Two-axis alternate flip structure

Abstract

The invention discloses a double-shaft alternate turnover structure. The structure is characterized in that a positioning plate set is used for positioning a first rotating shaft set, a second rotating shaft set and a first spiral gear, wherein the first rotating shaft set and the second rotating shaft set are parallel with each other, and the first spiral gear is in the staggered axial direction; the first rotating shaft set comprises a wheel body, a first mandrel and a first rotating part, wherein the axes of the wheel body, the first mandrel and the first rotating part are same, and the peripheral surface of the wheel body is provided with a first wheel missing part in the staggered axial direction; the second rotating shaft set comprises a second spiral gear, a second mandrel and a second rotating part, wherein the axes of the second spiral gear, the second mandrel and the second rotating part are same; the first spiral gear is meshed with the second spiral gear in the staggered axial direction; the peripheral surface of the first spiral gear is provided with a second wheel missing part, the axes of the second wheel missing part and the wheel body are same, and that the peripheral surface of the first spiral gear can pass through the second wheel missing part to be opposite to the first wheel missing part, so that the first spiral gear can rotate and a tooth-shaped structure of the first spiral gear can pass through the first wheel missing part; and the rotating angel of a first clamping part and the rotating angel of a second clamping part of each rotating part is limited by the first limiting part and the second limiting part on one side of the positioning plate set respectively, so that the first rotating shaft set and the second rotating shaft set can rotate alternately.

Description

technical field [0001] The invention relates to a double-shaft alternate turning structure, in particular to a foldable electronic device which can be opened and closed. Background technique [0002] A general foldable electronic device, such as a notebook computer, a tablet computer or a mobile phone, is mainly connected to the first board and the second board of the electronic device through a single-axis hinge or a double-axis hinge. Among them, the first board can be the upper cover for installing the display screen, the second board can be the base for installing components, batteries and keyboards, and the first board can be closed relative to the second board or by 0 degrees Flip to 360 degrees. [0003] Wherein, such as the "sequential locking pivot assembly" of Taiwan Patent Publication No. M470492, the supporting part has a first stopper and a second stopper. The first shaft and the second shaft are pivotally connected to the supporting part, the first shaft has ...

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide a double-shaft alternate turning structure, by arranging a helical gear in a staggered axial direction between the wheel body and another helical gear parallel to each other, and making the wheel body and the helical gear directly affect each other and There are respectively interlaced and axially arranged wheel gaps, which can improve the known alternate flip structure. The two spur gears and the two cams (rings with arc recesses) are respectively located on different radial planes, and the two meshing spur gears There is a gap between them, resulting in the situation that they cannot effectively rotate synchronously, and will increase the overall volume, increase the processing steps and time, etc., so it can be applied to thin and foldable electronic devices, so that the wheel body directly interacts with the helical gear Braking, so that the helical gear and another helical gear can act synchronously to reduce the occurrence of idling, thereby improving product quality, prolonging service life, effectively shortening the axial length, thereby reducing the overall volume, and reducing processes and components to reduce production costs

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