Impact reverse retraction folding unlocking mechanism of stroller

Abstract

The invention discloses an impact reverse retraction folding unlocking mechanism of a stroller, which is characterized in that a first-stage sliding block, a second-stage sliding block, a rotating rodand a retraction pin are sequentially arranged in an upper support pipe and located below a U-shaped impact rod from top to bottom, and a push rod is machined at the bottom end of the first-stage sliding block; a limiting groove is machined in the position, corresponding to the pushing rod, of the top of the second-stage sliding block, the pushing rod is also machined at the bottom end of the second-stage sliding block, the bottom end of the pushing rod on the second-stage sliding block is right aligned with one end of the rotating rod, a locking disc is fixed to the joint, a locking groove is formed in the locking disc, and the bottom of the retraction pin is clamped into the locking groove in the locking state. The situation that unlocking cannot be achieved due to deviation generated by the acting force of the U-shaped impact rod in the impact process can be effectively avoided, and the situation that the rotating rod deflects due to careless external force when folding is not needed can also be avoided.

Description

technical field [0001] The invention relates to a reverse retraction folding unlocking mechanism of a children's stroller, which belongs to the technical field of children's carriages. Background technique [0002] In the prior art, most of the frames of children's strollers are designed in a collapsible and foldable structure to meet the requirements of portability and storage without occupying space. CN2014106981237 discloses a fast-folding baby carriage frame, which was applied by the applicant in 2014. This kind of frame is easy to unfold and fold, and the unlocking mechanism of the folded part is composed of a U-shaped striking rod, a rotating rod, and a connecting rod. Composed of steel wires, fixed hooks, etc., the rotating rod is directly fixed under the U-shaped striking rod, and the rotating rod is hit by the striking rod. The rotation of the rotating rod pulls the fixed hook, so that the fixed hook is detached from the rear bracket, so as to realize the unlocking ...

AI Technical Summary

Problems solved by technology

The unlocking mechanism of this structure, because of the use of connecting wire ropes, is prone to failure after multiple impacts, and in the process of use, when it does not need to be folded, it is easy to unlock the locking part due to external force, resulting in wrong unlocking, or The force of the U-shaped impact lever deviates during impact, resulting in the inability to unlock

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