Automobile trim mounting clip

Abstract

This application relates to the field of automotive trim installation accessories technology, and discloses an automotive trim installation clip, including a female clip and a female clip. The female clip has a variable diameter structure that deforms, opens, and then retracts. The female clip has an insertion hole, and the female clip includes an insertion post. A limit structure is provided in the insertion hole, and a snap-fit ​​structure is provided on the insertion post. Whether the female clip and the female clip are snapped together to form an integral structure and then pass through the opening of the automotive trim, or the female clip passes through the opening of the automotive trim separately and then forms an integral structure with the female clip, the installation clip forms a clearance fit with the opening of the automotive trim. This transforms the traditional squeezing and snap-fit ​​fixing method inside the opening of the automotive trim into a snap-fit ​​fixing method with the variable diameter structure outside the opening of the automotive trim. This solves the problem that during the process of installing and removing the clip, the installation hole on the automotive trim is damaged or even destroyed, which affects the stability and accuracy of the installation of the automotive trim.

Description

Technical Field

[0001] This application relates to the field of automotive trim installation accessories, and in particular to an automotive trim installation clip. Background Technology

[0002] Automotive mounting clips are used to secure decorative parts such as car door panels, interior trim panels, and door sill strips to the car's sheet metal. They are a commonly used fastener in the assembly of automotive decorative parts and have advantages such as simple structure, easy installation, and strong versatility.

[0003] Mounting clips typically consist of a female clip and a female clip. After insertion and assembly, the female and female clips form a single integrated structure. The mounting clip passes through pre-drilled holes in the automotive interior trim parts and then locks into the automotive sheet metal, thus achieving the purpose of assembling and securing the interior trim parts. Currently, automotive mounting clips exhibit a high degree of homogeneity in structure. They generally include a main structure for positioning trim parts, a connecting structure on the main structure for locking into mounting holes in the automotive sheet metal, and a flexible snap-fit ​​structure for locking into the mounting holes of the trim parts.

[0004] For example, the Chinese invention patent application with publication number CN110848224A and patent name "A screw connection device for automotive interior parts" includes a retainer, undercut portions symmetrically arranged on both sides of the retainer, and elastic ribs arranged on the undercut portions. When the assembler presses on both sides of the elastic ribs, the elastic ribs undergo elastic deformation, and the distance between the two elastic ribs decreases. At this time, the elastic ribs can be smoothly inserted into the slot of the target workpiece. After the assembler releases the pressing pressure, the elastic ribs are no longer subjected to compressive force, and the elastic ribs spring back to their original shape, thus locking the elastic ribs. Within the slot of the target workpiece, there is also a Chinese invention patent application document with publication number CN102003439A and patent name "A Novel Buckle", which includes a base for positioning decorative parts. The upper part of the base has a snap-fit ​​part for inserting into the mounting hole of the automotive sheet metal. The snap-fit ​​part has an elastic snap-fit ​​foot that is snapped onto the mounting hole. It also includes a baffle with an auxiliary mounting hole. The baffle is sleeved on the front end of the snap-fit ​​part through the auxiliary mounting hole and is blocked by the automotive sheet metal so that it cannot pass through the mounting hole. The diameter of the auxiliary mounting hole is smaller than the diameter of the mounting hole.

[0005] As can be seen from the above, when using clip-on mounting hardware on automotive trim parts, the clip-on mounting hardware applies a squeezing force to the mounting holes. Since automotive trim parts are not installed in one go, installers need to adjust the installation position, angle, and posture of the trim parts during actual work. This requires installers to repeatedly insert and remove the clip-on mounting hardware. During the process of inserting and removing the clip-on mounting hardware, the mounting holes on the automotive trim parts may be damaged or even destroyed, thus affecting the stability and accuracy of the installation of the automotive trim parts. Summary of the Invention

[0006] To address the issue that installers may damage or even destroy the mounting holes on automotive trim parts when inserting or removing the clips, thereby affecting the stability and accuracy of the trim installation, this application provides an automotive trim installation clip.

[0007] This application provides an automotive trim mounting clip, which adopts the following technical solution: A car trim mounting clip includes a female clip and a female clip, which are inserted into each other. The integrated structure formed by the insertion of the female clip and the female clip is inserted and locked into an opening on the car trim and forms a clearance fit with the opening on the car trim. The female clip has a variable diameter structure that can deform, open, and then retract. The female clip has an insertion hole for the female clip to be inserted into the variable diameter structure. The female clip includes a insertion post for insertion into the insertion hole. A limiting structure is provided in the insertion hole, and a locking structure is provided on the insertion post. The limiting structure and the locking structure form a locking fit to prevent the female clip and the female clip from separating. The insertion post is inserted into the variable diameter structure, causing the variable diameter structure to deform, open, and lock onto the outside of the car trim.

[0008] By adopting the above technical solution, whether the female and male buckles are first integrated into a single structure through a snap-fit ​​structure and a limiting structure before being inserted into the openings on the automotive trim, or the male buckle is first inserted into the opening on the automotive trim separately and then integrated into a single structure with the female buckle through a snap-fit ​​structure and a limiting structure, the installation buckles form a clearance fit with the openings on the automotive trim. This means that no squeezing force is applied to the opening structure on the automotive trim. The traditional squeezing snap-fit ​​fixing method inside the opening of the automotive trim is transformed into a snap-fit ​​fixing method between the variable diameter structure outside the opening of the automotive trim and the automotive trim. This solves the problem of damage or even destruction of the mounting holes on the automotive trim during the insertion and removal of the buckles by the installers, which in turn affects the stability and accuracy of the installation of the automotive trim.

[0009] Preferably, the insertion post of the male buckle is integrally formed with the female buckle and has a thin-walled structure, and the insertion post of the male buckle and the insertion hole of the female buckle are coaxially arranged.

[0010] By adopting the above technical solution, the integral molding of the female and male buckles is better, and during use, the male buckle will not accidentally detach from the female buckle. Furthermore, the insertion post and insertion hole are coaxially formed, and the installer can break the thin-walled structure by pressing the male buckle, so that the insertion post can be inserted into the insertion hole, thereby achieving the purpose of the female and male buckles snapping together to form an integral structure, which improves the convenience of use.

[0011] Preferably, the female buckle and the male buckle are separate components, and the male buckle is pre-coaxially inserted into the insertion hole of the female buckle via a plug post and is snapped and fixed to the female buckle.

[0012] By adopting the above technical solution, the separate processing and assembly method has two advantages: firstly, it facilitates processing and simplifies the process; secondly, it is more flexible in application, allowing for both the combination and installation of the female and male buckles, and the installation method of first inserting the male buckle and then combining it with the female buckle.

[0013] Preferably, the limiting structure is located inside the insertion hole connected to the variable diameter structure, and the limiting structure is configured as a first protrusion located on the hole wall of the insertion hole; the snap-fit ​​structure is configured as a sub-snap-fit ​​pattern formed on the insertion post along its length direction, and the first protrusion and the sub-snap-fit ​​pattern form a snap-fit ​​engagement.

[0014] By adopting the above technical solution, after the plug is inserted into the plug hole, the sub-clamping grooves on the plug can form a clamping engagement with the first protrusion to achieve the purpose of clamping the female and female buckles. Since the variable diameter structure has the characteristic of being able to retract after being squeezed open, and the sub-clamping grooves are extended along the length of the plug, after the sub-clamping grooves begin to form a clamping engagement with the first protrusion, as the plug is continuously inserted, the first protrusion continuously forms a clamping engagement with the sub-clamping grooves on the plug. This can improve the stability of the clamping installation of the female and female buckles, and reduce the requirements for processing precision. That is, the clamping structure and the limiting structure do not need to strictly limit the clamping point to achieve a stable clamping engagement, which has good practicality and ease of operation.

[0015] Preferably, the variable diameter structure forms a narrow diameter section and a thick diameter section after deformation and opening. The narrow diameter section passes through the opening on the automotive trim to the outside of the automotive trim and forms a clearance fit with the opening of the automotive trim. The thick diameter section is snapped onto the outside of the automotive trim, and the first protrusion is located on the side of the thick diameter section away from the automotive trim.

[0016] By adopting the above technical solution, the coarse diameter section is used to achieve a snap-fit ​​with the automotive trim, while the introduction of the short fine diameter design means that the variable diameter structure does not directly open and snap onto the automotive trim. That is, a certain assembly allowance is formed between the automotive trim and the coarse diameter section, which facilitates assembly by installers. In addition, the existence of the fine diameter section allows part of the variable diameter structure to pass through the opening of the automotive trim without the need to design a separate through section for connecting the variable diameter structure and passing through the opening of the automotive trim. This simplifies the structure and facilitates processing and manufacturing.

[0017] Preferably, the limiting structure is located in the insertion hole connected to the variable diameter structure, and the limiting structure is configured as a second protrusion located on the hole wall of the insertion hole, and the snap-fit ​​structure is configured as a third protrusion located on the insertion post, wherein the second protrusion and the third protrusion form an elastic snap-fit ​​engagement.

[0018] By adopting the above technical solution, the female and male buckles are fixed by snap-fitting points. This makes assembly more convenient and improves assembly accuracy.

[0019] Preferably, a guide groove is formed on the inner wall of the insertion hole extending along the axial direction of the insertion hole, the second protrusion is disposed on the inner wall of the guide groove, and the third protrusion and the guide groove are in sliding fit.

[0020] By adopting the above technical solution, a guide groove is introduced, a second protrusion is arranged on the groove wall, and a third protrusion is arranged at the corresponding position on the plug post. This enables the point-to-point snap-fit ​​of the second and third protrusions, which helps to improve the accuracy of the snap-fit ​​between the female and male buckles. Furthermore, the third protrusion and the guide groove form a sliding fit, which can further improve the accuracy and stability of the snap-fit ​​between the female and male buckles.

[0021] Preferably, when the female and male buckles are locked into the opening on the automotive trim, the insertion post and the insertion hole form an interference fit.

[0022] By adopting the above technical solution, in addition to using the snap-fit ​​structure and the limiting structure to achieve snap-fit ​​connection, the plug and the plug hole can also achieve the purpose of further locking by using the interference fit between the plug and the plug hole itself. In addition, the female and female buckles can maintain a stable state during assembly, which helps to reduce shaking.

[0023] Preferably, the variable diameter structure includes a plurality of elastic flaps, which are arranged in a circular array around the axis of the female buckle to form a columnar structure, and adjacent elastic flaps constituting the columnar structure form a mating gap.

[0024] By adopting the above technical solution, the elastic petals arranged in a circular array cooperate to form a variable diameter structure, which meets the requirement that the variable diameter structure expands under the internal compression and retracts when the compression force is removed. At the same time, the elastic petals have better wrapping properties and can wrap the plug-in post inserted inside, improving the stability of the female and female buckle snapping connection.

[0025] Preferably, the female buckle includes a female mounting plate, the variable diameter structure is coaxially disposed on the female mounting plate, the male buckle includes a male mounting plate, and the insertion post is coaxially disposed on the male mounting plate; a clearance groove is formed on the side of the female mounting plate away from the variable diameter structure, and the male mounting plate and the clearance groove form an embedded fit.

[0026] By adopting the above technical solution, the female mounting plate of the female buckle can abut against the automotive trim, playing a role in limiting and sealing. When the female buckle and the male buckle are engaged, the male mounting plate of the male buckle is embedded in the relief groove of the female buckle, which not only helps to improve the overall appearance of the automotive trim installation buckle, but also helps to improve the stability of the engagement between the female buckle and the male buckle. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the automotive trim mounting clip in Embodiment 1 of this application; Figure 2 These are schematic diagrams of the assembled female and male fasteners in Embodiments 1 and 2 of this application; Figure 3 It is a cross-sectional schematic diagram mainly used to show the limiting structure and the snap-fit ​​structure; Figure 4 This is a cross-sectional schematic diagram of the automotive trim mounting clip installation structure in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the automotive trim mounting clip in Embodiment 3 of this application; Figure 6 These are cross-sectional structural schematic diagrams of the automotive trim mounting clips in Embodiments 4 and 5 of this application; Figure 7 This is a schematic diagram of the structure of the automotive trim mounting clip in Embodiment Six of this application; Figure 8 This is a schematic diagram of the automotive trim mounting clip in Embodiment 7 of this application when the snap-fit ​​structure is threaded; Figure 9 This is a schematic diagram of the automotive trim mounting clip in Embodiment 7 of this application when the snap-fit ​​structure is a protrusion; Figure 10 This is a cross-sectional structural diagram of the automotive trim mounting clip in Embodiment 7 of this application when the female clip and the male clip are integrally formed; Figure 11 This is a cross-sectional structural diagram of the automotive trim mounting clip in Embodiment 7 of this application when the female clip and the male clip are assembled separately. Figure 12 This is a cross-sectional structural diagram of the automotive trim mounting clip with a fourth protrusion in Embodiment 7 of this application; Figure 13 This is a cross-sectional schematic diagram of the automotive trim mounting clip installation structure in Embodiment 7 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Female snap fastener; 11. Female mounting plate; 12. Elastic retaining edge; 13. Clearance groove; 14. Center opening; 15. Female snap-fit ​​texture; 2. Female snap fastener; 21. Female mounting plate; 22. Insertion post; 3. Variable diameter structure; 31. Elastic flap; 32. Hollow channel; 33. Narrow diameter section; 34. Large diameter section; 4. Insertion hole; 5. Limiting structure; 51. First protrusion; 511. Tip; 512. Abutment slope; 52. Second protrusion; 53. Fourth protrusion; 6. Snap-fit ​​structure; 61. Female snap-fit ​​texture; 62. Third protrusion; 7. Thin-walled structure; 8. Guide groove; 81. Opening; 82. Elastic protrusion; 9. Mounting back plate; 91. Threaded hole. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-13 This application will be described in further detail below.

[0030] This application discloses an automotive trim mounting clip.

[0031] Example 1 Reference Figure 1 and Figure 2 As shown, an automotive trim mounting clip includes a female clip 1 and a female clip 2. The female clip 1 includes a deformable, expandable, and retractable diameter-adjustable structure 3, and a through-hole 4 is formed on the female clip 1, with a limiting structure 5 provided inside the insertion hole 4. The female clip 2 includes a insertion post 22 for insertion into the insertion hole 4, and a locking structure 6 is provided on the insertion post 22. When assembling the female clip 1 and the female clip 2, the insertion post 22 is inserted into the insertion hole 4, and the female clip 1 and the female clip 2 are locked together by the limiting structure 5 and the locking structure 6. After locking together, the mounting clip forms a clearance fit with the opening on the automotive trim, and the insertion post 22 of the female clip 2 can extend into the diameter-adjustable structure 3 through the insertion hole 4, so that the diameter-adjustable structure 3 can elastically open. After opening, the diameter-adjustable structure 3 can be locked onto the outside of the automotive trim, thereby achieving the purpose of fixing the clip at the opening position of the automotive trim without causing compression to the opening of the automotive trim.

[0032] Reference Figure 1 and Figure 2As shown, the female buckle 1 includes a female mounting plate 11. In this embodiment, the female mounting plate 11 is a disc-shaped structure, but other shapes such as square or elliptical can also be selected. A ring of elastic retaining edge 12 is integrally formed around the bottom of the female mounting plate 11. The variable diameter structure 3 is coaxially integrally formed on the bottom surface of the female mounting plate 11. When assembling and installing the buckle, the variable diameter structure 3 of the female buckle 1 first passes through the opening of the automotive trim and forms a clearance fit with the opening. When the female buckle 1 is inserted to the bottom, the elastic retaining edge 12 of the female mounting plate 11 abuts against the automotive trim. Then, the insertion post 22 of the male buckle 2 is inserted into the insertion hole 4 and extends into the variable diameter structure 3 until the female buckle 1 and the male buckle 2 are engaged with the limiting structure 5 through the snap-fit ​​structure 6 and fixed at the opening of the automotive trim by the opened variable diameter structure 3. At this time, the elastic retaining ring undergoes elastic deformation so that the female mounting plate 11 is tightly pressed onto the automotive trim.

[0033] Reference Figure 1 and Figure 2 As shown, the sub-mount 2 includes a sub-mounting plate 21, and a plug-in post 22 is coaxially and integrally formed on the bottom surface of the sub-mounting plate 21 facing the female mounting plate 11. In this embodiment, the sub-mounting plate 21 has a disc-shaped structure, but other shapes such as square or elliptical can also be selected. It is important to ensure that the shapes of the female mounting plate 11 and the sub-mounting plate 21 are compatible. A clearance groove 13 is formed on the front side of the female mounting plate 11 away from the automotive trim, and the shape of the clearance groove 13 is compatible with the shape of the sub-mounting plate 21. When the female buckle 1 and the sub-mounting plate 2 are combined, the sub-mounting plate 21 can be embedded in the clearance groove 13 of the female mounting plate 11.

[0034] Reference Figure 1 and Figure 2 As shown, the variable diameter structure 3 includes several elastic petals 31 integrally formed on the bottom surface of the female mounting plate 11. The elastic petals 31 are arranged in a circumferential array around the axis of the female buckle 1 to form a columnar structure. Adjacent elastic petals 31 fit together to form a fitting gap, and the columnar structure formed has a hollow channel 32 inside; combined with Figure 3 As shown, when the female buckle 1 and the female buckle 2 are engaged, the insertion post 22 of the female buckle 2 is inserted into the hollow channel 32 of the columnar structure. That is, the hollow channel 32 of the variable diameter structure 3 and the central opening 14 on the female mounting plate 11 together constitute the insertion hole 4 of the female buckle 1.

[0035] Reference Figure 2 and Figure 3 As shown, after the variable diameter structure 3 is deformed and opened, it forms a narrow diameter section 33 and a thick diameter section 34. The narrow diameter section 33 passes through the opening on the automotive trim and forms a clearance fit with the opening on the automotive trim, while the thick diameter section 34 is snapped onto the outside of the automotive trim.

[0036] Reference Figure 3 and Figure 4As shown, in this embodiment, the limiting structure 5 is a first protrusion 51 formed within the hollow channel 32 of the variable diameter structure 3. Specifically, the first protrusion 51 is integrally formed on the inner side of the tail end of the coarse diameter section 34 of the elastic petal 31 away from the female mounting plate 11. The first protrusion 51 extends into the hollow channel 32 and forms a tip 511 for engaging with the snap-fit ​​structure 6. The tip 511 and the inner wall of the elastic petal 31 are integrally formed with an abutting bevel 512. The snap-fit ​​structure 6 is a sub-snap-fit ​​groove 61 extending along the length direction of the insertion post 22. Specifically, the sub-snap-fit ​​groove 61 is a thread formed on the insertion post 22. When the female buckle 1 and the female buckle 2 are engaged, the tail end of the insertion post 22 inserted into the insertion hole 4 first abuts against the abutting slope 512 to achieve the purpose of clamping and restricting the insertion posture of the insertion post 22, thereby improving the engagement stability. Then, as the insertion post 22 is further inserted, the tip 511 engages with the thread. As the insertion post 22 continues to be inserted, the tip 511 continuously engages with the subsequent thread and then separates until the female mounting plate 21 is embedded in the female mounting plate 11. At this point, the locking of the female buckle 1 and the female buckle 2 is completed.

[0037] Reference Figure 3 and Figure 4 As shown, during the process of inserting the plug 22 into the plug hole 4, the plug 22 presses against the inclined surface 512 and the tip 511, so that the elastic flap 31 opens outward. The restoring force generated after the elastic flap 31 deforms in turn clamps and presses the plug 22, so that the tip 511 can form a stable snap-fit ​​with the thread.

[0038] Reference Figure 1 As shown, in this embodiment, the female buckle 1 and the female buckle 2 are manufactured by integral injection molding. The bottom end of the insertion post 22 of the female buckle 2 and the female mounting plate of the female buckle 1 are integrally formed with a thin-walled structure 7, and the insertion post 22 of the integrally formed female buckle 2 is coaxially arranged with the insertion hole 4 of the female buckle 1. The thin-walled structure 7 can be a connecting rib. One end of the connecting rib is formed and connected to the female mounting plate 11 at the position of the insertion hole 4, and the other end of the connecting rib is formed and connected to the head of the insertion post 22 that extends a short distance into the insertion hole 4, so that the head of the insertion post 22 just extends into the insertion hole 4. The distance is generally 0.3-0.5cm, and the extension length of the insertion post 22 can be adjusted according to different injection molding processes. Figure 4 As shown, when the installer inserts the variable diameter structure 3 of the female buckle 1 into the opening on the automotive trim and installs it to the bottom, he then presses the sub-mounting plate 21 of the male buckle 2 or directly pushes the plug post 22 of the male buckle 2 so that the connecting rib breaks under force, and the plug post 22 of the male buckle 2 can be inserted into the plug hole 4 of the female buckle 1.

[0039] The implementation principle of Example 1 is as follows: The operator first pre-installs the pre-processed, integrated mounting clips at the opening of the automotive trim. Specifically, the variable-diameter structure 3 of the female clip 1 is inserted into the opening until the elastic retaining edge 12 of the female clip 1 is pressed against the trim. Then, the male clip 2 is pressed or pushed towards the opening, causing the thin-walled structure 7, integrally formed with the female mounting plate of the female clip 1, to break or tear. The male clip 2 is then pressed or pushed towards the opening until the limiting structure 5 and the locking structure 6 engage. At this point, the limiting structure 5 and the locking structure 6 work together to prevent the female clip 1 and male clip 2 from separating, while simultaneously causing the variable-diameter structure 3 to deform and engage with the outside of the trim. This achieves the goal of locking the mounting clips at the opening of the automotive trim without compressing the opening.

[0040] Example 2 Reference Figure 2 As shown, a car trim mounting clip differs from Embodiment 2 in that the pre-assembly structure of the female clip 1 and the female clip 2 is different. In this embodiment, the female clip 1 and the female clip 2 are no longer integrally formed, but are set separately. However, they need to be pre-assembled into a complete set of components. That is, the female clip 2 is pre-coaxially inserted into the insertion hole 4 of the female clip 1 through the insertion post 22, and the limiting structure 5 and the snap-fit ​​structure 6 cooperate to achieve the purpose of snap-fit ​​and fixing with the female clip 1.

[0041] Example 3 Reference Figure 5 As shown, the main difference between this automotive trim mounting clip and those in embodiments 1 and 2 lies in the different snap-fit ​​structure between the female clip 1 and the female clip 2. In this embodiment, the limiting structure 5 is a second protrusion 52 located within the hollow channel 32 of the variable diameter structure 3. Specifically, the second protrusion 52 is integrally formed on the inner side of the rear end of the thicker diameter section 34 of the elastic flap 31 away from the female mounting plate 11. The snap-fit ​​structure 6 is a third protrusion 62 located on the insertion post 22. Specifically, the third protrusion 62 is integrally formed on the outer cylindrical surface of the insertion post 22 near the rear end, and the second protrusion 52 and the third protrusion 62 form an elastic snap-fit. The specific shape can be a spherical structure, a block structure, etc., and can be adjusted according to the tightness of the snap-fit, the smoothness of assembly and disassembly, etc.

[0042] Example 4 Reference Figure 6As shown, the main difference between this automotive trim mounting clip and Embodiment 3 is that the engagement structure of the second protrusion 52 and the third protrusion 62 is different. In this embodiment, on the inner wall of the elastic flap 31 of the variable diameter structure 3, along the axial direction of the insertion hole 4, that is, the axial direction of the central opening 14 on the female mounting plate 11 and the hollow channel 32 of the variable diameter structure 3, a guide groove 8 is formed. The guide groove 8 extends to the central opening 14 of the female mounting plate and forms an opening 81. The second protrusion 52 is located in the guide groove 8 near the tail end, and the third protrusion 62 slides with the guide groove 8 through the opening 81.

[0043] When the plug pin 22 is inserted into the plug hole 4, the third protrusion 62 slides into the guide groove 8 through the opening 81 and slides along the guide groove 8 until the third protrusion 62 presses through the second protrusion 52 and forms an elastic snap-fit ​​with the second protrusion 52. At this time, the elastic retaining edge 12 of the female buckle 1 is pressed against the automotive trim. During this process, the second protrusion 52 undergoes elastic deformation and returns to its state before deformation after the third protrusion 62 is pressed through, preventing the third protrusion 62 from detaching from the guide groove 8 after being pressed through.

[0044] Example 5 Reference Figure 6 As shown, a car trim mounting clip differs from Embodiment 4 in that the pre-installation structure of the female clip 1 and the female clip 2 is different. In this embodiment, in addition to the snap-fit ​​mechanism formed by the limiting structure 5 and the snap-fit ​​structure 6, the insertion post 22 and the insertion hole 4 also achieve pre-tightening through the interference fit between the insertion post 22 and the insertion hole 4. That is, before the limiting structure 5 and the snap-fit ​​structure 6 form the snap-fit ​​mechanism, the interference fit between the insertion post 22 and the insertion hole 4 increases the resistance encountered by the insertion post 22 during insertion into the insertion hole 4, without affecting the insertion of the insertion post 22, but improving the stability of the insertion process.

[0045] The interference fit between the plug post 22 and the plug hole 4 can be achieved either by the plug-in fit of the two or by arranging the elastic protrusion 82 in the guide groove 8. The former is achieved by squeezing and wrapping the elastic flap 31 of the variable diameter structure 3, while the latter is achieved by the elastic squeezing fit between the elastic protrusion 82 and the plug post 22.

[0046] Example 6 Reference Figure 7As shown, the main difference between this automotive trim mounting clip and those in embodiments 1 and 2 is that the snap-fit ​​structure between the female clip 1 and the female clip 2 is different. In this embodiment, the snap-fit ​​structure 6 is still a sub-snap-fit ​​texture 61 extending along the length of the insertion post 22. Specifically, the sub-snap-fit ​​texture 61 is still a thread formed on the insertion post 22, but the limiting structure 5 is set as a fourth protrusion 53 located on the inner side of the elastic petal 31. The fourth protrusion 53 is a spherical protrusion, and the spherical protrusions are evenly arranged along the length of the elastic petal 31.

[0047] When the plug pin 22 is inserted into the hollow channel 32 of the variable diameter structure 3 and the center opening 14 on the female mounting plate 11, the sub-clamping groove 61 on the plug pin 22 abuts against the fourth protrusion 53. As the plug pin 22 is continuously inserted, the sub-clamping groove 61 abuts against more and more of the fourth protrusion 53, making the opening of the elastic flap 31 of the variable diameter structure 3 larger and larger, until the variable diameter structure 3 opens and is clamped to the outside of the automotive trim. At this time, the elastic retaining edge 12 of the female buckle 1 is pressed against the automotive trim, thereby completing the locking installation of the mounting buckle.

[0048] It should be noted that in this embodiment, the snap-fit ​​structure 6 and the limiting structure 5 are engaged by the elastic compression of the fourth protrusion 53 and the sub-snap-fit ​​texture 61.

[0049] Example 7 A mounting clip for automotive trim pieces has a locking method different from the locking structures of embodiments 1-6 described above. Although, referring to... Figure 8 As shown, in this embodiment, the mounting structure of female buckle 1 and female buckle 2 in Embodiment 1 can still be used, and the mounting structure of female buckle 1 and female buckle 2 in Embodiment 2 can of course also be used in Embodiment 7; and referring to Figure 9 , Figure 10 as well as Figure 11 As shown, in this embodiment, the installation structure of the female buckle 1 and the female buckle 2 in embodiments 3 and 4 can still be used. That is, the limiting structure 5 is the second protrusion 52 located in the hollow channel 32 of the variable diameter structure 3, and the snap-fit ​​structure 6 is the third protrusion 62 located on the insertion post 22. The female buckle 1 and the female buckle 2 are also locked by the snap-fit ​​cooperation of the second protrusion 52 and the third protrusion 62. And referring to Figure 12 As shown, in this embodiment, the mounting structure of the female buckle 1 and the female buckle 2 in embodiment 5 can still be used. However, due to Figures 8-13 As shown, it can be clearly seen that in this embodiment, a female snap-fit ​​pattern 15 is formed on the outer surface of the elastic lobe 31 of the variable diameter structure 3. The female snap-fit ​​pattern 15 is also a thread, and combined with... Figure 13As shown, the insertion post 22 of the male buckle 2 passes through the opening on the car trim piece from one side and then inserts into the insertion hole 4 of the female buckle 1 on the other side of the car trim piece to form a snap-fit ​​engagement. The female buckle 1 is connected and locked to the threaded hole 91 on the car sheet metal thread, which serves as the mounting back plate 9, through the female snap-fit ​​texture 15 on the outer side of the variable diameter structure 3, thereby achieving the purpose of fixing the car trim piece mounting buckle.

[0050] The implementation principle of Example 7 is as follows: The operator inserts the pin 22 of the male buckle 2 into the opening of the automotive trim until the male mounting plate 21 of the male buckle 2 is pressed against one side of the automotive trim. Meanwhile, the reducing structure 3 of the female buckle 1 is pre-threaded and locked into the threaded hole 91 of the mounting back plate 9 on the other side of the automotive trim. During the process of inserting the pin 22 of the male buckle 2 into the insertion hole 4 of the female buckle 1, the limiting structure 5 and the snap-fit ​​structure 6 form a snap-fit ​​engagement, so that the female buckle 1 and the male buckle 2 form an integral structure and are locked at the opening position of the automotive trim. When the female buckle 1 and the female buckle 2 are engaged through the limiting structure 5 and the snap-fit ​​structure 6, the female mounting plate 11 of the female buckle 1 and the female mounting plate 21 of the female buckle 2 clamp and fix the automotive trim, and the plug pin 22 is inserted into the mounting hole of the automotive trim. The variable diameter structure 3 is squeezed to open the variable diameter structure 3, and the coarse diameter section 34 of the variable diameter structure 3 is snapped onto the outside of the mounting back plate 9, while the fine diameter section 33 forms an interference fit with the threaded hole 91 on the mounting back plate 9 under the elastic compression, which further improves the connection stability between the mounting buckle and the mounting back plate 9.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A car trim mounting clip, comprising a female clip (1) and a female clip (2), characterized in that: The female buckle (1) and the female buckle (2) form an interlocking fit, and the integrated structure formed by the interlocking of the female buckle (1) and the female buckle (2) is inserted and locked into the opening on the car trim and forms a gap fit with the opening on the car trim. The female buckle (1) has a variable diameter structure (3) that can be deformed, opened, and then retracted. The female buckle (1) has a insertion hole (4) for inserting the female buckle (2) into the variable diameter structure (3). The female buckle (2) includes an insertion post (22) for inserting into the insertion hole (4). A limiting structure (5) is provided in the insertion hole (4). A snap-fit ​​structure (6) is provided on the insertion post (22). The limiting structure (5) and the snap-fit ​​structure (6) form a snap-fit ​​engagement to restrict the separation of the female buckle (1) and the female buckle (2). The insertion post (22) is inserted into the variable diameter structure (3) so that the variable diameter structure (3) deforms, opens, and snaps onto the outside of the automotive trim. The variable diameter structure (3) includes a plurality of elastic flaps (31), which are arranged in a circular array around the axis of the female buckle (1) and form a columnar structure. Adjacent elastic flaps (31) forming the columnar structure have a fitting gap. The female buckle (1) includes a female mounting plate (11), the variable diameter structure (3) is coaxially disposed on the female mounting plate (11), the male buckle (2) includes a male mounting plate (21), the plug-in post (22) is coaxially disposed on the male mounting plate (21); a clearance groove (13) is formed on the side of the female mounting plate (11) away from the variable diameter structure (3), and the male mounting plate (21) and the clearance groove (13) form an embedded fit; The bottom of the female mounting plate (11) is integrally formed with a ring of elastic baffle (12) along its circumference; when assembling and installing the buckle, the variable diameter structure (3) of the female buckle (1) passes through the opening of the car trim and forms a clearance fit with the opening. When the female buckle (1) is inserted to the bottom, the elastic baffle (12) of the female mounting plate (11) abuts against the car trim. The insertion post (22) of the female buckle (2) is inserted into the insertion hole (4) and extends into the variable diameter structure (3) until the female buckle (1) and the female buckle (2) are engaged with the limiting structure (5) through the snap-fit ​​structure (6) and fixed at the opening of the car trim by the opened variable diameter structure (3). At this time, the elastic baffle (12) undergoes elastic deformation and makes the female mounting plate (11) tightly pressed against the car trim. The outer side of the elastic flap (31) of the variable diameter structure (3) forms a female snap-fit ​​pattern (15), which is a thread. The insertion post (22) of the female buckle (2) passes through the opening on the car trim from one side and then inserts into the insertion hole (4) of the female buckle (1) on the other side of the car trim to form a snap-fit. The female buckle (1) is connected and locked to the threaded hole (91) of the car sheet metal through the female snap-fit ​​pattern (15) on the outer side of the variable diameter structure (3) to fix the car trim mounting buckle.

2. The automotive trim mounting clip according to claim 1, characterized in that: The insertion post (22) of the sub-buckle (2) is integrally formed with the female buckle (1) and has a thin-walled structure (7), and the insertion post (22) of the sub-buckle (2) and the insertion hole (4) of the female buckle (1) are coaxially arranged.

3. The clip of claim 1, wherein: The female buckle (1) and the female buckle (2) are set separately, and the female buckle (2) is pre-coaxially inserted into the insertion hole (4) of the female buckle (1) through the insertion post (22) and is snapped and fixed to the female buckle (1).

4. The automobile trim part mounting buckle according to claim 2 or 3, characterized in that: The limiting structure (5) is located in the insertion hole (4) connected to the variable diameter structure (3), and the limiting structure (5) is configured as a first protrusion (51) located on the hole wall of the insertion hole (4); the snap-fit ​​structure (6) is configured as a sub-snap-fit ​​texture (61) formed on the insertion post (22) along its length direction, and the first protrusion (51) and the sub-snap-fit ​​texture (61) form a snap-fit ​​engagement.

5. The clip of claim 4, wherein: The variable diameter structure (3) forms a narrow diameter section (33) and a thick diameter section (34) after deformation and opening. The narrow diameter section (33) passes through the opening on the car trim to the outside of the car trim and forms a clearance fit with the opening of the car trim. The thick diameter section (34) is snapped onto the outside of the car trim, and the first protrusion (51) is located on the side of the thick diameter section (34) away from the car trim.

6. The automobile trim mounting clip according to claim 2 or 3, wherein: The limiting structure (5) is located in the insertion hole (4) connected to the variable diameter structure (3), and the limiting structure (5) is configured as a second protrusion (52) located on the hole wall of the insertion hole (4), and the snap-fit ​​structure (6) is configured as a third protrusion (62) located on the insertion post (22), and the second protrusion (52) and the third protrusion (62) form an elastic snap-fit ​​engagement.

7. The clip of claim 6, wherein: A guide groove (8) is formed on the inner wall of the insertion hole (4) extending along the axial direction of the insertion hole (4). The second protrusion (52) is disposed on the inner wall of the guide groove (8), and the third protrusion (62) and the guide groove (8) form a sliding fit.

8. The automotive trim mounting clip of claim 7, wherein: When the female buckle (1) and the female buckle (2) are locked at the opening on the automotive trim, the plug post (22) and the plug hole (4) form an interference fit.

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