Seat mechanical lock with restoring force

Abstract

The invention relates to a seat mechanical lock with a restoring force. The seat mechanical lock comprises a lock frame, a sleeve, a lock shaft, a piston, a first spring, a second spring, a compaction mechanism and a pull rope, wherein a transverse through hole and a vertical through hole, which are vertical to each other, are formed in the lock frame; one end of the sleeve is fixed on the lock frame and a through hole in the sleeve is communicated with the vertical through hole; the piston is arranged in the transverse through hole; a through hole is formed in the side face of the piston; the lock shaft is matched with the vertical through hole and penetrates through the through hole in the piston; the compaction mechanism is arranged on the left side of the piston and the first spring is arranged on the right side of the piston; the pull rope is connected with the compaction mechanism and can be used for controlling the compaction mechanism to rightwards push the piston; the second spring sleeves the lock shaft; the lower end of the second spring is fixedly connected with the top of the lock frame and the upper end of the second spring is fixedly connected with the top of the lock shaft. By the aid of the seat mechanical lock with the restoring force, a backrest can be locked and unlocked and the seat mechanical lock can be stressed in two directions and can provide the restoring force in an application process; the seat mechanical lock is light and reliable and is convenient to operate.

Description

technical field [0001] The invention relates to a mechanical lock, in particular to a seat mechanical lock with restoring force. Background technique [0002] In order to meet the comfort effect and other special purposes, people need the backrest of the seat to have the function of angle adjustment. At present, most of the mechanisms for unlocking and locking the angle adjustment of the backrest are hydraulic locks and recliners. Although these two products The technology is relatively mature, but it also has obvious disadvantages: the locking direction of the hydraulic lock is one-way, and it can only bear pressure but not tension. Seats using hydraulic locks, such as aircraft passenger seats, are limited by the force characteristics of hydraulic locks. Seat belts with shoulder straps cannot be installed, so the hydraulic lock structure cannot be used on seats such as aircraft pilot seats that must be equipped with seat belts with shoulder straps; although the recliner can...

AI Technical Summary

Problems solved by technology

[0002] In order to meet the comfort effect and other special purposes, people need the backrest of the seat to have the function of angle adjustment. At present, most of the mechanisms for unlocking and locking the angle adjustment of the backrest are hydraulic locks and recliners. Although these two products The technology is relatively mature, but it also has obvious disadvantages: the locking direction of the hydraulic lock is one-way, and it can only bear pressure but not tension. Seats using hydraulic locks, such as aircraft passenger seats, are limited by the force characteristics of hydraulic locks. Seat belts with shoulder straps cannot be installed, so the hydraulic lock structure cannot be used on seats such as aircraft pilot seats that must be equipped with seat belts with shoulder straps; although the recliner can bear force in both directions, it can be used to adjust the backrest angle It is time-consuming and labor-intensive to turn the control handle constantly, and it is inconvenient, and the volume and weight of the recliner are relatively large

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