Intelligent pre-tightening locking device for safety belt and using method of intelligent pre-tightening locking device
A technology for locking devices and seat belts, which is applied in the direction of seat belts in vehicles, pedestrian/occupant safety arrangements, belt tighteners, etc., and can solve the problem of low intelligence, rewinding and expected effects of deflagration-type pre-tightening seat belts Unsatisfactory, high use and maintenance costs, etc., to achieve the effect of improving the level of intelligence, adding pre-tightening locking mechanisms, and low cost
Pending Publication Date: 2021-07-23
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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Problems solved by technology
Therefore, the deflagration type pretensioning seat belt still has the disadvantages of low intelligence, complex structure, unsatisfactory rewinding and expected effect, high use and maintenance costs, and poor reliability.
Method used
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[0036] A safety belt intelligent pre-tightening locking device, such as figure 1 , figure 2 and image 3 shown. Including the following components: pre-tightening motor 1, secondary transmission gear 2, geared worm 3, driving gear 4, driving gear hub 5, driving claw 6 installed in the hub groove 13, electromagnetic coil 7, input internal gear 8 , Take-up shaft 9, take-up shaft bearing 10, housing 11, seat belt 12, hub groove 13, conventional retraction lock shaft 14, return spring 15 and spring seat 16.
[0037] The driving gear of the seat belt intelligent pre-tightening locking device and its transmission structure of the seat belt retracting shaft are as follows: figure 2shown. The drive gear 4 and the drive gear hub 5 are of an integrated structure, the drive gear hub 5 is designed as a convex structure, and there are four hub grooves 13 evenly distributed along the circumference of the drive gear hub 5, and the spring seat 16 of the locking mechanism is installed in...
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The invention discloses an intelligent pre-tightening locking device for a safety belt and a use method of the intelligent pre-tightening locking device. The intelligent pre-tightening locking device comprises a power input mechanism, a driving mechanism and a rolling-up mechanism; the device can ensure that the safety belt can stretch out and draw back freely like a common safety belt when a vehicle is not in danger, once the vehicle is judged to be in danger or has the possibility of danger, a control unit of the safety belt mechanism sends out a pre-tightening signal, an early warning signal and a locking signal, and the safety belt can be rolled back and tightened in the reverse direction at the moment, the slack amount between the passenger and the safety belt is reduced; and meanwhile, the pulling function of the safety belt is locked through the electric control locking mechanism, and the situation that the loosening amount is increased due to the fact that the safety belt is pulled out due to forward-rushing inertia of the body of the passenger is avoided. When the speed reduction degree of the vehicle is too large, secondary collision between the passengers and hard objects in the vehicle due to the safety slack amount and gaps or extremely dangerous conditions caused by throwing the passengers out of a safety belt or even throwing the passengers out of the vehicle are prevented, so that the safety protection capability on the passengers is improved.
Description
technical field [0001] The invention belongs to the technical field of automobile engineering, and in particular relates to a safety belt intelligent pre-tightening locking device and a using method thereof. Background technique [0002] The car seat belt can restrain the driver and occupant on the seat when the car collides, rolls, flicks or other dangerous conditions, preventing the person from being thrown out of the car or having a secondary collision with other hard objects in the car, thereby Playing the role of restraint protection, the seat belt is an indispensable restraint device for automobiles. [0003] Ordinary car seat belt mechanism can restrain people when the vehicle has a severe deceleration caused by an emergency collision, but the reliability of the function is not high. Therefore, it is necessary for the seat belt to restrain the occupant on the seat within 0.1 second. However, due to the insufficient structure of the seat belt of ordinary cars, there i...
Claims
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IPC IPC(8): B60R22/46B60R21/01
CPCB60R21/01B60R22/46B60R2021/01027B60R2022/4666
Inventor 闫光辉郑永贤刘霞张帆
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE