Rear anticollision energy absorber for special vehicle

Abstract

The invention provides a rear anticollision energy absorber for a special vehicle. The rear anticollision energy absorber comprises an outer cover, a first energy absorption level and a second energy absorption level. The first energy absorption level comprises a buffer cover with a wrinkled part, an installation plate and a bearing plane which is used for abutting against the outer cover. The installation plate is arranged on the buffer cover and is used for being connected with a lower layer buffer support structure of the second energy absorption level. The second energy absorption level comprises an upper layer buffer support structure, a middle layer buffer support structure, a lower layer buffer support structure and support separation plates, and the space between every two adjacent support structures is provided with the corresponding support separation plate. The outer cover is provided with a vehicle body connection plate used for being connected with the tail of a vehicle body, and a reinforcer is arranged between the vehicle body connection plate and the outer cover. The energy absorption buffer can be fixed to the tail of the vehicle firmly, and the condition that the vehicle body connection plate and the outer cover are separated when collision occurs, and the buffer energy absorption effect is influenced is avoided. During collision, the first energy absorption level achieves a buffer energy absorption effect first, the second energy absorption level and the first energy absorption level are matched to jointly absorb and buffer collision impact force energy, and safety of the vehicle is protected effectively.

Description

technical field [0001] The invention belongs to the technical field of vehicle anti-collision, and in particular relates to a special vehicle rear anti-collision energy-absorbing device. Background technique [0002] At present, the number of dangerous chemical transport vehicles in my country is about 300,000. Due to some objective reasons, rear-end collision accidents occur frequently. When a collision accident occurs, the passive safety device on the car becomes the last line of defense to protect the safety of the occupants. The collision buffer and energy-absorbing structure is an important passive safety device, especially for some large hazardous chemical transport vehicles, once the storage tank containing hazardous chemicals is damaged, it is easy to cause secondary disasters, ranging from polluting the environment to seriously It will cause serious personal injury and death accidents. The buffer energy-absorbing structure equipped with the existing hazardous chemi...

AI Technical Summary

Problems solved by technology

The collision buffer and energy-absorbing structure is an important passive safety device, especially for some large hazardous chemical transport vehicles, once the storage tank containing hazardous chemicals is damaged, it is easy to cause secondary disasters, ranging from polluting the environment to seriously It will cause serious personal injury and death accidents. The buffer energy-absorbing structure equipped with the existing hazardous chemical vehicles is relatively backward, usually large in size, poor in structural stability, unsatisfactory in buffer energy-absorbing effect, and the strength of the collision buffer energy-absorbing structure is too large or too small , will affect the energy absorption effect during the collision process, and the protective performance will be greatly reduced

At the same time, after the existing collision buffer and energy-absorbing equipment is installed at the rear of the vehicle, it will greatly increase the turning radius of the vehicle and cause driving difficulties. Tank protection needs improvement

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