Cabin decorative plate installation limiting structure for preventing secondary splashing of parts during whole vehicle collision

Abstract

The utility model relates to an installation limiting structure of a cabin decorating plate, which is used for preventing secondary splashing of parts when a whole vehicle is collided, and comprises a cabin decorating plate body and a vehicle body metal plate, and a Z-direction two-way limiting structure is arranged at the bottom of the cabin decorating plate body. A mounting groove and a guide groove which is communicated with the mounting groove and wider than the mounting groove are formed in the position, opposite to the Z-direction bidirectional limiting structure, of the vehicle body metal plate, the section of the Z-direction bidirectional limiting structure is in an I shape, the Z-direction bidirectional limiting structure comprises a Z-direction upper limiting part, a Z-direction lower supporting part and a Z-direction assembling part, and the Z-direction upper limiting part penetrates through the guide groove of the vehicle body metal plate to slide in in the X direction; the Z-direction assembling part is arranged in a mounting groove of the automobile body metal plate, and a supporting rib is arranged on the inner side of the face, facing the Z-direction upper limiting part, of the Z-direction lower supporting part. According to the structure, Z-direction two-way limiting is achieved, it is guaranteed that Z-direction pressing has a supporting function, meanwhile, Z-direction upward splashing in the collision process of the cabin decoration plate is effectively prevented, and secondary damage caused by splashing of the cabin decoration plate is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and in particular relates to a cabin decorative panel installation limiting structure which can prevent parts from splashing again when the whole vehicle collides. Background Art

[0002] When a car collides, the front end of the car is required to have an energy absorption function, that is, it needs to deform itself after the collision to protect pedestrians. The front end area of ​​the cabin decorative panel is the collision deformation area. The existing cabin decorative panel is installed and fixed by a Z-direction support structure, which only ensures the support function of Z-direction pressing. During the collision process of this installation method, the cabin decorative panel is deformed and squeezed by the front bumper, causing the product to bulge upward and deform, and it will produce an upward Z-direction impact on the metal hood, causing secondary damage to pedestrians and cars after the collision. In serious cases, there is a risk that the cabin decorative panel will detach from the car body and splash upward. Utility Model Content

[0003] The utility model aims to provide a cabin decorative panel installation limiting structure for preventing parts from splashing again when the whole vehicle collides. The structure realizes two-way limiting in the Z direction by improving the overall structure of the connection part between the cabin decorative panel and the sheet metal, which not only ensures that the Z-direction pressing has a supporting function, but also effectively prevents the cabin decorative panel from splashing upward in the Z direction during the collision process, thereby avoiding secondary damage caused by the splashing of the cabin decorative panel.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A cabin decorative panel installation limiting structure for preventing parts from splashing again when a whole vehicle collides, comprising a cabin decorative panel body and a body sheet metal, the improvement being that a Z-direction bidirectional limiting structure is installed at the bottom of the cabin decorative panel body, the body sheet metal is provided with a mounting groove and a guide groove connected to the mounting groove and having a width greater than the mounting groove at a position opposite to the Z-direction bidirectional limiting structure, the Z-direction bidirectional limiting structure is I-shaped in cross section, comprising a Z-direction upper limit portion, a Z-down support portion and a Z-direction assembly portion arranged between the Z-direction upper limit portion and the Z-down support portion, the widths of the Z-direction upper limit portion and the Z-down support portion being greater than the width of the mounting groove, the Z-direction upper limit portion passes through the guide groove of the body sheet metal and slides in along the X-direction, so that the Z-direction assembly portion is arranged in the mounting groove of the body sheet metal, the Z-down support portion is provided with a support rib on the inner side of a side facing the Z-direction upper limit portion, the support rib is clearance-matched with the body sheet metal for support when pressed in the Z-direction.

[0006] As a preferred embodiment of the present invention, the Z-direction bidirectional limiting structure is connected to the cabin decorative panel body via a connecting arm, and is integrally injection-molded with the cabin decorative panel body.

[0007] As a preferred embodiment of the present invention, a gap of 3 mm is reserved between the top surface of the Z-direction upper limit portion and the bottom surface of the sheet metal mounting groove, and a gap of 1 mm is reserved between the bottom surface of the support rib and the top surface of the body sheet metal.

[0008] The utility model has the following advantages and positive effects:

[0009] (1) The installation limit structure provided by the utility model adopts an I-shaped Z-direction bidirectional limit structure. The installation direction is along the X-direction of the whole vehicle, that is, it can be inserted into the installation groove of the body sheet metal. It is easy to install. When the cabin decorative panel is squeezed and bulged due to a collision, the Z-direction upper limit portion can play a good role in limiting and effectively prevent the cabin decorative panel from splashing upward in the Z direction during the collision process, avoiding secondary damage caused by the splashing of the cabin decorative panel. When pressed, the Z-direction downward support portion plays a supporting role to achieve Z-direction bidirectional limit.

[0010] (2) The installation limit structure provided by the utility model changes the original support only in the Z direction to a two-way limit in the Z direction. This structure not only ensures the support function of the Z-direction pressing, but also avoids the risk of the cabin decorative panel detaching from the vehicle body and splashing upwards when the whole vehicle collides.

[0011] (3) The installation limiting structure provided by the utility model can be applied to cabin decoration parts, and can also be applied to other plastic and even metal parts in the automotive industry, ensuring the realization of similar functions and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the cabin decorative panel installation limiting structure of the utility model;

[0013] Figure 2 yes Figure 1 The main view at A in the middle;

[0014] Figure 3 It is the overall structural diagram of the Z-direction bidirectional limit structure;

[0015] Figure 4 yes Figure 2 Schematic cross-sectional view of AA in the figure;

[0016] Figure 5 It is a schematic diagram of the assembly of the cabin decorative panel body and the body sheet metal;

[0017] Figure 6 This is an enlarged view of the body sheet metal mounting slot.

[0018] Figure numerals: cabin decorative panel body 1, vehicle body sheet metal 2, Z-direction bidirectional limiting structure 3, connecting arm 4, mounting groove 201, guide groove 202, Z-direction upper limiting portion 301, Z-direction assembly portion 302, Z-down supporting portion 303, supporting rib 3031. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In the description of the present application, it should be noted that the terms "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] like Figures 1 to 6 As shown, the utility model provides a cabin decorative panel installation limiting structure for preventing parts from splashing again when the whole vehicle collides, comprising a cabin decorative panel body 1 and a body sheet metal 2. The improvement made is that a Z-direction bidirectional limiting structure 3 is installed at the bottom of the cabin decorative panel body 1, and the body sheet metal 2 is provided with a mounting groove 201 and a guide groove 202 connected to the mounting groove and having a width greater than the mounting groove at a position opposite to the Z-direction bidirectional limiting structure 3. The cross-section of the Z-direction bidirectional limiting structure 3 is an I-shape, comprising a Z-direction upper limit portion 301, a Z-down support portion 303 and a device The Z-direction assembly portion 302 is arranged between the Z-direction upper limit portion and the Z-downward supporting portion, and the widths of the Z-direction upper limit portion 301 and the Z-downward supporting portion 303 are greater than the width of the mounting groove 201. The Z-direction upper limit portion 301 passes through the guide groove 202 of the body sheet metal and slides in along the X-direction, so that the Z-direction assembly portion 302 is arranged in the mounting groove 201 of the body sheet metal. The Z-downward supporting portion 303 is provided with a supporting rib 3031 on the inner side of a side facing the Z-direction upper limit portion. The supporting rib 3031 is clearance-matched with the body sheet metal 2 and is used for supporting when pressed in the Z-direction.

[0023] Furthermore, in this embodiment, the Z-direction bidirectional limiting structure 3 is connected to the cabin decorative panel body 1 through the connecting arm 4, and is integrally injection molded with the cabin decorative panel body 1. In this embodiment, except that the single material EPDM is not available, there are no other special restrictions on the setting of the part material, for example, PP / EPDM+TD20 (modified PP material, PP is polypropylene, EPDM is ethylene propylene diene monomer rubber, T is talcum powder) can be used for injection molding, and materials with a higher hardness than this material can also be used.

[0024] In the design process, the utility model needs to ensure that the product structure mold is feasible, and the size limitation must also be ensured, that is, it must ensure that there is no interference during the assembly process, and at the same time, it must ensure that the Z-direction limit moment plays a protective role during the collision process. Specifically, Figure 4 , Figure 5 As shown, in this embodiment, the gap a between the top surface of the Z-direction upper limit portion 301 and the bottom surface of the sheet metal mounting groove 201 is controlled at 3 mm, the gap b between the bottom surface of the support rib 3031 and the top surface of the vehicle body sheet metal is controlled at 1 mm, the basic wall thickness c of the Z-direction bidirectional limiting structure is 2 mm, the gap d between the outer side surface of the Z-direction assembly portion 302 and the inner side surface of the sheet metal mounting groove 201 is controlled at 2.6 mm, the inner width e of the Z-direction assembly portion is controlled at 5 mm, the inner width f of the Z-direction upper limit portion 301 is controlled at 25 mm, and the inner height g is controlled at 5 mm, so as to ensure smooth and convenient installation.

[0025] It should be noted that in this embodiment, only the structural form is limited, and the specific matching dimensions need to be adjusted according to the dimensions of the environmental parts of each actual project.

[0026] The utility model can achieve the required functions without adding additional costs or parts by optimizing the structure of the cabin decorative panel itself, that is, it can meet the needs of product function Z-axis two-way limit. At the same time, due to the strong strength of the parts themselves, it can prevent the parts from splashing and injuring people after the whole vehicle collides. The structure has been verified by experiments and has high reliability. It will be included in the Volkswagen project benchmarking document to solve the problem of splashing parts in the collision of the whole vehicle. It can be applied to cabin decorative parts, and can also be applied to other plastic and even metal parts in the automotive industry to ensure the realization of similar functions.

[0027] The above description is only a specific implementation case of the utility model, but the technical features of the utility model are not limited thereto. Any changes and modifications made by any technician in the field within the field of the utility model are within the scope of the patent of the utility model.

Claims

1. A cabin decorative panel installation limiting structure for preventing parts from splashing again when the whole vehicle collides, comprising a cabin decorative panel body and a vehicle body sheet metal, characterized in that: A Z-direction bidirectional limiting structure is installed at the bottom of the cabin decorative panel body, and the body sheet metal is provided with an installation groove and a guide groove connected with the installation groove and having a width greater than the installation groove at a position opposite to the Z-direction bidirectional limiting structure. The cross-section of the Z-direction bidirectional limiting structure is an I-shape, including a Z-direction upper limit portion, a Z-down support portion and a Z-direction assembly portion arranged between the Z-direction upper limit portion and the Z-down support portion. The widths of the Z-direction upper limit portion and the Z-down support portion are greater than the width of the installation groove. The Z-direction upper limit portion passes through the guide groove of the body sheet metal and slides in along the X direction, so that the Z-direction assembly portion is arranged in the installation groove of the body sheet metal. The Z-down support portion is provided with a support rib on the inner side of a side facing the Z-direction upper limit portion. The support rib is clearance-matched with the body sheet metal for support when pressed in the Z direction.

2. According to claim 1, a cabin decorative panel installation limiting structure for preventing secondary splashing of parts during vehicle collision, characterized in that: The Z-direction bidirectional limiting structure is connected to the cabin decorative panel body through a connecting arm, and is integrally injection-molded with the cabin decorative panel body.

3. The engine room decorative panel installation limiting structure for preventing secondary splashing of parts during vehicle collision according to claim 1 is characterized in that: A gap of 3 mm is reserved between the top surface of the Z-direction upper limit portion and the bottom surface of the sheet metal installation groove, and a gap of 1 mm is reserved between the bottom surface of the support rib and the top surface of the body sheet metal.

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