A hinge structure comprises a fixed blade, a gland, a movable blade, a ratchet wheel, a pawl and an elastic piece, the ratchet wheel, the pawl and the elastic piece are arranged in a containing cavity of the fixed blade, the containing cavity is provided with a limiting end face, gear teeth meshed with each other are arranged on the ratchet wheel and the pawl, and the movement track of the pawl is limited through at least two first limiting shafts and first limiting through grooves additionally formed in the pawl and the containing cavity respectively. The elastic piece acts on the pawl, the gland is fixedly connected to the containing cavity, the movable blade is in linkage with the ratchet wheel through a pin shaft, the pin shaft and the ratchet wheel are coaxially arranged, and the movable blade is rotatably arranged on the gland around the central axis of the pin shaft. When the end face of the side, opposite to the second gear teeth, of the pawl is tightly attached to the limiting end face and the ratchet wheel and the pawl are meshed with each other, the ratchet wheel and the pawl jointly form self-locking, then the movable blade forms self-locking, and unlocking can be completed only by rotating the movable blade in the forward direction. After the external force is released, the movable blades are self-locked again; therefore, the movable blades rotate intermittently in one direction.
一种铰链结构,包括固定叶片、压盖、活动叶片、设置在固定叶片容置腔内的棘轮、棘爪和弹片,容置腔具有限位端面,棘轮和棘爪上设有相互啮合的轮齿,通过棘爪和容置腔各增设的至少两个第一限位轴和第一限位通槽,以限制棘爪的运动轨迹,弹片作用于棘爪,压盖固接在容置腔上,活动叶片通过销轴与棘轮连动设置,销轴与棘轮同轴设置,活动叶片绕销轴的中心轴线可旋转地设置在压盖上;在棘爪相背于第二轮齿的一侧端面紧贴着限位端面、并且棘轮和棘爪相互啮合时,棘轮和棘爪共同形成自锁,继而使活动叶片形成自锁,并且只有正向旋转活动叶片才能完成解锁;而且在外力释放后,活动叶片重新形成自锁;因此活动叶片作单向间歇转动。
Hinge structure and vehicle-mounted display
一种铰链结构及车载显示器
2022-09-30
Patent
Electronic Resource
Chinese
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