The invention relates to a pre-tightening force type retractor capable of reducing temperature and eradicating open fire. The retractor comprises a gas generator, a bent pipe, a driving ball assembly,a sealing body and a pre-tightening wheel. A flame extinguishing agent is arranged in the sealing body and the bent pipe of the gas generator; and when the flame extinguishing agent is in contact with combustible gas provided by the gas generator, the flame extinguishing agent is vaporized to reduce the temperature of the combustible gas and dilute the concentration of the combustible gas. The retractor has the advantages that open fire is prevented from appearing in the retractor in a temperature reduction mode, the application is wide, and the retractor can be applied to all gunpowder typepre-tightening force-limiting safety belts without limitation in structure; the cost is low, the cost of a single piece is about 0.01 yuan, while the cost of a duplex ball in a traditional scheme is about 0.5 yuan; the open fire avoiding effect is good, and open fire at the positions of a pipe opening, a safety hole, an air leakage hole and a pipeline outlet can be avoided.
本发明涉及一种降低温度杜绝明火的预紧力式卷收器,所述的卷收器包括气体发生器、弯管、驱动球组件、密封体、预紧轮;所述的密封体与气体发生器的弯管中设置有灭焰剂,该灭焰剂与气体发生器提供的可燃性气体接触时汽化降低可燃性气体的温度并稀释可燃性气体的浓度。其优点表现在:通过降低温度的形式来防止卷收器出现明火,应用广泛,可以应用于所有火药式预紧限力式安全带中,不限结构;成本低,单件成本约0.01元,而传统方案的双连球的成本约为0.5元;明火规避效果优良,能够在管口、安全孔、泄气孔以及管道出口位置处的明火均可规避。
Pre-tightening force type retractor capable of reducing temperature and eradicating open fire
一种降低温度杜绝明火的预紧力式卷收器
2020-05-22
Patent
Elektronische Ressource
Chinesisch
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