CN215890764U

CN215890764U - Double-shaft hinge

Info

Publication number: CN215890764U
Application number: CN202121655827.8U
Authority: CN
Inventors: 赵精宇; 严银良
Original assignee: Anfano Feifeng Anji Communications Products Co ltd
Current assignee: Anfano Feifeng Anji Communications Products Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-22
Anticipated expiration: 2031-07-20

Abstract

The utility model provides a double-shaft hinge which comprises a left rotating support and a right rotating support, wherein the left rotating support is connected with a first shaft, the right rotating support is connected with a second shaft, a motion control mechanism is connected between the left rotating support and the right rotating support, the motion control mechanism is a relay type asynchronous motion connecting mechanism, and locking structures are arranged at different stages of rotation of the left rotating support and the right rotating support, so that the right rotating support is locked when the left rotating support rotates, and the left rotating support is locked when the right rotating support rotates. The utility model can reduce the restriction on the space thickness between two shafts, and the double-screen portable electronic terminal applying the double-shaft hinge can reduce the seam width between the left side shell and the right side shell as much as possible when the shell is unfolded.

Description

Double-shaft hinge

Technical Field

The present invention relates to a biaxial hinge of a portable electronic terminal, such as a biaxial hinge of a mobile phone, a notebook computer, etc. of a dual screen or a flexible screen.

Background

For a dual-screen portable electronic terminal, left and right housings thereof are connected by a biaxial hinge. When the double-screen portable electronic terminal is unfolded, a seam is formed between the left side shell and the right side shell. It is always desirable for users and designers to make the slit as narrow as possible, but this causes an increased need for avoiding the right end of the left housing and the left end of the right housing when the dual-screen portable electronic terminal is folded.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-shaft hinge which can help to improve the avoidance effect, so that a double-screen portable electronic terminal applying the double-shaft hinge can conditionally reduce the gap between a left side shell and a right side shell when the left side shell and the right side shell are flattened as much as possible. Therefore, the utility model adopts the following technical scheme:

the utility model provides a double-shaft hinge, includes that the levogyration is rotated the support and is rotated the support on the right side, the first axle of levogyration leg joint, the second axle is rotated the leg joint on the right side, rotates and connects motion control mechanism between the support on the levogyration and the right side, its characterized in that motion control mechanism is the asynchronous motion coupling mechanism of relay, rotates the different stages of support pivoted to the levogyration support and the right side and is provided with locking structure for when the levogyration support rotates, the support is rotated by the right side and is locked, when the support is rotated to the right side, the levogyration support is locked.

Further, the motion control mechanism is provided with a left guide groove which is allocated to the left rotating support and a right guide groove which is allocated to the right rotating support, the left guide groove is arranged on a structure which rotates synchronously with the left rotating support and is arranged along the circumferential direction of a first shaft, the right guide groove is arranged on a structure which rotates synchronously with the right rotating support and is arranged along the circumferential direction of a second shaft, and the motion control mechanism is provided with a rotating control rod; the rotation axis perpendicular to primary shaft and the secondary shaft of rotation control pole, the left end of rotation control pole with left side guide way cooperation, the right-hand member with right side guide way cooperation, right side guide way sets up axial straight flute section and chute section, left side guide way sets up axial straight flute section and chute section, the straight flute section of left side guide way and the chute section of right guide way pair, the chute section of left side guide way and the straight flute section of right guide way pair.

Furthermore, the left end and the right end of the rotation control rod are equal in arm length relative to the rotation axis, the projection length of the inclined groove section of the left guide groove on the axis is equal to the length of the matched straight groove section of the right guide groove, and the length of the straight groove section of the left guide groove is equal to the projection length of the matched inclined groove section of the right guide groove on the axis.

Furthermore, the corresponding rotation angle of the chute section is half of the maximum rotation opening angle of the double-shaft hinge.

Further, a shaft or a shaft sleeve of a rotation control rod is arranged in the middle shell of the mobile electronic terminal, and the rotation control rod is rotatably connected with the shaft or the shaft sleeve.

The double-shaft hinge adopts the asynchronous sequential rotating structure, realizes the relay type asynchronous rotation of the left rotating structure and the right rotating structure, and is beneficial to reducing the strength requirement on the connecting part between the left rotating structure and the right rotating structure, thereby reducing the requirement of the connecting part on the diameter or the thickness, increasing the avoiding effect and reducing the constraint on the space thickness between two shafts; furthermore, the double-screen portable electronic terminal adopting the double-shaft hinge can reduce the restriction on the space thickness between two shafts, the width of a seam between the left side shell and the right side shell is reduced as much as possible under the condition of the double-screen portable electronic terminal applying the double-shaft hinge, the scheme can also be applied to a flexible screen electronic terminal with the middle part supporting a flexible screen by two rotating supporting plates, and the width of the seam between the two rotating supporting plates can also be reduced as much as possible under the condition of the flattening.

Drawings

Fig. 1 is an exploded view of the structure of an embodiment of the present invention.

Fig. 2 and 3 are front and back views, respectively, of an embodiment of the biaxial hinge of the present invention in its starting state, i.e., at 0 °.

Fig. 4 and 5 are front and back views, respectively, of an embodiment of the biaxial hinge of the present invention when opened to a first angle (90 ° in this embodiment).

Fig. 6 and 7 are front and back views, respectively, of an embodiment of the biaxial hinge of the present invention when opened to a second angle (180 deg. in this embodiment).

Detailed Description

Reference is made to the accompanying drawings. The utility model provides a double-shaft hinge which comprises a left rotating support 1 and a right rotating support 2, wherein a left shell and a right shell of a portable electronic terminal (such as a double-screen mobile phone or a flexible-screen mobile phone) are respectively connected with the left rotating support 1 and the right rotating support 2.

The left rotating support 1 is connected with the first shaft 10, the right rotating support 2 is connected with the second shaft 20, a motion control mechanism is connected between the left rotating support 1 and the right rotating support 2, the motion control mechanism is a relay type asynchronous motion connection mechanism, and the motion control mechanism is provided with locking structures for different stages of rotation of the left rotating support 1 and the right rotating support 2, so that when the left rotating support 1 rotates, the right rotating support 2 is locked, and when the right rotating support 2 rotates, the left rotating support 1 is locked.

The motion control mechanism is provided with a left guide groove 3 which is assigned to the left rotating support and a right guide groove 4 which is assigned to the right rotating support, the left guide groove 3 is arranged on a structure which rotates synchronously with the left rotating support (such as a structure which is sleeved outside the first shaft 10) and is arranged along the circumferential direction of the first shaft 10, the right guide groove 4 is arranged on a structure which rotates synchronously with the right rotating support (such as a structure which is sleeved outside the second shaft 20) and is arranged along the circumferential direction of the second shaft 20, and the motion control mechanism is provided with a rotating control rod 5; the axis of rotation perpendicular to primary shaft 10 and secondary shaft 20 of rotation control lever 5, the left end 51 of rotation control lever 5 with left guide way 3 cooperation, right-hand member 52 with right guide way 4 cooperation, right guide way 4 sets up axial straight flute profile 41 and chute section 42, left side guide way 3 sets up axial straight flute profile 31 and chute section 32, the straight flute profile 31 of left side guide way 3 and the chute section 42 of right guide way pair, the chute section 32 of left side guide way 3 and the straight flute profile 41 of right guide way 4 pair. The

straight sections

31, 41 and the end of the rotary control rod 5 are matched to form a locking structure. The axial

straight groove sections

31 and 41 are parallel to the first shaft 1 and the second shaft 2, and the

inclined groove sections

32 and 42 are spiral grooves which form a certain included angle with the first shaft 10 and the second shaft 20 when spirally unfolded. Taking fig. 2 and 3 as an example, when one end (for example, the left end 51) of the rotation control lever 5 is located at the chute section 32 of the left guide groove 3 and the other end (for example, the right end 52) is located at the straight groove section 41 of the right guide groove 4, the left rotation bracket 1 can be rotated, at this time, the left end 51 slides along the chute section 32, the rotation control lever 5 is rotated about the shaft 60, at this time, the right rotation bracket 4 is locked by the straight groove section 42 thereof engaging with the right end 52, the right rotation bracket 4 cannot be rotated, when the left end 51 slides to the connecting portion of the chute section 32 and the straight groove section 31, the right end 52 also slides to the connecting portion of the straight groove section 41 and the chute section 42, and in the next relay section (as shown in fig. 4 and 5), the left rotation bracket 1 is locked by the rotation of the right rotation bracket 2, and is rotated in the opposite direction (for example, from the state shown in fig. 4 and 5 to the state shown in fig. 2 and 3), and similarly.

For convenience of design and manufacture, the left end 51 and the right end 52 of the rotation control rod 5 are equal in arm length relative to the rotation axis, the projection length of the chute section 32 of the left guide chute 3 on the axis is equal to the length of the straight chute section 41 of the right guide chute 4, and the projection length of the straight chute section 31 of the left guide chute 3 on the axis is equal to the projection length of the straight chute section 42 of the right guide chute 4 on the axis. If the arm lengths of the left end 51 and the right end 52 are not equal, the lengths of the left and right straight groove sections and the projection length of the oblique groove section can be adjusted accordingly.

In this embodiment, for example, the two-screen mobile phone with a maximum opening angle of 180 ° is applied, the left guide slot 3 is provided with a chute section 32 and a straight slot section 31, and the right guide slot 4 is provided with a chute section 42 and a straight slot section 41. The corresponding rotation angle of the chute section is half of the maximum angle of rotation opening of the biaxial hinge, which is 90 ° in this embodiment. According to design requirements, two or more sections of straight groove sections and two or more sections of inclined groove sections can be arranged, the straight groove section 31 of the left guide groove 3 and the inclined groove section 42 of the right guide groove are paired one to one, and the inclined groove section 32 of the left guide groove 3 and the straight groove section 41 of the right guide groove 4 are paired one to one.

The rotation support structure of the rotation control lever 5 may be directly disposed on the middle housing of the mobile electronic terminal, or disposed on the bracket 6, the bracket 6 is mounted on the middle housing, the rotation support structure may be a shaft 60, the rotation control lever 5 is rotatably connected to the shaft 60 through a shaft hole 50, and reference numeral 7 is a cover of the shaft hole 50. The bracket 6 may also serve as a mounting bracket for the first shaft 10 and the second shaft 20.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

It is to be understood that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the utility model and the above-described drawings are intended to cover non-exclusive inclusions. The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first" and "second" are also used for brevity of description only and do not indicate or imply relative importance.

Claims

1. The utility model provides a double-shaft hinge, includes that the levogyration is rotated the support and is rotated the support on the right side, the first axle of levogyration leg joint, the second axle is rotated the leg joint on the right side, rotates and connects motion control mechanism between the support on the levogyration and the right side, its characterized in that motion control mechanism is the asynchronous motion coupling mechanism of relay, rotates the different stages of support pivoted to the levogyration support and the right side and is provided with locking structure for when the levogyration support rotates, the support is rotated by the right side and is locked, when the support is rotated to the right side, the levogyration support is locked.

2. A biaxial hinge as defined in claim 1, wherein said motion control means is provided with a left guide groove assigned to the left rotating bracket and a right guide groove assigned to the right rotating bracket, said left guide groove being provided on the structure rotating synchronously with the left rotating bracket and being circumferentially arranged along the first axis, said right guide groove being provided on the structure rotating synchronously with the right rotating bracket and being circumferentially arranged along the second axis, said motion control means being provided with a rotation control lever; the rotation axis perpendicular to primary shaft and the secondary shaft of rotation control pole, the left end of rotation control pole with left side guide way cooperation, the right-hand member with right side guide way cooperation, right side guide way sets up axial straight flute section and chute section, left side guide way sets up axial straight flute section and chute section, the straight flute section of left side guide way and the chute section of right guide way pair, the chute section of left side guide way and the straight flute section of right guide way pair.

3. A biaxial hinge as defined in claim 2, wherein left and right ends of said rotation control lever are equal in arm length with respect to the axis of rotation, a projected length of a chute section of said left guide groove on the axis is equal to a length of a straight section of a counterpart of said right guide groove, and a length of a straight section of said left guide groove and a length of a projection of a diagonal section of said counterpart of said right guide groove on the axis are equal.

4. A biaxial hinge as defined in claim 2, wherein the diagonal segments correspond to a rotation angle which is half the maximum angle of rotation of the biaxial hinge.

5. A biaxial hinge as defined in claim 2, wherein a shaft or bush of a rotation control lever is provided in the middle housing of the mobile electronic terminal, said rotation control lever being rotatably connected to said shaft or bush.