Military vehicle seat buffer partition device and buffer partition method

Abstract

The invention belongs to the field of vehicle explosion prevention, and particularly relates to a military vehicle seat buffer partition device and a buffer partition method. The device is arranged onthe back or a side surface of a seat framework, and comprises a fixing mechanism, a starting mechanism, and a buffer mechanism. The fixing mechanism comprises an upper fixing single head and a lowerfixing single head and is used for realizing connection between the buffer partition device and a seat; the starting mechanism is used for preventing false triggering of the buffer partition device and starting of a buffer energy absorption process; the buffer mechanism is used for buffering and isolating impact energy in an explosion process; and an inner pipe, an outer pipe and a plate-shaped serpentine spring arranged between the inner pipe and the outer pipe are included, the lower end of the serpentine spring is connected with the lower fixing single head, the lower fixing single head isconnected with the inner pipe, the upper fixing single head is connected with the outer pipe, and the upper end of the serpentine spring can move for a certain distance relative to the outer pipe. According to the seat buffer partition device, isolation of impact energy from the seat to a passenger is achieved through plastic deformation of the serpentine spring after the seat is impacted, and seat protection performance is effectively improved.

Description

technical field [0001] The invention belongs to the field of vehicle explosion protection, and in particular relates to a military vehicle seat buffer partition device and a buffer partition method. Background technique [0002] Ground mines and Improvised Explosive Devices (IEDs) are a huge threat to military vehicles, and vehicle bottom protection technology and seat protection technology are important means to reduce occupant injuries. As the last line of defense for occupant protection, the lightning protection seat needs to buffer and attenuate the energy generated by the explosion impact transmitted to the seat installation point. Therefore, the design of the lightning protection seat buffer partition device is the key to protect the safety of the occupants. It can use the effective space to link the impact strength of the occupants, and control the peak value and time of the impact on the occupants within a reasonable range. [0003] In the face of the above situatio...

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Problems solved by technology

[0003] In the face of the above situation, foreign countries have introduced lightning-proof seats equipped with different forms of buffer devices. For example, the Blasttesh series explosion-proof seats of Jianke Company adopt a metal belt-type buffer structure. Through the elastic-plastic deformation of the metal belt and the friction between the pin and the metal belt To absorb energy, but the metal belt is easy to break when the material is unreliable, and false start may occur in daily driving conditions; the British Creation company has developed a lightning protection seat with a spring shock absorber and a rubber buffer Chairs use elastic deformation of springs and rubber to absorb energy, but they are only suitable for low-speed impacts below 100g, and the effect is not ideal under high-frequency and high-speed impacts; Magneto-rheological fluid becomes a viscoelastic solid in a magnetic field environment to buffer and absorb energy, but the cost is high, and there may be liquid leakage in an explosive environment

[0004] In summary, the existing seat cushioning devices have problems such as complex structure, unstable operation, and unsatisfactory high-speed impact cushioning effect.

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