High-strength light-weight automobile sliding door guide rail

Abstract

The utility model discloses a high-strength and light-weight automobile sliding door guide rail which comprises a guide rail fixedly arranged on an automobile body, a bearing end face and a guiding end face, the bearing end face and the guiding end face are located at the two ends of the guide rail respectively, the guiding end face is located above the bearing end face, and the guiding end face and the bearing end face are horizontally arranged. The guide rail is simple to manufacture and high in precision, the overall weight of the guide rail is reduced by adding the passing and bearing through holes, the overall strength of the guide rail is not affected, the overall structure improves the strength of the rail, and the assembly process is safer and more reliable due to the fact that the contour edge of the guide rail is in a smooth transition mode.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a high-strength and lightweight automobile sliding door guide rail. Background Art

[0002] Nowadays, with the continuous development of the automobile industry and the various needs of consumers, the automobile industry pays more attention to market segmentation. In order to meet consumers' needs for different functions and appearances, a large number of MPVs (Multi-Purpose Vehicles) and mini vans have appeared in the automobile market. These models widely use sliding doors on the rear doors to increase the door opening and reduce the external space occupied by the door after opening, so as to facilitate the purpose of loading.

[0003] The regulatory test for sliding door retainers is a mandatory test in accordance with the national standard. It requires that the sliding door, when in a fully closed state, moves the force-applying device in the test at a speed of 20mm / min-90mm / min until each force-applying device reaches a force of 9000N or a total displacement of 300mm, and is maintained for more than 10s. The separation distance between the inner plate of the sliding door and the outer edge of the door frame is less than 100mm, and there is no disengagement between the sliding door guide rail and the sliding door assembly and other supporting parts. At present, in the regulatory test for sliding door retainers, since the sliding door is in a fully closed state, the guide wheels are all located at the front end of the guide rail, and the guide rail is generally a thin-walled structure. Therefore, when the test load is applied, the sliding door is prone to disengagement, that is, the upper hinge, middle hinge or lower hinge is disengaged from the guide rail. If the sliding door is disengaged, the separation distance between the inner plate and the outer edge of the door frame is usually greater than the standard value, which cannot meet the regulatory requirements.

[0004] When the sliding door is opened or closed, the door moves on the guide rail through the hinge with the pulley mechanism. The guide rail is fixed to the body of the car. The structural design and stability of the guide rail are crucial to the stable operation of the sliding door. At present, the guide rails on the market are mainly made of steel, and the guide rails of some models have the following problems: 1. The guide rail is heavy, which increases the overall weight of the car; 2. The guide rail structure design is unreasonable, resulting in abnormal noise when the roller runs in the guide rail; 3. The guide rail structure is complex, and the size is unstable when mass-produced, which increases the manufacturing cost. Utility Model Content

[0005] Purpose of the utility model: In order to solve the deficiencies of the prior art, the utility model provides a high-strength and lightweight automobile sliding door guide rail, which is relatively light as a whole, has a high structural strength, is simple to manufacture and has high precision.

[0006] Technical solution: In order to achieve the above objectives, the utility model discloses a high-strength and lightweight automobile sliding door guide rail, which comprises: a guide rail fixedly mounted on the automobile body, a load-bearing end face and a guide end face respectively located at both ends of the guide rail, the guide end face being located above the load-bearing end face and both being arranged horizontally.

[0007] As a further preferred embodiment of the present invention, the guide end face includes: a long guide end face, a short guide end face and a supporting guide end face, the short guide end face and the supporting guide end face are respectively vertically fixed to the two ends of the long guide end face, and the supporting guide end face is vertically fixed to the top of the guide rail.

[0008] As a further preferred embodiment of the present invention, the short guide end face, the long guide end face and the supporting guide end face are connected to form an "n" shape.

[0009] As a further preferred embodiment of the present invention, through holes are respectively provided in the long guide end surface and the short guide end surface.

[0010] As a further preferred embodiment of the present invention, the length-to-width ratio of the through hole is 3:1 to 4:1. By reasonably setting the dimensions of the through hole, the stability and reliability of the overall structure can be ensured while effectively reducing weight.

[0011] As a further preferred embodiment of the present invention, a guide wheel is installed in the guide end surface.

[0012] As a further preferred embodiment of the present invention, the load-bearing end surface includes a load-bearing surface with a load-bearing through hole, and the load-bearing surface is vertically installed at the bottom of the guide rail.

[0013] As a further preference of the present invention, the length-to-width ratio of the load-bearing through hole is 6:1 to 7:1. By reasonably setting the dimensions of the load-bearing through hole, the stability and reliability of the overall structure can be ensured while effectively reducing weight.

[0014] As a further preferred embodiment of the present invention, load-bearing wheels are provided inside the load-bearing end surface.

[0015] As a further preferred embodiment of the present invention, the guide rail, the load-bearing end face and the guide end face are integrally formed, extruded from alloy or obtained by bending, thus ensuring the stability and reliability of the overall structure.

[0016] Beneficial effects: Compared with the prior art, the high-strength and lightweight automobile sliding door guide rail described in the utility model has a simple structure, is relatively light as a whole, has a high structural strength, is simple to manufacture and has high precision. By increasing the number of through and load-bearing through holes, the overall weight of the guide rail is reduced without affecting the overall strength of the guide rail. The overall structure improves the strength of the track. Since the contour edge of the guide rail adopts a smooth transition form, the assembly process is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial enlarged view of the utility model;

[0019] Figure 3 It is the installation diagram of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model discloses a high-strength and lightweight automobile sliding door guide rail, which comprises: a long guide end surface 1, a short guide end surface 2, a supporting guide end surface 3, a through hole 4, a load-bearing through hole 5 and a load-bearing surface 6.

[0022] The short guide end face 2 and the supporting guide end face 3 are respectively vertically fixedly connected to the two ends of the long guide end face 1, and the supporting guide end face 3 is vertically fixedly connected to the top of the guide rail 10. The short guide end face 2, the long guide end face 1 and the supporting guide end face 3 are connected to form an "n" shape. A through hole 4 is respectively provided in the long guide end face 1 and the short guide end face 2. The length-to-width ratio of the through hole 4 is 3:1 to 4:1, and a guide wheel 20 is installed in the guide end face.

[0023] The load-bearing surface 6 with the load-bearing through hole 5 is vertically installed at the bottom of the guide rail 10. The length-to-width ratio of the load-bearing through hole 5 is 6:1-7:1, and a load-bearing wheel 30 is arranged in the load-bearing end surface.

[0024] The guide rail 10, the load-bearing end face and the guide end face are obtained by integral forming, extrusion of alloy or bending, and a smooth transition is provided on the end face of the short guide end face 2 and the load-bearing end face 6 to prevent the sharp edges from injuring the workers during assembly at the main engine factory. The structure here is quite different from the traditional steel structure guide rail. The traditional structure guide rail often has difficulty in achieving a smooth transition at the edge, which poses a safety hazard.

[0025] The above implementation is only to illustrate the technical concept and features of the utility model, and its purpose is to enable technicians familiar with the technical field to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-strength and lightweight automobile sliding door guide rail, comprising: A guide rail (10) fixedly mounted on a vehicle body, characterized in that it comprises a load-bearing end surface and a guide end surface respectively located at both ends of the guide rail (10), wherein the guide end surface is located above the load-bearing end surface and the two are arranged horizontally; The guide end surface comprises: a long guide end surface (1), a short guide end surface (2) and a supporting guide end surface (3), wherein the short guide end surface (2) and the supporting guide end surface (3) are respectively vertically fixed to the two ends of the long guide end surface (1), and the supporting guide end surface (3) is vertically fixed to the top of the guide rail (10); The long guide end surface (1) and the short guide end surface (2) are respectively provided with through holes (4).

2. The high-strength and lightweight automobile sliding door guide rail according to claim 1, characterized in that: The short guide end face (2), the long guide end face (1) and the supporting guide end face (3) are connected to form an "n" shape.

3. The high-strength and lightweight automobile sliding door guide rail according to claim 1, characterized in that: The length-to-width ratio of the through hole (4) is 3:1-4:

1.

4. The high-strength and lightweight automobile sliding door guide rail according to claim 1, characterized in that: A guide wheel (20) is installed in the guide end surface.

5. The high-strength and lightweight automobile sliding door guide rail according to claim 1, characterized in that: The load-bearing end surface comprises a load-bearing surface (6) with a load-bearing through hole (5), and the load-bearing surface (6) is vertically installed at the bottom of the guide rail (10).

6. The high-strength and lightweight automobile sliding door guide rail according to claim 5, characterized in that: The length-to-width ratio of the load-bearing through hole (5) is 6:1-7:

1.

7. The high-strength and lightweight automobile sliding door guide rail according to claim 5, characterized in that: A load-bearing wheel (30) is arranged inside the load-bearing end surface.

8. The high-strength and lightweight automobile sliding door guide rail according to claim 1, characterized in that: The guide rail (10), the load-bearing end surface and the guide end surface are obtained by integrally forming, extruding alloy or bending.

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