CN112817377A - Double-screen folding hinge and double-screen intelligent terminal thereof - Google Patents

The invention discloses a double-screen folding hinge and a double-screen intelligent terminal thereof. The folding rotating shaft mechanism comprises an active torsion component and a torsion synchronous component; the active torsion assembly comprises a torsion chute seat, a first torsion slide block and a second torsion slide block; the torsion synchronous assembly is respectively connected with the first torsion sliding block and the second torsion sliding block to enable the first torsion sliding block and the second torsion sliding block to rotate synchronously; the single-shaft mechanism comprises a shaft center rotating shaft, a rotating support and a fixed seat. The double-screen folding hinge can be applied to an up-and-down expansion type double-screen intelligent terminal, is good in convenience and good in opening and closing torque stability, the first display screen and the second display screen are good in cooperativity, screen bruising is not prone to occurring, and the using effect is good.

Double-screen folding hinge and double-screen intelligent terminal thereof

Technical Field

The invention relates to the field of hinges, in particular to a double-screen folding hinge and a double-screen intelligent terminal thereof.

Background

The traditional single-display-screen notebook or intelligent terminal is limited by a display window and the like, so that the requirements of users cannot be met, different application programs can be operated in two displays by the aid of the double-display-screen notebook or intelligent terminal, multi-task display is realized, the computing capacity and the display effect of the double-display-screen notebook or intelligent terminal are greatly improved, and the defect that the program window is repeatedly switched in one display is overcome. The double-display-screen notebook or the intelligent terminal expands the display capacity, improves the working efficiency and has wider and wider application range.

The existing double-screen notebook or intelligent terminal has the following defects: firstly, the main screen and the auxiliary screen in the existing double-screen notebook or intelligent terminal are mostly in a left-right expansion type, and the requirement of the up-down expansion type of the main screen and the auxiliary screen cannot be met; and secondly, although the main screen and the auxiliary screen in a small number of existing double-screen notebooks or intelligent terminals adopt an up-down expansion mode, the double screens of the notebooks or the intelligent terminals are poor in rotating torque stability and poor in double-screen cooperation during expansion and retraction, and screen bruising is easy to occur during expansion or retraction of the double screens.

Disclosure of Invention

In order to solve the technical problems, the invention provides a double-screen folding hinge and a double-screen intelligent terminal thereof, and the hinge structure is optimized and improved, so that the problems that the existing double-screen notebook or intelligent terminal cannot be unfolded up and down, the torsion stability is poor, the double-screen cooperation is poor, and the screen is easy to be damaged in the use process are solved.

In order to achieve the purpose, the technical scheme of the invention is as follows: a double-screen folding hinge comprises

A folding rotating shaft mechanism; the folding rotating shaft mechanism comprises an active torsion component and a torsion synchronous component; the active torsion assembly comprises a torsion chute seat, a first torsion slide block and a second torsion slide block; the torsion chute seat is provided with two semicircular chutes; a convex arc-shaped sliding rail is arranged on the side wall of the sliding chute; the first torsion slide block and the second torsion slide block are respectively arranged in the two sliding grooves; the first torsion sliding block and the second torsion sliding block are movably clamped on the sliding rail and move along the sliding rail; the side wall of the sliding groove is in interference fit with the first torsion slide block and the second torsion slide block; the torsion synchronous assembly is respectively connected with the first torsion sliding block and the second torsion sliding block, so that the first torsion sliding block and the second torsion sliding block rotate synchronously;

and a single axis mechanism; the single-shaft mechanism comprises a shaft center rotating shaft, a rotating bracket and a fixed seat; the rotating bracket is sleeved on the axis rotating shaft and rotates synchronously with the axis rotating shaft; the fixed seat is movably sleeved on the axis rotating shaft and rotates relative to the axis rotating shaft; the joint of the axis rotating shaft and the fixed seat is of a waist-shaped shaft structure; the fixing seat is provided with a waist-shaped hole matched with the axis rotating shaft.

As a preferred scheme of the present invention, the torque force synchronizing assembly includes a synchronizing connector, a synchronizing shaft, a synchronizing gear and a transmission gear; the two synchronous rotating shafts are symmetrically arranged on two sides of the torsion synchronous assembly; the two synchronous rotating shafts are respectively positioned on the axes of the two slide rails, and one end of the synchronous connecting piece is sleeved on the synchronous rotating shafts and rotates synchronously with the synchronous rotating shafts; the other ends of the two synchronous connecting pieces are respectively fixed with the first torsion slide block and the second torsion slide block; a synchronous gear is sleeved on the synchronous rotating shaft and rotates synchronously with the synchronous rotating shaft; two transmission gears are arranged between the two synchronous gears, and the synchronous gear, the transmission gear, the other transmission gear and the other synchronous gear are sequentially meshed and connected to synchronously rotate.

As a preferred scheme of the present invention, a rotation positioning hole is arranged on the torsion chute seat; the synchronous rotating shaft is movably inserted in the rotating positioning hole.

As a preferred scheme of the present invention, the torsion synchronization assembly includes a disc spring, a concave-convex wheel and a concave-convex connection piece; the concave-convex connecting sheet is sleeved on the two synchronous rotating shafts; each synchronous rotating shaft is sleeved with the disc spring and the concave-convex wheel; the concave-convex wheel is in mutual contact with the concave-convex connecting sheet, and the contact end surfaces of the concave-convex wheel and the concave-convex connecting sheet are provided with arc-shaped convex parts and arc-shaped grooves which are matched with each other; the disc spring enables elastic pressure to be formed between the contact end faces of the concave cam and the concave-convex connecting sheet.

As a preferred scheme of the invention, the folding rotating shaft mechanism is also provided with a limiting supporting shaft; the limiting support shaft is of a hollow semicircular shaft-shaped structure; the limiting support shaft is fixed with the torsion chute seat.

As a preferable scheme of the present invention, the dual-screen folding hinge is applied to an intelligent terminal with a flexible folding screen or a dual-screen intelligent terminal.

A double-screen intelligent terminal adopts the double-screen folding hinge, and comprises a base, a first display screen and a second display screen; the folding rotating shaft mechanism is arranged between the base and the first display screen; the single-shaft mechanism is installed between the first display screen and the second display screen.

As a preferable improvement of the above dual-screen intelligent terminal, the base is a keyboard.

As a preferable improvement of the dual-screen intelligent terminal, the rotation range of the second display screen relative to the first display screen is 0-180 degrees; when the rotation angle between the first display screen and the second display screen is 0 degree or 180 degrees, no deflection exists between the waist-shaped shaft structure of the shaft center rotating shaft and the waist-shaped hole of the fixed seat.

As a preferred improvement of the above dual-screen intelligent terminal, the starting torque of the opening or closing of the second display screen is greater than the rotating torque of the folding rotating shaft mechanism.

Through the technical scheme, the technical scheme of the invention has the beneficial effects that: the double-screen folding hinge disclosed by the invention can be applied to an up-and-down expansion type double-screen intelligent terminal, is simple and reasonable in structure, good in convenience, good in opening and closing torque stability, good in cooperativity of the first display screen and the second display screen, not easy to cause screen damage and good in using effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dual-screen intelligent terminal of the present invention.

Fig. 2 is a schematic view of an installation structure of the double-screen folding hinge of the present invention.

Fig. 3 and fig. 4 are schematic structural diagrams of the active torsion assembly according to the present invention from different viewing angles.

Fig. 5 is a schematic structural view of the torsion runner base of the present invention.

Fig. 6 is a schematic structural diagram of a second torsion slider according to the present invention.

Fig. 7 and 8 are schematic structural views of the single-shaft mechanism of the present invention.

The corresponding part names indicated by the numbers and letters in the drawings:

4. Folding rotating shaft mechanism 5, single shaft mechanism 6, limiting support shaft

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.