Three-dimensional radian front wall bumper of passenger car
By adopting a three-dimensional arc design and a combination of a variety of high-performance plastic materials on the front bumper of the passenger bus, the problem of insufficient collision strength in the existing bumper design is solved, and higher structural strength and durability are achieved and service life is extended.
Patent Information
- Application Number
- CN202421563669.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The front bumper of existing buses is mostly designed with flat or simple curved surfaces, resulting in less collision strength and easy damage, reducing service life.
A three-dimensional curved front bumper for passenger cars was designed, using carbon fiber reinforced plastic and glass fiber reinforced plastic reinforced structure, combining polyester, polypropylene and polycarbonate plastic materials, and improving the structural strength and durability of the bumper through alloy injection molding.
It improves the structural strength and durability of the bumper, enhances the collision strength, extends the service life, and has welding and good coating performance.
Smart Images

Figure CN222832805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of front bumpers, in particular to a three-dimensional arc front bumper for a passenger car. Background Art
[0002] Automobile bumpers, also known as anti-collision beams, are safety devices located at the front and rear ends of automobiles. Their main function is to absorb and mitigate external impact forces and protect the front and rear parts of the automobile body from damage. Modern automobile bumpers are usually composed of three parts: outer panels, buffer materials, and crossbeams. The outer panels and buffer materials are made of plastic, and the crossbeams are stamped from cold-rolled sheets and connected to the longitudinal beams of the frame, which can be disassembled at any time. These bumpers are usually made of polyester and polypropylene materials through injection molding, so the three-dimensional curved front bumper of buses is needed;
[0003] Currently, most of the front bumpers of buses on the market adopt a flat or simple curved design. Although this design meets the basic protection function, its collision strength is relatively small. When the bumper collides, it is easy to be damaged, thus reducing the service life of the bumper. Utility Model Content
[0004] The utility model aims to provide a three-dimensional curved front bumper for a passenger car, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-dimensional curved front bumper for a passenger car, comprising a bumper body,
[0006] A reinforcement plate fixedly mounted on the top of the bumper body;
[0007] and an auxiliary component disposed at the side wall of the bumper body; the auxiliary component includes a mounting mechanism at the inner wall of the bumper body;
[0008] The inner wall of the bumper body is provided with an auxiliary mechanism.
[0009] Preferably, there are two reinforcement plates, and the two reinforcement plates are equal in shape and size, and the stability of the bumper body can be improved by the reinforcement plates.
[0010] Preferably, the mounting mechanism comprises a stabilizing plate, the stabilizing plate is fixedly mounted on the inner wall of the bumper body, a mounting plate is fixedly mounted on the side wall of the stabilizing plate, and a mounting block is fixedly mounted on the inner wall of the mounting plate.
[0011] Preferably, an inclined bracket is fixedly mounted on the side wall of the mounting plate, and the other end of the inclined bracket is fixedly connected to the side wall of the stabilizing plate.
[0012] Preferably, there are two mounting plates, the two mounting plates are equal in shape and size, and the two mounting plates are symmetrically arranged relative to a middle plane of the bumper body in the left-right direction.
[0013] Preferably, the auxiliary mechanism includes a first reinforcement layer, a second reinforcement layer, a third reinforcement layer, a fourth reinforcement layer, and a bumper outer shell layer, the inner wall of the bumper outer shell layer is fixedly connected to the side wall of the first reinforcement layer, the second reinforcement layer is fixedly installed on the side wall of the first reinforcement layer, the third reinforcement layer is fixedly installed on the other side of the second reinforcement layer, the fourth reinforcement layer is fixedly installed on the other side of the third reinforcement layer, and the other side of the fourth reinforcement layer is fixedly connected to the inner wall of the bumper outer shell layer.
[0014] Preferably, the material of the first reinforcement layer is carbon fiber reinforced plastic, the material of the second reinforcement layer is glass fiber reinforced plastic, the material of the third reinforcement layer is polypropylene, the material of the fourth reinforcement layer is polycarbonate plastic, and the material of the bumper outer shell layer is polyester.
[0015] The utility model provides a three-dimensional curved front bumper for a passenger car, which has the following beneficial effects:
[0016] (1) The utility model uses carbon fiber reinforced plastic and glass fiber reinforced plastic to ensure the structural strength and durability of the bumper. By using polyester, it can achieve the characteristics of high melting point, heat resistance, low density and good corrosion resistance. It is the lightest type of general plastic and has relatively good strength, rigidity and transparency. By using polypropylene, it can achieve good impact resistance and corrosion resistance, and polypropylene plastic has good heat resistance and chemical corrosion resistance. By using polycarbonate plastic, adding alloy components and adopting alloy injection molding method, this bumper not only has high strength and rigidity, but also has the advantage of being weldable and has good coating performance. It solves the problem that most of the front bumpers of buses on the market currently adopt a flat or simple curved surface design. Although this design meets the basic protection function, its collision strength is relatively small. When the bumper collides, it is easy to be damaged, thereby reducing the service life of the bumper.
[0017] (2) According to the utility model, the operator can directly install the bumper body in the front position of the vehicle by passing the bolts through the inner wall of the mounting block and rotating it. The stability of the bumper body can be improved by the mounting plate and the stabilizing plate, so that the operator can better use the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model;
[0019] Figure 2This is a schematic diagram of the back structure of the utility model;
[0020] Figure 3 For this utility model Figure 3 A partial enlarged view of the
[0021] Figure 4 It is a schematic diagram of the internal structure of the bumper body of the utility model.
[0022] In the figure: 1. bumper body; 2. reinforcement plate; 4. auxiliary component; 41. mounting mechanism; 411. stabilizing plate; 412. mounting plate; 413. tilt bracket; 414. mounting block; 42. auxiliary mechanism; 421. first reinforcement layer; 422. second reinforcement layer; 423. third reinforcement layer; 424. fourth reinforcement layer; 425. bumper outer shell layer. DETAILED DESCRIPTION
[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.
[0024] Example 1
[0025] A preferred embodiment of a three-dimensional curved front bumper for a passenger car provided by the utility model is as follows: Figures 1 to 4 As shown: A three-dimensional curved front bumper for a passenger car, comprising a bumper body 1,
[0026] A reinforcement plate 2 fixedly mounted on the top of the bumper body 1, wherein there are two reinforcement plates 2, and the two reinforcement plates 2 are equal in shape and size, and the stability of the bumper body 1 can be improved by the reinforcement plates 2;
[0027] and an auxiliary component 4 disposed at a side wall of the bumper body 1; the auxiliary component 4 includes a mounting mechanism 41 at an inner wall of the bumper body 1;
[0028] An auxiliary mechanism 42 is provided on the inner wall of the bumper body 1 .
[0029] The mounting mechanism 41 includes a stabilizing plate 411 , which is fixedly mounted on the inner wall of the bumper body 1 , a mounting plate 412 is fixedly mounted on the side wall of the stabilizing plate 411 , and a mounting block 414 is fixedly mounted on the inner wall of the mounting plate 412 .
[0030] In this embodiment, an inclined bracket 413 is fixedly mounted on the side wall of the mounting plate 412 , and the other end of the inclined bracket 413 is fixedly connected to the side wall of the stabilizing plate 411 .
[0031] Furthermore, there are two mounting plates 412 , the two mounting plates 412 are equal in shape and size, and the two mounting plates 412 are symmetrically arranged relative to the middle surface of the bumper body 1 in the left-right direction.
[0032] During the specific implementation process, when the operator uses the device, the bumper body 1 can be directly installed in the front position of the vehicle by passing the bolts through the inner wall of the mounting block 414 and rotating it. The stability of the bumper body 1 can be improved by the mounting plate 412 and the stabilizing plate 411.
[0033] Example 2
[0034] Based on Example 1, a preferred embodiment of a three-dimensional curved front bumper for a passenger car provided by the utility model is as follows: Figures 1 to 4 As shown: the auxiliary mechanism 42 includes a first reinforcement layer 421, a second reinforcement layer 422, a third reinforcement layer 423, a fourth reinforcement layer 424, and a bumper outer shell layer 425, the inner wall of the bumper outer shell layer 425 is fixedly connected to the side wall of the first reinforcement layer 421, the second reinforcement layer 422 is fixedly installed on the side wall of the first reinforcement layer 421, the third reinforcement layer 423 is fixedly installed on the other side of the second reinforcement layer 422, the fourth reinforcement layer 424 is fixedly installed on the other side of the third reinforcement layer 423, and the other side of the fourth reinforcement layer 424 is fixedly connected to the inner wall of the bumper outer shell layer 425.
[0035] In this embodiment, the material of the first reinforcement layer 421 is carbon fiber reinforced plastic, the material of the second reinforcement layer 422 is glass fiber reinforced plastic, the material of the third reinforcement layer 423 is polypropylene, the material of the fourth reinforcement layer 424 is polycarbonate plastic, and the material of the bumper outer shell layer 425 is polyester;
[0036] Carbon fiber reinforced plastics and glass fiber reinforced plastics are used to ensure the structural strength and durability of the bumper. By using polyester series, it can achieve the characteristics of high melting point, heat resistance, low density and good corrosion resistance. It is the lightest type of general plastics, and its strength, rigidity and transparency are also relatively good. By using polypropylene series, good impact resistance and corrosion resistance are achieved, and polypropylene series plastics have good heat resistance and chemical corrosion resistance. By using polycarbonate series plastics, adding alloy components and adopting alloy injection molding methods, this bumper not only has high-strength rigidity, but also has the advantage of being weldable, and has good coating performance, which solves the problem that most of the front bumpers of buses on the market currently adopt flat or simple curved surface design. Although this design meets the basic protection function, its collision strength is relatively small. When the bumper collides, it is easy to be damaged, thus reducing the service life of the bumper.
[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A three-dimensional curved front bumper for a passenger car, comprising a bumper body (1), A reinforcing plate (2) fixedly mounted on the top of the bumper body (1); and an auxiliary component (4) arranged at a side wall of the bumper body (1); characterized in that: The auxiliary component (4) comprises a mounting mechanism (41) at an inner wall position of the bumper body (1); The inner wall of the bumper body (1) is provided with an auxiliary mechanism (42), the auxiliary mechanism (42) comprising a first reinforcement layer (421), a second reinforcement layer (422), a third reinforcement layer (423), a fourth reinforcement layer (424), and a bumper outer shell layer (425), the inner wall of the bumper outer shell layer (425) being fixedly connected to the side wall of the first reinforcement layer (421), the second reinforcement layer (422) being fixedly mounted on the side wall of the first reinforcement layer (421), and the other side of the second reinforcement layer (422) being fixedly mounted with the third reinforcement layer ( 423), a fourth reinforcement layer (424) is fixedly installed on the other side of the third reinforcement layer (423), and the other side of the fourth reinforcement layer (424) is fixedly connected to the inner wall of the bumper outer shell layer (425), the material of the first reinforcement layer (421) is carbon fiber reinforced plastic, the material of the second reinforcement layer (422) is glass fiber reinforced plastic, the material of the third reinforcement layer (423) is polypropylene, the material of the fourth reinforcement layer (424) is polycarbonate plastic, and the material of the bumper outer shell layer (425) is polyester.
2. The three-dimensional curved front bumper for a passenger car according to claim 1, characterized in that: There are two reinforcement plates (2), and the two reinforcement plates (2) are equal in shape and size.
3. The three-dimensional curved front bumper for a passenger car according to claim 1, characterized in that: The mounting mechanism (41) comprises a stabilizing plate (411), the stabilizing plate (411) being fixedly mounted on the inner wall of the bumper body (1), a mounting plate (412) being fixedly mounted on the side wall of the stabilizing plate (411), and a mounting block (414) being fixedly mounted on the inner wall of the mounting plate (412).
4. The three-dimensional curved front bumper for a passenger car according to claim 3, characterized in that: An inclined bracket (413) is fixedly mounted on the side wall of the mounting plate (412), and the other end of the inclined bracket (413) is fixedly connected to the side wall of the stabilizing plate (411).
5. The three-dimensional curved front bumper for a passenger car according to claim 4, characterized in that: There are two mounting plates (412), the two mounting plates (412) are equal in shape and size, and the two mounting plates (412) are symmetrically arranged relative to the middle surface of the bumper body (1) in the left-right direction.