Quick buckle connection structure of automotive interior part

Abstract

The utility model discloses a kind of quick buckle connection structures of automotive interior trim, including interior trim buckle main body, the top end of interior trim buckle main body is equipped with interior trim fixed plate, the outer wall of interior trim buckle main body is evenly equipped with lug along its axis center;The bottom end of interior trim buckle main body is provided with smooth taper face, and the bottom end of interior trim buckle main body is installed with spherical ball;Quick buckle connection structure of automotive interior trim is simplified greatly by unique design, every adjacent two lugs between the setting cooperation groove, and fastening ring synergistic effect, significantly enhance the stability of connection, when interior trim fixed plate is installed in interior trim buckle main body top end, by the fastening effect of fastening ring, lug can be tightly against mounting hole inner wall, cooperation groove further increases friction and occlusal force, effectively prevent the situation that buckle appears loose or falls off in use process.

Description

Technical Field

[0001] This utility model relates to the field of snap-fit ​​connection structure technology, specifically a quick snap-fit ​​connection structure for automotive interior parts. Background Technology

[0002] In the assembly process of automotive interior parts, the design of the connection structure is crucial. Traditional automotive interior part connection methods have many drawbacks. For example, some connection structures use threaded connections, which not only requires tapping threads on the sheet metal holes of the sheet metal parts, the mounting holes of the interior panels, and the fasteners, but also significantly increases the mold costs for manufacturing and makes the manufacturing process complex and cumbersome. At the same time, during assembly, tools are needed to tighten the fasteners one by one, and a single interior panel and sheet metal part often have a large number of mounting holes. This operation method seriously reduces assembly efficiency and greatly increases labor costs. Furthermore, some existing clip-on structures, due to insufficient rigidity and weak clamping force, are prone to loosening or even detachment during vehicle operation, especially when encountering bumps or vibrations. This fails to guarantee a secure connection of interior trim components, thereby affecting the overall stability and safety of the automotive interior. Additionally, some clip-on structures are extremely inconvenient to install and remove, requiring specific tools, and improper operation can easily damage interior trim components. This poses significant challenges to the installation, repair, and replacement of automotive interior trim components. Utility Model Content

[0003] The purpose of this utility model is to provide a quick-release snap-fit ​​connection structure for automotive interior parts to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-release buckle connection structure for automotive interior trim parts, comprising an interior trim part buckle body, an interior trim part fixing plate mounted on the top of the interior trim part buckle body, and protrusions evenly mounted along the axis of the outer wall of the interior trim part buckle body; a smooth conical surface is provided at the bottom end of the interior trim part buckle body, and a ball is installed at the bottom end of the interior trim part buckle body; a mating groove is provided between each pair of adjacent protrusions, and a fastening ring is provided at the outer top end of the interior trim part buckle body; the interior trim part buckle body and the interior trim part fixing plate are snapped together by a snap-fit ​​structure.

[0005] As a preferred embodiment of the quick-release buckle connection structure for automotive interior parts according to this utility model, the buckle structure includes a buckle block installed at the center of the bottom end of the interior part fixing plate and a buckle groove opened at the center of the top end of the interior part buckle body, wherein the buckle block is engaged inside the buckle groove.

[0006] As a preferred embodiment of the quick-release buckle connection structure for automotive interior parts according to this utility model, the inner walls on both sides of the buckle block are provided with inclined convex surfaces, and the outer walls on both sides of the buckle groove are provided with inclined concave surfaces, the inclined convex surfaces and the inclined concave surfaces cooperating with each other.

[0007] As a preferred embodiment of the quick-release buckle connection structure for automotive interior parts according to this utility model, the buckle block has a filling cavity inside, an elastic element is installed inside the filling cavity, and the end of the buckle block has an arc surface.

[0008] As a preferred embodiment of the quick-release buckle connection structure for automotive interior parts according to this utility model, the inner wall of the slot is provided with a concave surface.

[0009] As a preferred embodiment of the quick-release buckle connection structure for automotive interior parts according to this utility model, the fastening ring has a fastening opening on its side wall, and the protrusion has a triangular bevel on its side wall.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the design of this quick-release buckle connection structure for automotive interior parts is reasonable; This quick-release clip-on connection structure for automotive interior trim parts significantly simplifies the installation process through its unique design. For example, during installation, the smooth conical surface at the bottom of the clip body provides excellent guidance, making it easy to insert the clip body into the corresponding mounting hole. Simultaneously, the spherical design makes insertion smoother, reducing jamming, lowering installation difficulty, and improving installation efficiency. The mating groove between each pair of adjacent protrusions works in conjunction with the fastening ring to significantly enhance the stability of the connection. When the interior trim fixing plate is installed on the top of the interior trim clip body, the protrusions can be firmly pressed against the inner wall of the mounting hole by the fastening action of the fastening ring. The mating groove further increases the friction and biting force, effectively preventing the clip from loosening or falling off during use, and ensuring that the automotive interior trim parts maintain a stable connection under various working conditions. Attached Figure Description

[0011] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 3 This is a schematic diagram of the snap-fit ​​structure of this utility model; Figure 4 This is a schematic diagram of part A of the present utility model.

[0012] In the diagram: 1. Interior trim clip body; 2. Protrusion; 3. Sphere; 4. Smooth conical surface; 5. Interior trim panel fixing plate; 6. Clip structure; 7. Concave surface; 8. Fastening ring; 9. Mating groove; 10. Fastening port; 11. Triangular bevel; 12. Clip block; 13. Clip groove; 14. Filling cavity; 15. Elastic element; 16. Arc surface; 17. Sloping convex surface; 18. Sloping concave surface. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: In this technical solution, a quick-release buckle connection structure for automotive interior parts includes an interior part buckle body 1. The top of the interior part buckle body 1 is fitted with an interior part fixing plate 5. The outer wall of the interior part buckle body 1 is uniformly fitted with protrusions 2 along its axis. The bottom end of the interior part buckle body 1 is provided with a smooth conical surface 4. A ball 3 is installed at the bottom end of the interior part buckle body 1. A mating groove 9 is provided between each pair of adjacent protrusions 2. A fastening ring 8 is provided at the outer top end of the interior part buckle body 1. The interior part buckle body 1 and the interior part fixing plate 5 are snapped together by a snap-fit ​​structure 6.

[0015] Interior trim clip body 1: Typically made of plastic materials with a certain strength and toughness, such as common polyoxymethylene (POM) and nylon (PA). These materials can withstand the vibrations and bumps during vehicle operation, ensuring the stability of the clip structure. Taking POM as an example, it has good rigidity, wear resistance, and fatigue resistance, making it very suitable for manufacturing the body of automotive interior trim clips. Its cylindrical shape facilitates installation with other components and evenly distributes stress. Interior trim mounting plate 5: Generally made of metal, such as aluminum alloy or thin steel sheet. Aluminum alloy is widely used in automotive interior trim due to its light weight and high strength. It works in conjunction with the interior trim clip body 1 to secure the interior trim. Its size and shape are designed according to the specific installation requirements of the interior trim to ensure a tight fit and provide stable support. Protrusion 2: Evenly distributed on the outer wall of the interior trim clip body 1, the number of which usually depends on the size of the clip and the application scenario, generally between 3 and 6. The function of these protrusions is to ensure close contact with the inner wall of the mounting hole during installation, increasing friction and engagement force, and preventing the clip from loosening during use. The height of the protrusions is generally between 1-3mm, and the width is between 2-5mm. The specific dimensions need to be optimized based on the overall strength requirements of the clip and the size of the mounting hole. Smooth conical surface 4: Located at the bottom end of the interior trim clip body 1, its cone angle is generally designed between 30° and 60°. This angle ensures good guidance when inserting into the mounting hole without affecting the structural strength of the clip due to excessive angle. The surface roughness of the smooth conical surface is generally controlled between Ra0.8 and Ra1.6 to ensure smooth insertion and reduce jamming. Sphere 3: Installed at the bottom end of the interior trim clip body 1, usually made of stainless steel or hard plastic. The diameter of the sphere is generally between 3-8mm. Its function is to further reduce the resistance during insertion. At the same time, when the clip is vibrated during vehicle operation, the sphere can play a certain buffering role, reducing damage to the interior trim and mounting holes. Mating Groove 9: A mating groove is provided between every two adjacent protrusions 2. Its depth is generally between 1-2 mm, and its width matches the width of the protrusion. The presence of the mating groove allows the protrusion to undergo better elastic deformation when subjected to external force, thereby enhancing the friction and clamping force with the inner wall of the mounting hole. In practical applications, the mating groove also serves to drain and vent air, preventing moisture or air accumulation from affecting the connection performance of the snap-fit. Fastening ring 8: Generally made of a metal material with good elasticity, such as spring steel. Its inner diameter is slightly smaller than the outer diameter of the interior trim clip body 1, and it is installed on the outer top of the clip body 1 by interference fit. The width of the fastening ring is generally between 3-8mm. Its function is to further tighten the protrusion after installation, making it firmly abut against the inner wall of the mounting hole to prevent the clip from loosening. The elastic coefficient of the fastening ring is generally between 10-50N / mm, and the specific value needs to be selected according to the usage environment and fastening requirements of the clip. Snap-fit ​​structure 6: As a key structure connecting the interior trim snap-fit ​​body 1 and the interior trim fixing plate 5, its design directly affects the stability and reliability of the entire snap-fit ​​connection structure. Its specific structure will be described in detail below.

[0016] In some technical solutions, the snap-fit ​​structure 6 includes a snap-fit ​​block 12 installed at the center of the bottom end of the interior trim fixing plate 5 and a snap-fit ​​groove 13 opened at the center of the top end of the interior trim buckle body 1, with the snap-fit ​​block 12 snapping into the inside of the snap-fit ​​groove 13.

[0017] Locking block 12: Typically integrally molded with the interior trim fixing plate 5, and made of the same material. Its shape is generally cylindrical, with a diameter determined by the size of the locking slot 13, typically between 5-10mm. The length of the locking block 12 is generally between 8-15mm, ensuring it can penetrate deeply into the locking slot 13 and provide sufficient locking force. In some applications requiring high locking force, the surface of the locking block 12 may be knurled to increase friction with the inner wall of the locking slot 13. Slot 13: Located at the center of the top of the interior trim clip body 1, its shape matches that of the clip 12, and it is cylindrical. The depth of slot 13 is slightly greater than the length of clip 12, generally between 10-18mm, to ensure that clip 12 can be fully inserted into slot 13 with a certain margin to prevent clip 12 from dislodging due to vehicle vibration or other reasons. There is a certain interference fit between the inner diameter of slot 13 and the outer diameter of clip 12, generally between 0.1-0.3mm, to achieve a tight engagement.

[0018] In some technical solutions, the inner walls on both sides of the card block 12 are provided with inclined convex surfaces 17, and the outer walls on both sides of the card slot 13 are provided with inclined concave surfaces 18, with the inclined convex surfaces 17 and the inclined concave surfaces 18 cooperating with each other.

[0019] Angled convex surface 17: This is formed on the inner walls of both sides of the locking block 12, with an angle generally between 10° and 30°. This angle design ensures that the locking block 12 can be smoothly inserted into the locking slot 13 during installation, and also increases the tightness of the engagement after insertion through the cooperation of the angled convex surface 17 and the angled concave surface 18. The height of the angled convex surface 17 is generally between 1 and 3 mm, and its length is adapted to the length of the locking block 12. The surface roughness of the angled convex surface 17 is generally controlled between Ra1.6 and Ra3.2 to ensure smooth sliding when it mates with the angled concave surface 18, while also providing sufficient friction. The concave surface 18 is formed on both outer walls of the slot 13 and mates with the convex surface 17. Its tilt angle, height, and surface roughness correspond to those of the convex surface 17. The design of the concave surface 18 allows the locking block 12 to automatically align during insertion into the slot 13, improving installation accuracy. Furthermore, during vehicle operation, when the latch is subjected to vibration or external force, the interaction between the convex surface 17 and the concave surface 18 generates a lateral frictional force, further enhancing the stability of the latch and preventing the locking block 12 from dislodging from the slot 13.

[0020] In some technical solutions, the card block 12 has a filling cavity 14 inside, and an elastic element 15 is installed inside the filling cavity 14. The end of the card block 12 has an arc surface 16.

[0021] Filling cavity 14: It is formed inside the locking block 12, and its shape is generally cylindrical. The diameter is determined according to the size of the locking block 12 and the specifications of the elastic element 15, and is generally between 3-6mm. The depth of the filling cavity 14 is generally between 5-10mm, to ensure that it can accommodate the elastic element 15 and provide it with a certain amount of room to move. Elastic component 15: Typically made of elastic materials such as springs or rubber. If a spring is used, it is generally a compression spring with a spring wire diameter between 0.5-1.5mm and an outer diameter between 2-5mm. The spring compression depends on the actual requirements, generally between 2-5mm. The function of elastic component 15 is to buffer and adaptively adjust when the latch is subjected to vibration or external force during vehicle operation. For example, when the vehicle travels over bumpy roads, elastic component 15 can absorb some vibration energy through its own compression and rebound, reducing the impact on the latching part and thus ensuring the stability of the latching. Arc surface 16: Located at the end of the locking block 12, its radius is generally between 1-3mm. The arc surface 16 is designed primarily to make it easier for the locking block 12 to be inserted into the slot 13 during installation, reducing insertion resistance. Simultaneously, during vehicle operation, when the latch is subjected to vibration, the arc surface 16 can prevent the end of the locking block 12 from hardly colliding with the edge of the slot 13, thus protecting the locking block 12 and the slot 13 from damage.

[0022] In some technical solutions, the inner wall of the slot 13 is provided with a concave surface 7.

[0023] Concave surface 7: Located on the inner wall of the slot 13, its shape and size are determined according to actual needs. Generally, the concave surface 7 can be semi-circular, rectangular, or other irregular shapes. The function of the concave surface 7 is to form a local interference fit or increase friction with the corresponding structure on the surface of the card block 12 after the card block 12 is inserted into the slot 13. For example, if there are protrusions or raised structures at corresponding positions on the surface of the card block 12, when the card block 12 is inserted into the slot 13, the protrusions or raised structures can be embedded in the concave surface 7, further enhancing the stability of the engagement. The depth of the concave surface 7 is generally between 0.5-2mm, and the width and length are determined according to the specific design.

[0024] In some technical solutions, the side wall of the fastening ring 8 is provided with a fastening port 10, and the side wall of the protrusion 2 is provided with a triangular bevel 11.

[0025] Fastening notch 10: Located on the side wall of the fastening ring 8, its shape is generally rectangular or trapezoidal. The width of the fastening notch 10 is generally between 2-5mm, and the length depends on the width of the fastening ring 8, generally between 5-10mm. The function of the fastening notch 10 is to allow for tightening of the inner diameter of the fastening ring 8 by using a tool (such as pliers) during installation, thereby achieving fastening of the interior trim clip body 1. In some designs, the edges of the fastening notch 10 may be chamfered to facilitate tool operation. Triangular bevel 11: This is formed on the side wall of the protrusion 2, with an inclination angle generally between 30° and 60°. The function of the triangular bevel 11 is to guide the protrusion 2 smoothly into the mounting hole when the interior trim clip body 1 is inserted. Simultaneously, during insertion, the friction between the triangular bevel 11 and the inner wall of the mounting hole causes a certain degree of elastic deformation in the protrusion 2, thus better adapting to the dimensional tolerances of the mounting hole. After installation, the contact between the triangular bevel 11 and the inner wall of the mounting hole also increases the friction between the protrusion 2 and the inner wall of the mounting hole, preventing the clip from loosening. The height of the triangular bevel 11 is generally between 1-3mm, and the length of the base depends on the size of the protrusion 2, generally between 2-5mm.

[0026] I. Installation Preparation Phase Before installing automotive interior trim parts, ensure that the trim part clip body 1, trim part fixing plate 5, and related components are intact. The trim part clip body 1 is made of high-strength, high-toughness plastics such as polyoxymethylene (POM) or nylon (PA), providing a reliable foundation for subsequent installation and use. The trim part fixing plate 5 is made of metal materials such as aluminum alloy or thin steel plate, ensuring stable support for the trim parts. At this time, the clip block 12 and the clip groove 13 in the clip structure 6 are separated, and the fastening ring 8 is installed on the outer top of the trim part clip body 1 through an interference fit. All structures such as the protrusion 2, mating groove 9, smooth conical surface 4, and sphere 3 are in their initial state. II. Assembly process and principle of interior trim clip body and mounting holes Insertion Guiding Stage: During installation, align the bottom end of the interior trim clip body 1 with the corresponding mounting hole in the automotive interior trim. The smooth conical surface 4 at the bottom plays a crucial guiding role; its 30°-60° conical angle design accurately guides the clip body to smoothly align with the mounting hole. As insertion proceeds, the ball 3 at the bottom end first contacts the mounting hole. The ball, made of stainless steel or hard plastic with a diameter between 3-8mm, significantly reduces the contact area during insertion, thereby reducing insertion resistance and allowing the clip body to enter the mounting hole more easily. Elastic deformation and fastening stage of the protrusion: As the buckle body continues to be inserted into the mounting hole, the sidewall of the protrusion 2 contacts the inner wall of the mounting hole. The protrusions 2 are evenly distributed on the outer wall of the buckle body, numbering 3-6, with a height of 1-3mm and a width of 2-5mm. Because a mating groove 9, 1-2mm deep, is provided between each pair of adjacent protrusions 2, the protrusions can undergo elastic deformation under the pressure of the inner wall of the mounting hole. Simultaneously, the triangular bevel 11 (inclination angle 30°-60°) on the sidewall of the protrusion interacts with the inner wall of the mounting hole, further guiding the deformation of the protrusion and allowing it to better adapt to the dimensional tolerances of the mounting hole. As the buckle body penetrates deeper into the mounting hole, the fastening ring 8 reaches the edge of the mounting hole. The fastening ring is made of spring steel with good elasticity, with a width of 3-8mm and an elastic coefficient of 10-50N / mm. Its inner diameter is slightly smaller than the outer diameter of the buckle body. Under the interference fit, it generates a continuous fastening force on the protrusion, making the protrusion press tightly against the inner wall of the mounting hole. The mating groove 9 can also play a role in venting air at this time, preventing air accumulation from affecting the installation. III. The process and principle of the connection between the interior trim fixing plate and the buckle body Insertion of the clip into the slot: After assembling the interior trim clip body 1 with the mounting hole, connect the interior trim fixing plate 5 to the clip body. Align the clip 12 at the bottom of the interior trim fixing plate 5 with the slot 13 at the top of the interior trim clip body 1. The clip 12 is cylindrical, with a diameter of 5-10mm and a length of 8-15mm. The rounded surface 16 at the end (radius 1-3mm) reduces insertion resistance, allowing the clip to smoothly enter the slot. The slot 13 is cylindrical, with a depth of 10-18mm. There is an interference fit of 0.1-0.3mm between the inner diameter and the outer diameter of the clip, laying the foundation for a tight engagement later. During the fastening stage of the convex and concave surfaces: As the locking block 12 is inserted into the slot 13, the convex surfaces 17 (tilt angle 10°-30°) on both sides of the inner wall of the locking block and the concave surfaces 18 on both sides of the outer wall of the slot engage with each other. The height of the convex surfaces is 1-3mm. As the locking block goes deeper, the convex surfaces slide along the concave surfaces. The engagement of the two not only achieves automatic centering and improves installation accuracy, but also forms a tight lateral engagement after insertion, enhancing the stability of the locking. At the same time, the concave surface 7 (depth 0.5-2mm) on the inner wall of the slot engages with the corresponding structure on the surface of the locking block. If there are protrusions on the surface of the locking block, they will be embedded in the concave surface to form a local interference fit, further improving the locking firmness. Elastic element buffering stage: An elastic element 15 is installed in the filling cavity 14 (diameter 3-6mm, depth 5-10mm) inside the locking block 12. If it is a compression spring, its wire diameter is 0.5-1.5mm, outer diameter is 2-5mm, and compression is 2-5mm. When the locking block is fully inserted into the locking slot, the elastic element is in a slightly compressed state. During vehicle operation, when encountering bumpy road surfaces and vibrations, the elastic element absorbs vibration energy through compression and rebound, achieving buffering and adaptive adjustment, reducing the impact on the locking part, and ensuring locking stability. IV. Stability and Cushioning Principles During Use Connection stability principle: After installation, the fastening ring 8 continuously applies a fastening force to the protrusion 2. Under the action of the fastening force and its own elastic restoring force, the protrusion fits tightly against the inner wall of the mounting hole. The mating groove 9 increases the friction and clamping force between the protrusion and the mounting hole, effectively preventing the buckle from loosening. In the snap-fit ​​structure, the tight engagement of the inclined convex surface 17 and the inclined concave surface 18, the fit between the concave surface 7 and the protrusion of the snap block, and the interference fit between the snap block and the slot together constitute multiple layers of stability protection, ensuring a reliable connection between the interior trim fixing plate and the snap-fit ​​body. Vibration buffering and damage prevention principle: Vibrations from vehicle operation are transmitted to the snap-fit ​​structure. The sphere 3 at the bottom of the mounting hole partially buffers vibration through slight rolling; the elastic element 15 absorbs vibration energy inside the snap-fit ​​block, reducing the impact on the snap-fit ​​area; the arc-shaped surface 16 at the end of the snap-fit ​​block avoids hard collisions with the edge of the slot, protecting the snap-fit ​​block and slot from damage. The synergistic effect of these structures ensures the snap-fit ​​connection structure maintains stable performance and extends its service life during long-term use. V. Disassembly Process Principle When it is necessary to disassemble the interior trim, an outward pulling force is applied to the interior trim fixing plate 5. Under the action of the pulling force, the inclined convex surface 17 of the locking block 12 and the inclined concave surface 18 of the locking groove 13 slide relative to each other. The elastic element 15 is further compressed and then rebounds, assisting the locking block to disengage from the locking groove. At the same time, an external force is applied to the fastening opening 10 (width 2-5mm, length 5-10mm) of the fastening ring 8, which expands the inner diameter of the fastening ring, reduces the fastening force on the protrusion 2, and the protrusion returns to its original shape under its own elasticity, reducing the friction with the inner wall of the mounting hole. Thus, the interior trim buckle body 1 can be easily removed from the mounting hole, realizing convenient disassembly of the interior trim.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick-release buckle connection structure for automotive interior parts, comprising an interior part buckle body (1), characterized in that, The top of the interior trim buckle body (1) is fitted with an interior trim fixing plate (5), and the outer wall of the interior trim buckle body (1) is uniformly fitted with protrusions (2) along its axis. The bottom end of the interior trim buckle body (1) is provided with a smooth conical surface (4), and a ball (3) is installed at the bottom end of the interior trim buckle body (1). A mating groove (9) is provided between each pair of adjacent protrusions (2), and a fastening ring (8) is provided at the top outer end of the interior trim buckle body (1). The interior trim buckle body (1) and the interior trim fixing plate (5) are connected by a snap-fit ​​structure (6).

2. The quick-release snap-fit ​​connection structure for automotive interior parts according to claim 1, characterized in that, The snap-fit ​​structure (6) includes a snap-fit ​​block (12) installed at the bottom center of the interior trim fixing plate (5) and a snap-fit ​​groove (13) opened at the top center of the interior trim buckle body (1), wherein the snap-fit ​​block (12) snaps into the inside of the snap-fit ​​groove (13).

3. The quick-release snap-fit ​​connection structure for automotive interior parts according to claim 2, characterized in that, The inner walls of both sides of the card block (12) are provided with inclined convex surfaces (17), and the outer walls of both sides of the card slot (13) are provided with inclined concave surfaces (18). The inclined convex surfaces (17) and the inclined concave surfaces (18) cooperate with each other.

4. The quick-release snap-fit ​​connection structure for automotive interior parts according to claim 3, characterized in that, The card block (12) has a filling cavity (14) inside, and an elastic element (15) is installed inside the filling cavity (14). The end of the card block (12) has an arc surface (16).

5. The quick-release snap-fit ​​connection structure for automotive interior parts according to claim 2, characterized in that, The inner wall of the slot (13) is provided with a concave surface (7).

6. The quick-release snap-fit ​​connection structure for automotive interior parts according to claim 1, characterized in that, The fastening ring (8) has a fastening opening (10) on its side wall, and the protrusion (2) has a triangular bevel (11) on its side wall.

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