Automobile fender lining injection molding buckle

Abstract

The utility model discloses an automobile fender lining injection molding buckle, which belongs to the field of automobile injection molding buckles, and comprises a circular pressing sheet, and a plurality of springback clamping jaws with the same structure are fixedly connected with the bottom of the circular pressing sheet on the outer side of a clamping hole at equal intervals. The bottoms of the multiple springback clamping jaws are fixedly connected through a plug, an ejector rod is slidably connected into the sliding hole, the bottom of the ejector rod is fixedly connected with the top of the plug, and a tension spring is connected to the outer side of the ejector rod in a sleeving mode. The service life of the buckle is prolonged, the ejector rod is pressed to eject the chock plug downwards, the clamping outer edge on each springback clamping jaw can contract towards the ejector rod, the springback clamping jaws at the bottom of the round pressing piece can be directly taken out from the interior of the installation through hole conveniently, tools such as a screwdriver are not needed, and disassembly and assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to the field of automobile injection molding buckles, and more specifically to an automobile fender liner injection molding buckle. Background Art

[0002] The bottom of the car fender is provided with a wheel arch edge, and a sound insulation cotton board is fixedly installed on the wheel arch edge by a buckle to reduce the probability of noise entering the cockpit during the driving of the car. The existing buckles used for connecting the sound insulation cotton board and the wheel arch edge of the fender are mostly threaded buckles. Although such a buckle structure has many advantages in use, it still has the following disadvantages:

[0003] 1. Since most of the existing buckles are threaded buckles, when the fender or the sound insulation board needs to be disassembled, frequent twisting of the threaded buckle can easily damage the threaded part and cause thread slippage, which affects the service life of the buckle;

[0004] 2. Since most of the existing buckles are threaded buckles, they need to be disassembled with the help of a screwdriver, which is not convenient and easily affects work efficiency;

[0005] Therefore, we propose an automobile fender liner injection molding buckle to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the problems existing in the prior art, the purpose of the utility model is to provide an injection-molded buckle for the liner of an automobile fender, which can reduce the probability of damage to the buckle due to frequent disassembly and assembly by setting the clamping part of the buckle to an automatic rebound clamping form, without the need for a threaded tightening structure, and is beneficial to increasing the service life of the buckle; and by pressing the push rod to push the plug downward, each rebound claw is driven to be straightened, so that the clamping outer edge of each rebound claw can be contracted toward the push rod, so that several rebound claws at the bottom of the circular pressing plate can be directly removed from the inside of the installation through hole, without the need for tools such as screwdrivers, making disassembly and assembly more convenient, and is beneficial to improving work efficiency.

[0008] 2. Technical solution

[0009] To solve the above problems, the utility model adopts the following technical solutions.

[0010] A car fender liner injection-molded buckle comprises a circular pressing plate, a clamping hole is provided at the inner center of the circular pressing plate, a plurality of rebound clamping claws with the same structure are equidistantly fixedly connected to the bottom of the circular pressing plate outside the clamping hole, and the bottoms of the plurality of rebound clamping claws are fixedly connected through a plug head, a circular card is arranged inside the clamping hole, a sliding hole is provided at the inner center of the circular card, a push rod is slidably connected inside the sliding hole, the bottom of the push rod is fixedly connected to the top of the plug head, and a tension spring is sleeved on the outer side of the push rod.

[0011] Furthermore, a clamping ring is provided on the inner wall of the clamping hole, and the circular card is fixedly clamped inside the clamping ring.

[0012] Furthermore, a first clamping protrusion is fixedly connected to both sides of the outer wall of the push rod, a contact ring is fixedly connected to the bottom of the circular card located outside the sliding hole, and a second clamping protrusion is fixedly connected to both sides of the outer wall of the contact ring corresponding to the positions of the two first clamping protrusions. The connection between the top of the tension spring and the outer wall of the contact ring is fixedly clamped by the two second clamping protrusions, and the connection between the bottom of the tension spring and the outer wall of the push rod is fixedly clamped by the two first clamping protrusions.

[0013] Furthermore, the rebound claw is provided with a clamping outer edge.

[0014] Furthermore, the circular pressing piece, the plurality of rebound claws, the plug head and the ejector rod are a polyhedron structure integrally injection-molded from a plastic material.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution, by setting the snap-on connection part of the buckle to an automatic rebound snap-on connection form, does not require the use of a threaded tightening structure, which can reduce the probability of damage to the buckle due to frequent disassembly and assembly, and is conducive to increasing the service life of the buckle;

[0018] (2) In this solution, the plug head is pushed downward by pressing the push rod, which drives each rebound claw to be straightened, so that the clamping outer edge of each rebound claw can be retracted toward the push rod, so that the multiple rebound claws at the bottom of the circular pressing piece can be directly removed from the installation through hole without the aid of tools such as screwdrivers, making disassembly and assembly more convenient, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the utility model (partial area has been cut away for easy viewing);

[0021] Figure 3 This is a schematic diagram of the connection structure of the rebound claw of the utility model;

[0022] Figure 4 This is a schematic diagram of the bottom structure of a circular card of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Round pressing piece; 2. Clamping hole; 3. Rebound claw; 301. Clamping outer edge; 4. Plug; 5. Round card; 501. Contact ring; 502. Clamping protrusion 2; 6. Sliding hole; 7. Push rod; 701. Clamping protrusion 1; 8. Tension spring; 9. Clamping ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1 , Figure 2 as well as Figure 5 A car fender liner injection molding buckle comprises a circular pressing piece 1, a clamping hole 2 is opened at the center position inside the circular pressing piece 1, a plurality of rebound clamping claws 3 with the same structure are fixedly connected at equal intervals at the bottom of the circular pressing piece 1 outside the clamping hole 2, and the bottoms of the plurality of rebound clamping claws 3 are fixedly connected through a plug 4, a circular card 5 is arranged inside the clamping hole 2, a sliding hole 6 is opened at the center position inside the circular card 5, a push rod 7 is slidably connected inside the sliding hole 6, the bottom of the push rod 7 is fixedly connected to the top of the plug 4, a tension spring 8 is sleeved on the outside of the push rod 7, and a clamping outer edge 301 is arranged on the rebound clamping claw 3.

[0029] The use principle of this type of automobile fender liner injection molding buckle is:

[0030] First, press the top of the push rod 7 to push the plug 4 downward, so that the multiple rebound claws 3 are squeezed into a straightened state, and then insert the buckle into the through hole at the contact position between the edge of the fender wheel arch and the sound insulation cotton board through the plug 4, and then release the pressure of the push rod 7, so that the tension spring 8 pulls the plug 4 upward through the push rod 7, forcing the multiple rebound claws 3 to reset their shapes and open. At this time, a clamping structure is formed between the bottom of the circular pressing sheet 1 and the top of the corresponding clamping outer edge 301, which is firmly clamped on the outside of the corresponding through hole, thereby achieving the effect of fixing the sound insulation cotton board to the edge of the fender wheel arch;

[0031] When it is necessary to remove the injection-molded buckle of the automobile fender liner, it is only necessary to press the push rod 7 downwards, and the several rebound claws 3 are forced to be straightened through the connection of the plug 4, so that the several clamping outer edges 301 are contracted toward the push rod 7, so that the several clamping outer edges 301 can be smoothly removed from the through hole at the contact part between the edge of the fender wheel arch and the sound insulation cotton board, thereby completing the disassembly process.

[0032] Embodiment 2:

[0033] In view of the above embodiment 1, for further description, refer to Figure 3 , Figure 4 as well as Figure 5 A clamping ring 9 is provided on the inner wall of the clamping hole 2, and the circular card 5 is fixedly clamped inside the clamping ring 9. Clamping protrusions 701 are fixedly connected on both sides of the outer wall of the push rod 7. A contact ring 501 is fixedly connected to the bottom of the circular card 5 located outside the sliding hole 6, and clamping protrusions 2 502 are fixedly connected on both sides of the outer wall of the contact ring 501 corresponding to the positions of the two clamping protrusions 1 701. The top of the tension spring 8 and the outer wall of the contact ring 501 are fixedly clamped by two clamping protrusions 2 502, and the bottom of the tension spring 8 and the outer wall of the push rod 7 are fixedly clamped by two clamping protrusions 1 701. The circular pressing piece 1, a plurality of rebound claws 3, the plug 4 and the push rod 7 are a polyhedron structure integrally injection-molded by plastic material.

[0034] The setting of the tension spring 8 can make the push rod 7 and the plug 4 have an upward pulling force, forcing the rebound claw 3 to be in a state of opening outward, thereby avoiding the loosening of the connection. The setting of the clamping protrusion 1 701 and the clamping protrusion 2 502 can provide a clamping structure for the connection at both ends of the tension spring 8, thereby facilitating the installation of the tension spring 8.

[0035] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An injection-molded buckle for an automobile fender liner, comprising a circular pressing sheet (1), characterized in that: A clamping hole (2) is provided at the center position of the circular pressing plate (1), and a plurality of rebound clamping claws (3) with the same structure are fixedly connected at equal distances to the bottom of the circular pressing plate (1) outside the clamping hole (2), and the bottoms of the plurality of rebound clamping claws (3) are fixedly connected through a plug (4). A circular clamping card (5) is provided inside the clamping hole (2), and a sliding hole (6) is provided at the center position of the circular clamping card (5). A push rod (7) is slidably connected inside the sliding hole (6), and the bottom of the push rod (7) is fixedly connected to the top of the plug (4), and a tension spring (8) is sleeved on the outside of the push rod (7).

2. The automobile fender liner injection molding buckle according to claim 1, characterized in that: The inner wall of the clamping hole (2) is provided with a clamping ring (9), and the circular card (5) is fixedly clamped inside the clamping ring (9).

3. The automobile fender liner injection molding buckle according to claim 1, characterized in that: A first snap-fitting protrusion (701) is fixedly connected to both sides of the outer wall of the push rod (7); a contact ring (501) is fixedly connected to the bottom of the circular card (5) located outside the sliding hole (6); a second snap-fitting protrusion (502) is fixedly connected to both sides of the outer wall of the contact ring (501) at the positions corresponding to the two first snap-fitting protrusions (701); the top of the tension spring (8) is fixedly snap-fitted to the outer wall of the contact ring (501) through the two second snap-fitting protrusions (502); and the bottom of the tension spring (8) is fixedly snap-fitted to the outer wall of the push rod (7) through the two first snap-fitting protrusions (701).

4. The automobile fender liner injection molding buckle according to claim 3, characterized in that: The rebound claw (3) is provided with a clamping outer edge (301).

5. The automobile fender liner injection molding buckle according to claim 1, characterized in that: The circular pressing piece (1), the plurality of rebound claws (3), the plug head (4) and the push rod (7) are a polyhedral structure integrally injection-molded from a plastic material.

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