Adjustable buckle structure of automotive interior part

Abstract

The utility model discloses an adjustable buckle structure of automotive trim part belongs to buckle structure field, including fixed base, self -tapping screw, the top of fixed base is installed with rotary adjustable buckle mechanism, the rotary adjustable buckle mechanism includes movable card body, rotation axis, adjusting knob, unlocking thimble, boss, damping ring, the inside installation of movable card body has rotation axis, and the top of rotation axis is connected with adjusting knob, and the outside installation of movable card body has unlocking thimble and boss, and the surface of movable card body is provided with annular groove, and the annular groove is installed with damping ring, through the cooperation of above -mentioned each device, can realize the adjustment of buckle length, effectively solved the assembly problem that caused because trim part and installation base body exist size deviation, improved the compatibility of buckle.

Description

Technical Field

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

[0002] In the process of automobile manufacturing and after-sales maintenance, the fixing and disassembly of interior parts are key links. Clip-on structures, as a commonly used connection method in the assembly of interior parts, play an important role.

[0003] However, traditional fixed clips have many problems. Since most automotive interior parts are injection molded, they are prone to slight dimensional deviations due to factors such as material shrinkage, mold precision, and manufacturing processes. At the same time, the mounting base may also have manufacturing tolerances. Because fixed clips have fixed dimensions, they are prone to loose fit, which can lead to loosening of interior parts and abnormal noises, or tight fit, which can cause clip breakage and deformation of interior parts. Moreover, traditional clips are mostly one-time designs, and disassembly requires the use of tools to forcibly pry them open, which can easily damage the clips or interior parts, increasing material and labor costs.

[0004] Therefore, this utility model provides an adjustable snap-fit ​​structure for automotive interior parts to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides an adjustable buckle structure for automotive interior parts, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustable snap-fit ​​structure for automotive interior parts, including a fixing base and self-tapping screws. A rotary adjustable snap-fit ​​mechanism is installed on the top of the fixing base. The rotary adjustable snap-fit ​​mechanism includes a movable snap body, a rotating shaft, an adjusting knob, an unlocking pin, a boss, and a damping ring. The rotating shaft is installed inside the movable snap body, and the adjusting knob is connected to the top of the rotating shaft. The unlocking pin and the boss are installed on the outer side of the movable snap body. An annular groove is formed on the surface of the movable snap body, and a damping ring is installed in the annular groove.

[0009] As a preferred technical solution of this application, a detachable elastic barb mechanism is installed on the outer side of the rotating shaft. The detachable elastic barb mechanism includes a connecting seat, an elastic barb, and an elastic claw. An elastic barb is installed circumferentially on the top of the connecting seat, and an elastic claw is installed on the bottom of the connecting seat.

[0010] As a preferred technical solution of this application, the fixing seat includes a base, a shaft hole, an arc-shaped stop block, and a fastening thread. A cylindrical groove is formed inside the base, and a shaft hole is formed on the surface of the cylindrical groove.

[0011] As a preferred technical solution of this application, the surface of the cylindrical groove inside the base is fitted with fastening threads, and the top of the base is symmetrically fitted with arc-shaped blocks.

[0012] As a preferred technical solution of this application, the surface of the movable card body is provided with a threaded groove, which can be used in conjunction with the fastening thread.

[0013] As a preferred technical solution of this application, the top of the movable card body is provided with an irregular groove that can cooperate with the elastic claw, and the end of the unlocking pin is aligned with the end of the elastic claw.

[0014] As a preferred technical solution of this application, the number of elastic barbs is three, and the three elastic barbs are the same size.

[0015] (III) Beneficial Effects

[0016] By setting a rotary adjustable buckle mechanism, the buckle length can be adjusted, which effectively solves the assembly problem caused by dimensional deviations between interior parts and mounting base, and improves the adaptability of the buckle.

[0017] The self-tapping screws of the mounting base provide a stable installation foundation, ensuring that the fastening threads are always in the preset assembly position. The interference fit between the rotating shaft and the shaft hole, as well as the integrated design of the adjustment knob and the rotating shaft, further enhance the connection strength of the overall structure, preventing loosening or displacement during assembly and providing a solid foundation for subsequent adjustment and use.

[0018] The threaded grooves on the surface of the movable clip and the fastening threads of the fixed seat form a helical pair. The pitch design allows for a quantitative axial displacement. Combined with the adjustment angle limitation formed by the arc-shaped stop of the boss, the adjustment stroke can be precisely controlled to meet the installation requirements of interior parts with different size deviations. Whether rotating clockwise to raise the movable clip or rotating counterclockwise to lower it, the position adjustment can be stably achieved, effectively solving the problem of poor adaptability caused by the fixed size of traditional clips. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an adjustable snap-on structure for automotive interior parts;

[0020] Figure 2 This is a schematic diagram of the fixing seat in an adjustable snap-fit ​​structure for automotive interior parts;

[0021] Figure 3 This is a schematic diagram of the rotary adjustment buckle mechanism in an adjustable buckle structure for automotive interior parts;

[0022] Figure 4This is a schematic diagram of a detachable elastic barb mechanism in an adjustable snap-fit ​​structure for automotive interior parts;

[0023] Figure 5 This is a structural separation diagram of an adjustable snap-fit ​​structure for automotive interior parts.

[0024] In the picture:

[0025] 1. Fixed base; 101. Base; 102. Shaft hole; 103. Arc-shaped stop; 104. Fastening thread; 2. Self-tapping screw; 3. Rotary adjustable snap-fit ​​mechanism; 301. Movable snap body; 302. Rotary shaft; 303. Adjustment knob; 304. Unlocking pin; 305. Boss; 306. Damping ring; 4. Detachable elastic barb mechanism; 401. Connecting seat; 402. Elastic barb; 403. Elastic claw. Detailed Implementation

[0026] 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.

[0027] This utility model provides an adjustable snap-fit ​​structure for automotive interior parts, including a fixed base 1, a rotary adjustable snap-fit ​​mechanism 3, and a detachable elastic barb mechanism 4. When using this adjustable snap-fit ​​structure for automotive interior parts, the basic fixing and assembly are performed first. The fixed base 1 is attached to the body sheet metal through the annular flange at the bottom of the base 101. The self-tapping screw 2 passes through the screw hole of the flange and connects to the body, so that the fastening thread 104 is in the preset assembly position. The shaft hole 102 provides an installation reference for the rotating shaft 302, and the arc-shaped stop 103 is in the waiting limit state.

[0028] The movable locking body 301 is screwed into the fastening thread 104 of the fixed seat 1 through the threaded groove on its surface. The lower end of the rotating shaft 302 is pressed into the shaft hole 102, and the two are interference fit. The upper end passes through the center hole of the movable locking body 301 and is connected to the adjustment knob 303. It is integrally formed. The damping ring 306 is embedded in the annular groove on the surface of the movable locking body 301. Its lower end face contacts the top end face of the base 101, generating a certain amount of interference frictional damping. The boss 305 is located on one side of the arc-shaped stop 103, forming the initial limit.

[0029] The elastic claw 403 at the bottom of the connecting seat 401 is aligned with the irregular groove at the top of the movable clamping body 301. After vertical pressing, the elastic claw 403 retracts under the action of the guide slope and is inserted into the groove in the irregular groove, completing the assembly of the detachable elastic barb mechanism 4. At this time, the elastic barb 402 is in an open state, and the end of the unlocking pin 304 is aligned with the end of the elastic claw 403.

[0030] When the interior trim has dimensional deviations that require adjustment, the operator rotates the adjustment knob 303, causing the movable locking body 301 to rotate around the rotating shaft 302. When rotating clockwise, the threaded groove of the movable locking body 301 interacts with the fastening thread 104, moving upward along the rotating shaft 302. The boss 305 rotates with the movable locking body 301 until it contacts the arc-shaped stop 103 on one side, reaching the maximum adjustment stroke. When rotating counterclockwise, the movable locking body 301 moves downward, and the boss 305 contacts the arc-shaped stop 103 on the other side, reaching the minimum adjustment position. The damping ring 306 rubs against the top of the base 101 throughout the movement, generating damping force to prevent vibration from causing it to rotate on its own.

[0031] The elastic barb 402 rises and falls synchronously with the movable clamping body 301. When the movable clamping body 301 rises to the preset position, the elastic barb 402 is inserted into the mounting hole of the interior trim. The barb's tilt angle forms an interference fit with the hole wall, generating a clamping force to fasten the interior trim.

[0032] When the elastic barb mechanism needs to be replaced, press the unlocking pin 304. The pin will push the elastic claw 403 to retract and disengage from the groove of the irregular groove. Pull the connecting seat 401 upward to disassemble the detachable elastic barb mechanism 4. When replacing the elastic barb 402 with a different specification, repeat the installation steps.

[0033] If the entire clip needs to be removed, rotate the adjustment knob 303 in the opposite direction until the movable clip 301 is lowered to the limit position, and loosen the self-tapping screw 2 to remove the fixing seat 1 from the vehicle body. Each part can be recycled or replaced individually.

[0034] Working principle: In this structure, the threaded groove of the movable locking body 301 and the fastening thread 104 of the fixed seat 1 form a helical pair, converting the rotational motion into axial displacement. The pitch is 5mm, and the movement is 5mm per revolution. The contact between the boss 305 and the arc-shaped stop 103 limits the maximum adjustment angle to ±360°, preventing the thread from disengaging. The frictional contact between the damping ring 306 and the base 101 provides anti-loosening force, ensuring the stability of the position after adjustment. The elastic claw 403 and the groove of the irregular groove enable the quick disassembly and assembly of the detachable elastic barb mechanism 4. The unlocking pin 304 provides the mechanical force to release the engagement.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable buckle structure of an automotive interior part, comprising a fixing seat (1) and a self-tapping screw (2), characterized in that: The top of the fixed base (1) is equipped with a rotary adjustable buckle mechanism (3); The rotary adjustable buckle mechanism (3) includes a movable buckle body (301), a rotating shaft (302), an adjusting knob (303), an unlocking pin (304), a boss (305), and a damping ring (306). The rotating shaft (302) is installed inside the movable buckle body (301), and the adjusting knob (303) is connected to the top of the rotating shaft (302). The unlocking pin (304) and the boss (305) are installed on the outside of the movable buckle body (301). An annular groove is opened on the surface of the movable buckle body (301), and a damping ring (306) is installed in the annular groove.

2. The adjustable fastener structure for an automotive interior part according to claim 1, characterized by: A detachable elastic barb mechanism (4) is installed on the outside of the rotating shaft (302). The detachable elastic barb mechanism (4) includes a connecting seat (401), an elastic barb (402), and an elastic claw (403). The top of the connecting seat (401) is circumferentially equipped with an elastic barb (402), and the bottom of the connecting seat (401) is equipped with an elastic claw (403).

3. The adjustable fastener structure for an automotive interior part according to claim 1, characterized by: The fixed base (1) includes a base (101), a shaft hole (102), an arc-shaped stop (103), and a fastening thread (104). The base (101) has a cylindrical groove inside, and the shaft hole (102) is formed on the surface of the cylindrical groove.

4. The adjustable fastener structure for an automotive interior part according to claim 3, characterized by: The surface of the cylindrical groove inside the base (101) is fitted with fastening threads (104), and the top of the base (101) is symmetrically fitted with arc-shaped stops (103).

5. The adjustable fastener structure for an automotive interior part according to claim 1, characterized by: The surface of the movable card body (301) is provided with a threaded groove, which can be used in conjunction with the fastening thread (104).

6. The adjustable fastener structure for an automotive interior part according to claim 1, characterized by: The top of the movable card body (301) is provided with a shaped groove that can cooperate with the elastic claw (403), and the end of the unlocking pin (304) is aligned with the end of the elastic claw (403).

7. The adjustable snap-fit ​​structure for automotive interior parts according to claim 2, characterized in that: There are three elastic barbs (402), and the three elastic barbs (402) are the same size.

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