car seat back lock

Abstract

The invention discloses an automobile seat back lock. The automobile seat back lock comprises a lock shell and a cover plate. A lock leaf and an unlocking rocker arm are arranged in the lock shell, one end of the lock leaf is rotationally connected to the lock shell, the lock leaf is provided with a torsional spring which promotes the lock leaf to swing towards the locking direction, the lock leaf is provided with a hinge pin and a lock groove, one end of the unlocking rocker arm is rotationally connected to the lock shell, and the other end of the unlocking rocker arm is movably connected with the hinge pin. An installation plate is arranged on the lock shell, the installation plate and the lock shell are arranged in an L shape, an unlocking lever is rotationally connected to the installation plate, a guide hole is formed in the lock shell, one end of the unlocking lever penetrates through the guide hole and is movably connected with the third end of the unlocking rocker arm, and the other end of the unlocking lever is connected with a pull rope. According to the automobile seat back lock, the unlocking structure is arranged on one face of the lock and can be installed in a seat, and therefore occupied space is saved; the lever principle is adopted for the unlocking lever, and therefore the unlocking force moment is greatly reduced; in addition, the lock has the early-warning function.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to an automobile seat backrest lock. Background technique [0002] At present, the car seat backrest locks provided on the market generally include a lock case and a cover plate. The lock case is provided with a lock leaf and an opening rocker arm. One end of the lock leaf is rotatably connected to the lock case. Swing towards the locking direction, the lock leaf is provided with a pin shaft and a lock groove, one end of the opening rocker arm is rotatably connected to the lock housing, the other end of the opening rocker arm is movably connected with the pin shaft, and the third section of the opening rocker arm is connected with the cable , the above-mentioned car seat backrest lock opening structure is located on the side of the lock and installed outside the seat, which not only takes up space, but also requires a large opening torque when unlocking, which makes it more difficult for t...

AI Technical Summary

Problems solved by technology

[0002] At present, the car seat backrest locks provided on the market generally include a lock case and a cover plate. The lock case is provided with a lock leaf and an opening rocker arm. One end of the lock leaf is rotatably connected to the lock case. Swing towards the locking direction, the lock leaf is provided with a pin shaft and a lock groove, one end of the opening rocker arm is rotatably connected to the lock housing, the other end of the opening rocker arm is movably connected with the pin shaft, and the third section of the opening rocker arm is connected with the cable , the above-mentioned car seat backrest lock opening structure is located on the side of the lock and installed outside the seat, which not only takes up space, but also requires a large opening torque when unlocking, which makes it more difficult for the user to unlock. In addition, the above-mentioned The car seat back lock only has a single opening and locking function, and there is no obvious warning function. The user can only judge the status of the car seat back lock by repeated confirmation. Once the car seat is down and not locked , it is easy to cause safety accidents

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