102, so that the gas generator 2 and the retaining ring 1 are connected with the gas bag connecting piece 3 into a whole, and the connecting mode is simple to operate and easy to connect, and meanwhile, has reliable connection stability.

With continued reference to fig. 4 and 5, in some embodiments, the retaining ring 1 further includes a limiting tube 108 connected to the mounting hole 114 and extending upward, and an inner side wall of the top opening of the limiting tube 108 is formed with an inner rim 109; the gas generator 2 further comprises an elastic component 111 sleeved on the generator body 201, and the elastic component 111 is elastically abutted between the inner edge 109 and the mounting base plate 202.

The elastic member 111 in this application may be a spring. In this application, the elastic component 111 elasticity butt makes the inserted sheet structure 203 and the in-process of spacing frame 102 each other block between inner edge 109 structure and mounting plate 202, and the spring can provide prestressing force to can improve the reliability of inserted sheet structure 203 and spacing frame 102 block effectively.

Referring to fig. 1 and 5, in some embodiments, an air outlet 208 is formed on a sidewall of the generator body 201, and the air outlet 208 is located above the limiting tube 108. Wherein the annular sidewall 101 is configured to surround the air outlet 208 on the generator body 201.

In this application, the air outlets 208 are uniformly formed on the sidewall of the generator body 201. The annular side wall 101 in the application is configured to encircle the air outlet 208 on the generator body 201, and the arrangement can enable the annular side wall 101 to buffer the air discharged from the air outlet 208 on the generator body 201 so as to absorb the heat of the air, so that the problem that the air bag is damaged due to the impact of the air flow and the overhigh heating capacity after the air bag is inflated can be effectively avoided.

With continued reference to fig. 3, in some embodiments, the retaining ring 1 may further comprise: a mounting groove 110 formed at an outer bottom position of the annular sidewall 101; a positioning block 112 slidably disposed in the mounting groove 110; and a spring 205 disposed in the mounting groove 110 and elastically abutting against the bottom of the mounting groove 110 and the positioning block 112; the inner bottom of the fitting annular wall 301 is formed with a clamping groove 304 in one-to-one correspondence with the positioning block 112.

In the present application, the positioning block 112 can be compressed by providing the spring 205 in the mounting groove 110. Thus, when the retaining ring 1 is mounted to the bottom frame 302 of the air bag connector 3, the spring 205 can be compressed to push the positioning block 112 into the clamping groove 304. The positioning block 112 is matched with the spring 205, the clamping groove 304 and the bottom frame 302 to lock the annular side wall 101 in the assembled annular wall 301, so that the stability of fixing the retaining ring 1 and the air bag connecting piece 3 can be further improved, and meanwhile, the convenience of assembly is further improved.

Referring to fig. 7 and 8, in a second preferred embodiment, the connection structure 100 of the airbag bag and the retainer ring further includes a control assembly 6, and the control assembly 6 is used for controlling the position of the positioning pin 4. By this arrangement, the positioning component 6 is used for regulating and controlling the position of the positioning pin 4, i.e. the positioning pin 4 can be integrated on the air bag connecting piece 3 through the positioning component 6, thereby being more beneficial to improving the convenience of assembly.

In the first preferred embodiment of the control bit assembly 6, i.e., the embodiment shown in fig. 7 and 8, the outer end of the assembly hole 303 is formed with an expanding slot 602, the inner end of the assembly hole 303 is fixed with a first stop 604, the control bit assembly 6 may include an end cap 601 and a first bar slot 603, and the end cap 601 is disposed at the end of the positioning pin 4 far from the generator body 201 and is located in the expanding slot 602; the first bar-shaped groove 603 is sleeved on the positioning pin 4 and is in sliding connection with the first stop block 604.

The outer end of the assembly hole 303 refers to the end of the assembly hole 303 away from the generator body 201, and the inner end of the assembly hole 303 is the end close to the generator body 201. In this application, the first stopper 604 cooperates with the first bar-shaped groove 603 to limit the positioning pin 4. In this way, before the retaining ring 1 slides down into the inner side of the assembly annular wall 301, the positioning pin 4 can be pulled out through the end cap 601, so that one end of the positioning pin 4 near the generator body 201 is flush with the inner side wall of the assembly annular wall 301, after the retaining ring 1 slides into the inner side of the assembly annular wall 301, the positioning pin 4 is embedded into the limit frame 102 through the assembly hole 303, and the connection of the positioning pin 4 is completed.

In some embodiments, the material of the end cap 601 may be an elastic material, such as a rubber material. The thickness of the end cap 601 is greater than the depth of the flared tank 602 to facilitate the pulling and pressing of the end cap 601; the outer diameter of the end face of the end cap 601 close to the locating pin 4 is smaller than the outer diameter of the outward expansion groove 602, and the area of the end face of the end cap 601 close to the locating pin 4 is larger than the cross-sectional area of the locating pin 4, so that the position of the adjusting locating pin 4 can be adjusted conveniently.

Referring to fig. 9 to 12, in a third preferred embodiment, that is, a second preferred embodiment of the control module 6, the control module 6 may include a second bar-shaped groove 605, a second stopper 606, and an extension tube 607, where the second stopper 606 is fixedly connected to the assembly hole 303, and the second stopper 606 may be connected to an end of the positioning pin 4 near the generator body 201 through an elastic member; the second strip-shaped groove 605 is sleeved on the positioning pin 4 and is in sliding connection with the second stop block 606; one end of the extension tube 607 is fixedly connected in the assembly hole 303 and corresponds to the positioning pins 4 one by one, and the extension tube 607 is in sliding connection with the positioning pins 4; wherein, the annular side wall 101 is formed with a recess 103 corresponding to the extension tube 607, and the recess 103 is used for accommodating the extension tube 607.

The elastic member in the present application may be an elastic band. In this application, the resilient member on the second stop 606 allows the locating pin 4 to be received in the extension tube 607 before the retaining ring 1 is slid down into the inside of the mounting annular wall 301. In this way, the retaining ring 1 is slid into the inner side of the assembly annular wall 301 against the elastic force of the elastic member, the positioning pin 4 is embedded into the limiting frame 102 through the assembly hole 303, the integrated gas generator 2, the retaining ring 1 and the gas bag connecting member 3 are then installed into the shell 5, and the shell 5 locks the positioning pin 4 to avoid rebound of the elastic member.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

In the description of the present application, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A connecting structure of an airbag bag and a retainer ring, characterized by comprising:

a gas generator for filling the inside of the airbag bag with a gas;

the retaining ring is sleeved on the periphery of the gas generator and used for fixing the gas generator;

the top of the air bag connecting piece is used for being connected with an air bag of the safety air bag, and the air bag connecting piece is sleeved on the periphery of the retaining ring;

the positioning pins sequentially penetrate through the air bag connecting piece and the side wall of the retaining ring to be connected with the gas generator; and

the shell is sleeved on the periphery of the gas generator, the retaining ring and the air bag connecting piece, the inner side wall of the shell is abutted to the free end of the locating pin, and the shell is used for installing the gas generator, the retaining ring and the air bag connecting piece.

2. The airbag to retainer ring connection structure of claim 1, wherein the retainer ring includes an annular side wall and a bottom wall, a mounting hole and a stopper frame uniformly distributed on the bottom wall around the mounting hole being formed in a middle portion of the bottom wall; the gas generator comprises a mounting bottom plate and a generator body fixed on the mounting bottom plate, wherein inserting sheet structures which are in one-to-one correspondence with the limiting frames are uniformly distributed on the mounting bottom plate around the generator body, the inserting sheet structures are used for forming clamping connection with the limiting frames, and the generator body is arranged in the mounting holes; the air bag connecting piece comprises an assembling annular wall and a bottom frame fixedly connected to the inner side of the assembling annular wall, and an opening for inserting the retaining ring is formed in the bottom frame and is positioned between the bottom wall and the mounting bottom plate; the assembly device comprises an assembly annular wall, a positioning pin, a limiting frame and an inserting sheet, wherein the assembly annular wall is provided with an assembly hole, the assembly hole is formed in the assembly hole and is internally provided with the positioning pin, through holes corresponding to the assembly hole are formed in the annular side wall, the limiting frame and the inserting sheet structure, and the positioning pin can sequentially penetrate through the through holes to be fixedly connected with the inserting sheet structure.

3. The airbag and retainer ring connection structure of claim 2, wherein the insert structure has a downwardly disposed clip formed thereon, the clip having a protrusion formed on one side thereof; the side wall of the limit frame is provided with a groove, the groove corresponds to the protrusion and is used for mutually clamping the inserting sheet structure and the limit frame, wherein the bottom wall is provided with a slot corresponding to the inserting sheet structure, and the slot is configured to accommodate the clamping plate and the protrusion to pass through so that the protrusion can be clamped with the groove.

4. The airbag to retainer ring connection structure of claim 2, wherein the retainer ring further comprises a retainer tube connected to the mounting hole and extending upward, an inner sidewall of a top opening of the retainer tube being formed with an inner rim structure; the gas generator further comprises an elastic component sleeved on the generator body, and the elastic component is elastically abutted between the inner edge structure and the mounting bottom plate.

5. The airbag-to-retainer ring connection of claim 4, wherein the sidewall of the generator body defines an air outlet opening, the air outlet opening being positioned above the retainer tube, wherein the annular sidewall is configured to surround the air outlet opening of the generator body.

6. The airbag to retainer ring attachment structure of claim 2, wherein the retainer ring further comprises: a mounting groove formed at an outer bottom position of the annular sidewall; the positioning block is arranged in the mounting groove in a sliding manner; the spring is arranged in the mounting groove and elastically abuts against the bottom of the mounting groove and the positioning block; and clamping grooves which are in one-to-one correspondence with the positioning blocks are formed in the bottom of the inner side of the assembly annular wall.

7. The airbag to retainer ring connection structure of any one of claims 2 to 6, further comprising a position control assembly for controlling the position of the positioning pin.

8. The airbag-to-retainer ring connection of claim 7, wherein an outer end of the mounting hole is formed with an expanding groove, an inner end of the mounting hole is fixed with a first stopper, the control assembly comprises an end cap and a first bar-shaped groove, and the end cap is disposed at one end of the positioning pin away from the generator body and is positioned in the expanding groove; the first strip-shaped groove is sleeved on the locating pin and is in sliding connection with the first stop block.

9. The airbag-to-retainer ring connection of claim 8, wherein the end cap is made of an elastic material, the thickness of the end cap is greater than the depth of the flaring slot, the outer diameter of the end cap near the locating pin is smaller than the outer diameter of the flaring slot, and the area of the end cap near the locating pin is greater than the cross-sectional area of the locating pin.

10. The airbag-to-retainer ring connection of claim 7, wherein the control assembly includes a second slot, a second stop, and an extension tube, the second stop being fixedly connected to the mounting hole, and the second stop being connected to an end of the locating pin adjacent to the generator body by an elastic member; the second bar-shaped groove is sleeved on the locating pin and is in sliding connection with the second stop block; one end of the extension pipe is fixedly connected in the assembly hole and corresponds to the positioning pins one by one, and the extension pipe is in sliding connection with the positioning pins; the annular side wall is provided with a concave part corresponding to the extension pipe, and the concave part is used for accommodating the extension pipe.

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