Fixing structure of automobile A-pillar upper guard plate assembly
The combination of airbag secondary clips and metal clips in the fixing structure solves the shaking and assembly problems of the A-pillar upper guard plate assembly, achieving a stable fixing effect and ensuring that the airbag deploys normally.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHERY AUTOMOBILE CO LTD
- Filing Date
- 2026-01-08
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, the fixing structure of the A-pillar upper guard plate assembly has problems such as shaking and poor assembly guidance, and the metal clips are easy to fall out, which affects the airbag deployment.
The system employs a combination of airbag-type secondary clips and metal clips for fixation. The airbag-type secondary clips feature umbrella-shaped support ribs and a tapered design, while the metal clips have elastic springs and anti-detachment steps. The A-pillar upper guard plate is fixed to the A-pillar sheet metal through the clip-on structure.
The stability of the A-pillar upper guard plate assembly has been improved, preventing it from detaching after the airbags burst and ensuring that the airbags deploy smoothly.
Smart Images
Figure CN121822344A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of automobiles, and particularly relates to a fixing structure of an A-pillar upper guard plate assembly of an automobile. BACKGROUND
[0002] The safety of automobiles has been widely concerned by people, and more and more automobiles are equipped with side air curtains. The fixing structure of the A-pillar upper guard plate assembly has high requirements. In a static state, the A-pillar upper guard plate assembly and the vehicle body are not allowed to shake. After the side air curtain is detonated, the air curtain can smoothly escape from the A-pillar, and the A-pillar upper guard plate assembly cannot be damaged and splashed.
[0003] In the prior art, the fixing structure of the secondary buckle of the A-pillar upper guard plate assembly has problems of shaking and poor assembly guiding, and the metal buckle of the A-pillar upper guard plate assembly is prone to escape, thereby affecting the deployment of the airbag. SUMMARY
[0004] To solve the above problems, the application provides a fixing structure of an A-pillar upper guard plate assembly of an automobile.
[0005] The fixing structure of the A-pillar upper guard plate assembly of the automobile comprises an A-pillar upper guard plate assembly, an A-pillar sheet metal and an air curtain assembly. The A-pillar upper guard plate assembly comprises an A-pillar upper guard plate body, a metal buckle and an airbag secondary buckle. The airbag secondary buckle is installed on the A-pillar upper guard plate body through a first clamping structure. The metal buckle is installed on the A-pillar upper guard plate body through a second clamping structure. The A-pillar sheet metal is provided with an airbag secondary buckle mounting hole and a metal buckle mounting hole. The metal buckle mounting hole corresponds in position to the metal buckle. The airbag secondary buckle mounting hole corresponds in position to the airbag secondary buckle. The A-pillar upper guard plate body is fixed on the airbag secondary buckle mounting hole and the metal buckle mounting hole of the A-pillar sheet metal through the metal buckle and the airbag secondary buckle.
[0006] Preferably, one side of the A-pillar upper guard plate body is provided with a first bolt structure and a second bolt structure. The A-pillar upper guard plate body, the first bolt structure and the second bolt structure are integrally formed.
[0007] Preferably, the end of the airbag secondary buckle is conical, and the cross section of the end of the airbag secondary buckle is inverted M-shaped. The cross section of the bottom end of the airbag secondary buckle is inverted M-shaped. The bottom end of the airbag secondary buckle is installed at the mouth of the A-pillar upper guard plate body.
[0008] Preferably, the first clamping structure comprises an umbrella-shaped supporting rib. The airbag secondary buckle is provided with an umbrella-shaped supporting rib. Four open grooves are formed in the umbrella-shaped supporting rib. The width of the open groove is 1-3 mm.
[0009] Preferably, the thickness of the umbrella-shaped support rib is 0.56-2mm; the width of the umbrella-shaped support rib is 15-25mm; and the height of the umbrella-shaped support rib is 2.5-4mm.
[0010] Preferably, the second locking structure includes a mounting block and an elastic spring; the mounting block is installed on the A-pillar upper guard plate body; the locking head of the metal buckle is arc-shaped, the upper side of the supporting neck of the metal buckle protrudes outward and the lower side is folded inward, and the connection between the locking head and the supporting neck is arc-shaped; elastic springs are fixed to the bottom of both ends of the metal buckle, and there is an installation gap between a pair of elastic springs, and the adjacent ends of a pair of elastic springs are both upward-protruding.
[0011] Preferably, the upper sidewall of the mounting block is provided with an anti-detachment step.
[0012] Preferably, the installation gap between the pair of elastic springs and the width of the mounting block are an interference fit.
[0013] Preferably, the width of the anti-detachment step is 0.5-2mm.
[0014] Preferably, the A-pillar upper guard plate body and the mounting block are integrally formed.
[0015] Compared with the prior art, this application has the following advantages: The A-pillar upper guard plate is equipped with airbag secondary clips and metal clips. These clips secure the A-pillar upper guard plate to the A-pillar sheet metal. The umbrella-shaped support ribs of the airbag secondary clips provide support, and the umbrella-shaped support ribs have four opening slots to reduce the assembly force required to insert the airbag secondary clips into the airbag secondary clip mounting holes. The head of the airbag secondary clips is conical, facilitating the assembly of the A-pillar upper guard plate onto the airbag secondary clip mounting holes. The mounting blocks on the A-pillar upper guard plate are equipped with anti-detachment steps to prevent the metal clips from coming off the A-pillar upper guard plate, thus solving the problem of the A-pillar upper guard plate not detaching after airbag deployment.
[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the fixing structure of an A-pillar upper guard plate assembly for automobiles is shown. Figure 2 An exploded view of the fixing structure of the A-pillar upper guard plate assembly is shown; Figure 3 A schematic diagram of the structure for the airbag secondary buckle and the A-pillar upper guard plate body is shown. Figure 1 ; Figure 4 A schematic diagram of the structure for the airbag secondary buckle and the A-pillar upper guard plate body is shown. Figure 2 ; Figure 5 A schematic diagram of the structure of the A-pillar upper guard plate body and the metal buckle is shown.
[0019] Legend: 1. Air curtain assembly; 2. A-pillar sheet metal; 3. A-pillar upper guard plate assembly; 21. Airbag secondary buckle mounting hole; 22. Metal buckle mounting hole; 31. Metal buckle; 311. Mounting block; 312. Anti-detachment step; 313. Elastic spring; 32. A-pillar upper guard plate body; 33. Airbag secondary buckle; 331. Umbrella-shaped support rib; 332. Opening groove; 34. First pin structure; 35. Second pin structure. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] A fixing structure for an automotive A-pillar upper guard plate assembly includes an A-pillar upper guard plate assembly 3, an A-pillar sheet metal 2, and an air curtain assembly 1. The A-pillar upper guard plate assembly 3 includes an A-pillar upper guard plate body 32, metal clips 31, and airbag secondary clips 33. The airbag secondary clips 33 are mounted on the A-pillar upper guard plate body 32 via a first snap-fit structure. The metal clips 31 are mounted on the A-pillar upper guard plate body 32 via a second snap-fit structure. The A-pillar sheet metal 2 has airbag secondary clip mounting holes 21 and metal clip mounting holes 22. The metal clip mounting holes 22 and metal clips 31 are positioned opposite each other. The A-pillar upper guard plate body 32 is fixed to the airbag secondary clip mounting holes 21 and metal clip mounting holes 22 on the A-pillar sheet metal 2 via the metal clips 31 and airbag secondary clips 33. The A-pillar upper guard plate body 32 is provided with a first pin structure 34 and a second pin structure 35 on one side; the A-pillar upper guard plate body 32, the first pin structure 34 and the second pin structure 35 are integrally formed. like Figure 1 and Figure 2 As shown, the assembly process of the A-pillar upper guard plate body 32 is as follows: First, insert the first pin structure 34 and the second pin structure 35 of the A-pillar upper guard plate body 32 into the instrument panel assembly (existing technology, not shown), along... Figure 1 As shown, when the A-axis rotates, the metal clip 31 first contacts and engages with the metal clip mounting hole 22, and then the airbag secondary clip 33 engages with the airbag secondary clip mounting hole 21, making it easier for the airbag secondary clip 33 to be inserted into the airbag secondary clip mounting hole 21.
[0022] The airbag secondary buckle 33 has a tapered end and an inverted M-shaped cross-section at the end and bottom. The bottom of the airbag secondary buckle 33 is installed at the latch of the A-pillar upper guard plate body 32. The first snap-fit structure includes an umbrella-shaped support rib 331; the airbag secondary buckle 33 is provided with an umbrella-shaped support rib 331; the umbrella-shaped support rib 331 is provided with four opening slots 332; the width of the opening slots 332 is 1-3mm; The thickness of the umbrella-shaped support rib 331 is 0.56-2mm; the width of the umbrella-shaped support rib 331 is 15-25mm; and the height of the umbrella-shaped support rib 331 is 2.5-4mm. like Figure 3 and 4As shown, the airbag secondary buckle 33 is inserted into the airbag secondary buckle mounting hole 21. Because the airbag secondary buckle mounting hole 21 is a round hole and the bottom of the airbag secondary buckle 33 is tapered with an inverted M-shaped cross-section, it provides elastic space after the airbag secondary buckle 33 is inserted, making it easy to insert the airbag secondary buckle 33. At the same time, after the airbag secondary buckle 33 is inserted, the umbrella-shaped support rib 331 will fit against the outer wall of the airbag secondary buckle mounting hole 21. Because the umbrella-shaped support rib 331 has an opening groove 332, it has deformation capability. When assembling the airbag secondary buckle 33, an axial insertion force of 80 to 110 N needs to be applied. Because the width L1 of the opening groove 332 is set to 1-3 mm, the umbrella-shaped support rib 331 will undergo elastic deformation, increasing the support stability requirements. like Figure 4 As shown, the thickness L4 of the umbrella-shaped support rib 331 is 0.56 to 2 mm, the width L2 of the umbrella-shaped support rib 331 is 15 to 25 mm, and the height L3 of the umbrella-shaped support rib 331 is 2.5 to 4.5 mm.
[0023] The second locking structure includes a mounting block 311 and an elastic spring sheet 313; the mounting block 311 is installed on the A-pillar upper guard plate body 32; the locking head of the metal buckle 31 is arc-shaped, the upper side of the support neck of the metal buckle 31 protrudes outward and the lower side is folded inward, and the connection between the locking head and the support neck is arc-shaped; elastic spring sheets 313 are fixedly connected to the bottom of both ends of the metal buckle 31, and there is an installation gap between a pair of elastic spring sheets 313, and the adjacent ends of a pair of elastic spring sheets 313 are both upward-protruding; An anti-detachment step 312 is provided on the upper side wall of the mounting block 311; The mounting gap between the pair of elastic spring pieces 313 and the width of the mounting block 311 are an interference fit. The width of the anti-detachment step 312 is 0.5-2mm; The A-pillar upper guard plate body 32 and the mounting block 311 are integrally formed; like Figure 5 As shown, when the metal clip 31 is inserted into the A-pillar upper guard plate body 32, the installation gap of a pair of elastic springs 313 will be inserted into the mounting block 311. Because the installation gap between the pair of elastic springs 313 and the width of the mounting block 311 are interference fit, the elastic springs 313 will deform, which facilitates the insertion of the mounting block 311. Then, through the setting of the anti-detachment step 312, and the width of the anti-detachment step 312 L5 is 0.5-2mm, when the metal clip 31 is pulled out under force, the anti-detachment step 312 will limit the metal clip 31 from falling out, thereby improving the fastening stability.
[0024] Although this application 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A fixing structure for an automotive A-pillar upper guard plate assembly, characterized in that: The system includes an A-pillar upper guard plate assembly (3), an A-pillar sheet metal (2), and an air curtain assembly (1); the A-pillar upper guard plate assembly (3) includes an A-pillar upper guard plate body (32), a metal clip (31), and an airbag secondary clip (33); the airbag secondary clip (33) is installed on the A-pillar upper guard plate body (32) through a first snap-fit structure; the metal clip (31) is installed on the A-pillar upper guard plate body (32) through a second snap-fit structure; the A-pillar sheet metal (2) has an opening... Airbag secondary buckle mounting hole (21) and metal buckle mounting hole (22); the metal buckle mounting hole (22) and metal buckle (31) are in corresponding positions; the airbag secondary buckle mounting hole (21) and airbag secondary buckle (33) are in corresponding positions; the A-pillar upper guard plate body (32) is fixed to the airbag secondary buckle mounting hole (21) and metal buckle mounting hole (22) on the A-pillar sheet metal (2) by the metal buckle (31) and airbag secondary buckle (33).
2. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 1, characterized in that: The A-pillar upper guard plate body (32) has a first pin structure (34) and a second pin structure (35) on one side; the A-pillar upper guard plate body (32), the first pin structure (34) and the second pin structure (35) are integrally formed.
3. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 2, characterized in that: The end of the airbag secondary buckle (33) is tapered, and the cross-section of the end of the airbag secondary buckle (33) is inverted M-shaped, and the cross-section of the bottom end of the airbag secondary buckle (33) is inverted M-shaped; the bottom end of the airbag secondary buckle (33) is installed at the buckle of the A-pillar upper guard plate body (32).
4. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 3, characterized in that: The first snap-fit structure includes an umbrella-shaped support rib (331); the airbag secondary buckle (33) is provided with an umbrella-shaped support rib (331); the umbrella-shaped support rib (331) is provided with four opening slots (332); the width of the opening slots (332) is 1-3mm.
5. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 4, characterized in that: The thickness of the umbrella-shaped support rib (331) is 0.56-2mm; the width of the umbrella-shaped support rib (331) is 15-25mm; and the height of the umbrella-shaped support rib (331) is 2.5-4mm.
6. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 5, characterized in that: The second locking structure includes a mounting block (311) and an elastic spring (313); the mounting block (311) is installed on the A-pillar upper guard plate body (32); the locking head of the metal buckle (31) is arc-shaped, the upper side of the support neck of the metal buckle (31) protrudes outward and the lower side folds inward, and the connection between the locking head and the support neck is arc-shaped; elastic springs (313) are fixed to the bottom of both ends of the metal buckle (31), and there is an installation gap between a pair of elastic springs (313), and the adjacent ends of a pair of elastic springs (313) are both convex upward.
7. The fixing structure for an automotive A-pillar upper guard plate assembly according to claim 6, characterized in that: An anti-detachment step (312) is provided on the upper side wall of the mounting block (311).
8. The fixing structure for the upper guard plate assembly of an automobile A-pillar according to claim 7, characterized in that: The mounting gap between the pair of elastic springs (313) and the width of the mounting block (311) are interference fit.
9. A fixing structure for an automotive A-pillar upper guard plate assembly according to claim 8, characterized in that: The width of the anti-detachment step (312) is 0.5-2mm.
10. The fixing structure for an automotive A-pillar upper guard plate assembly according to claim 9, characterized in that: The A-pillar upper guard plate body (32) and the mounting block (311) are integrally formed.