The invention belongs to the technical field of automobile safety, and particularly relates to a compact automobile safety belt tightening device which comprises a safety belt, a safety belt inserting buckle, a safety belt inserting opening, a piston connecting rod piece, an air cylinder body, an air cylinder end cover, an ignition device and explosives. The outer contour of the piston part of the piston connecting rod piece is composed of a locking face, a radial impact face, an axial impact face, a guide face, a tensioning face and a lower end face. A combustion cavity is formed by the radial impact face, the axial impact face and the inner cavity face of the air cylinder body. An ignition device and explosives are arranged in the combustion cavity, and the ignition device is electrically connected with an automobile control unit; a working cavity is formed by the tensioning face, the lower end face, the inner cavity face of the air cylinder body and the inner conical face of the air cylinder end cover. When an automobile encounters serious collision or rollover, the safety belt is further tensioned by instantly and downwards pulling the safety belt insertion opening, a driver or a passenger is tightly attached to a seat backrest so as to improve the safety of personnel in the automobile, and meanwhile the device is compact in structure and convenient to produce in a quantized mode and apply universally.
本发明属于汽车安全技术领域,具体涉及一种紧凑型汽车安全带束紧装置,包括安全带、安全带插扣、安全带插口、活塞连杆件、气缸体、气缸端盖、发火装置和炸药;活塞连杆件活塞部分的外部轮廓由锁止面、径向冲击面、轴向冲击面、导向面、张紧面、下端面构成,径向冲击面、轴向冲击面与气缸体内腔面形成有燃烧腔;燃烧腔内设有发火装置和炸药,发火装置与汽车控制单元电连接;张紧面、下端面、气缸体的内腔面、气缸端盖的内锥面形成有工作腔。本发明在汽车遭遇严重碰撞或侧翻事时通过瞬时向下拉拽安全带插口,进一步张紧安全带,将驾驶员或乘客紧紧贴附到座椅靠背上以提高车内人员的安全,同时该装置结构紧凑,便于量化生产和普遍应用。
Compact automobile safety belt tightening device
一种紧凑型汽车安全带束紧装置
2023-06-27
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |