Synchronous-rotation double-covered type pivot device

Abstract

The invention discloses a synchronous-rotation double-covered type pivot device. An upper fixed bracket and a lower fixed bracket are fixedly mounted at one end of a first shaft and one end of a second shaft respectively. A first penetrating hole and a second penetrating hole are formed in the two ends of a positioning frame separately. The first shaft and the second shaft penetrate in the first penetrating hole and the second penetrating hole respectively in parallel. Synchronous rotation of the first shaft and the second shaft is realized through a gear transmission mechanism. One end of a first covered type torsion part and one end of a second covered type torsion part are fixedly connected with the positioning frame. The outer side of the other end of the first shaft and the outer side of the other end of the second shaft are sleeved with the first covered type torsion part and the second covered type torsion part respectively. The first covered type torsion part and the second covered type torsion part can elastically stretch out and draw back in the radial direction. The inner sidewall of the first covered type torsion part and the inner sidewall of the second covered type torsion part can generate rotation interference with the circumferential outer sidewall of the first shaft and the circumferential outer sidewall of the second shaft all the time. A first stop part and a second stop part are fixedly installed at the other end of the first shaft and the other end of the second shaft respectively and abut against the other end of the first covered type torsion part and the other end of the second covered type torsion part respectively. The extension length of a pivot device shell is effectively reduced, and the synchronous-rotation double-covered type pivot device is suitable for notebook computers and other electronic equipment adopting appearance space shrinkage design.

Description

technical field [0001] The invention relates to a pivot device structure for realizing the rotation of a display screen, in particular to a double-covered pivot device capable of simultaneous movement. Background technique [0002] Mobile electronic devices such as notebook computers are basically composed of a display screen cover and a host system end that can be opened or closed relative to each other. The components used to make the display screen cover and the host system end open and close are mainly installed on the The pivot between the display screen lid and the end of the host system. The structure of the existing two-axis pivot device mainly has a first rotating shaft that rotates with the display screen of the upper cover, and a second rotating shaft that rotates with the host system end. [0003] In the existing double-axis pivot device, there are usually fixed frame area, power switching area and torque area arranged in sequence, so that the fixed frame area c...

AI Technical Summary

Problems solved by technology

[0004] Since the above-mentioned power switching area and torsion area will extend a relatively long axial length, a relatively long pivot housing will be used, but in the continuous evolution of mobile electronic devices such as notebook computers, sometimes the appearance The shortened design of the space makes the above-mentioned large-length pivot housing unsuitable for mobile electronic devices such as notebook computers with a shortened appearance and space design

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