Seat frame anti-diving device

Abstract

The invention discloses a seat frame anti-diving device which comprises a cushion base, a cushion framework and a cushion front end lifting mechanism and further comprises an anti-diving mechanism and an inhaul cable mechanism, and the anti-diving mechanism comprises anti-diving rod supports arranged on the two sides of the cushion base in a bilateral symmetry mode and anti-diving rods rotationally installed on the anti-diving rod supports; the rear end of an inhaul cable core of the inhaul cable mechanism is connected with the cushion front end lifting mechanism, the front end of the inhaul cable core of the inhaul cable mechanism is divided into two parts to be connected with the anti-diving rods on the two sides, a notch is formed in the lower portion of the cushion framework, when the cushion front end lifting mechanism drives the front end of the cushion to rise gradually, the inhaul cable mechanism can be linked to enable the anti-diving rods to rotate and rise gradually, and when a vehicle collides forwards, the anti-diving rods can be driven by the notch. The front end of the cushion framework sinks, the top end of the rising anti-diving rod can be clamped into the notch so as to support the cushion framework, and the cushion has the advantages of being high in stability, capable of achieving linkage cooperation of the cushion angle adjusting function and the anti-diving function, ingenious in design and capable of meeting the requirements for sitting comfort and safety of the cushion at the same time.

Description

technical field [0001] The invention relates to the technical field of railway freight car side plate cutting, in particular to a seat frame anti-submersion device. Background technique [0002] Now car seats, especially the main driver's seat, in order to facilitate passengers to adjust the height of the seat cushion according to their height, usually adopt a multi-link mechanism to adjust the position of the seat cushion up and down. However, when the car has a forward collision, such as sudden braking, when the vehicle is driving at high speed, or when the front end of the vehicle suddenly hits a hard object, etc., the linkage mechanism is prone to instability. The chair produces a huge impact force, and the connecting rod mechanism will basically be crushed. Therefore, although the use of multi-links is convenient for adjusting the up and down positions of the seat cushion, there is also a great safety hazard of instability. Contents of the invention [0003] The inve...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide an anti-submersion device for a seat frame, which has strong stability and high safety, and solves the problem that the multi-link mechanism of the seat cushion is unstable and crushed due to the collision of the front end of the vehicle, and there are great potential safety hazards

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