Sequential switching double-shaft hinge roller type switching movement mechanism

Abstract

The utility model provides a sequential switching double-shaft hinge roller type switching motion mechanism, which comprises a first shaft and a second shaft, the roller type switching motion mechanism comprises one or more groups of cams, the same group of cams comprises a first cam connected with the first shaft and synchronously rotating and a second cam connected with the second shaft and synchronously rotating, and the first cam and the second cam are connected with the first shaft and synchronously rotating. The roller type switching movement mechanism further comprises a connecting frame, and the two ends of the connecting frame are rotationally connected with the first shaft and the second shaft. One or more ferry wheels are arranged between the first cam and the second cam of the same group of rollers, and the one or more ferry wheels are used for locking or unlocking the first cam according to the control of the first cam and the second cam of the same group of cams; the ferry wheel is installed on the connecting frame in a sliding and rotating mode, and the connecting frame is provided with the ferry wheel sliding limiting groove. The transition wheel can be buffered in a self-adaptive mode, the pause feeling of the sequential switching double-shaft hinge in the locking and unlocking switching process is eliminated, and the use experience feeling is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to portable mobile terminal's hinge, such as notebook computer, the hinge of flip mobile phone etc., mobile terminal support's hinge. BACKGROUND

[0002] Some notebook computers adopt double shaft hinges, wherein the upper shaft is connected with the screen shell, and the lower shaft is connected with the main machine. In some double shaft hinges, the upper shaft and the lower shaft rotate synchronously and reversely. Some double shaft hinges require sequential switching rotation. At present, the switching is realized by a slider movable between two cams synchronous with the upper shaft and the lower shaft to lock and unlock. This structure produces a jerk feeling when locking and unlocking are switched, affecting the use experience. SUMMARY

[0003] The utility model discloses a sequential switching double shaft hinge roller type switching movement mechanism, to solve the jerk feeling when switching in the background art. To this end, the utility model adopts the following technical scheme:

[0004] The sequential switching double shaft hinge roller type switching movement mechanism comprises a first shaft and a second shaft, and the roller type switching movement mechanism comprises one or more groups of cams. The same group of cams comprises a first cam connected with the first shaft to rotate synchronously and a second cam connected with the second shaft to rotate synchronously. The roller type switching movement mechanism further comprises a connecting frame, and both ends of the connecting frame are rotationally connected with the first shaft and the second shaft. The first cam and the second cam of the same group of rollers are provided with one or more rollers. The one or more rollers are used to lock or unlock the first cam according to the control of the first cam and the second cam in the same group of cams. The roller is slidably and rotationally mounted on the connecting frame, and the connecting frame is provided with a roller sliding limiting groove.

[0005] On the basis of the above technical scheme, the utility model can further adopt the following further technical schemes, or use these further technical schemes in combination:

[0006] The number of rollers provided between the first cam and the second cam of the same group of cams is two or more even numbers.

[0007] The connecting frame comprises a front connecting frame and a rear connecting frame, and both are provided with a roller sliding limiting groove. The front connecting frame and the rear connecting frame are respectively located on both sides of the roller. Both sides of the roller are respectively provided with a guide shaft, and the guide shaft is slidably connected with the roller sliding limiting groove.

[0008] The first cam and the second cam are respectively sleeved on the first shaft and the second shaft and are respectively synchronously rotated with the first shaft and the second shaft through flat position cooperation.

[0009] The first cam has a cylindrical surface and a groove for locking, the second cam has a first cylindrical surface corresponding to the locking state of the first cam; when the cam wheel cooperates with the groove, the connecting frame is kept synchronous with the first cam for locking the first cam, when the cam wheel cooperates with the cylindrical surface of the first cam, the first cam is in the unlocking state, and the connecting frame can rotate relative to the first cam.

[0010] When a plurality of cam groups are provided, the second cam has a second cylindrical surface corresponding to the unlocking state of the first cam and a rotation limiting part cooperating with the cam wheel, and the diameter of the second cylindrical surface is smaller than that of the first cylindrical surface.

[0011] The sequential switching double-shaft hinge is applied to a notebook computer, the first shaft is connected with a screen shell of the notebook computer, and the second shaft is connected with a main machine of the notebook computer.

[0012] With the closed state as a reference state, the first shaft is an upper shaft, the second shaft is a lower shaft, the first cam is an upper cam, and the second cam is a lower cam.

[0013] According to the technical scheme of the utility model, the cam wheel can be adaptively buffered, so that the feeling of jerk when the sequential switching double-shaft hinge is switched between the locking and unlocking states is eliminated, and the use experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides an embodiment of the utility model.

[0015] Figure 2 The utility model provides an embodiment of the utility model.

[0016] Figure 3 The utility model provides an embodiment of the utility model.

[0017] Figure 4 The utility model provides an embodiment of the utility model. Figure 1 The utility model provides an embodiment of the utility model. DETAILED DESCRIPTION

[0018] With reference to the drawings, the sequential switching double-shaft hinge roller type switching movement mechanism provided by the utility model comprises an upper shaft 11 and a lower shaft 12, the roller type switching movement mechanism comprises one or more cam groups, and two cam groups are provided in the embodiment.

[0019] The same group of cams includes an upper cam connected with the upper shaft 11 to rotate synchronously and a lower cam connected with the lower shaft 12 to rotate synchronously, the upper cam and the lower cam of the first group of cams are respectively denoted by reference numerals 21 and 22, the upper cam and the lower cam of the second group of cams are respectively denoted by reference numerals 23 and 24, each group of cams can provide one-time locking and unlocking switching, and two groups of cams can provide two-time locking and unlocking switching.

[0020] One or more cross rollers 3 are arranged between the upper cam and the lower cam of the same group of rollers, as shown. Figure 4 The one or more cross rollers are used to lock or unlock the upper cam according to the control of the upper cam and the lower cam in the same group of cams.

[0021] The roller type switching movement mechanism further includes a connecting frame, the connecting frame includes a front connecting frame 41 and a rear connecting frame 42 and is provided with a cross roller sliding limiting groove 5, which defines the movement track of the cross roller 3, the front connecting frame 41 and the rear connecting frame 42 are respectively located at two sides of the cross roller 3, a guide shaft 31 is arranged at each side of the cross roller 3, the guide shaft 31 is in sliding connection with the cross roller sliding limiting groove 5, and the cross roller 3 is slidably and rotatably installed on the connecting frame. The two ends of the connecting frame 41 and 42 are rotatably connected with the upper shaft 11 and the lower shaft 12 respectively.

[0022] Preferably, the number of cross rollers arranged between the upper cam and the lower cam of the same group of cams is an even number, and the number of cross rollers is 2 more preferably.

[0023] The upper cam 21, 23 is sleeved on the upper shaft 11 and connected with the upper shaft 11 to rotate synchronously through flat position cooperation. The lower cam 22, 24 is sleeved on the lower shaft 12 and connected with the lower shaft 12 to rotate synchronously through flat position cooperation.

[0024] The upper cam 21, 23 has a cylindrical surface 91 and a groove 92 for locking, and the lower cam 22, 24 has a first cylindrical surface 95 corresponding to the locking state of the upper cam, a second cylindrical surface 93 corresponding to the unlocking state of the upper cam, and a rotation limiting portion 94 cooperating with the cross roller, the diameter of the second cylindrical surface 93 is smaller than that of the first cylindrical surface 94. When the cross roller 3 cooperates with the groove 92 of the upper cam 21 or the upper cam 23, the corresponding upper cam 21 or the upper cam 23 is locked, and the connecting frame 41, 42 keeps synchronization with the corresponding upper cam 21 or the upper cam 23. When the cross roller 3 cooperates with the cylindrical surface 91 of the upper cam 21 or the upper cam 23, the corresponding upper cam 21 or the upper cam 23 is in the unlocking state, and the connecting frame 41, 42 can rotate relative to the corresponding upper cam 21 or the upper cam 23.

[0025] The sequential switching double shaft hinge is applied to a notebook computer, the upper shaft 11 is connected with a screen shell of the notebook computer, and the lower shaft 12 is connected with a main body (i.e. a machine body on which a keyboard is arranged) of the notebook computer. A reference sign 71 is a part of the upper shaft for connecting with the screen shell of the notebook computer, and a reference sign 72 is a part for connecting with the connecting frame 8 of the main body of the notebook computer.

[0026] Reference signs 61 and 62 are torsion mechanisms arranged on the upper shaft and the lower shaft respectively.

[0027] The above merely describes specific embodiments of the present application, but the structural features of the present application are not limited to this, and any person skilled in the art can make changes or modifications in the field of the present application, which are all covered in the protection scope of the present application.

[0028] It should be noted that the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "mount", "arrange", "provide with", "connect", "be connected", "be sleeved" should be understood in a broad sense. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the present application, it should be understood that the terms "one end", "the other end", "outer side", "inner side", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only used for simplicity in description, and are not intended to indicate or imply relative importance.

Claims

1. A sequential switching biaxial hinge roller switching motion mechanism, comprising a first shaft and a second shaft, the roller switching motion mechanism comprising one or more sets of cams, the same set of cams comprising a first cam connected with the first shaft to rotate synchronously and a second cam connected with the second shaft to rotate synchronously, the roller switching motion mechanism further comprising a connecting frame, both ends of the connecting frame being rotationally connected with the first shaft and the second shaft; characterized in that, One or more cross rollers are arranged between the first cam and the second cam of the same group of cams, and are used to lock or unlock the first cam under the control of the first cam and the second cam in the same group of cams; the cross rollers are slidably and rotatably mounted on the connecting frame, and the connecting frame is provided with a cross roller sliding limiting groove.

2. The sequential switch bi-axial hinge roller switch motion mechanism of claim 1, wherein, The number of cross rollers arranged between the first cam and the second cam of the same group of cams is 2 or an even number greater than 2.

3. The sequential switch biaxial hinge roller switch motion mechanism of claim 1, wherein, The connecting frame includes a front connecting frame and a rear connecting frame, and both are provided with a cross roller sliding limiting groove; the front connecting frame and the rear connecting frame are respectively arranged on both sides of the cross roller, and both sides of the cross roller are respectively provided with a guide shaft, which is in sliding connection with the cross roller sliding limiting groove.

4. The sequential switch biaxial hinge roller switch motion mechanism of claim 1, wherein, The first cam and the second cam are respectively sleeved on the first shaft and the second shaft, and are respectively in synchronous rotation with the first shaft and the second shaft through flat position cooperation.

5. The sequential switch biaxial hinge roller switch motion mechanism of claim 1, wherein, The first cam has a cylindrical surface and a recess for locking, and the second cam has a first cylindrical surface corresponding to the locking state of the first cam; when the cross roller cooperates with the recess, the connecting frame is kept synchronous with the first cam for locking the first cam, and when the cross roller cooperates with the cylindrical surface of the first cam, the first cam is in an unlocked state, and the connecting frame can rotate relative to the first cam.

6. The sequential switch biaxial hinge roller switch motion mechanism of claim 1, wherein, When multiple groups of cams are provided, the second cam has a second cylindrical surface corresponding to the unlocked state of the first cam and a rotation limiting portion cooperating with the cross roller, and the diameter of the second cylindrical surface is smaller than that of the first cylindrical surface.

7. The sequential switch biaxial hinge roller switch motion mechanism of claim 1, wherein, The sequential switching double-shaft hinge is applied to a notebook computer, the first shaft is connected with the screen shell of the notebook computer, and the second shaft is connected with the main machine of the notebook computer.

8. The sequence switching bi-axial hinge roller switching motion mechanism according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that, Taking the closed state as the reference state, the first shaft is the upper shaft, the second shaft is the lower shaft, the first cam is the upper cam, and the second cam is the lower cam. Taking the closed state as the reference state, the first shaft is the upper shaft, the second shaft is the lower shaft, the first cam is the upper cam, and the second cam is the lower cam.

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