CN215928107U - Double-shaft hinge with external cam - Google Patents
Double-shaft hinge with external cam Download PDFInfo
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- CN215928107U CN215928107U CN202121531198.8U CN202121531198U CN215928107U CN 215928107 U CN215928107 U CN 215928107U CN 202121531198 U CN202121531198 U CN 202121531198U CN 215928107 U CN215928107 U CN 215928107U
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- sliding
- locking piece
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Abstract
The utility model provides a double-shaft hinge with an external cam, which is provided with a locking structure, wherein the locking structure comprises a left sliding locking piece and a right sliding locking piece, the left sliding locking piece and the right sliding locking piece are respectively slidably arranged on a frame body of a left rotating connecting frame and a right rotating connecting frame outside a middle shell of a mobile terminal, the heads of the left sliding locking piece and the right sliding locking piece are provided with a locking part and a friction part, the friction part protrudes out of the locking part, the locking part is arranged beside the friction part and is a metal body, and the friction part is of a flexible structure; the utility model can arrange the locking structure outside the middle shell, thereby not only having high locking reliability of the locking structure, but also avoiding the influence of friction and abrasion on the appearance.
Description
Technical Field
The utility model relates to a double-axis hinge, in particular to a double-axis hinge of a flexible screen mobile terminal, wherein the mobile terminal can be a mobile phone, a notebook computer and the like.
Background
For the fold-in flexible screen mobile terminal, in order to maintain stability of a 180 ° flattened state, there is a hinge that is provided with a locking structure. The locking structure has a scheme of being disposed inside a middle housing of the flexible screen mobile terminal, which may occupy more space of the middle housing. There is also an embodiment in which the lock structure is provided outside the middle housing and uses the outer side surface of the middle housing as the cam surface, but thereby the lock head of the lock structure rubs against the surface of the middle housing and the appearance is deteriorated due to wear of the housing surface after a certain period of use.
SUMMERY OF THE UTILITY MODEL
The technical scheme to be solved by the utility model is to provide the double-shaft hinge with the external cam and capable of avoiding influencing the appearance of the middle shell. Therefore, the utility model adopts the following technical scheme:
a double-shaft hinge with an external cam comprises a first shaft and a second shaft which are parallel, a left rotating connecting frame and a right rotating connecting frame, wherein the left rotating connecting frame and the right rotating connecting frame are respectively connected with the first shaft and the second shaft; the double-shaft hinge is further provided with a locking structure, and the locking structure is used for locking the left rotating connecting frame and the right rotating connecting frame when the left rotating connecting frame and the right rotating connecting frame rotate to the angle corresponding to the unfolding of the mobile terminal; the locking structure comprises a left sliding locking piece and a right sliding locking piece, wherein the left sliding locking piece and the right sliding locking piece are respectively slidably arranged on a frame body of the left rotating connecting frame and the right rotating connecting frame outside the middle shell of the mobile terminal and respectively rotate synchronously with the left rotating connecting frame and the right rotating connecting frame; the head parts of the left sliding locking piece and the right sliding locking piece are provided with a locking part and a friction part, the friction part protrudes out of the locking part, the locking part is arranged beside the friction part and is a metal body, and the friction part is of a flexible structure; the locking structure is characterized in that the outer surface of the middle shell is provided with locking grooves corresponding to the locking parts of the left sliding locking piece and the right sliding locking piece respectively, the outer surface of the middle shell is also provided with a cam surface, and the cam surface is matched with the friction parts of the left sliding locking piece and the right sliding locking piece and can guide the locking parts of the left sliding locking piece and the right sliding locking piece into and out of the respective locking grooves; the locking structure is provided with a pushing structure outside the middle shell and used for pushing the left sliding lock piece and the right sliding lock piece to slide, and under the pushing of the pushing structure, the friction part is matched with the cam surface.
On the basis of the technical scheme, the utility model can also adopt the following further technical schemes or combine the further technical schemes for use:
the outer surface of the middle shell is provided with cam surfaces corresponding to the rotating range of the friction part, each cam surface comprises a left cam surface and a right cam surface, and the left lock groove and the right lock groove are respectively arranged on the side surfaces of the left cam concave part and the right cam concave part. The cam surface is provided at an end portion of a side surface of the intermediate housing.
The pushing structure comprises a spring, the left rotating connecting frame and the right rotating connecting frame are respectively provided with an installation groove, main bodies of the left sliding locking piece and the right sliding locking piece are arranged in the installation grooves, and the spring is also arranged in the installation grooves and sleeved outside the main bodies; the mounting grooves of the left rotating connecting frame and the right rotating connecting frame are respectively provided with a sliding guide structure of a left sliding locking piece and a sliding guide structure of a right sliding locking piece; the sliding direction of the left sliding lock and the right sliding lock is perpendicular to the first axis and the second axis.
The connecting part of the left rotating connecting frame and the first shaft and the connecting part of the right rotating connecting frame and the second shaft are positioned at the end part of the middle shell.
The locking portions are provided on both sides of the friction portion.
The flexible structure is synthesized on the metal body of the sliding lock piece through embedding and injection molding. Furthermore, the flexible structure is wrapped on the end part of the metal body of the sliding lock piece through insert injection molding, and the locking part is not covered by the flexible structure.
By adopting the technical scheme of the utility model, the locking structure is arranged outside the middle shell, so that the locking reliability of the locking structure is high, and the influence of friction and abrasion on the appearance is avoided.
Drawings
Fig. 1 is an exploded view of the structure of an embodiment of the present invention.
Figure 2a is an enlarged cross-sectional view of the head of the slide lock.
Figure 2b is an exploded view of the slide lock head.
Fig. 3 is a cross-sectional view of the embodiment of the present invention in a locked position.
FIG. 4 is a cross-sectional view of the friction area with the embodiment of the present invention in the locked position.
FIG. 5 is a cross-sectional view of the embodiment of the present invention in the locked position in the unlocked position.
FIG. 6 is a cross-sectional view of the friction area when the embodiment of the present invention is in the unlocked state.
Fig. 7 is a cross-sectional view of the mating relationship between the head of the slide lock and the intermediate housing when the embodiment of the present invention is in a locked condition.
Detailed Description
Reference is made to the accompanying drawings. The embodiment takes the application to a folding-in flexible screen mobile terminal as an example, and the flexible screen is arranged on the inner side of the mobile terminal. The utility model provides a double-shaft hinge which comprises a first shaft 11, a second shaft 12, a left rotating connecting frame 21 and a right rotating connecting frame 22 which are parallel, wherein the left rotating connecting frame 21 and the right rotating connecting frame 22 are respectively and fixedly connected with the first shaft 11 and the second shaft 12; the double-shaft hinge is further provided with a locking structure, and the locking structure is used for locking the left rotating connecting frame 21 and the right rotating connecting frame 22 when the left rotating connecting frame 21 and the right rotating connecting frame 22 rotate to the angle corresponding to the unfolding and flat state of the flexible inward-folded screen mobile terminal; the locking structure comprises a left sliding locking piece 31 and a right sliding locking piece 32, the left sliding locking piece 31 and the right sliding locking piece 32 are respectively slidably installed on the frame body of the left rotating connecting frame 21 and the right rotating connecting frame 22 outside the middle shell 100 of the folding flexible screen mobile terminal and respectively rotate synchronously with the left rotating connecting frame 21 and the right rotating connecting frame 22,
the head of left side sliding lock 31 and right side sliding lock 32 sets up locking position 311, 321 and friction position 312, 322, sliding lock 31 on the left side the both sides at friction position 312 all set up locking position 311, sliding lock 32 on the right side the both sides at friction position 322 all set up locking position 321. The friction parts 321 and 322 respectively protrude out of the locking parts 311 and 321, the locking parts 311 and 321 are metal bodies, the friction parts 312 and 322 are flexible structures, the flexible structures are wrapped on the metal body end parts of the sliding locking piece through insert injection molding, and the locking parts are not covered by the flexible structures. Not only can utilize metal to guarantee locking force, and avoid the friction between the metal body and the middle casing.
The locking structure is in the locking groove 41 that middle casing 100 surface setting corresponds left side slip latch fitting and right side slip latch fitting locking part 311, 321 respectively, and the outer surface of middle casing corresponds the rotation range at friction position and sets up to the cam surface, the cam surface includes left side cam surface and right side cam surface 51, and left side locking groove and right side locking groove 41 set up the side at left side cam concave part and right side cam concave part 511 respectively. The cam surface is provided at an end portion of the side of the middle housing 100.
The left cam surface 51 and the right cam surface 52 are respectively engaged with the friction portions 312 and 322 of the left slide lock 31 and the right slide lock 32, and can guide the locking portions 311 and 321 of the left slide lock 31 and the right slide lock 32 into and out of the respective lock grooves 41; the locking structure is further provided with a pushing structure outside the middle housing 100 for pushing the left sliding locking piece 31 and the right sliding locking piece 32 to slide, and under the pushing and pressing of the pushing structure, the friction parts 311 and 321 are respectively matched with the left cam surface and the right cam surface 51.
The left pushing structure and the right pushing structure respectively comprise a spring 6, the left rotating connecting frame 21 and the right rotating connecting frame 22 are respectively provided with mounting grooves 211 and 221, the left sliding lock piece 31 and the right sliding lock piece 32 are arranged in the mounting grooves 211 and 221, and the spring 6 is also arranged in the mounting grooves and respectively sleeved outside the left sliding lock piece 31 and the right sliding lock piece 32; the mounting grooves 211 and 221 of the left-hand rotating link 21 and the right-hand rotating link 22 are respectively provided with a sliding guide structure of the left-hand sliding lock 31 and the right-hand sliding lock 32. The sliding direction of left slide latch 31 and right slide latch 32 is perpendicular to first axis 11 and second axis 12.
The connection portion 212 of the left rotation connecting frame 21 and the first shaft 11 and the connection portion 222 of the right rotation connecting frame 22 and the second shaft 12 are located at the end of the middle housing 100.
As shown in the figure, the biaxial hinge is further provided with a torsion mechanism, the torsion mechanism comprises a wrapping and clamping part 7 wrapping and clamping a first shaft 11 and a second shaft 12, the wrapping and clamping part 7 is arranged at the port of the middle shell, and a synchronous reverse rotation mechanism 8 of the biaxial hinge is arranged on the inner side of the wrapping and clamping part 7. Reference numeral 80 is a mounting bracket in the intermediate housing, and the gear shaft is mounted on the mounting bracket 80.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the device or the element to be referred to must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the orientation or positional relationship in the present invention are used for illustrative purposes only and are not to be construed as a limitation of the present patent, and it is possible for one of ordinary skill in the art to understand the specific meaning of the above terms according to specific situations by combining the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "sandwiched," and "connected" are intended to be inclusive and mean, for example, that the elements may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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.
Claims (8)
1. A double-shaft hinge with an external cam comprises a first shaft and a second shaft which are parallel, a left rotating connecting frame and a right rotating connecting frame, wherein the left rotating connecting frame and the right rotating connecting frame are respectively connected with the first shaft and the second shaft; the double-shaft hinge is further provided with a locking structure, and the locking structure is used for locking the left rotating connecting frame and the right rotating connecting frame when the left rotating connecting frame and the right rotating connecting frame rotate to the angle corresponding to the unfolding of the mobile terminal; the locking structure comprises a left sliding locking piece and a right sliding locking piece, wherein the left sliding locking piece and the right sliding locking piece are respectively slidably arranged on a frame body of the left rotating connecting frame and the right rotating connecting frame outside the middle shell of the mobile terminal and respectively rotate synchronously with the left rotating connecting frame and the right rotating connecting frame; the head parts of the left sliding locking piece and the right sliding locking piece are provided with a locking part and a friction part, the friction part protrudes out of the locking part, the locking part is arranged beside the friction part and is a metal body, and the friction part is of a flexible structure; the locking structure is characterized in that the outer surface of the middle shell is provided with locking grooves corresponding to the locking parts of the left sliding locking piece and the right sliding locking piece respectively, the outer surface of the middle shell is also provided with a cam surface, and the cam surface is matched with the friction parts of the left sliding locking piece and the right sliding locking piece and can guide the locking parts of the left sliding locking piece and the right sliding locking piece into and out of the respective locking grooves; the locking structure is provided with a pushing structure outside the middle shell and used for pushing the left sliding lock piece and the right sliding lock piece to slide, and under the pushing of the pushing structure, the friction part is matched with the cam surface.
2. The external cam biaxial hinge as claimed in claim 1, wherein the outer surface of the middle shell is provided with a cam surface corresponding to the rotation range of the friction part, the cam surface comprises a left cam surface and a right cam surface, and the left locking groove and the right locking groove are respectively arranged at the side of the concave parts of the left cam and the right cam; the cam surface is provided at an end portion of a side surface of the intermediate housing.
3. The external cam biaxial hinge as defined in claim 1, wherein said pushing structure comprises a spring, said left and right rotating connecting frames are respectively provided with mounting grooves, the main bodies of said left and right sliding locks are disposed in said mounting grooves and said spring is also disposed in said mounting grooves and sleeved outside of said main bodies; the mounting grooves of the left rotating connecting frame and the right rotating connecting frame are respectively provided with a sliding guide structure of a left sliding locking piece and a sliding guide structure of a right sliding locking piece; the sliding direction of the left sliding lock and the right sliding lock is perpendicular to the first axis and the second axis.
4. The external cam biaxial hinge as defined in claim 1, wherein the connection portion of the left rotation connecting frame and the first shaft and the connection portion of the right rotation connecting frame and the second shaft are located at the end of the middle housing.
5. The external cam biaxial hinge as defined in claim 1, wherein said locking portions are provided on both sides of said friction portion.
6. The externally cammed biaxial hinge as defined in claim 1 wherein said flexible structure is insert molded to the metal body of the slide lock.
7. The external cam biaxial hinge as defined in claim 1, wherein said flexible structure is insert-molded around the metal body end of the slide lock, and the locking portion is not covered by the flexible structure.
8. The external cam biaxial hinge according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the mobile terminal is a fold-in flexible screen mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531198.8U CN215928107U (en) | 2021-07-07 | 2021-07-07 | Double-shaft hinge with external cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531198.8U CN215928107U (en) | 2021-07-07 | 2021-07-07 | Double-shaft hinge with external cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215928107U true CN215928107U (en) | 2022-03-01 |
Family
ID=80400698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121531198.8U Active CN215928107U (en) | 2021-07-07 | 2021-07-07 | Double-shaft hinge with external cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215928107U (en) |
-
2021
- 2021-07-07 CN CN202121531198.8U patent/CN215928107U/en active Active
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