Passenger car rear bumper beam assembly

Abstract

The utility model relates to the technical field of automobile rear buffer beam, and disclose a passenger car rear buffer beam assembly, including rear buffer beam body, the lower surface of rear buffer beam body is installed with two groups of energy absorption box, one end of two groups of energy absorption box is installed with first buffer backplate and second buffer backplate respectively, the outer surface of first buffer backplate and second buffer backplate all are set up four groups of mounting hole, the outer surface of first buffer backplate and second buffer backplate all are set up center hole, one side of two groups of energy absorption box all is installed with reinforcing mechanism. The utility model discloses the overall setting of reinforcing mechanism reaches the reinforcing support of rear buffer beam body suspension department, improved the anti -collision ability avoided the rear buffer beam body easy to appear the situation of bending damage.

Description

Technical Field

[0001] This utility model relates to the field of automotive rear buffer beam technology, specifically a rear buffer beam assembly for passenger vehicles. Background Technology

[0002] The rear impact beam assembly is a crucial component of a vehicle's rear anti-collision structure. Its primary function is to absorb and cushion energy during a rear-end collision, reducing the impact on the vehicle frame and other components to protect the safety of passengers. Generally, it comprises components such as crossbeams and energy-absorbing boxes.

[0003] The utility model patent application with publication number "CN220447822U" discloses a rear buffer beam assembly, belonging to the field of automotive technology. One surface of the rear buffer beam is fixedly mounted with symmetrical rear energy-absorbing boxes and rear sleeves. The surfaces of the two symmetrical rear energy-absorbing boxes are respectively fixedly connected to a first rear buffer backplate and a second rear buffer backplate. Both the first and second rear buffer backplates have mounting holes and a center hole on their surfaces. The other surface of the rear buffer beam is fixedly connected to two radar anti-collision supports. This rear buffer beam assembly, with its rear buffer beam, rear energy-absorbing boxes, and rear buffer backplates, allows the impact force to be gradually reduced during a collision, thereby significantly reducing the impact force and improving the safety of occupants. Furthermore, the anti-rotation holes not only improve the installation stability of the radar but also, through the radar anti-collision supports, provide excellent protection for the installed radar, extending its service life.

[0004] The rear buffer beam assembly disclosed in the aforementioned document has the following defects: The structure of the rear buffer beam, rear energy-absorbing box, and rear buffer backplate in this assembly can gradually reduce the impact force when the car is involved in a collision, thereby greatly reducing the impact force and improving the safety of the occupants. In addition, the anti-rotation holes not only improve the installation stability of the radar, but also provide good protection for the installed radar through the radar anti-collision support plate, extending the service life of the radar. However, there is a large area of ​​unsupported space between the two sets of rear energy-absorbing boxes and the rear buffer beam in this technical solution. As a result, the rear buffer beam is prone to bending and damage from the unsupported space when it is hit, resulting in relatively low impact resistance.

[0005] Therefore, it can be seen that the existing rear buffer beam assembly does not have a good impact resistance structure, and it is necessary to improve the existing shortcomings and provide a rear buffer beam assembly for passenger vehicles. Utility Model Content

[0006] The purpose of this utility model is to provide a rear buffer beam assembly for passenger vehicles to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a rear buffer beam assembly for a passenger vehicle, comprising a rear buffer beam body. Two sets of energy-absorbing boxes are installed on the lower surface of the rear buffer beam body. A first buffer back plate and a second buffer back plate are respectively installed at one end of the two sets of energy-absorbing boxes. Four sets of mounting holes are opened on the outer surface of the first buffer back plate and the second buffer back plate. A central hole is opened on the outer surface of the first buffer back plate and the second buffer back plate. A reinforcement mechanism is installed on one side of each set of energy-absorbing boxes.

[0008] Furthermore, a radar harness hole is provided on the upper surface of the rear buffer beam body, a rear sleeve is installed inside the rear buffer beam body, and two sets of radar anti-collision blocks are installed on the upper surface of the rear buffer beam body.

[0009] Furthermore, the reinforcement mechanism includes a first connecting plate, a support plate, a reinforcement plate, a mounting sleeve, a buffer spring, a movable block, a vertical rod, and a second connecting plate. The first connecting plate is installed on one side of the energy-absorbing box, and the support plate is fixedly installed on one side of the first connecting plate. The reinforcement plate is installed on the outer surface of the support plate, and one end of the reinforcement plate is connected to the outer surface of the energy-absorbing box.

[0010] Furthermore, an installation sleeve is installed on the outer surface of the support plate, and a buffer spring is fixedly installed inside the installation sleeve. A movable block is installed at one end of the buffer spring, and the movable block is slidably connected to the inner wall of the installation sleeve.

[0011] Furthermore, a vertical rod is fixedly installed on the upper surface of the movable block, and the vertical rod extends to the outer surface of the mounting sleeve.

[0012] Furthermore, a second connecting plate is fixedly installed at one end of the upright, and the second connecting plate is connected to the outer surface of the rear buffer beam body.

[0013] This utility model has the following beneficial effects: (1) This utility model provides structural support through the first connecting plate and the support plate, enhances the connection strength between the energy-absorbing box and the rear buffer beam body, and the reinforcing plate further strengthens the combination of the support plate and the energy-absorbing box, improving the stability of the overall structure. The buffer spring is compressed during impact to absorb additional energy, and the movable block in the mounting sleeve slides along the sleeve to increase the efficiency of energy absorption. The upright and the second connecting plate tightly connect the reinforcing mechanism with the rear buffer beam body, ensuring that the reinforcing mechanism can play an effective role during impact. Through the overall setting of the reinforcing mechanism, the suspended part of the rear buffer beam body is reinforced and supported, improving the impact resistance and preventing the rear buffer beam body from being easily bent and damaged.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of one side of the overall structure of this utility model; Figure 2 This is a schematic diagram of the other side of the overall structure of this utility model; Figure 3 This is a schematic cross-sectional view of the reinforcement mechanism structure of this utility model; Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the diagram; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Rear buffer beam body; 101. Radar harness hole; 102. Rear sleeve; 103. Radar anti-collision block; 2. Energy absorption box; 3. First buffer back plate; 4. Second buffer back plate; 5. Mounting hole; 6. Center hole; 7. Reinforcing mechanism; 701. First connecting plate; 702. Support plate; 703. Reinforcing plate; 704. Mounting sleeve; 705. Buffer spring; 706. Movable block; 707. Upright pole; 708. Second connecting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 4 As shown, this utility model is a rear buffer beam assembly for a passenger vehicle, including a rear buffer beam body 1. Two sets of energy-absorbing boxes 2 are installed on the lower surface of the rear buffer beam body 1. A first buffer back plate 3 and a second buffer back plate 4 are respectively installed at one end of the two sets of energy-absorbing boxes 2. Four sets of mounting holes 5 are opened on the outer surface of the first buffer back plate 3 and the second buffer back plate 4. A central hole 6 is opened on the outer surface of the first buffer back plate 3 and the second buffer back plate 4. A reinforcement mechanism 7 is installed on one side of each set of energy-absorbing boxes 2. The upper surface of the rear buffer beam body 1 is provided with a radar wire harness hole 101, the interior of the rear buffer beam body 1 is provided with a rear sleeve 102, and the upper surface of the rear buffer beam body 1 is provided with two sets of radar anti-collision blocks 103. The reinforcement mechanism 7 includes a first connecting plate 701, a support plate 702, a reinforcement plate 703, a mounting sleeve 704, a buffer spring 705, a movable block 706, a vertical rod 707, and a second connecting plate 708. The first connecting plate 701 is installed on one side of the energy-absorbing box 2, and the support plate 702 is fixedly installed on one side of the first connecting plate 701. The reinforcement plate 703 is installed on the outer surface of the support plate 702, and one end of the reinforcement plate 703 is connected to the outer surface of the energy-absorbing box 2. An installation sleeve 704 is installed on the outer surface of the support plate 702. A buffer spring 705 is fixedly installed inside the installation sleeve 704. A movable block 706 is installed at one end of the buffer spring 705. The movable block 706 is slidably connected to the inner wall of the installation sleeve 704. A vertical rod 707 is fixedly installed on the upper surface of the movable block 706, and the vertical rod 707 extends to the outer surface of the mounting sleeve 704; A second connecting plate 708 is fixedly installed at one end of the upright 707, and the second connecting plate 708 is connected to the outer surface of the rear buffer beam body 1; The first connecting plate 701 and the support plate 702 provide structural support, enhancing the connection strength between the energy-absorbing box 2 and the rear buffer beam body 1. The reinforcing plate 703 further strengthens the combination of the support plate 702 and the energy-absorbing box 2, improving the stability of the overall structure. The buffer spring 705 compresses upon impact, absorbing additional energy. At the same time, the movable block 706 inside the mounting sleeve 704 slides along the sleeve, increasing the efficiency of energy absorption. The upright 707 and the second connecting plate 708 tightly connect the reinforcing mechanism 7 to the rear buffer beam body 1, ensuring that the reinforcing mechanism 7 can effectively function upon impact. Through the overall arrangement of the reinforcing mechanism 7, the suspended part of the rear buffer beam body 1 is reinforced and supported, improving the impact resistance and preventing the rear buffer beam body 1 from being easily bent and damaged.

[0019] In use, when the rear is impacted, the energy-absorbing box 2 absorbs the impact energy through structural deformation, reducing the impact on the vehicle body. The connection between the energy-absorbing box 2 and the first buffer back plate 3 and the second buffer back plate 4 ensures the effective transfer and dispersion of energy. The first connecting plate 701 and the support plate 702 provide structural support, enhancing the connection strength between the energy-absorbing box 2 and the rear buffer beam body 1. The reinforcing plate 703 further strengthens the combination of the support plate 702 and the energy-absorbing box 2, improving the stability of the overall structure. The buffer spring 705 compresses upon impact, absorbing additional energy. At the same time, the movable block 706 inside the mounting sleeve 704 slides along the sleeve, increasing the efficiency of energy absorption. The upright 707 and the second connecting plate 708 tightly connect the reinforcing mechanism 7 to the rear buffer beam body 1, ensuring that the reinforcing mechanism 7 can effectively function during impact. Through the overall arrangement of the reinforcing mechanism 7, the suspended part of the rear buffer beam body 1 is reinforced and supported, improving the impact resistance and preventing the rear buffer beam body 1 from being easily bent and damaged.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rear buffer beam assembly for a passenger vehicle, comprising a rear buffer beam body (1), wherein two sets of energy-absorbing boxes (2) are mounted on the lower surface of the rear buffer beam body (1), and a first buffer back plate (3) and a second buffer back plate (4) are respectively mounted on one end of the two sets of energy-absorbing boxes (2), and four sets of mounting holes (5) are provided on the outer surfaces of the first buffer back plate (3) and the second buffer back plate (4), and a central hole (6) is provided on the outer surfaces of the first buffer back plate (3) and the second buffer back plate (4), characterized in that: A reinforcement mechanism (7) is installed on one side of both sets of energy-absorbing boxes (2); The upper surface of the rear buffer beam body (1) is provided with a radar wire harness hole (101), the interior of the rear buffer beam body (1) is provided with a rear sleeve (102), and the upper surface of the rear buffer beam body (1) is provided with two sets of radar anti-collision blocks (103). The reinforcement mechanism (7) includes a first connecting plate (701), a support plate (702), a reinforcement plate (703), a mounting sleeve (704), a buffer spring (705), a movable block (706), a vertical rod (707), and a second connecting plate (708). The first connecting plate (701) is installed on one side of the energy-absorbing box (2), and the support plate (702) is fixedly installed on one side of the first connecting plate (701). The reinforcement plate (703) is installed on the outer surface of the support plate (702), and one end of the reinforcement plate (703) is connected to the outer surface of the energy-absorbing box (2). An installation sleeve (704) is installed on the outer surface of the support plate (702). A buffer spring (705) is fixedly installed inside the installation sleeve (704). A movable block (706) is installed at one end of the buffer spring (705). The movable block (706) is slidably connected to the inner wall of the installation sleeve (704). A vertical rod (707) is fixedly installed on the upper surface of the movable block (706), and the vertical rod (707) extends to the outer surface of the mounting sleeve (704).

2. The rear buffer beam assembly for a passenger vehicle according to claim 1, characterized in that: One end of the upright (707) is fixedly installed with a second connecting plate (708), which is connected to the outer surface of the rear buffer beam body (1).

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