Split type head self-centering buckle

Abstract

The utility model relates to a split type head self-centering buckle which comprises a buckle head and a buckle foot which are arranged in a split mode, the buckle head comprises a self-centering assembly and a foot connecting piece, the self-centering assembly comprises an upper disc and an elastic arm, and the upper disc is connected with the foot connecting piece arranged in the center of the upper disc through the elastic arm; the clamping foot comprises a head connecting piece, a sealing disc and a split clamping foot which are connected in sequence, and the head connecting piece is detachably connected with the foot connecting piece. Through the lower disc structure, the problem that a conventional part with a burr hole is difficult to install is solved; the problem of poor sealing performance of a conventional part with sponge after being used for a long time is solved through the waterproof damping ring with secondary rubber coating; the problems that when the buckle is installed in a plate hole, the position deviates, and the axis cannot be aligned with the plate hole are solved through the self-centering assembly. And meanwhile, after the decoration plate is repeatedly disassembled and assembled, the sealing waterproof performance of the same level as that of an initial installation state can still be kept.

Description

Technical Field

[0001] This utility model belongs to the field of buckle technology, and in particular relates to a split-type head self-aligning buckle. Background Technology

[0002] Currently, various vehicle trim panels and sheet metal are fixedly connected to each other using clips in cars, SUVs, and MPVs. Typically, a retainer is located on the inside of the trim panel; one end of the clip is mounted on the retainer, and the other end engages with a hole in the body sheet metal, thus achieving a fixed connection between the trim panel and the vehicle body, or between trim pieces themselves. For example, prior art CN 219220980U discloses a guide-optimized waterproof clip that prevents the anti-burr ring from falling off during installation, achieving a secure connection between the trim panel and the vehicle body while also providing a sealing and waterproofing effect.

[0003] However, during actual installation, due to the cumulative tolerances of the trim panels and body panels, the relative positions of some clips are significantly offset, resulting in not all clips being easily installed. Specifically, due to a large deviation between the clip axis and the center of the sheet metal hole, in severe cases, the clip axis may interfere with the edge of the sheet metal hole, preventing the clip from being installed. Furthermore, after repeated installation and removal, the clips' retaining force decreases due to varying degrees of damage to the clip feet, leading to a reduction in sealing and waterproofing performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a split-type head self-aligning buckle, which ensures that even when there is a large offset between the relative position of the trim panel and the body hole, the buckle can still be guided into the body hole along the axial direction, making it easy to install the trim panel and the body.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a split-type head self-centering buckle is provided, including a buckle head and a buckle foot arranged separately. The buckle head includes a self-centering component and a foot connector. The self-centering component includes an upper disc and a spring arm. The upper disc is connected to the foot connector located in the center of the upper disc through the spring arm. The buckle foot includes a head connector, a sealing disc and a split buckle foot connected in sequence. The head connector and the foot connector are detachably connected.

[0006] Preferably, the number of segments of the segmented locking foot is at least two.

[0007] Preferably, the segmented locking foot is provided with a lower disc.

[0008] Preferably, the outer edge of the sealing disc is provided with a waterproof and shock-absorbing ring through a secondary coating process.

[0009] Preferably, the waterproof shock-absorbing ring is a short cover shape or a long umbrella shape.

[0010] Preferably, the foot connector is a hollow central column located at the center of the upper disc, and the lower part of the hollow central column is provided with a limiting band; the head connector is a convex shaft that matches the hollow central column, and the top end of the convex shaft is provided with a limiting flange that matches the limiting band.

[0011] The beneficial effects are as follows: This utility model solves the problem of difficult installation of conventional parts with burr holes through the lower disc structure; it solves the problem of poor sealing of conventional parts with sponge after long-term use through the secondary rubber-coated waterproof and shock-absorbing ring; and it solves the problem of positional offset and inability of the axis to align with the plate hole when the buckle is installed through the self-aligning component. At the same time, after repeated disassembly and reassembly of the decorative panel, it can still maintain the same level of sealing and waterproof performance as the initial installation state. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the combined state of an embodiment of a split-type head self-aligning buckle.

[0013] Figure 2 This is a three-dimensional view of a split-type head self-aligning buckle embodiment in its split state.

[0014] Figure 3 This is a three-dimensional view of the combined state of a second embodiment of a split-type head self-aligning buckle.

[0015] Figure 4 This is a three-dimensional view of the split-type head self-aligning buckle embodiment two.

[0016] Among them, 1-clasp head; 101-upper disc; 102-elastic arm; 103-middle column; 104-foot connector; 2-clamp foot; 201-head connector; 202-sealing disc; 203-segmented clamp foot; 204-waterproof shock-absorbing ring; 205-lower disc; 3-decorative panel base; 4-sheet metal.

[0017] The same markings in each diagram represent the same component. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] This utility model provides a split-type head self-centering buckle, including a buckle head 1 and a buckle foot 2 arranged separately. The buckle head 1 includes a self-centering component and a foot connector 104. The self-centering component includes an upper disc 101 and an elastic arm 102. The upper disc 101 is connected to the foot connector 104 located in the center of it through the elastic arm. The buckle foot 2 includes a head connector 201, a sealing disc 202 and a split buckle foot 203 connected in sequence. The head connector 201 and the foot connector 104 are detachably connected.

[0020] The segmented locking foot 203 has at least two segments, and the segmented locking foot 203 is used to engage with the four holes in the sheet metal. For example, Figure 1 , 2 In one specific embodiment shown, the number of clips is three, the clip foot 2 is a hollow conical shape, and the end of the clip foot 2 is provided with a conical guide. The outer diameter of the end of the clip foot 2 is smaller than the mounting hole diameter, the outer diameter of the middle section is larger than the mounting hole diameter, and the outer diameter of the upper section is slightly smaller than the mounting hole diameter, which helps the clip to be smoothly inserted into the sheet metal hole 4.

[0021] like Figure 3 , 4 In another specific embodiment shown, the number of the segmented clips 203 is two segments. The center of the clip 2 is provided with a central post. The central post and the two segments of the clips 203 on both sides are combined to form a W-shaped clip. Similarly, the end of the clip 2 is provided with a conical guide. The outer diameter of the end of the clip 2 is smaller than the mounting hole diameter, the outer diameter of the middle section is larger than the mounting hole diameter, and the outer diameter of the upper section is slightly smaller than the mounting hole diameter, which helps the clip to be smoothly inserted into the sheet metal hole 4.

[0022] The split-type locking foot 203 has a lower disc 205 near its end on the outer side. Since the locking head 1 and the locking foot 2 are separate designs in this application, the lower disc 205 can be integrated with the locking foot 2. When the lower disc 205 and the locking foot 2 are separate designs, the anti-burr small ring design in patent CN 219220980 U can be referenced. The inner diameter of the lower disc 205 is smaller than the inner diameter of the mounting hole of the sheet metal 4. When there are burrs or sharp edges on the edge of the hole of the sheet metal 4, the lower disc 205 can prevent the locking foot 2 from directly contacting and scratching the edge of the hole, which would increase the mounting force of the locking foot 2 or cause damage. This can effectively prevent installation difficulties caused by burrs.

[0023] During installation, the sealing disc 202 and the upper bevel of the clip 2 together fix the hole in the sheet metal 4 in a fixed position, completing the fastening connection between the clip and the sheet metal 4. Simultaneously, the sealing disc 202 provides a waterproof seal, preventing liquids such as splashed water or rainwater from flowing into the sheet metal 4 through the hole. A waterproof and shock-absorbing ring 204 is provided on the outer edge of the sealing disc 202 through a secondary overmolding process. The waterproof and shock-absorbing ring 204 is a short cover-shaped or long umbrella-shaped ring, which can be injection molded onto the outer edge of the sealing disc 202 of the clip using an injection molding machine. The sealing ring extends vertically downwards along the lower disc 205, forming a cap shape. When the clip is inserted into the hole in the sheet metal 4, the waterproof and shock-absorbing ring 204 can be further compressed, completely enclosing the hole and adhering tightly to the surface of the sheet metal 4, providing excellent sealing and vibration damping.

[0024] The foot connector 104 is a hollow central column 103 located at the center of the upper disc 101, and the lower part of the hollow central column 103 is provided with a limiting band; the head connector 201 is a convex shaft that matches the hollow central column 103, and the top end of the convex shaft is provided with a limiting flange that matches the limiting band.

[0025] In the specific design, the pull-out force between the retaining foot 2 and the sheet metal hole 4 should be greater than the disassembly force between the head connector 201 and the foot connector 104. This ensures that during disassembly, the retaining foot 2 remains in the sheet metal hole 4, while the head connector 201 disengages from the foot connector 104. This design ensures that the retaining foot 2 remains in the sheet metal hole 4 even during disassembly, preventing the sealing disc 202 and the waterproof shock-absorbing ring 204 from falling off, effectively improving the sealing and waterproofing performance of this application.

[0026] This utility model requires pre-installation at the trim panel factory. First, the upper disc 101 of the buckle is slid sideways into the side opening of the trim panel, ensuring that the central post 103 of the buckle is fully engaged in the groove of the trim panel base 3. This creates a longitudinal limit between the upper and lower edges of the trim panel base 3 wall and the buckle's engagement seat. The upper disc 101 with its elastic arm is under tension within the groove of the trim panel base 3, ensuring that the central axis of the buckle in its natural state is basically aligned with the center of the trim panel opening, thus completing the pre-installation at the trim panel factory.

[0027] Subsequently, the trim panel with clips is directly assembled at the vehicle assembly plant. Under normal circumstances, the clip 2 on the trim panel is aligned with the sheet metal hole 4 and inserted vertically. During the insertion process, the clip 2 is compressed inward. After passing through the sheet metal hole 4, the clip 2 springs back and opens. The side wall of the clip 2 and the hole wall of the sheet metal hole form interference to play a positioning role. When the clip is installed in place, the sealing ring of the clip will also be in close contact with the sheet metal 4 to play a role in sealing and waterproofing.

[0028] When there is a large offset between the relative position of the trim panel and the body hole, since the upper disc 101 is connected to the center pillar 103 through the elastic arm 102, when the upper disc 101 plays the role of centering, the outer diameter of the center pillar 103 can be smaller than the inner diameter of the groove of the trim panel base 3. At the same time, the center pillar 103 can move within the groove of the trim panel base 3. Thus, the installation of the clip 2 into the sheet metal hole 4 is not restricted, which solves the problem of position offset when the clip is installed into the plate hole and the axis cannot be aligned with the plate hole.

Claims

1. A split-type head self-aligning buckle, characterized in that, It includes a snap head and a snap foot arranged separately. The snap head includes a self-centering component and a foot connector. The self-centering component includes an upper disc and a spring arm. The upper disc is connected to the foot connector located in the center of the upper disc through the spring arm. The locking foot includes a head connector, a sealing disc, and a split locking foot connected in sequence, and the head connector and the foot connector are detachably connected.

2. The split-type head self-aligning buckle according to claim 1, characterized in that, The number of segments in the segmented locking foot is at least two.

3. A split-type head self-aligning buckle according to claim 2, characterized in that, The split-type locking foot is equipped with a lower disc.

4. A split-type head self-aligning buckle according to claim 1, characterized in that, The outer edge of the sealing disc is equipped with a waterproof and shock-absorbing ring through a secondary coating process.

5. A split-type head self-aligning buckle according to claim 4, characterized in that, The waterproof shock-absorbing ring is either a short cover shape or a long umbrella shape.

6. A split-type head self-aligning buckle according to claim 1, characterized in that, The foot connector is a hollow central column located at the center of the upper disc, and the lower part of the hollow central column is provided with a limiting band; the head connector is a convex shaft that matches the hollow central column, and the top end of the convex shaft is provided with a limiting flange that matches the limiting band.

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