Fastening structure for automobile exterior trim

Abstract

The invention relates to a fastening structure for an automobile exterior trim, and aims to solve the technical problems that local broken corners of the automobile exterior trim are easy to tilt and the installation is not fastened when the automobile exterior trim is bonded by a double-sided adhesive tape at present. The fastening structure comprises an automobile frame body and an automobile exterior trim plate; wherein a gap in the automobile frame body forms a mounting cavity. Through the arrangement of the velvet hasps A and the velvet hasps B, the automobile exterior trimming panel and the automobile frame body are connected in a buckled mode, the at least two sets of velvet hasps A and velvet hasps B are oppositely arranged and connected to the opposite faces of the automobile frame body and the automobile exterior trimming panel at the reasonable distance in advance, and relative limiting connection is formed; compared with a conventional double-faced adhesive tape, the double-faced adhesive tape has the advantages that the tensile force is effectively utilized to reduce the moving gap between the automobile frame body and the automobile exterior trimming panel, and the problem that the local end of the automobile exterior trimming panel is tilted is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile exterior installation, and in particular to a fastening structure for automobile exterior. Background Art

[0002] During the production and preparation process of a car, various parts are installed and connected in a variety of different ways. Among them, the exterior decorative strips of the car and the auxiliary connecting strips of the taillights are mostly connected by double-sided tapes and buckles.

[0003] The existing decorative panels for auxiliary connection taillights located on the side of the rear taillight of the car relative to the side of the car trunk are mostly installed and connected by double-sided tape. After installation, it is easy for local end corners to be lifted, and the matching buckles to be misaligned. It is also easy to produce abnormal noise during driving. Therefore, how to propose an automobile exterior fastening structure with installation fastening is particularly important. In view of this, we propose a fastening structure for automobile exterior. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, meet the actual needs, and provide a fastening structure for automobile exteriors to solve the technical problems that the automobile exteriors are easily broken and warped at local corners and are not installed tightly when bonding automobile exteriors with double-sided adhesive.

[0005] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: designing a fastening structure for automobile exterior, including an automobile frame and an automobile exterior panel; wherein the internal gap of the automobile frame constitutes an installation cavity; the automobile exterior panel is arranged on the installation cavity in a double-bending structure; wherein the automobile exterior panel is provided with velvet buckles A at the high ends on both axial sides relative to the installation cavity; and, the automobile frame is provided with velvet buckles B at the position relative to the velvet buckles A; wherein the automobile frame is connected to the automobile exterior panel by velvet buckles A and velvet buckles B. The present invention realizes a snap-fit ​​connection between the automobile exterior panel and the automobile frame by setting the velvet buckle A and the velvet buckle B. By pre-arranging at least two groups of velvet buckles A and velvet buckles B at a reasonable distance and connecting them to the opposite surfaces of the automobile frame and the automobile exterior panel respectively, a relative limit connection is formed, so that the decorative panel located at the rear taillight of the automobile can maintain tension at both ends synchronously after installation to form a fastening effect. Compared with the setting of conventional double-sided stickers, the tension force is effectively improved to reduce the movable gap between the automobile frame and the automobile exterior panel, and the problem of warping of the local end of the automobile exterior panel is effectively solved.

[0006] Preferably, the automotive exterior panel is composed of a mounting part and a fastening part; wherein, the mounting part is horizontally arranged on the mounting cavity; wherein, the fastening part is vertically arranged on the mounting cavity to connect the mounting part; wherein, a plurality of support protrusions are arranged on the side of the mounting part relatively close to the mounting cavity; wherein, the extending ends of the mounting part and the fastening part are bent.

[0007] Preferably, at least two inclined fitting protrusions are arranged on the surface of the extending end of the fastening part; wherein, a Velcro A surface is arranged on the surface of the fitting protrusion.

[0008] Preferably, a Velcro B surface is arranged parallel to the Velcro A surface on the vehicle frame; wherein, the vehicle frame is adhesively connected to the extending end of the fastening part through the Velcro A surface, the Velcro B surface and the fitting protrusion. By the arrangement of the Velcro A surface and the Velcro B surface in the present invention, a secondary adhesive connection is made between the vehicle frame and the fastening part. By using this arrangement, at the bent extension of the decorative panel located at the rear taillight of the vehicle, it can be fully re-reinforced with the vehicle frame, effectively improving the situation where the local tension of the velvet fastener A and the velvet fastener B is insufficient due to the bent shape of the decorative panel located at the rear taillight of the vehicle, so as to improve the connection tightness between the irregular shape and the vehicle frame in the automotive exterior parts; at the same time, the characteristics of the Velcro A surface and the Velcro B surface themselves can facilitate disassembly and multiple installation operations.

[0009] Preferably, the velvet fastener A is composed of a fixing part A and a buckle part, and, an inclined guiding cutting surface A is arranged on the end of the buckle part relatively close to the automotive exterior panel.

[0010] Preferably, the velvet fastener B is composed of a fixing part B, a connecting part and a buckle head; and, the width of the connecting part is smaller than the inner wall width of the buckle part.

[0011] Preferably, the buckle head is semicircular; and, the diameter of the buckle head is larger than the inner wall width of the buckle part, and, an inclined guiding cutting surface B is arranged on the end of the buckle head relatively close to the vehicle frame. By the arrangement that the diameter of the buckle head is larger than the inner wall width of the buckle part in the present invention, the buckle head is caused to penetrate into the buckle part under manual clamping, and the semicircular buckle head is used to limit and connect with the buckle part to form the required buckle connection measure. At the same time, both the velvet fastener A and the velvet fastener B are flattened, having a thickness suitable for the gap between the vehicle frame and the automotive exterior panel, and the connection tightness between the vehicle frame and the automotive exterior panel can be synchronously improved by compressing the thickness between the velvet fastener A and the velvet fastener B according to the actual situation, effectively controlling the size of the gap between the vehicle frame and the automotive exterior panel.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention realizes a snap-on connection between the automobile exterior panel and the automobile frame by setting the velvet buckle A and the velvet buckle B. By pre-arranging at least two groups of velvet buckles A and velvet buckles B at a reasonable distance and connecting them to the opposite surfaces of the automobile frame and the automobile exterior panel respectively, a relative limit connection is formed, so that the decorative panel located at the rear taillight of the automobile can maintain tension at both ends synchronously after installation to form a fastening effect. Compared with the setting of conventional double-sided stickers, the tension force is effectively improved to reduce the movable gap between the automobile frame and the automobile exterior panel, and the problem of warping of the local end of the automobile exterior panel is effectively solved.

[0013] 2. The present invention achieves a secondary adhesive connection between the automobile frame and the fastening part by setting the Velcro A surface and the Velcro B surface. By utilizing this setting, the bent and extended part of the decorative panel located at the rear taillight of the automobile can be fully reinforced with the automobile frame again, effectively improving the tightness of the connection between the irregular shape of the automobile exterior decoration and the automobile frame due to the insufficient local tensioning force of the velvet buckle A and the velvet buckle B caused by the bending shape of the decorative panel located at the rear taillight of the automobile. At the same time, the characteristics of the Velcro A surface and the Velcro B surface themselves can be used to facilitate removal and multiple installation operations.

[0014] 3. The present invention sets the buckle head diameter larger than the inner wall width of the buckle ring part, so that the buckle head can penetrate into the buckle ring part under manual snap-fit, and utilizes the semicircular buckle head to limit the connection with the buckle ring part to form the required snap-fit ​​connection measures. At the same time, the velvet buckle A and the velvet buckle B are flattened to have a thickness that fits the gap between the automobile frame and the automobile exterior panel. According to actual conditions, the thickness between the velvet buckle A and the velvet buckle B can be compressed to simultaneously improve the connection tightness between the automobile frame and the automobile exterior panel, and the size of the gap between the automobile frame and the automobile exterior panel can be effectively controlled. At the same time, the guide section A at the end of the buckle ring part 302 and the guide section B at the end of the buckle head 402 are utilized to effectively reduce the thickness of the overlapping part to facilitate the compression of the connection gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the installation structure of the automobile frame and the automobile exterior panel in the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the automobile exterior panel in the present invention; Figure 3 The side view structure diagram of the velvet buckle A and the velvet buckle B in the present invention is used to illustrate the buckling structure of the velvet buckle A and the velvet buckle B; Figure 4 It is a schematic diagram of the fitting protrusion structure in the present invention; Figure 5 It is a schematic diagram of the top view of the velvet buckle A and the velvet buckle B in the present invention.

[0016] In the figure: 1. Vehicle frame; 2. Vehicle exterior trim panel; 3. Velvet fastener A; 4. Velvet fastener B; 201. Mounting part; 202. Fastening part; 2021. Fitting protrusion; 301. Fixing part A; 302. Buckle part; 401. Fixing part B; 402. Buckle head. Embodiment

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: A fastening structure for vehicle exterior trim, see Figures 1 to 5 , including a vehicle frame 1 and a vehicle exterior trim panel 2; wherein, an installation cavity is formed by the internal gap of the vehicle frame 1; the vehicle exterior trim panel 2 is arranged on the installation cavity in a double-bent structure; wherein, velvet fasteners A 3 are arranged at the high ends on both axial sides of the vehicle exterior trim panel 2 relative to the installation cavity; and, velvet fasteners B 4 are arranged at the positions of the vehicle frame 1 relative to the velvet fasteners A 3; wherein, the vehicle frame 1 is snap-connected to the vehicle exterior trim panel 2 through the velvet fasteners A 3 and the velvet fasteners B 4. By setting the velvet fasteners A 3 and the velvet fasteners B 4, the vehicle exterior trim panel 2 and the vehicle frame 1 are snap-connected. By pre-arranging at least two groups of velvet fasteners A 3 and velvet fasteners B 4 at reasonable distances and respectively connecting them to the opposite surfaces of the vehicle frame 1 and the vehicle exterior trim panel 2 to form a relative limit connection, the decorative panel located at the rear taillight of the vehicle can keep the tension at both ends synchronized after installation to form a fastening effect. Compared with the conventional double-sided tape setting, it effectively improves the use of the tension force to reduce the movement gap between the vehicle frame 1 and the vehicle exterior trim panel 2, and effectively solves the situation that the local end of the vehicle exterior trim panel 2 warps up.

[0018] Specifically, the vehicle exterior trim panel 2 is composed of a mounting part 201 and a fastening part 202; wherein, the mounting part 201 is arranged horizontally on the installation cavity; wherein, the fastening part 202 is arranged vertically on the installation cavity and connected to the mounting part 201; wherein, a plurality of support protrusions are arranged on the side of the mounting part 201 relatively close to the installation cavity; and, the extending ends of the mounting part 201 and the fastening part 202 are bent.

[0019] Furthermore, at least two inclined fitting protrusions 2021 are arranged on the surface of the extending end of the fastening part 202; and, a magic tape A surface is arranged on the surface of the fitting protrusion 2021.

[0020] Furthermore, a hook-and-loop fastener B surface is arranged parallel to the hook-and-loop fastener A surface on the vehicle frame 1; wherein, the vehicle frame 1 is adhesively connected to the extending end of the fastening part 202 through the hook-and-loop fastener A surface, the hook-and-loop fastener B surface and the fitting protrusion 2021. Through the arrangement of the hook-and-loop fastener A surface and the hook-and-loop fastener B surface, the vehicle frame 1 and the fastening part 202 are adhesively connected for the second time. By using this arrangement, at the bent extension of the decorative plate at the rear taillight of the vehicle, it can be fully re-reinforced with the vehicle frame 1, effectively improving the situation where the local tension of the velvet fastener A3 and the velvet fastener B4 is insufficient due to the bent shape of the decorative plate at the rear taillight of the vehicle, so as to improve the connection tightness between the irregular shape and the vehicle frame 1 in the vehicle exterior parts; at the same time, the characteristics of the hook-and-loop fastener A surface and the hook-and-loop fastener B surface itself facilitate disassembly and multiple installation operations.

[0021] It should be noted that the velvet fastener A3 is composed of a fixing part A301 and a buckle part 302, and a slanting guiding cutting surface A is arranged at the end of the buckle part 302 relatively close to the vehicle exterior panel 2.

[0022] It should be noted that the velvet fastener B4 is composed of a fixing part B401, a connecting part and a buckle head 402; and the width of the connecting part is smaller than the inner wall width of the buckle part 302.

[0023] It should be introduced that the buckle head 402 is semicircular; and the diameter of the buckle head 402 is larger than the inner wall width of the buckle part 302, and a slanting guiding cutting surface B is arranged at the end of the buckle head 402 relatively close to the vehicle frame 1. Through the setting that the diameter of the buckle head 402 is larger than the inner wall width of the buckle part 302, the buckle head 402 is caused to penetrate into the buckle part 302 under manual clamping, and the semicircular buckle head 402 is used to limit and connect with the buckle part 302 to form the required buckle connection measure. At the same time, both the velvet fastener A3 and the velvet fastener B4 are processed by flattening, having a thickness suitable for the gap between the vehicle frame 1 and the vehicle exterior panel 2, and according to the actual situation, by compressing the thickness between the velvet fastener A3 and the velvet fastener B4, the connection tightness between the vehicle frame 1 and the vehicle exterior panel 2 can be improved synchronously, effectively controlling the size of the gap between the vehicle frame 1 and the vehicle exterior panel 2. At the same time, the guiding cutting surface A at the end of the buckle part 302 and the guiding cutting surface B at the end of the buckle head 402 effectively reduce the thickness of the overlapping part to facilitate compressing the connection gap.

[0024] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention according to the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A fastening structure for automotive exterior decoration, characterized in that, It includes a vehicle frame (1) and an exterior vehicle trim panel (2); wherein, an installation cavity is formed by the internal gap of the vehicle frame (1); the exterior vehicle trim panel (2) is arranged on the installation cavity in a double-bent structure; wherein, velvet fasteners A (3) are provided at the high ends on both axial sides of the exterior vehicle trim panel (2) relative to the installation cavity; and, velvet fasteners B (4) are provided at the positions of the vehicle frame (1) relative to the velvet fasteners A (3); wherein, the vehicle frame (1) is snap-connected to the exterior vehicle trim panel (2) through the velvet fasteners A (3) and the velvet fasteners B (4).

2. The fastening structure for automotive exterior trim according to claim 1, characterized in that, The exterior vehicle trim panel (2) is composed of a mounting part (201) and a fastening part (202); wherein, the mounting part (201) is arranged horizontally on the installation cavity; wherein, the fastening part (202) is arranged vertically on the installation cavity to connect the mounting part (201); wherein, a number of support protrusions are provided on the side of the mounting part (201) relatively close to the installation cavity; wherein, the extending ends of the mounting part (201) and the fastening part (202) are bent.

3. The fastening structure for automotive exterior decoration according to claim 2, wherein At least two inclined fitting protrusions (2021) are provided on the surface of the extending end of the fastening part (202); wherein, a Velcro A surface is provided on the surface of the fitting protrusions (2021).

4. The fastening structure for automotive exterior decoration according to claim 3, wherein, A Velcro B surface is provided parallel to the Velcro A surface on the vehicle frame (1); wherein, the vehicle frame (1) is adhesively connected to the extending end of the fastening part (202) through the Velcro A surface, the Velcro B surface and the fitting protrusions (2021).

5. The fastening structure for automotive exterior decoration according to claim 4, wherein, The velvet fastener A (3) is composed of a fixing part A (301) and a buckle part (302), and, a slanted guiding cut surface A is provided at the end of the buckle part (302) relatively close to the exterior vehicle trim panel (2).

6. The fastening structure for automotive exterior trim according to claim 5, characterized in that, The velvet fastener B (4) is composed of a fixing part B (401), a connecting part and a buckle head (402); and, the width of the connecting part is smaller than the inner wall width of the buckle part (302).

7. The fastening structure for automotive exterior decoration according to claim 6, characterized in that, The buckle head (402) is semicircular; and, the diameter of the buckle head (402) is larger than the inner wall width of the buckle part (302), and, a slanted guiding cut surface B is provided at the end of the buckle head (402) relatively close to the vehicle frame (1).

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