Hydraulic linkage-based rear bumper balance and stability system

Abstract

The hydraulically linked rear bumper beam stabilization system includes: a bumper beam body, laterally mounted on the longitudinal beam at the rear of the vehicle; and a rear stabilization bracket system, installed below the bumper beam body, comprising a hydraulic rod, a long rod, and two sets of rear stabilization brackets symmetrically positioned on the left and right sides of the rear of the vehicle. The middle sections of the rear stabilization brackets are hinged to the longitudinal beam at the rear of the vehicle. In summary, this invention utilizes the linkage structure between the hydraulic rod and the long rod in the rear stabilization bracket system to drive the hydraulic rod to generate controllable damping force during a collision, efficiently absorbing impact energy. Simultaneously, the long rod forces the coordinated displacement of the two stabilization brackets, achieving dynamic load balancing and completely solving the problem of unilateral overload in traditional bumper beam offset collisions. The multi-stage energy absorption mechanism reduces the peak impact force transmitted to the vehicle's longitudinal beams, providing an enhanced protective barrier for critical components such as the trunk, fuel tank, or battery pack.

Description

Technical Field

[0001] This utility model belongs to the field of automotive anti-collision beam technology, specifically relating to a rear anti-collision beam balance and stabilization system based on hydraulic linkage. Background Technology

[0002] Traditional automotive rear impact beams primarily employ single-layer or multi-layer metal beam structures (such as steel or aluminum alloys), absorbing collision energy through their own plastic deformation. However, this design has significant drawbacks. For instance, in offset or corner collisions, the impact beam is prone to unilateral crumpling and torsion, leading to a sharp drop in energy absorption efficiency and preventing the collision force from being evenly transferred to the vehicle's longitudinal beams. Furthermore, the impact beam relies on the deformation of the metal beams to absorb energy, resulting in a low upper limit for energy absorption. Based on these issues, there is an urgent need for an innovative structure that can actively balance the loads on both sides, suppress the torsion of the impact beam, and improve energy absorption efficiency. Utility Model Content

[0003] The present invention aims to provide a hydraulically linked rear bumper beam balance and stabilization system to solve many technical problems existing in the current automotive rear bumper beams.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The hydraulically linked rear bumper beam balance and stabilization system includes: The anti-collision beam body is installed laterally on the longitudinal beam at the rear of the vehicle; The rear balance bracket system is installed below the anti-collision beam body. It includes a hydraulic rod, a long rod and two sets of rear vehicle stability brackets, which are symmetrically arranged on the left and right sides of the rear of the vehicle. The middle part of the rear stability bracket is mounted on the longitudinal beam at the rear of the vehicle by a hinge, and the rear stability bracket is fixedly connected to the anti-collision beam body by fasteners. The cylinder of the hydraulic rod is hinged to the left-side rear vehicle stabilizer bracket, the piston rod end of the hydraulic rod is connected to one end of a long rod, and the other end of the long rod is hinged to the right-side rear vehicle stabilizer bracket.

[0005] Furthermore, two through holes are provided at both ends of the anti-collision beam body, and the anti-collision beam body is fixed to the longitudinal beam at the rear of the vehicle by bolts inserted through the through holes.

[0006] Furthermore, the upper part of the anti-collision beam body is also provided with two ear plates, both of which are fixed to the longitudinal beam at the rear of the vehicle by bolts.

[0007] Furthermore, the rear stability bracket of the vehicle body includes a support component and a bottom support component. The top surface contour of the bottom support component is adapted to the bottom surface of the end of the anti-collision beam body. The end of the bottom support component extends upward to form a connecting wing. An elongated hole is provided on the connecting wing. The connecting wing is fixed to the end face of the anti-collision beam body by bolts set in the elongated hole. The support member has a hinge hole in the middle. The support member is hinged to the longitudinal beam at the rear of the vehicle by bolts passing through the hinge hole. One end of the support member is fixed to the bottom of the bottom support member.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses the linkage structure of the hydraulic rod and the long rod in the rear balance bracket system to drive the hydraulic rod to generate controllable damping force to efficiently absorb impact energy during a collision. At the same time, the long rod forces the coordinated displacement of the double-sided stabilizing brackets to achieve dynamic load balance distribution, completely solving the problem of unilateral overload in traditional anti-collision beam offset collisions. The rigid connection between the hinged bracket and the anti-collision beam forms an integral anti-torsional unit, which, combined with the lateral constraint force of the hydraulic rod, significantly suppresses the torsional deformation of the anti-collision beam. The multi-stage energy absorption mechanism reduces the peak impact force transmitted to the longitudinal beams of the vehicle body, providing an enhanced protective barrier for key components such as the trunk, fuel tank, or battery pack. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is an axonometric drawing of a rear anti-collision beam balance and stabilization system based on hydraulic linkage according to this utility model; Figure 2 This is an isometric view from another perspective of the hydraulically linked rear anti-collision beam balance and stabilization system of this utility model; Figure 3 This is a schematic diagram of the tail balance support system; Figure 4 This is a schematic diagram of the structure of the rear stabilizing bracket of the vehicle body. Detailed Implementation

[0010] 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.

[0011] The present invention will be further described in detail below with reference to the embodiments.

[0012] like Figure 1-3 The present invention provides a specific embodiment of a hydraulically linked rear anti-collision beam balance and stabilization system: The hydraulically linked rear bumper beam balance and stabilization system includes: The anti-collision beam body 1 is installed laterally on the longitudinal beam at the rear of the vehicle. It is responsible for absorbing impact energy during a collision and protecting the rear body and key components (such as the trunk, fuel tank / battery pack, etc.). The installation method is as follows: two through holes 2 are provided at both ends of the anti-collision beam body 1. The anti-collision beam body 1 is fixed to the longitudinal beam at the rear of the vehicle by bolts passing through the through holes 2. Two ear plates 3 are also provided on the upper part of the anti-collision beam body 1. Both ear plates 3 are fixed to the longitudinal beam at the rear of the vehicle by bolts.

[0013] The rear balance bracket system is installed below the anti-collision beam body 1. It includes a hydraulic rod 4, a long rod 5, and two sets of rear vehicle stability brackets 6. The two sets of rear vehicle stability brackets 6 are symmetrically arranged on the left and right sides of the rear of the vehicle. The middle part of the rear vehicle stability brackets 6 is mounted on the longitudinal beam at the rear of the vehicle by a hinge. The rear vehicle stability brackets 6 and the anti-collision beam body 1 are fixedly connected by fastening bolts to form a rigid connection structure, which makes the anti-collision beam body 1 and the rear vehicle stability brackets 6 a whole. The cylinder of the hydraulic rod 4 is hinged to the left rear vehicle stabilizer 6. The piston rod end of the hydraulic rod 4 is connected to one end of the long rod 5, and the other end of the long rod 5 is hinged to the right rear vehicle stabilizer 6. The hydraulic rod 4 is the core functional component of the system. It is filled with hydraulic oil and can provide controllable damping force when subjected to impact. The long rod 5 serves to connect the left and right rear vehicle stabilizers 6 and transmit force, transferring the force of the hydraulic rod 4 to the stabilizer on the other side.

[0014] like Figure 4 As shown, the rear stability bracket 6 of the vehicle body includes a support member 7 and a bottom support member 8. The top surface contour of the bottom support member 8 is adapted to the bottom surface of the end of the anti-collision beam body 1. The end of the bottom support member 8 extends upward to form a connecting wing 10. An elongated hole 9 is provided on the connecting wing 10. The connecting wing 10 is fixed to the end face of the anti-collision beam body 1 by bolts provided in the elongated hole 9. The support member 7 has a hinge hole 11 in the middle. The support member 7 is hinged to the longitudinal beam at the rear of the vehicle by a bolt passing through the hinge hole 11. One end of the support member 7 is welded to the bottom of the bottom support member 8.

[0015] When the rear of the vehicle is subjected to a frontal collision (rear-end collision), the impact force is transmitted through the anti-collision beam body 1 to the rear vehicle stabilizer brackets 6 on both sides. The rear vehicle stabilizer brackets 6 are installed by hinges. The rear vehicle stabilizer brackets 6 attempt to rotate backward / upward or downward. The movement of the rear vehicle stabilizer brackets 6 pulls or pushes the hydraulic rod 4. The piston inside the hydraulic rod 4 compresses the hydraulic oil, generating a strong damping force to absorb a large amount of impact energy (similar to the principle of a shock absorber). At the same time, through the connection of the long rod 5, the impact force attempts to be transmitted to the rear vehicle stabilizer bracket 6 on the opposite side, causing the rear vehicle stabilizer brackets 6 on both sides to work together to share the impact load and avoid unilateral overload.

[0016] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rear anti-collision beam balance and stabilization system based on hydraulic linkage, characterized in that, include: The anti-collision beam body is installed laterally on the longitudinal beam at the rear of the vehicle; The rear balance bracket system is installed below the anti-collision beam body. It includes a hydraulic rod, a long rod and two sets of rear vehicle stability brackets, which are symmetrically arranged on the left and right sides of the rear of the vehicle. The middle part of the rear stability bracket is mounted on the longitudinal beam at the rear of the vehicle by a hinge, and the rear stability bracket is fixedly connected to the anti-collision beam body by fasteners. The cylinder of the hydraulic rod is hinged to the left-side rear vehicle stabilizer bracket, the piston rod end of the hydraulic rod is connected to one end of a long rod, and the other end of the long rod is hinged to the right-side rear vehicle stabilizer bracket.

2. The rear anti-collision beam balance and stabilization system based on hydraulic linkage according to claim 1, characterized in that: The anti-collision beam has two through holes at both ends, and the anti-collision beam is fixed to the longitudinal beam at the rear of the vehicle by bolts inserted through the through holes.

3. The rear anti-collision beam balance and stabilization system based on hydraulic linkage according to claim 2, characterized in that: The upper part of the anti-collision beam is also equipped with two ear plates, both of which are fixed to the longitudinal beam at the rear of the vehicle by bolts.

4. The rear anti-collision beam balance and stabilization system based on hydraulic linkage according to claim 3, characterized in that: The rear stability bracket of the vehicle body includes a support component and a bottom support component. The top surface contour of the bottom support component is adapted to the bottom surface of the end of the anti-collision beam body. The end of the bottom support component extends upward to form a connecting wing. An elongated hole is provided on the connecting wing. The connecting wing is fixed to the end face of the anti-collision beam body by bolts set in the elongated hole. The support member has a hinge hole in the middle. The support member is hinged to the longitudinal beam at the rear of the vehicle by bolts passing through the hinge hole. One end of the support member is fixed to the bottom of the bottom support member.

Images