一种单手多姿态可调式睡篮折叠机构

Abstract

本实用新型公开了一种单手多姿态可调式睡篮折叠机构，包括睡篮插座、扶手座及转动限位于睡篮插座和扶手座之间的睡篮后关节和睡篮前关节，睡篮后关节和睡篮前关节的相对位置通过内置的转动限位组件进行调节；转动限位组件包括并列抵触设置的调节压簧、调节齿轮、传动轮、折叠齿轮、折叠压簧，在软丝拉动传动轮旋转的过程中，调节齿轮、传动轮及折叠齿轮沿轴向方向横向移动并实现对睡篮后关节和睡篮前关节在位置锁定和可相对旋转两种状态的来回切换，调节压簧和折叠压簧分别用于对调节齿轮和折叠齿轮进行轴向弹性支撑且调节压簧的弹力大于折叠压簧的弹力。该折叠机构单手即可完成操作，操作便捷，结构稳定可靠，能够充分保障睡篮的安全性。

Claims

1. A single-handed, multi-position adjustable folding basket mechanism, characterized in that: The device includes a bassinet socket, an armrest seat, and a rear bassinet joint and a front bassinet joint that are rotatably limited between the bassinet socket and the armrest seat. The relative positions of the rear bassinet joint and the front bassinet joint are adjusted by a built-in rotation limiting component. The rotation limiting assembly includes an adjusting spring, an adjusting gear, a transmission wheel, a folding gear, and a folding spring arranged in parallel and abutting each other. The transmission wheel is connected to a folding handle assembly installed in the middle of the rear tube of the bassinet via a flexible wire. During the process of the flexible wire pulling the transmission wheel to rotate, the adjusting gear, the transmission wheel, and the folding gear move laterally in the axial direction, realizing the switching between two states of position locking and relative rotation of the rear joint and the front joint of the bassinet. The adjusting spring and the folding spring are used to provide axial elastic support for the adjusting gear and the folding gear, respectively, and the elastic force of the adjusting spring is greater than that of the folding spring.

2. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 1, characterized in that: The rear joint of the bassinet has a circular array of guide teeth with bevels, and the drive wheel has a spiral groove that works in conjunction with the guide teeth. When the soft wire pulls the drive wheel to rotate, the rear joint of the bassinet squeezes the drive wheel and the adjusting gear to move laterally toward the bassinet socket, and the folding gear moves laterally toward the bassinet socket in sync with the folding spring.

3. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 2, characterized in that: The outer ring of the transmission wheel is provided with a limiting tooth, and the rear joint of the cradle is provided with an arc-shaped limiting groove that cooperates with the limiting tooth.

4. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 1, characterized in that: The inner side of the bassinet socket is provided with a positioning groove 1 that engages with the serrations of the adjusting gear. The rear joint of the bassinet is provided with positioning grooves 2 and 3 that engage with the serrations of the adjusting gear and the folding gear. Positioning grooves 1 and 2 are provided in a one-to-one correspondence to limit the position of the adjusting gear. The front joint of the bassinet is provided with a positioning groove 4 that engages with the serrations of the folding gear.

5. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 4, characterized in that: The serrations on each of the adjusting gears correspond to three adjacent positioning slots one and three positioning slots two. The positions of the serrations on the three adjacent positioning slots one and two correspond to the three postures of the sleeping basket: lying flat, half-lying, and sitting upright.

6. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 4, characterized in that: The inner side of the bassinet socket is fixed to a variable diameter shaft. The adjusting gear and the transmission wheel slide along the major diameter axis of the variable diameter shaft, and the folding gear slides along the minor diameter axis of the variable diameter shaft. The side of the major diameter shaft is provided with an outer arc-shaped boss and an inner arc-shaped boss, both with one end being inclined. The folding gear is provided with an outer arc-shaped boss and an inner arc-shaped boss, both with one end being inclined, on the side of the variable diameter shaft opposite to the outer arc-shaped boss and the inner arc-shaped boss, which slide in cooperation with the outer arc-shaped boss and the inner arc-shaped boss.

7. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 4, characterized in that: The inner side of the bassinet socket is provided with an arc-shaped limiting groove two around the outer ring of the positioning groove one. The bottom of the front joint of the bassinet is provided with a protruding block. During the rotation of the front joint of the bassinet, the protruding block slides along the arc-shaped limiting groove two and is limited by both ends of the arc-shaped limiting groove two.

8. The single-handed, multi-posture adjustable folding basket mechanism according to claim 1, characterized in that: The sides of the adjusting gear and the folding gear are respectively provided with a limiting groove one and a limiting groove two for radially limiting the adjusting spring and the folding spring.

9. The single-handed multi-attitude adjustable sleeping-bassinet folding mechanism according to claim 1, characterized in that: The bassinet socket is connected to the frame body by a snap-fit ​​connection.

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