Threshold buckle

Abstract

The utility model relates to the technical field of automobile exterior trimming part assembly, in particular to a threshold buckle, and aims to solve the problem of airtightness of a mounting hole of the threshold buckle. The threshold buckle comprises a buckle body, a sealing ring and closed-cell foam. Wherein the buckle main body is provided with a first clamping part and a positioning part, the first clamping part and the positioning part are used for being connected with a body-in-white, and the positioning part can position the threshold skin to the body-in-white; a second clamping part is arranged on the other side of the buckle main body and is used for being connected with a threshold skin; the sealing ring is connected with the buckle main body through double-color injection molding, and the closed-cell foam is bonded with the buckle main body through a double-sided adhesive tape. Through the structural design, on the premise that the assembling performance of the threshold buckle is guaranteed, the sealing structure of the threshold buckle is improved, the waterproof performance of the threshold buckle is improved, and meanwhile the water leakage risk of a vehicle is reduced.

Description

(I) Technical field

[0001] The invention relates to the technical field of automobile assembly, and in particular provides a door sill buckle. (II) Background technology

[0002] As people's living standards continue to improve, users have higher and higher requirements for car details. The sealing and waterproofness of cars have gradually become important indicators for evaluating cars.

[0003] At present, the door sill buckles of automobiles mostly adopt a sealing ring structure, but the sealing performance of the door sill buckles with such a structure is greatly affected by the assembly of the door sill, resulting in the problem of sealing failure.

[0004] Therefore, this field needs a new technical solution to solve the above problems. (III) Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem of water leakage caused by poor sealing of the threshold buckle after the threshold is assembled.

[0006] The present invention provides a threshold buckle, characterized in that the threshold buckle comprises a buckle body, a sealing ring and a closed-cell foam; wherein a first clamping portion and a positioning portion are arranged on the buckle body, the first clamping portion and the positioning portion are used to connect with the body-in-white, and the positioning portion can position the threshold skin on the body-in-white; a second clamping portion is arranged on the other side of the buckle body, and the second clamping portion is used to connect with the threshold skin; the sealing ring is connected to the buckle body by two-color injection molding, and the closed-cell foam is bonded to the buckle body by double-sided tape.

[0007] In the technical solution of the above-mentioned threshold buckle, the first clamping part is a clamping structure arranged on the buckle body, and the clamping structure can be clamped and matched with the buckle mounting hole on the white body; the second clamping part includes a claw structure arranged on the buckle body and an avoidance groove structure on the buckle body, and the avoidance groove is arranged to allow the claw structure to avoid it; the positioning part is a positioning protrusion arranged on the buckle body, and the positioning protrusion can cooperate with the buckle mounting hole on the white body.

[0008] In the technical solution of the threshold buckle mentioned above, two claw structures are arranged on the buckle body at opposite sides of the positioning protrusion.

[0009] In the technical solution of the threshold clip above, the bottom of the positioning protrusion forms a protruding structure downward, and the protruding structure can abut against the lower edge of the clip installation hole.

[0010] In the technical solution of the threshold buckle, the protruding structure at the bottom of the positioning protrusion is in an arc shape.

[0011] In the technical solution of the above-mentioned threshold buckle, the second clamping part includes a claw structure arranged on the buckle body and an avoidance groove structure arranged on the buckle body. When the threshold buckle is engaged with the threshold cover, the claw structure on the buckle body can abut against the clamping flange of the threshold cover to prevent it from falling off, and the avoidance groove on the buckle body can provide avoidance space for the claw structure.

[0012] In the preferred technical solution of the above-mentioned threshold trim buckle, a sealing ring is arranged on the side of the first clamping portion, and the sealing ring is connected to the buckle body by two-color injection molding. The cross-section of the sealing ring is in a "concave" shape, and when the threshold buckle is installed, it is squeezed and deformed by the sealing ring and the white body, thereby playing the role of the first seal.

[0013] In the preferred technical solution of the above-mentioned threshold trim buckle, a closed-cell foam is arranged on the first clamping part side, and the closed-cell foam is bonded to the buckle body by double-sided tape. When the threshold buckle is installed, the closed-cell foam is squeezed with the white body to play a second sealing role.

[0014] The threshold buckle of the present invention includes a buckle body, a sealing ring and a closed-cell foam; wherein a first clamping part and a positioning part are arranged on the buckle body, the first clamping part and the positioning part are used to connect with the white body, and the positioning part can position the threshold skin on the white body; a second clamping part is arranged on the other side of the buckle body, and the second clamping part is used to connect with the threshold skin; the sealing ring is connected to the buckle body by two-color injection molding, and the closed-cell foam is bonded to the buckle body by double-sided tape. Through the above structural design, the sealing structure of the threshold buckle is improved, the waterproof performance of the threshold buckle is increased, and the risk of vehicle leakage is also reduced while ensuring the assembly of the threshold buckle. (IV) Description of the drawings

[0015] Figure 1 The threshold buckle structure of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 2 The threshold buckle structure of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 3 The cross section of the threshold buckle structure of the present invention is Figure 1 ;

[0018] Figure 4 The cross section of the threshold buckle structure of the present invention is Figure 2 ;

[0019] Figure 5 This is a schematic diagram of the installation of the threshold buckle of the present invention;

[0020] Figure 6 It is a schematic diagram of the sheet metal structure of the body in white of the present invention.

[0021] Reference numerals:

[0022] 1. Buckle body; 11. Limiting protrusion;

[0023] 2. a first clamping portion; 21. a clamping protrusion;

[0024] 3. Second clamping portion; 31. Clamping claw; 32. Avoidance groove; 33. First limit position; 34. Second limit position; 35. Support;

[0025] 4. Positioning portion; 41. Positioning protrusion; 411. Protruding portion;

[0026] 5. Sealing ring;

[0027] 6. Closed-cell foam;

[0028] 7. Door sill skin; 71. Snap-fit ​​flange; 72. Limiting protrusion;

[0029] 8. Body-in-white sheet metal; 81. Door sill clip mounting hole. (V) Specific implementation methods

[0030] The embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the threshold buckle of the present invention is applied to the field of automobile exterior parts assembly technology in the specification, the technical solution of the present invention is not limited thereto, and those skilled in the art can apply the technical solution of the present invention to other fields as needed.

[0031] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should be noted that, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connect", "set", and "install" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 , the threshold buckle of the present invention is described. Among them, Figure 1The threshold buckle structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The threshold buckle structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The cross section of the threshold buckle structure of the present invention is Figure 1 ; Figure 4 The cross section of the threshold buckle structure of the present invention is Figure 2 .

[0034] like Figure 1 and Figure 2 As shown, the threshold buckle of the present invention includes a buckle body 1, a first clamping part 2, a second clamping part 3, a positioning part 4, a sealing ring 5 and a closed-cell foam 6; wherein, a limiting protrusion 11 is provided on the buckle body 1; a clamping protrusion 21 is provided on the first clamping part 2; a clamping claw 31, an avoidance groove 32, a first limit 33, a second limit 34, and a support 35 are provided on the second clamping part 3; a positioning protrusion 41 is provided on the positioning part 4; a protruding part 411; a sealing ring 5; and a closed-cell foam 6.

[0035] like Figure 3 As shown, the clamping claw 31 provided on the second clamping portion 3 is fixed to the clamping flange 71 provided on the threshold skin 7. During this clamping process, the clamping claw 31 is deformed and fixed through the avoidance groove 32. At the same time, the first limit 33, the second limit 34, and the support 35 are respectively fitted with the threshold skin 7 to limit the threshold skin 7 from sliding upward, downward, inward, and outward, thereby connecting the threshold skin 7 and the threshold buckle together.

[0036] like Figure 3 and Figure 4 As shown, the clamping protrusion 21 provided on the first clamping portion 2 is fixed to the threshold buckle mounting hole 81 provided on the white body sheet metal 8, and at the same time, the protrusion 411 at the lower end of the positioning protrusion 41 provided on the positioning portion 4 abuts against the lower edge of the threshold buckle mounting hole 81. Since the threshold trim is affected by gravity and pedaling force, the protrusion 411 abuts against the threshold buckle mounting hole 81, thereby preventing the risk of the threshold trim sinking.

[0037] like Figure 3 and Figure 4 As shown, during the installation of the door sill clip, the sealing ring 5 and the closed-cell foam 6 are interference-fitted with the body-in-white sheet metal 8, and the sealing and waterproofing function is achieved through the compression deformation of the sealing ring 5 and the closed-cell foam 6.

[0038] So far, the technical solutions of the present invention have been described in conjunction with the embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A threshold buckle, characterized in that: The threshold buckle includes a buckle main body structure, a sealing ring structure and a closed-cell foam structure; wherein, a first clamping portion and a positioning portion are provided on the buckle main body, the first clamping portion and the positioning portion are used to connect with the body-in-white, and the positioning portion can position the threshold skin on the body-in-white; a second clamping portion is provided on the other side of the buckle main body, and the second clamping portion is used to connect with the threshold skin.

2. The threshold buckle according to claim 1, characterized in that: The first clamping part is a clamping structure arranged on the buckle body, and the clamping structure can be clamped and matched with the buckle mounting hole on the white body; the second clamping part includes a claw structure arranged on the buckle body and an avoidance groove structure on the buckle body, and the avoidance groove is arranged to allow the claw structure to avoid it; the positioning part is a positioning protrusion arranged on the buckle body, and the positioning protrusion can cooperate with the buckle mounting hole on the white body.

3. The threshold buckle according to claim 2, characterized in that: The buckle body is provided with two claw structures on the opposite sides of the positioning protrusion.

4. The threshold buckle according to claim 2, characterized in that: The bottom of the positioning protrusion forms a protruding structure downwards, and the protruding structure can abut against the lower edge of the buckle installation hole.

5. The threshold buckle according to claim 4, characterized in that: The protruding structure at the bottom of the positioning protrusion is in an arc shape.

6. The threshold buckle according to claim 2, characterized in that: The second clamping part includes a claw structure arranged on the buckle body and an avoidance groove structure arranged on the buckle body. When the threshold buckle is clamped with the threshold skin, the claw structure on the buckle body can abut against the flange of the threshold skin to prevent it from falling off, and the avoidance groove on the buckle body can provide avoidance space for the claw structure.

7. The threshold buckle according to claim 1, characterized in that: A sealing ring is arranged on the side of the first clamping portion, and the sealing ring is connected to the buckle body by two-color injection molding. The cross-section of the sealing ring is in a "concave" shape, and when the threshold buckle is installed, the sealing ring and the white body are squeezed and deformed, thereby playing the role of the first sealing.

8. The threshold buckle according to claim 1, characterized in that: A closed-cell foam is arranged on the side of the first clamping portion, and the closed-cell foam is bonded to the buckle body by a double-sided tape. When the threshold buckle is installed, the closed-cell foam is squeezed against the white body to play a second sealing role.

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