Front bumper lower guard plate fixing structure and vehicle

Abstract

The utility model discloses a front bumper lower guard plate fixing structure and a vehicle, which belong to the technical field of automobile part design and manufacture, are mounted between an auxiliary anti-collision beam and a lower guard plate, and comprise a fixing main body, the fixing main body is formed by reciprocating bending along the Y direction of the vehicle, the fixing main body comprises a plurality of bending plates, and the bending plates are arranged on the fixing main body. A reinforcing piece is connected between every two adjacent bent plates to form a triangular structure. And the bending plate and the reinforcing piece are respectively provided with a latticed reinforcing structure. The latticed reinforcing structure comprises a plurality of triangular grids, rhombic grids or polygonal grids. The fixing structure is stable in force transmission, and the lower protection plate is fixed under the conditions that a front-end frame is not arranged, the distance between a mounting point of the lower protection plate and peripheral parts is too far, the span in the X direction and the Y direction of the periphery is large, and the gap in the Z direction is small. The fixing structure is an integrated injection molding part and is of a closed structure, the overall mode of the connecting structure of the front bumper and the anti-collision beam is better, and the collision effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive part design and manufacturing, in particular to a fixing structure for a front bumper lower guard plate and a vehicle. Background Art

[0002] In the prior art regarding the fixing method of the lower guard plate, traditional vehicles use multiple split brackets or integrate them with the front-end frame for fixing. However, for the situation where there is no front-end frame, the installation points of the lower guard plate are too far from the surrounding parts, the X and Y spans of the surrounding are large, and the Z gap is small, there is currently no reliable fixing device. Summary of the Utility Model

[0003] The utility model aims to at least solve the technical problem that it is difficult to fix the lower guard plate in the prior art when there is no front-end frame, the installation points of the lower guard plate are too far from the surrounding parts, the X and Y spans of the surrounding are large, and the Z gap is small.

[0004] To this end, an object of the utility model is to provide a fixing structure for a front bumper lower guard plate, which is installed between the sub-frame and the lower guard plate and includes a fixing main body formed by reciprocally bending along the vehicle Y direction. The fixing main body includes a plurality of bending plates, and a reinforcing member is connected between adjacent two bending plates to form a triangular structure. The Y-span of the fixing main body is relatively large and the structure is relatively brittle. A transverse reinforcing member is combined with it to form a triangular support structure, enhancing the static stiffness, dynamic stiffness of the mounting holes and the overall force-bearing effect to make it more stable.

[0005] Further, the bending plates and the reinforcing members are respectively provided with a grid-shaped reinforcing structure.

[0006] Further, the bending plates and the reinforcing members respectively have a reinforcing cavity, and a grid-shaped reinforcing structure formed by a plurality of reinforcing ribs is arranged in the reinforcing cavity.

[0007] Further, the grid-shaped reinforcing structure includes a plurality of triangular grids, diamond grids or polygon grids. Preferably, it is a triangular grid, and the internal continuous triangular structure reinforcing ribs support the main body to make the force transmission more stable.

[0008] Further, the triangular grids on the bending plates and the reinforcing members are arranged along the length directions of the bending plates and the reinforcing members, and the "regular triangular grids" and "inverted triangular grids" on the bending plates and the reinforcing members are arranged alternately, increasing the setting density of the triangular grids, improving the stiffness of the bending plates and the reinforcing members, and making the force transmission between the sub-frame and the lower guard plate more stable.

[0009] Further, the fixed main body is provided with a first mounting hole connected to the secondary anti-collision beam and a second mounting hole connected to the lower guard plate. The first mounting hole is provided at the bent portion of the two bent plates and / or the end of the bent plate, and the second mounting hole is provided at the bent portion of the two bent plates and / or the end of the bent plate.

[0010] Further, the fixed main body is provided with a mounting groove, and the second mounting hole is opened in the mounting groove.

[0011] Further, the fixed main body is in a "W" shape or an "M" shape.

[0012] When the fixed main body is in an "M" shape structure, the number of the first mounting holes is two, and the number of the second mounting holes is three; when the fixed main body is in a "W" shape structure, the number of the first mounting holes is three, and the number of the second mounting holes is two.

[0013] Further, the fixed main body and the reinforcing member are of an integral structure.

[0014] Further, the material of the fixed main body is a composite material composed of polyamide 6 and a glass fiber reinforcement, and the composite material has good mechanical properties and heat resistance.

[0015] Further, the dimensions of the fixed main body are 621 mm in the Y direction, 110 mm in the X direction, and 52 mm in the Z direction.

[0016] The present utility model provides a vehicle, including the above-mentioned front bumper lower guard plate fixing structure.

[0017] The front bumper lower guard plate fixing structure and the vehicle of the present utility model have the following beneficial effects:

[0018] In the case of no front end frame, the installation points of the lower guard plate are too far from the surrounding parts, the surrounding X and Y spans are large, and the Z gap is small, the fixing of the lower guard plate can be realized; the fixing structure of the present utility model has few parts and a simple structure, and this fixing structure can be used for connection for different vehicle models and different structures; the fixing structure is a triangular structure, and the force transmission is stable; the bent plates and the reinforcing member are provided with a grid-shaped reinforcing structure, and the grid-shaped reinforcing structure includes a plurality of triangular grids, and the inside is supported by a continuous triangular structure reinforcing rib to make the force transmission more stable; this fixing structure is an integral injection molding part and is a closed structure, realizing a better overall mode of the connection structure between the front bumper and the anti-collision beam and increasing the collision effect. Description of the Drawings

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is an assembly schematic diagram of a fixing structure for the lower front bumper guard in an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a fixing structure for the lower front bumper guard in an embodiment of the present invention;

[0022] Figure 3 is a side view of a fixing structure for the lower front bumper guard in an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the lower front bumper guard of a fixing structure for the lower front bumper guard in an embodiment of the present invention.

[0024] Reference numerals:

[0025] 100, fixing main body; 101, bending plate; 102, strengthening member; 103, first mounting hole; 104, second mounting hole; 200, sub-collision beam; 300, lower front bumper guard. Detailed embodiments

[0026] Reference is made herein to the various aspects and features of the present invention with reference to the drawings.

[0027] It should be understood that various modifications can be made to the embodiments claimed herein. Therefore, the above description should not be construed as limiting, but merely as exemplary of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present invention.

[0028] The drawings included in and forming a part of the specification illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0029] These and other features of the present invention will become apparent from the following description of the preferred forms of the embodiments given by way of non-limiting example with reference to the drawings.

[0030] It should also be understood that although the present utility model has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present utility model, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0031] When combined with the accompanying drawings, the above and other aspects, features and advantages of the present utility model will become more apparent in view of the following detailed description.

[0032] Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present utility model, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present utility model with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but are merely used as a basis and representative basis for the claims to teach those skilled in the art to use the present utility model in substantially any suitable detailed structure in a variety of ways.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0034] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0035] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0036] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0037] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0038] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0040] The following is an explanation of the relevant term names in the embodiments:

[0041] Auxiliary anti-collision beam: The auxiliary anti-collision beam is arranged below the front anti-collision beam of the vehicle body and is connected to the vehicle body or the front subframe assembly. The layout structure of the upper and lower anti-collision beams effectively increases the collision contact area and reduces the collision intrusion position as much as possible, thereby effectively protecting the safety of the occupants; in the prior art, the auxiliary anti-collision beam cross member in the auxiliary anti-collision beam assembly is generally an arc-shaped plate structure or an arc-shaped hollow tube structure.

[0042] Under guard: The under guard is installed at the lower part where the front bumper is provided, and is used to protect the engine and chassis components from damage by protrusions on the ground and to smooth the air flow on the lower part of the vehicle; the under guard of the vehicle performs the function of protecting various components provided at the lower part of the vehicle to reduce air resistance during the driving of the vehicle and prevent projectiles from the road.

[0043] Embodiment 1

[0044] As Figure 1 and Figure 2 shown, this embodiment provides a fixing structure for the front bumper under guard. The fixing main body 100 is installed between the auxiliary anti-collision beam 200 and the under guard 300. The fixing main body 100 is formed by reciprocally bending along the vehicle Y direction. The fixing main body 100 includes a plurality of bending plates 101, and a reinforcing member 102 is connected between two adjacent bending plates 101 to form a triangular structure, making the force transmission more stable and the structure more firm.

[0045] The bending plates 101 and the reinforcing member 102 are respectively provided with a grid-shaped reinforcing structure for increasing the rigidity and strength of the structure itself.

[0046] Specifically, the grid-like strengthening structures provided on the bending plate 101 and the strengthening member 102 both include multiple triangular grids, diamond grids or polygonal grids, preferably triangular grids. The continuous triangular structure reinforcing ribs are used inside to support the main body, making the force transmission more stable and the overall structure connection more firm.

[0047] As Figure 4 shown, the triangular grids on the bending plate 101 and the strengthening member 102 are arranged along the length direction of the bending plate 101 and the strengthening member 102. The "regular triangular grids" and "inverted triangular grids" on the bending plate 101 and the strengthening member 102 are arranged alternately, increasing the setting density of the triangular grids and improving the stiffness of the bending plate 101 and the strengthening member 102, making the force transmission between the secondary anti-collision beam 200 and the lower guard plate 300 more stable.

[0048] The fixed main body 100 is provided with a first mounting hole 103 connected to the secondary anti-collision beam 200 and a second mounting hole 104 connected to the lower guard plate 300. The first mounting hole 103 is provided at the bending part and / or the end of the two bending plates 101, and the second mounting hole 104 is provided at the bending part and / or the end of the two bending plates 101.

[0049] Specifically, the lower guard plate 300 includes a cover plate main body 301 and a third mounting hole 302 provided inside the cover plate main body 300. The cover plate main body 301 is an arc-shaped structure. The secondary anti-collision beam 200 is arranged inside the cover plate main body 300, and the secondary anti-collision beam 200 is arranged between the cover plate main body 300 and the third mounting hole 300. The third mounting hole 302 is connected to the second mounting hole 104 through bolts to realize the connection between the lower guard plate 300 and the secondary anti-collision beam 200.

[0050] In the case where there is no front end frame, the installation points of the lower guard plate are too far from the surrounding parts, the X and Y spans of the surrounding parts are large, and the Z gap is small. The first mounting hole 103 on the fixed main body 100 of the present invention is connected to the secondary anti-collision beam 200, and the second mounting hole 104 on the fixed main body 100 is connected to the third mounting hole 302 of the lower guard plate 300, which can realize the fixation of the lower guard plate. The fixed structure of the present invention has few parts and a simple structure, and this fixed structure can be used for connection in different vehicle models and different structures. This fixed structure is a triangular structure, and the force transmission is stable. The bending plate and the strengthening member are provided with grid-like strengthening structures, and the grid-like strengthening structures include multiple triangular grids. The continuous triangular structure reinforcing ribs are used inside to support the main body, making the force transmission more stable.

[0051] Embodiment 2

[0052] As Figure 1 and Figure 2As shown in the figure, this embodiment provides a fixing structure for the front bumper lower guard. The fixing main body 100 is installed between the sub-frontal impact beam 200 and the lower guard 300. The fixing main body 100 is formed by reciprocally bending along the vehicle Y direction. The fixing main body 100 includes a plurality of bending plates 101, and a reinforcing member 102 is connected between two adjacent bending plates 101 to form a triangular structure, making the force transmission smoother and the structure more stable.

[0053] The bending plates 101 and the reinforcing member 102 are respectively provided with a grid-like reinforcing structure for increasing the rigidity and strength of the structure itself.

[0054] The difference between this embodiment and the above embodiments is as follows:

[0055] The fixing main body 100 is of a "W" shape or an "M" shape structure. When the fixing main body 100 is of an "M" shape structure, the number of the first mounting holes 103 is two, and the number of the second mounting holes 104 is three; when the fixing main body 100 is of a "W" shape structure, the number of the first mounting holes 103 is three, and the number of the second mounting holes 104 is two.

[0056] The bending plates 101 and the reinforcing member 102 are integrally injection-molded parts.

[0057] The fixing main body 100 is provided with a mounting groove, and the second mounting holes 104 are opened in the mounting groove.

[0058] The dimensions of the fixing main body 100 are approximately 621 mm in the Y direction, 110 mm in the X direction, and 52 mm in the Z direction.

[0059] The fixing main body 100 has a relatively large span in the Y direction and a relatively brittle structure. The transverse reinforcing member 102 is combined with it to form a triangular support structure, enhancing the static stiffness, dynamic stiffness of the mounting holes and the overall force-bearing effect to be stable;

[0060] The fixing main body 100 is injection-molded from a composite material composed of polyamide 6 and a glass fiber reinforcement to improve its mechanical properties and heat resistance.

[0061] As Figure 3 shown, the material thickness is 4 - 5 mm. The fixing main body 100 is a grid-reinforced structure to increase its own rigidity and strength; the present utility model designs a "W" shape or an "M" shape structure in the Y direction, and adds a transverse reinforcing member 102 in the X direction to form a closed structure, making the force transmission slow and smooth, increasing the collision effect; the second mounting holes 104 are formed by hollowing out and reserving a thickness of 4 mm for bolting, enhancing the connection effect.

[0062] Embodiment 3

[0063] As Figure 1 and Figure 2As shown in the figure, this embodiment provides a fixing structure for the front bumper lower guard plate. The fixing main body 100 is installed between the sub-frontal impact beam 200 and the lower guard plate 300. The fixing main body 100 is formed by reciprocally bending along the Y-direction of the vehicle. The fixing main body 100 includes a plurality of bending plates 101, and a reinforcing member 102 is connected between two adjacent bending plates 101 to form a triangular structure, making the force transmission smoother and the structure more stable.

[0064] The bending plates 101 and the reinforcing members 102 are respectively provided with a grid-shaped reinforcing structure for increasing the rigidity and strength of the structure itself.

[0065] The bending plates 101 and the first reinforcing members 102 respectively have reinforcing cavities, and a grid-shaped reinforcing structure formed by a plurality of reinforcing ribs is provided in the reinforcing cavities to enhance the overall strength and stiffness.

[0066] In the case where there is no front-end frame, the installation point of the lower guard plate is too far from the surrounding parts, the X-direction and Y-direction spans of the surrounding parts are large, and the Z-direction clearance is small, this fixing structure can realize the fixing of the lower guard plate; the fixing structure of the present utility model has few parts and a simple structure, and this fixing structure can be used for connection in different vehicle models and different structures; this fixing structure is a triangular structure, and the force transmission is stable.

[0067] Embodiment 4

[0068] This embodiment provides a vehicle, including the above-mentioned fixing structure for the front bumper lower guard plate, which can realize the fixing of the lower guard plate of the vehicle in the case where there is no front-end frame, the installation point of the lower guard plate is too far from the surrounding parts, the X-direction and Y-direction spans of the surrounding parts are large, and the Z-direction clearance is small.

Claims

1. A fixing structure for a front bumper lower guard plate, characterized in that, It is installed between the secondary anti-collision beam and the lower guard plate, and includes a fixed main body which is formed by reciprocally bending along the vehicle Y direction. The fixed main body includes a plurality of bending plates, and a reinforcing member is connected between two adjacent bending plates to form a triangular structure.

2. The front bumper lower guard fixing structure according to claim 1, characterized in that, The bending plates and the reinforcing members are respectively provided with a grid-shaped reinforcing structure.

3. The front bumper lower guard plate fixing structure according to claim 2, characterized in that, The bending plates and the reinforcing members respectively have a reinforcing cavity, and a grid-shaped reinforcing structure formed by a plurality of reinforcing ribs is arranged in the reinforcing cavity.

4. The front bumper lower guard plate fixing structure according to claim 2, characterized in that The grid-shaped reinforcing structure includes a plurality of triangular grids, diamond grids or polygonal grids.

5. The front bumper lower guard fixing structure according to claim 1, characterized in that, The fixed main body is provided with a first mounting hole connected to the secondary anti-collision beam and a second mounting hole connected to the lower guard plate. The first mounting hole is arranged at the bending part of two of the bending plates and / or the end of the bending plate, and the second mounting hole is arranged at the bending part of two of the bending plates and / or the end of the bending plate.

6. The front bumper lower guard fixing structure according to claim 5, characterized in that, The fixed main body is provided with a mounting groove, and the second mounting hole is opened in the mounting groove.

7. The front bumper lower guard fixing structure according to claim 1, characterized in that, The fixed main body is in a "W" shape or an "M" shape.

8. The front bumper lower guard fixing structure according to claim 1, wherein, The fixed main body and the reinforcing member are of an integral structure.

9. The front bumper lower guard fixing structure according to claim 1, characterized in that, The material of the fixed main body is a composite material composed of polyamide 6 and a glass fiber reinforcement.

10. A vehicle, characterized in that, It includes the front bumper lower guard plate fixing structure according to any one of claims 1-9.

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