Housing frame for airbag and airbag housing

Abstract

The utility model relates to the technical field of safety air bags, and provides a shell frame for a safety air bag and a safety air bag shell. A housing frame for an airbag includes a first member supporting a transverse space and a second member supporting a longitudinal space; the first component and the second component respectively comprise a plurality of sections of connecting pipes which are connected, at least part of adjacent connecting pipes are detachably connected, and the second component is detachably connected with the first component. The shell frame is detachably connected through the connecting pipe to form the first component and the second component which can be flexibly adjusted, adjustment can be conveniently conducted in the length direction, the width direction, the height direction and the like, shell frames of different shapes / sizes can be assembled, and therefore the requirements for shells of different shapes / sizes of the safety air bag are met.

Description

Technical Field

[0001] The utility model relates to the technical field of safety airbags, in particular to a shell frame and a safety airbag shell for a safety airbag. Background Art

[0002] There are many types of airbags in vehicles, and each type of airbag has different models and corresponding shells of different sizes. For example, passenger airbags (PAB: Passenger-AirBag) configured in different models / different positions have shells of different sizes.

[0003] At present, different sizes of airbag shells need to be produced using different molds, which requires a lot of consumables and is costly. A solution that can adapt to the needs of airbag shells of different sizes is needed to improve the current problem.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of this, the utility model provides a shell frame and an airbag shell for an airbag. The shell frame is detachably connected by a connecting pipe, which is convenient for adjustment in length, width, height and other directions. It can be assembled into shell frames with different shapes / sizes to meet the requirements of airbag shells of different shapes / sizes.

[0006] One aspect of the utility model provides a shell frame for an airbag, comprising a first component supporting a lateral space and a second component supporting a longitudinal space; the first component and the second component respectively include a plurality of connected connecting tubes, wherein at least some adjacent connecting tubes are detachably connected, and the second component is detachably connected to the first component.

[0007] In some embodiments, adjacent connecting tubes are detachably connected via a connecting clamp to form a connecting assembly, wherein the connecting assembly includes: a first tube segment, the first tube segment is provided with at least one first through hole; a second tube segment, the second tube segment is provided with at least one second through hole, the first tube segment extends into the second tube segment, and a first through hole is aligned with a second through hole; the connecting clamp is provided with a protrusion, the connecting clamp is embedded in the first tube segment, and the protrusion is sequentially inserted into the first through hole and the second through hole in relative position.

[0008] In some embodiments, the connecting clip includes a first section and a second section that are connected, wherein: the extension direction of the first section is compatible with the extension direction of the first tube section, the protrusion is arranged on the first section, and the first section fits the inner wall of the first tube section; the second section forms a preset angle with the first section, and the free end of the second section abuts the inner wall of the first tube section.

[0009] In some embodiments, the preset angle α satisfies: 0°<α<90°, and the free end of the second segment extends to exceed the free end of the first segment in the extension direction of the first segment.

[0010] In some embodiments, the first pipe segment is provided with a plurality of first through holes spaced apart along its length direction, and / or the second pipe segment is provided with a plurality of second through holes spaced apart along its length direction.

[0011] In some embodiments, the connecting pipe is made of a metal material, and / or the connecting clip is made of a hard material having elasticity.

[0012] In some embodiments, adjacent connecting pipes are detachably connected via a snap-fit ​​structure, wherein the snap-fit ​​structure includes a snap-fit ​​portion formed on an outer wall of a first pipe segment and a snap-fit ​​groove formed on an inner wall of a second pipe segment.

[0013] In some embodiments, adjacent connecting pipes are detachably connected via a threaded structure, wherein the threaded structure includes an external thread formed on an outer wall of a first pipe segment and an internal thread formed on an inner wall of a second pipe segment.

[0014] In some embodiments, the opposite ends of the same connecting pipe are respectively formed into any one of the following situations: both ends are the first pipe segments; both ends are the second pipe segments; one end is the first pipe segment and the other end is the second pipe segment; one end is an interference fit pipe segment without a detachable connecting structure and the other end is the first pipe segment or the second pipe segment; both ends are the interference fit pipe segments without a detachable connecting structure.

[0015] In some embodiments, the connecting tubes of the first components are detachably connected to each other, and the connecting tubes of the second components are detachably connected to each other.

[0016] In some embodiments, the first component includes a straight connecting pipe and a curved connecting pipe connected end to end, and the second component includes a T-shaped connecting pipe connected to the first component and a straight connecting pipe connected to the T-shaped connecting pipe.

[0017] In some embodiments, a bracket piece is connected to the end of the straight connecting tube of the second member.

[0018] In some embodiments, the shell frame further includes: a connecting ring, which is sleeved on the first component, and the connecting ring has a connecting portion extending away from the first component, and the connecting portion is a hook or a screw hole.

[0019] In some embodiments, the side walls of the connecting ring and the connecting tube of the first component are provided with matching through holes, and the connecting ring and the connecting tube are fixed by a pin which interference fits through the matching through holes.

[0020] Another aspect of the utility model provides an airbag shell, comprising: a wrapping cloth, folded to form a accommodating cavity; a shell frame as described in any of the above embodiments, accommodated in the accommodating cavity; wherein the shell frame has a connecting portion, the wrapping cloth is provided with a hanging hole, and the connecting portion extends out of the hanging hole; a generator, the wrapping cloth is provided with an accommodating hole, and the active part of the generator passes through the accommodating hole and extends into the accommodating cavity; a fastening assembly, the shell frame has a bracket sheet, the bracket sheet, the wrapping cloth and the generator are provided with corresponding mounting holes, and the fastening assembly passes through and fixes the bracket sheet, the wrapping cloth and the mounting holes of the generator in sequence.

[0021] In some embodiments, the fastening assembly includes: a compression spring with a stud, which is arranged in the accommodating cavity, the compression spring is crimped to the action part, and the stud passes through the bracket plate, the wrapping cloth and the mounting hole of the generator in sequence; a nut, which is screwed to the stud.

[0022] Compared with the prior art, the beneficial effects of the present invention include at least:

[0023] The first component supports the transverse space for accommodating the airbag. The first component includes a plurality of connected connecting tubes, wherein at least some of the adjacent connecting tubes are detachably connected, so as to flexibly adjust the length, width and other parameters of the first component in the transverse direction.

[0024] The second component supports the longitudinal space so that the generator of the airbag can be accommodated. The second component includes a plurality of connected connecting tubes, wherein at least some of the adjacent connecting tubes are detachably connected, and the second component is detachably connected to the first component, so that the height and other parameters of the second component can be flexibly adjusted in the longitudinal direction, and the connection between the second component and the first component can be adjusted, so that the housing frame can be adjusted as a whole.

[0025] Therefore, the shell frame of the utility model can be detachably connected to form the first component and the second component through the connecting tube, which is convenient for adjustment in length, width, height and other directions. Different connecting tubes can be selected according to different assembly requirements, or the connection between the connecting tubes can be adjusted according to different assembly requirements to assemble into shell frames with different shapes / sizes to meet the requirements of shells of different shapes / sizes of airbags.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of the housing frame in an embodiment of the utility model is shown;

[0029] Figure 2 A partial cross-sectional structural schematic diagram of a housing frame in an embodiment of the utility model is shown;

[0030] Figures 3 to 5 A schematic diagram showing the exploded structure of the connection assembly in an embodiment of the utility model is shown;

[0031] Figure 6 A schematic diagram showing the matching structure of the connecting ring and the connecting section in an embodiment of the utility model is shown;

[0032] Figure 7 A schematic diagram showing the exploded structure of the airbag housing in an embodiment of the utility model is shown;

[0033] Figure 8 A schematic diagram of the unfolding structure of the wrapping cloth in an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0035] The accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and thus their repeated description will be omitted.

[0036] The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. In the description of the present utility model, the terms "upper", "lower", "horizontal", "vertical" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present utility model, when it is said that a device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0038] Figure 1 The three-dimensional structure of the shell frame is shown in FIG. Figure 1 As shown, a shell frame 100 for an airbag provided by an embodiment of the utility model includes a first component A supporting a lateral space and a second component B supporting a longitudinal space; the first component A and the second component B respectively include a plurality of connected connecting tubes 10, wherein at least some adjacent connecting tubes 10 are detachably connected, and the second component B is detachably connected to the first component A.

[0039] The first component A supports the lateral space for accommodating the airbag. The first component A includes a plurality of connected connecting tubes 10, wherein at least some adjacent connecting tubes 10 are detachably connected, so as to flexibly adjust the length, width and other parameters of the first component A in the lateral direction.

[0040] The second component B supports the longitudinal space so that the generator of the airbag can be accommodated. The second component B includes a plurality of connected connecting tubes 10, wherein at least some of the adjacent connecting tubes 10 are detachably connected, and the second component B is detachably connected to the first component A, so that the height and other parameters of the second component B can be flexibly adjusted in the longitudinal direction, and the connection between the second component B and the first component A can be adjusted, so that the housing frame can be adjusted as a whole.

[0041] Thus, the shell frame of the utility model is detachably connected through the connecting tube 10 to form the first component A and the second component B, which is convenient for adjustment in length, width, height and other directions. Different connecting tubes 10 can be selected according to different assembly requirements, or the connection between the connecting tubes 10 can be adjusted according to different assembly requirements to assemble into shell frames with different shapes / sizes to meet the requirements of shells of different shapes / sizes of airbags.

[0042] Figure 2 The partial cross-sectional structure of the shell frame is shown in FIG. Figures 3 to 5 Illustrate the decomposition structure of connected components; combine Figures 1 to 5 As shown, in some embodiments, adjacent connecting pipes 10 are detachably connected by connecting clips 20 to form a connecting assembly, and the connecting assembly includes:

[0043] A first pipe section 110, wherein the first pipe section 110 is provided with at least one first through hole 111;

[0044] The second pipe section 120 is provided with at least one second through hole 122, the first pipe section 110 extends into the second pipe section 120, and a first through hole 111 is aligned with a second through hole 122;

[0045] The connecting clip 20 is provided with a protrusion 22. The connecting clip 20 is embedded in the first pipe section 110. The protrusion 22 is sequentially inserted into the first through hole 111 and the second through hole 122 at opposite positions.

[0046] The connecting pipe 10 may include connecting pipes of different shapes such as a straight connecting pipe 10a, a bent connecting pipe 10b, and a T-shaped connecting pipe 10c.

[0047] Between the first pipe section 110 and the second pipe section 120, the inner pipe section (i.e., the first pipe section 110) extends into the outer pipe section (i.e., the second pipe section 120), the connecting clip 20 is embedded in the inner pipe section, and its protrusion 22 is inserted into the through holes of the inner and outer pipe sections at opposite positions, so as to achieve a connection that is both stable and convenient for assembly and disassembly. The first pipe section 110 is provided with at least one first through hole 111, and the second pipe section 120 is provided with at least one second through hole 122. According to different assembly requirements, the alignment relationship between the first through hole 111 and the second through hole 122 can be adjusted, and then the connection between the first pipe section 110 and the second pipe section 120 can be adjusted to achieve the adjustment of the length / width / height of the housing frame 100.

[0048] When assembling the connection assembly, first insert the connection clip 20 into the first pipe section 110 so that the protrusion 22 of the connection clip 20 extends from the appropriate first through hole 111; then extend the first pipe section 110 into the second pipe section 120. As the first pipe section 110 extends, the protrusion 22 extending from the first through hole 111 automatically finds the second through hole 122 at the front end of the second pipe section 120 and inserts into the second through hole 122 to complete the assembly. If the second through hole 122 that matches the protrusion 22 needs to be adjusted, the protrusion 22 can be pressed down and the first pipe section 110 can be continuously pushed so that the protrusion 22 is inserted into other appropriate second through holes 122 to complete the assembly that meets specific assembly requirements. When disassembling, similarly, press down the protrusion 22 and pull the first pipe section 110 to separate the first pipe section 110 from the second pipe section 120.

[0049] In some embodiments, the connecting clip 20 includes a first section 21a and a second section 21b connected to each other, wherein: the extension direction of the first section 21a is compatible with the extension direction of the first tube section 110, the protrusion 22 is arranged on the first section 21a, and the first section 21a fits the inner wall of the first tube section 110; the second section 21b is at a preset angle with the first section 21a, and the free end of the second section 21b abuts the inner wall of the first tube section 110.

[0050] The first section 21a is fitted to the inner wall of the first pipe section 110 and the free end of the second section 21b is abutted against the inner wall of the first pipe section 110, so that the connecting clip 20 is firmly embedded in the first pipe section 110, and the protrusion 22 arranged on the first section 21a extends out of the first through hole 111 so as to be inserted into the second through hole 122, thereby realizing a firm connection between the first pipe section 110 and the second pipe section 120.

[0051] In some embodiments, the preset angle α satisfies: 0°<α<90°, and the free end of the second segment 21 b extends to exceed the free end of the first segment 21 a in the extension direction of the first segment 21 a.

[0052] The preset angle α is formed as an acute angle, so that the connecting clamp 20 as a whole is formed into a stable V-shape; the free end of the second section 21b extends beyond the free end of the first section 21a, so that the first section 21a is stably supported by the second section 21b, so that the first section 21a fits the inner wall of the first pipe section 110, thereby ensuring that the protrusion 22 is stably inserted into the first through hole 111 and the second through hole 122.

[0053] In some embodiments, the first pipe segment 110 is provided with a plurality of first through holes 111 spaced apart along its length direction, and / or the second pipe segment 120 is provided with a plurality of second through holes 122 spaced apart along its length direction.

[0054] In this way, the connection relationship between the first pipe section 110 and the second pipe section 120 can be flexibly adjusted according to different shape / size requirements of the housing frame 100. The spacing between the first through holes 111 and the spacing between the second through holes 122 can be equal or unequal, and the specific values ​​can be set as needed, for example, the spacing is 5 cm, but not limited thereto.

[0055] In some embodiments, the connecting pipe 10 is made of a metal material, and / or the connecting clip 20 is made of a hard material having elasticity.

[0056] The connection pipe 10 made of metal material, such as steel, can ensure strength; the connection pipe 10 can be made into a round or square hollow pipe. The hard material with elasticity can be metal, and the hard material can ensure the structural strength of the connection clamp 20. The elastic feature facilitates the detachable connection between the first pipe section 110 and the second pipe section 120.

[0057] Furthermore, in addition to realizing the detachable connection between adjacent connecting tubes 10 through the connecting clip 20 , adjacent connecting tubes 10 may also be detachably connected through a snap-fit ​​structure, a threaded structure, or the like.

[0058] Specifically, in some embodiments, adjacent connecting pipes 10 are detachably connected via a buckle structure (not specifically shown in the figure), and the buckle structure includes a buckle portion formed on the outer wall of the first pipe segment 110 and a buckle groove formed on the inner wall of the second pipe segment 120. In some embodiments, adjacent connecting pipes 10 are detachably connected via a threaded structure, and the threaded structure includes an external thread formed on the outer wall of the first pipe segment 110 and an internal thread formed on the inner wall of the second pipe segment 120. In some embodiments, adjacent connecting pipes 10 can also be detachably connected via other suitable detachable connection structures.

[0059] In the above embodiments, the opposite ends of the same connecting tube 10 are formed into any of the following situations: both ends are the first tube section 110, in which case the two ends of the connecting tube 10 are respectively inserted into another connecting tube to achieve a detachable connection; both ends are the second tube section 120, in which case the two ends of the connecting tube 10 are respectively sleeved outside another connecting tube to achieve a detachable connection; one end is the first tube section 110 and the other end is the second tube section 120, in which case one end of the connecting tube 10 is inserted into another connecting tube to achieve a detachable connection and the other end is sleeved outside another connecting tube to achieve a detachable connection; one end is an interference pipe section without a detachable connection structure and the other end is the first pipe section 110 or the second pipe section 120; both ends are interference pipe sections without a detachable connection structure. Among them, the interference pipe section without a detachable connection structure can be connected by interference fit with any of the interference pipe sections without a detachable connection structure, the first pipe section 110, and the second pipe section 120.

[0060] In some preferred embodiments, the connecting tubes 10 of the first component A are detachably connected to each other, and the connecting tubes 10 of the second component B are detachably connected to each other. In this way, the adjustment of the length, width, height and other directions of the housing frame is greatly facilitated, and housing frames with different shapes / sizes are assembled through the detachably connected connecting tubes 10 to meet the requirements of housings of different shapes / sizes of airbags.

[0061] Continue to combine Figures 1 to 5 As shown, in some embodiments, the first component A includes a straight connecting pipe 10a and a curved connecting pipe 10b connected end to end, and the second component B includes a T-shaped connecting pipe 10c connected to the first component A and a straight connecting pipe 10a connected to the T-shaped connecting pipe 10c.

[0062] The first component A is used to support the horizontal main body shape of the airbag housing, and the second component B is used to support the vertical height space of the airbag housing to accommodate the airbag and the generator. The first component A is assembled into the required shape and size by connecting the straight connecting tube 10a, the curved connecting tube 10b and other connecting tubes end to end; the horizontal section of the T-shaped connecting tube 10c can be connected to the first component A, or can be interference-fitted outside the straight connecting tube 10a / curved connecting tube 10b of the first component A, and the vertical section of the T-shaped connecting tube 10c is connected to the straight connecting tube 10a to form the second component B.

[0063] In some embodiments, a bracket sheet 30 is connected to the end of the straight connection tube 10 a of the second member B.

[0064] The bracket sheet 30 can be interference-fitted on the end of the straight connection tube 10a of the second component B. The bracket sheet 30 is used for assembling the generator.

[0065] Figure 6 The matching structure of the connecting ring and the connecting segment is shown; Figures 1 to 6 As shown, in some embodiments, the housing frame 100 further includes: a connecting ring 40, which is sleeved on the first component A, and the connecting ring 40 has a connecting portion 44 extending away from the first component A, and the connecting portion 44 is a hook or a screw hole.

[0066] The connection portion 44 of the connection ring 40 is used to connect the housing frame 100 with the body component. According to the connection requirements of the housing frame 100 and the body component, the connection ring 40 can be set at different positions of the first component A. If the connection portion 44 is a hook, the housing frame 100 can be hung on the body component; if the connection portion 44 is a screw hole, the housing frame 100 can be screwed on the body component. In some cases, the screw hole can also be directly opened on the connecting pipe 10.

[0067] In some embodiments, the side walls of the connecting ring 40 and the connecting tube 10 are provided with matching through holes 400 , and the connecting ring 40 and the connecting tube 10 are fixed by a pin 48 that passes through the matching through holes 400 through interference fit.

[0068] The connecting ring 40 and the connecting pipe 10 are firmly connected by the pin 48 which is inserted through the matching through holes 400 of the connecting ring 40 and the connecting pipe 10 .

[0069] The embodiment of the utility model also provides an airbag housing. Figure 7 The exploded structure of the airbag housing is shown in figure. Figure 8 The unfolded structure of the wrapping cloth is shown; combined Figures 1 to 8 As shown, the airbag housing provided by the embodiment of the utility model includes:

[0070] The wrapping cloth 50 is folded to form a receiving cavity 500; Figure 8The dotted folds of the wrap 50 shown may form Figure 7 The wrapping cloth 50 shown;

[0071] The housing frame 100 is accommodated in the accommodating cavity 500;

[0072] The housing frame 100 has a connecting portion 44, the wrapping cloth 50 is provided with a hanging hole 54, and the connecting portion 44 extends out of the hanging hole 54;

[0073] The generator 60 and the wrapping cloth 50 are provided with a receiving hole 330, and the action part 62 of the generator 60 passes through the receiving hole 330 and extends into the receiving cavity 500;

[0074] The fastening assembly includes a housing frame 100 with a bracket sheet 30 , and the bracket sheet 30 , the wrapping cloth 50 and the generator 60 are provided with matching mounting holes 300 . The fastening assembly passes through and fixes the mounting holes 300 of the bracket sheet 30 , the wrapping cloth 50 and the generator 60 in sequence.

[0075] The wrapping cloth 50 is used to accommodate the bag that wraps the airbag. The bag is wrapped with a soft wrapping cloth 50, which can improve the adaptability to the installation environment and reduce the distance between the airbag and the vehicle body equipment, for example, from the traditional 20 cm to 10 cm. The shell frame 100 is accommodated in the accommodating cavity 500 of the wrapping cloth 50, and is used to support the space for accommodating the bag and the generator 60. The action part 62 of the generator 60 extends into the accommodating cavity 500 through the accommodating hole 330, and the generator 60 is assembled with the wrapping cloth 50 and the shell frame 100 by sequentially passing through and fixing the bracket sheet 30, the wrapping cloth 50 and the mounting hole 300 of the generator 60, so that the generator 60 can stably push the bag to unfold under set conditions (such as collision).

[0076] The connection between the airbag housing and the vehicle body component can be achieved through the connecting portion 44 of the housing frame 100 extending out of the hanging hole 54 of the wrapping cloth 50 .

[0077] The airbag housing of the utility model adopts the housing frame 100 mentioned above, and can conveniently adjust the shape / size to meet the requirements of housings of different shapes / sizes of airbags, and can be applied to airbags of different types and models and meet the requirements of different vehicle models.

[0078] In some embodiments, the fastening assembly includes: a compression spring 80 with a stud 82, which is arranged in the accommodating cavity 500, the compression spring 80 crimps the action part 62, and the stud passes through the mounting hole 300 of the bracket plate 30, the wrapping cloth 50 and the generator 60 in sequence; a nut 86, which is screwed to the stud 82.

[0079] Among them, the compression spring 80 and the generator 60 are respectively provided with flange parts. During assembly, the flange part of the compression spring 80 and the flange part of the generator 60 press the wrapping cloth 50 and the bracket sheet 30, and through the cooperation between the compression spring 80 with the stud 82 and the nut, the generator 60 is firmly assembled with the wrapping cloth 50 and the shell frame 100.

[0080] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A housing frame for an airbag, characterized in that: It includes a first member supporting the transverse space and a second member supporting the longitudinal space; The first component and the second component respectively include a plurality of connected connecting pipes, wherein at least some of the adjacent connecting pipes are detachably connected, and the second component is detachably connected to the first component.

2. The housing frame according to claim 1, characterized in that: Adjacent connecting pipes are detachably connected by connecting clips to form a connecting assembly, which includes: A first pipe section, wherein the first pipe section is provided with at least one first through hole; a second pipe section, wherein the second pipe section is provided with at least one second through hole, the first pipe section extends into the second pipe section, and the first through hole is aligned with the second through hole; The connecting clip is provided with a protrusion, and the connecting clip is embedded in the first pipe section. The protrusion is sequentially inserted into the first through hole and the second through hole at opposite positions.

3. The housing frame according to claim 2, characterized in that: The connecting clip comprises a first section and a second section connected to each other, wherein: The extension direction of the first section matches the extension direction of the first pipe section, the protrusion is arranged on the first section, and the first section fits the inner wall of the first pipe section; The second section forms a preset angle with the first section, and the free end of the second section abuts against the inner wall of the first tube section.

4. The housing frame according to claim 3, characterized in that: The preset angle α satisfies: 0°<α<90°, and the free end of the second segment extends to exceed the free end of the first segment in the extension direction of the first segment.

5. The housing frame according to claim 2, characterized in that: The first pipe section is provided with a plurality of first through holes spaced apart along its length direction, and / or the second pipe section is provided with a plurality of second through holes spaced apart along its length direction.

6. The housing frame according to claim 2, characterized in that: The connecting pipe is made of a metal material, and / or the connecting clip is made of an elastic hard material.

7. The housing frame according to claim 1, characterized in that: Adjacent connecting pipes are detachably connected via a buckle structure, wherein the buckle structure comprises a buckle portion formed on the outer wall of a first pipe section and a buckle groove formed on the inner wall of a second pipe section.

8. The housing frame according to claim 1, characterized in that: Adjacent connecting pipes are detachably connected via a threaded structure, wherein the threaded structure comprises an external thread formed on an outer wall of a first pipe section and an internal thread formed on an inner wall of a second pipe section.

9. The housing frame according to any one of claims 2 to 8, characterized in that: The two opposite ends of the same connecting pipe are formed into any of the following situations: Both ends are the first pipe sections; Both ends are the second pipe section; One end is the first pipe section, and the other end is the second pipe section; One end is an interference fit pipe section without a detachable connection structure, and the other end is the first pipe section or the second pipe section; Both ends are interference fit pipe sections without detachable connection structures.

10. The housing frame according to claim 9, characterized in that: The connecting pipes of the first components are detachably connected to each other, and the connecting pipes of the second components are detachably connected to each other.

11. The housing frame according to claim 1, characterized in that: The first component includes a straight connecting pipe and a bent connecting pipe connected end to end, and the second component includes a T-shaped connecting pipe connected to the first component and a straight connecting pipe connected to the T-shaped connecting pipe.

12. The housing frame according to claim 11, characterized in that: The end of the straight connection pipe of the second component is connected with a bracket piece.

13. The housing frame according to claim 1, characterized in that: Also includes: The connecting ring is sleeved on the first component, and the connecting ring has a connecting portion extending away from the first component, and the connecting portion is a hook or a screw hole.

14. The housing frame according to claim 13, characterized in that: The side walls of the connecting ring and the connecting pipe of the first component are provided with matching through holes, and the connecting ring and the connecting pipe are fixed by a pin which passes through the matching through holes through interference fit.

15. An airbag housing, characterized in that: include: Wrapping cloth, folded to form a receiving cavity; The housing frame according to any one of claims 1 to 14, accommodated in the accommodating cavity; Wherein, the shell frame has a connecting portion, the wrapping cloth is provided with a hanging hole, and the connecting portion extends out of the hanging hole; Generator, the wrapping cloth is provided with a receiving hole, and the action part of the generator passes through the receiving hole and extends into the receiving cavity; The fastening assembly comprises a housing frame with a bracket sheet, the bracket sheet, the wrapping cloth and the generator are provided with matching mounting holes, and the fastening assembly passes through and fixes the mounting holes of the bracket sheet, the wrapping cloth and the generator in sequence.

16. The airbag housing according to claim 15, characterized in that: The fastening assembly comprises: A compression spring with a stud is arranged in the accommodating cavity, the compression spring is pressed against the action part, and the stud passes through the bracket sheet, the wrapping cloth and the installation hole of the generator in sequence; A nut is threadedly connected to the stud.

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