Two-level unlocking device for child safety seat

Abstract

The invention discloses a two-level unlocking device for a child safety seat. The two-level unlocking device includes a hollow tube, a button shell cover, a first button and a second button. The firstbutton and the second button are connected through a spring. One end of the first button extends out of the opening end of the side, close to an ISOFIX connector, of the button shell cover. One end of the second button extends out of the opening end of the other side of the button shell cover. Two elastic locking columns are arranged in the button shell cover and located on the rear side of the first button. A penetrating hole used for allowing the first button and the second button to move left and right is formed in the outer side wall of the hollow tube. The lower part of the first buttonextends into the hollow tube through the penetrating hole and is fixedly connected with the tail end of a connecting rod of the ISOFIX connector. A blocking block is arranged at the position, close toone ends of the elastic locking columns, of the first button. The two elastic locking columns abut against the rear side of the blocking block. Meanwhile, an unlocking inserting part is arranged at the position, close to one ends of the elastic locking columns, of the second button. Unlocking bevels which correspond to the elastic locking columns one by one are arranged at the upper end and the lower end of the head part of the unlocking inserting part correspondingly. The two-level unlocking device for the child safety seat has the advantage that misoperation in the unlocking process is reduced.

Description

technical field [0001] The invention belongs to the technical field of child safety seats, and in particular relates to a secondary unlocking device for a child safety seat. Background technique [0002] The full name of FIX is "International Standards Organization FIX", which means in Chinese: International Organization for Standardization Fixtures. It is a standard for installing child seats in cars, which is being accepted by many car manufacturers, and its role is to make the installation of child seats quick and easy. The ISOFIX international standard was promulgated in 1999, and European and American countries soon introduced similar laws and regulations. [0003] The existing ISOFIX connector is used to install and connect the child car seat to the ISOFIX interface of the car seat, such as patent number: 201510343682.0. When the lock hook is in the open state, the ISOFIX connector is aligned with the ISOFIX interface to access, and the lock hook is affected. The for...

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Problems solved by technology

[0004] However, the above-mentioned ISOFIX connector has a disadvantage, that is, if misoperation will cause the ISOFIX connector and the ISOFIX interface to be unlocked, it will easily cause the child car seat and the car seat to separate from each other, and there are certain safety hazards

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