CN213393047U - Buckle - Google Patents

Abstract

The utility model relates to a buckle, including buckle lid, chuck and the bolt portion that sets gradually, have the board groove that is used for fixed first panel between buckle lid and the chuck, bolt portion is equipped with the sealing washer on the chuck in being used for the card to go into the second panel, and chuck and sealing washer processing are as an organic whole. The plug pin part is provided with a small-diameter end and a large-diameter end, the small-diameter end is far away from the chuck, the large-diameter end is close to the chuck, and the diameter of the plug pin part gradually increases from the small-diameter end to the large-diameter end. The plug pin portion has a tapered portion between the large diameter end and the chuck, the tapered portion having a diameter that gradually decreases from the large diameter end toward the chuck. The buckle is fixed with the scratch-proof ring on the periphery of the small-diameter end. The anti-scraping ring is a flexible ring, and when the plug pin part is inserted into the plate, the anti-scraping ring covers the surface of the plug pin part under the extrusion of the plate.

Description

Buckle

Technical Field

The utility model relates to a fixed component especially relates to a buckle.

Background

Along with the trend of light weight of automobiles, the buckle is widely applied to automobile design as an important connection form of parts, and the connection in the form has the advantages of no influence on the overall appearance, convenience in assembly and no addition of extra parts.

The buckle connection is mainly realized by elastic deformation in the assembling process and deformation restoration after the buckle connection is in place, and for example, the buckle of the vehicle door trim panel is typical application of the buckle connection. The material of the clasp is mostly metal or plastic, the latter being more common in product design. The plastic buckle has the characteristics of non-conductivity, shock resistance, non-corrosion, low thermal conductivity, no magnetism, high strength-weight ratio, low material cost and convenience in forming, and in addition, the plastic buckle has a simple structure, can be produced in large batch by adopting various plastic raw materials according to the use environment, is low in price, and can be widely applied to automobiles.

As shown in fig. 1, the sponge gasket of the existing buckle of the vehicle door trim panel is not integrated with the chuck 1, the sponge gasket is sleeved on the chuck 1, the assembly and disassembly are easy to break and fall off, the sponge gasket is easy to age after water absorption, the sealing performance is poor, the existing buckle is subjected to a sealing test, the sealing performance is found to be poor, and obvious bubbles appear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buckle, chuck and sealing washer are as an organic whole, and then the leakproofness is good.

The utility model provides a buckle, including buckle lid, chuck and the bolt portion that sets gradually, buckle lid with have the board groove that is used for fixed first panel between the chuck, the bolt portion is used for the card to go into in the second panel, be equipped with the sealing washer on the chuck, the chuck with the sealing washer processing is as an organic whole.

Further, the plug pin portion has a small diameter end and a large diameter end, the small diameter end is far away from the chuck, the large diameter end is close to the chuck, and the diameter of the plug pin portion gradually increases from the small diameter end to the large diameter end.

Further, the plug pin portion has a tapered portion between the large diameter end and the chuck, the tapered portion having a diameter gradually decreasing from the large diameter end toward the chuck.

Furthermore, the buckle is fixed with a scratch-proof ring on the periphery of the small-diameter end.

Further, the anti-scraping ring is a flexible ring, and when the plug pin part is inserted into the plate, the anti-scraping ring covers the surface of the plug pin part under the extrusion of the plate.

Further, the inside of plug pin portion is equipped with hollow out construction, hollow out construction certainly the plug pin portion is close to the one end of chuck is to keeping away from the one end of chuck extends, just hollow out construction's appearance with the appearance of plug pin portion is unanimous.

Further, the sealing ring is a thermoplastic elastomer ring.

Further, the sealing ring and the chuck are combined into a whole through a double-shot injection molding process.

Furthermore, the sealing ring is arranged on the outer edge of the chuck and located on one side, close to the plug pin portion, of the chuck, an accommodating groove is formed in the sealing ring, and the outer edge of the chuck is located in the accommodating groove.

Furthermore, a lip edge is arranged at one end, far away from the opening of the containing groove, of the sealing ring, and the lip edge extends for a certain distance from the bottom of the containing groove to the direction far away from the chuck.

The sealing ring and the chuck of the buckle provided by the utility model are integrated, the buckle is not easy to break and fall off when being disassembled and assembled, and the sealing performance is good; in addition, due to the arrangement of the anti-scraping ring, the clamping surface can be prevented from being scratched by a metal plate during first assembly, the idea of repeated use is embodied, and the balanced insertion force is ensured; the inside of buckle has hollow out construction, can reduce the atress of chuck when pulling out and inserting for the buckle is not fragile.

Drawings

Fig. 1 is a schematic structural view of a conventional buckle of a door trim panel.

Fig. 2 is a schematic view of the fastening structure in the embodiment of the present invention.

FIG. 3 is a test data of a hole site deviation value after a conventional door trim panel buckle is mounted.

Fig. 4 is the experimental data of the hole site deviant after the embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 2, the present invention provides a buckle 100 for connecting two plates, in this embodiment, the buckle 100 is made of plastic and includes a buckle cover 10, a chuck 20 and a bolt portion 30, which are sequentially disposed.

The snap cap 10 is annular as a whole, and a concave hole is formed in the middle of the snap cap.

The appearance of the chuck 20 is similar to a circular truncated cone, a plate groove 40 capable of fixing a first plate is arranged between the buckle cover 10 and the chuck 20, the bolt part 30 can be clamped into a second plate, and the chuck 20 is provided with a sealing ring 21 and is integrally formed with the sealing ring 21. Specifically, the seal ring 21 is made of a thermoplastic elastomer material, which is molded integrally with the chuck 20 by a two-color injection molding process. The seal ring 21 is located on the outer edge of the chuck 20 and on the side of the chuck 20 adjacent the plug portion 30. After injection molding, a receiving groove 22 is formed in the gasket 21, and the outer edge of the chuck 20 is located in the receiving groove 22. The seal ring 21 has a lip 23 at an end remote from the opening of the receiving groove, and the lip 23 extends from the bottom of the receiving groove 22 by a predetermined distance in a direction away from the chuck 20.

The plug pin portion 30 has a small diameter end 32 and a large diameter end 33, the small diameter end 32 is far away from the chuck 20, the large diameter end 33 is close to the chuck 20, the diameter of the plug pin portion 30 is gradually increased from the small diameter end 32 to the large diameter end 33, the plug pin portion 30 further has a tapered portion between the large diameter end 33 and the chuck 20, and the diameter of the tapered portion is decreased from the large diameter end to the chuck. A scratch-proof ring 31 is fixedly connected to the plug pin portion 30 on the periphery of the small diameter end 32. The scratch-proof ring 31 is made of a flexible material, when the plug pin part 30 is inserted into the second plate, the scratch-proof ring 31 covers the surface of the plug pin part 30 under the extrusion of the second plate and is attached to the surface of the plug pin part 30, and the scratch-proof ring 31 acts as a layer of diaphragm spaced between the second plate and the plug pin part 30. Through the special anti-scraping ring 31, the surface of the plug pin part 30 can be prevented from being scratched by a metal plate during assembly, the idea of repeated use is embodied, and the balanced insertion force is ensured.

The buckle 100 is internally provided with the hollow structure 50, the hollow structure 50 extends from one end of the plug pin part 30 close to the chuck 20 to one end far away from the chuck 20, the appearance of the hollow structure 50 is basically consistent with that of the plug pin part 30, and the wall thickness of each part of the plug pin part 30 is thin, so that the plugging force of the buckle 100 is reduced, and the phenomenon of fracture and damage of the buckle 100 is solved.

In the embodiment, the seal ring 21 and the chuck 20 are integrated by adopting a two-color injection molding process, so that the seal ring 21 is not easy to fall off from the chuck 20, and the seal ring 21 is made of a thermoplastic elastomer material, has good aging resistance and sealing performance and can resist shock.

This embodiment closes sealing washer 21 and chuck 20 as an organic whole, when the skew of a small amount of hole sites appears because of chuck 20 and panel beating deviation, this structure fault-tolerant ability is good, can totally with the sealed laminating of automobile body panel beating, can see after the process carries out the test of drenching with rain (drenching with rain by force, plum rain) to the plaque in the door, the utility model discloses a 100 watertight effects of buckle are better to there is not any seepage phenomenon.

Following in to prior art's the door plaque buckle with the utility model discloses a after the plaque buckle loading in the door, carry out the real car of hole site deviant under the same condition and verify, measure the rain problem of leaking when unilateral pressure is 0, concrete experimental data is as shown in fig. 3 and fig. 4.

The hole site deviation fault tolerance of the common buckle is only 0.8mm through test measurement, and water leakage occurs when no pressure exists on one side; the utility model discloses a 100 hole site deviation fault-tolerant volume of buckle can reach 1.5mm, promote one time, so the in-process leakproofness being used is stronger.

In addition, the applicant also analyzes the structure of the existing buckle, and finds that the structure of the buckle is unreasonable, so that the pulling force during the disassembly is overlarge, the buckle is broken, and the broken part falls into the vehicle door, so that abnormal sound occurs in the vehicle door. The pull-out force test results of the existing buckle structure are shown in table one.

Watch 1

The experimental result shows that the buckle is too large in pulling force, the buckle is easy to break and damage, the pulling force is large in fluctuation, and the product stability is poor.

In order to further verify the utility model discloses buckle 100's performance, under the same test state, has now carried out the pull-out force test to it, and the test result sees table two.

Watch two

From the test result, the utility model discloses a buckle 100 is pulled out power and is satisfied design operation requirement, and pulls out power size comparatively stable, does not appear the phenomenon of fracture destruction.

In summary, the sealing ring 21 and the chuck 20 of the buckle 100 provided by the present invention are integrated, so that the buckle is not easy to break and fall off during assembly and disassembly, and has good sealing performance; in addition, the anti-scraping ring 31 is arranged, so that the clamping surface can be prevented from being scratched by a metal plate during assembly, the idea of repeated use is embodied, and the balanced insertion force is ensured; the hollow structure 50 is provided inside the buckle 100, so that the insertion force of the buckle 100 can be reduced, and the buckle 100 is not easily damaged.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a buckle, its characterized in that, is including buckle lid, chuck and the bolt portion that sets gradually, buckle lid with have the board groove that is used for fixed first panel between the chuck, the bolt portion is used for the card to go into in the second panel, be equipped with the sealing washer on the chuck, the chuck with the sealing washer processing is as an organic whole.

2. The buckle of claim 1, wherein the plug pin portion has a small diameter end and a large diameter end, the small diameter end being distal from the chuck and the large diameter end being proximal to the chuck, the plug pin portion increasing in diameter from the small diameter end to the large diameter end.

3. The buckle of claim 2, wherein the plug pin portion has a tapered portion between the large diameter end and the chuck, the tapered portion having a diameter that decreases from the large diameter end toward the chuck.

4. The clip of claim 2, wherein said clip has a scratch resistant ring secured to a periphery of said reduced diameter end.

5. The buckle as claimed in claim 4, wherein the anti-scraping ring is a flexible ring, and when the plug pin portion is inserted into the plate, the anti-scraping ring covers the surface of the plug pin portion under the compression of the plate.

6. The buckle according to claim 1, wherein a hollow structure is provided inside the plug pin portion, the hollow structure extends from an end of the plug pin portion close to the chuck to an end of the plug pin portion away from the chuck, and the hollow structure has a shape identical to that of the plug pin portion.

7. The buckle of claim 1, wherein the sealing ring is a thermoplastic elastomer ring.

8. The clasp of claim 1, wherein the seal ring and the chuck are integrated by a two-shot molding process.

9. The buckle of claim 1, wherein the sealing ring is disposed on an outer edge of the chuck and located on a side of the chuck adjacent to the plug portion, wherein a receiving groove is formed in the sealing ring, and the outer edge of the chuck is located in the receiving groove.

10. The clip of claim 9, wherein the sealing ring includes a lip at an end remote from the opening of the receptacle, the lip extending a distance from the bottom of the receptacle in a direction away from the chuck.

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