CN217892759U

CN217892759U - Automobile bottom guard board with reinforcing structure

Info

Publication number: CN217892759U
Application number: CN202221736311.0U
Authority: CN
Inventors: 司马双杰; 唐敏杰
Original assignee: Changshu Changchun Auto Parts Co ltd; Jiangsu Changshu Automobile Decoration Group Co ltd
Current assignee: Changshu Changchun Auto Parts Co ltd; Jiangsu Changshu Automobile Decoration Group Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-25
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a backplate at bottom of car with additional strengthening, including end backplate body, end backplate body is equipped with a plurality of parallel arrangement's stiffening rib structure, stiffening rib structure be by the groove structure that the bottom plane bending becomes of end backplate body. The utility model discloses improve the intensity of end backplate under the prerequisite that does not increase weight, reduce and warp.

Description

Automobile bottom guard board with reinforcing structure

Technical Field

The utility model relates to an automobile bottom plate part technical field especially relates to a backplate at bottom of car with additional strengthening.

Background

The automobile bottom guard board is arranged at the bottom of an automobile floor and is mainly used for protecting automobile parts (such as various pipelines, wiring harnesses and the like) and avoiding impact damage to the parts caused by various road foreign matters in the driving process. Most of the existing automobile bottom guard plates are of large plane structures, the bottom guard plates can bear the impact of external force of an automobile body in the running process of an automobile, and when the impact exceeds the limit borne by the material characteristics of the bottom guard plates, the bottom guard plates can deform specifically to weaken the protection effect on other parts. The requirements of various host factories on the appearance and strength of the bottom guard plate are continuously increasing. The traditional way is that the upside at backplate sets up the strengthening rib at the bottom of the car improves intensity, but promotes the effect and more is difficult to satisfy the requirement to the further increase of strengthening rib will also bring the increase of product weight, is unfavorable for the lightweight.

SUMMERY OF THE UTILITY MODEL

To the defect of above-mentioned prior art, the utility model provides a backplate at bottom of car with additional strengthening, the purpose improves the structural strength of backplate at the bottom, reduces and warp.

The utility model discloses technical scheme as follows: the utility model provides a backplate at bottom of car with additional strengthening, includes the backplate body at the bottom, the backplate body is equipped with a plurality of parallel arrangement's reinforced rib structure, reinforced rib structure be by the groove structure that the bottom plane bending type of backplate body becomes at the bottom.

Furthermore, reinforcing ribs are arranged between the adjacent reinforcing rib structures, the reinforcing ribs protrude from the bottom plane of the bottom guard plate body, and two ends of each reinforcing rib are connected with the side walls of the groove structures. The side walls of the groove structures of the adjacent reinforcing rib structures are connected through the reinforcing ribs, so that the overall strength is improved.

Further, the length direction of the reinforcing ribs is perpendicular to the length direction of the reinforcing rib structure.

Further, a secondary reinforcing rib structure is arranged between adjacent reinforcing rib structures, the secondary reinforcing rib structure is a secondary groove structure formed by bending the bottom plane of the bottom protection plate body, and the secondary groove structure is communicated with the groove structure in a cross mode. And the secondary reinforcing rib structures are connected with the adjacent reinforcing rib structures, so that the overall strength is improved.

Further, the length direction of the secondary stiffener structure is perpendicular to the length direction of the stiffener structure.

Furthermore, a drain hole is formed in the side wall of the groove structure.

The utility model provides a technical scheme's advantage lies in:

compare in using strengthening rib structure, the utility model discloses can promote anti deformation strength under the prerequisite that does not increase product weight, can provide the protection for vehicle chassis's other parts better. After the reinforcing rib structure is adopted, the side of the drain hole can be opened, the front integrity of the bottom guard plate can be optimized under the condition that the area of the original drain hole is not reduced, and the appearance of the bottom guard plate is improved.

Drawings

Fig. 1 is a schematic perspective view of an automobile floor fender having a reinforcing structure according to example 1.

FIG. 2 is a schematic sectional view of a part of a reinforcing rib structure of the floor panel for an automobile having a reinforcing structure according to example 1.

FIG. 3 is a schematic view of the structure of a floor panel of comparative example 1.

Fig. 4 is a partial sectional view showing a reinforcing rib structure of the floor sheathing of comparative example 1.

Fig. 5 is a perspective view of the floor panel with a reinforcing structure of the automobile of embodiment 2.

FIG. 6 is a schematic view of the structure of a floor panel of comparative example 2.

Fig. 7 is a perspective view of the floor fender of the automobile having the reinforcing structure of embodiment 3.

FIG. 8 is a schematic view of the structure of a floor panel of comparative example 3.

Detailed Description

The present invention is further described in the following examples, which should be construed as merely illustrative and not a limitation of the scope of the present invention, and modifications of equivalent forms to those skilled in the art will fall within the scope of the present invention as defined in the appended claims after reading the present specification.

Embodiment 1, please refer to fig. 1 and fig. 2, the automobile bottom guard board with the reinforcing structure of the embodiment includes a bottom guard board body 1, the shape of the bottom guard board body 1 is set according to the shape set by the host factory, and two sides of the bottom guard board body 1 in the length direction are provided with mounting and connecting structures 101, which are determined according to the specific mounting position structure. In the middle of the bottom guard plate body 1, a plurality of parallel reinforcing rib 102 structures are disposed, as shown in fig. 2, the reinforcing rib 102 structures are groove structures formed by bending the bottom plane of the bottom guard plate body 1, that is, the reinforcing rib 102 structures are protrusions formed by the bottom guard plate body 1 toward the chassis of the vehicle. Therefore, a plurality of grooves 103 are formed on the surface of the bottom guard plate body 1 facing away from the automobile chassis. It should be noted that although the description of the present embodiment uses the expression of bending, it is only used to indicate the structural shape and not the manufacturing process, and the manufacturing of the present embodiment can be directly molded by injection molding. In order to ensure the drainage of the automobile bottom guard plate and avoid rainwater and the like from forming accumulated water on the bottom guard plate, the side wall 104 of the groove structure is provided with drain holes 105 which are arranged close to the bottom plane of the bottom guard plate body 1 so as to be beneficial to draining the accumulated water.

In comparative example 1, please refer to fig. 3 and 4, the bottom guard plate of the automobile is provided with a plurality of parallel ribs 101 'at the middle part of the bottom guard plate body 1', and the ribs 101 'are solid ribs formed on the bottom guard plate body 1' towards the automobile chassis. The ribs 101 'are located at the same positions as the side walls 104 of the channel structures in the example, i.e., one channel structure in example 1 corresponds to two ribs 101' in comparative example 1. In this comparative example, the drain hole 102 'is opened on the bottom surface of the apron body 1'.

Example 2, please refer to fig. 5, in this example, on the basis 1 of example 1, a rib 106 is disposed between the reinforcing ribs 102, the rib 106 is a solid rib protruding from the bottom plane of the backplate body 1, similar to the rib 101' in comparative example 1, two ends of the rib 106 are connected to the side walls 104 of the groove structure, and the length direction of the rib 106 is perpendicular to the length direction of the reinforcing rib 102 structure. The ribs 106 separated by a rib 102 structure are not continuous along their length, i.e., the ribs 106 are staggered along their length.

Comparative example 2, as shown in fig. 6, in this comparative example, longitudinal beads 103' are provided at the same positions as those of the beads 106 provided in example 2, on the basis of comparative example 1.

Embodiment 3, please refer to fig. 7, this embodiment is based on embodiment 1, and the position of the reinforcing rib 106 provided in embodiment 2 is replaced by providing a secondary reinforcing rib 107 structure, the secondary reinforcing rib 106 structure is similar to the reinforcing rib 102 structure, the secondary reinforcing rib 106 structure is a secondary groove structure formed by bending the bottom plane of the bottom guard plate body 1, and the secondary groove structure is in cross communication with the groove structure. Also, the expression of bending is used here, but it is only used to indicate the structural shape and not the process of preparation, and the preparation of this embodiment can be directly molded by injection molding.

Comparative example 3, please refer to fig. 8, in this comparative example, on the basis of comparative example 2, a longitudinal reinforcing rib 103 'is arranged in parallel laterally on each longitudinal reinforcing rib 103'. The two ribs 103' are made to correspond to the positions of the side walls 108 of the secondary groove structure in embodiment 3. The ribs 101' connected to these longitudinal ribs 103' are also interrupted and only the parts between the longitudinal ribs 103' that are further apart remain.

In the above examples 1 to 3 and comparative examples 1 to 3, on the premise of ensuring that the cross-sectional areas of the bottom guard plates are the same (the reinforcing ribs and the reinforcing rib structures are the same in material thickness), the deformation is verified by applying the same force through CAE analysis and using a controlled variable method. Wherein all the structural materials are PP-EPDM REC100 (CK-95305), the modulus is 800MPa, and the density is 0.91g/cm ³ The boundary conditions are as follows: carrying out full constraint at the same position, and carrying out an experimental method: a 1G gravity was applied. The results were: the deformation of the structure at the middle position of the embodiment 1 is 10.62mm, the deformation of the structure at the middle position of the comparative example 1 is 11.14mm, and the deformation of the structure at the middle position of the embodiment 1 is improved by about 4.7 percent compared with that of the comparative example 1; the deformation of the structure at the middle position of the embodiment 2 is 9.83mm, the deformation of the structure at the middle position of the comparative example 2 is 10.71mm, and the deformation of the structure at the middle position of the embodiment 2 is improved by about 8.2 percent compared with that of the comparative example 2; the deformation of the middle position structure of the embodiment 3 is 7.35mm, the deformation of the middle position structure of the comparative example 3 is 10.45mm, and the improvement of the embodiment 3 is about 29.6 percent compared with the comparative example 3. It is thus clear that, again under the same sectional area, the utility model discloses the intensity of structure is because prior art structure.

Claims

1. The automobile bottom guard plate with the reinforcing structure comprises a bottom guard plate body and is characterized in that the bottom guard plate body is provided with a plurality of reinforcing rib structures arranged in parallel, and each reinforcing rib structure is a groove structure formed by bending the bottom plane of the bottom guard plate body.

2. The underbody shield with reinforcing structure as claimed in claim 1, wherein a rib is disposed between adjacent rib structures, the rib protrudes from the bottom plane of the underbody shield body, and both ends of the rib are connected to the side walls of the groove structure.

3. The floor sheathing with a reinforcing structure according to claim 2, wherein the reinforcing ribs have a length direction perpendicular to a length direction of the reinforcing rib structure.

4. The underbody shield with reinforcing structure as claimed in claim 1, wherein a secondary rib structure is provided between adjacent rib structures, and the secondary rib structure is a secondary groove structure formed by bending the bottom plane of the underbody shield body, and the secondary groove structure is in cross communication with the groove structure.

5. The underbody shield with reinforcing structure as claimed in claim 4, wherein a length direction of said secondary rib structure is perpendicular to a length direction of said rib structure.

6. The floor sheathing with a reinforcing structure according to any one of claims 1, 2 and 4, wherein the side wall of the groove structure is provided with a drainage hole.