CN209908978U - Biaxial hinge and portable electronic device - Google Patents

Biaxial hinge and portable electronic device Download PDF

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Publication number
CN209908978U
CN209908978U CN201920590687.7U CN201920590687U CN209908978U CN 209908978 U CN209908978 U CN 209908978U CN 201920590687 U CN201920590687 U CN 201920590687U CN 209908978 U CN209908978 U CN 209908978U
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Prior art keywords
gear shaft
gear
shaft
cover plate
hinge
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CN201920590687.7U
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Chinese (zh)
Inventor
唐正勇
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Taizhou Stronkin Electronic Co Ltd
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Taizhou Stronkin Electronic Co Ltd
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Priority to CN201920590687.7U priority Critical patent/CN209908978U/en
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Abstract

The utility model relates to a hinge field relates to a two-axis hinge and portable electronic equipment. The double-shaft hinge comprises a first gear shaft and a second gear shaft which are arranged in parallel side by side, and a connecting slide block positioned between the first gear shaft and the second gear shaft; a first bevel gear is arranged on the first gear shaft, and a second bevel gear is arranged on the second gear shaft; the connecting sliding block comprises a web plate and two connecting parts positioned on two sides of the web plate, and a first connecting helical gear and a second connecting helical gear which can be meshed and connected with the first helical gear and the second helical gear are respectively arranged on the two connecting parts; therefore, when any one of the first gear shaft and the second gear shaft is subjected to external force and rotates around the axis of the gear shaft, the connecting sliding block can move along the axis direction of the first gear shaft and the second gear shaft and drive the other gear shaft to rotate around the axis of the gear shaft, and therefore synchronous linkage rotation of the first gear shaft and the second gear shaft is achieved, the structure is simple, and transmission is stable.

Description

Biaxial hinge and portable electronic device
Technical Field
The utility model belongs to the technical field of the hinge technique and specifically relates to a two-axis hinge and portable electronic equipment are related to.
Background
In the prior art, a screen and a base of a general portable electronic device, such as a notebook computer, a foldable mobile phone or an electronic book reader, are connected by a biaxial hinge, so that the screen can be folded and folded in 360 degrees relative to the base or can be moved in the same reverse direction to restore the closed state; the specific structure of the double-shaft synchronous rotating shaft is that two gear shafts are respectively connected with a screen and a base to drive the two parts to swing, an idler wheel is arranged between the two gear shafts to realize the transmission of rotation between the two gear shafts, but the existing double-shaft synchronous rotating shaft is complex in structure, difficult to assemble and debug between the gears, and the problem of unsmooth or unstable operation can also occur in the specific use process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-axis hinge and portable electronic equipment to it is complicated to solve two-axis hinge structure among the prior art to a certain extent, is unfavorable for the technical problem of assembly, debugging.
The utility model provides a double-shaft hinge, which comprises a first gear shaft, a second gear shaft and a connecting slide block; the first gear shaft and the second gear shaft are arranged in parallel side by side, and the connecting sliding block is positioned between the first gear shaft and the second gear shaft; a first bevel gear is arranged on the first gear shaft; a second bevel gear is arranged on the second gear shaft; the connecting slide block comprises a web plate and connecting parts on two sides of the web plate; a first connecting bevel gear is arranged on the connecting part close to one side of the first gear shaft and can be in meshed connection with the first bevel gear; a second connecting bevel gear is arranged on the connecting part close to one side of the second gear shaft and can be in meshed connection with the second bevel gear; when the first gear shaft and the second gear shaft synchronously rotate, the connecting sliding block can reciprocate along the axial direction of the first gear shaft and the second gear shaft.
Further, the first bevel gear and the second bevel gear have opposite rotation directions.
Furthermore, the first bevel gear and the second bevel gear have the same rotating direction.
Further, the helical angles of the first and second bevel gears are different.
Further, the first helical gear and the second helical gear are external gears; the first connecting helical gear and the second connecting helical gear are internal gears.
Further, the device also comprises a cover plate, wherein the cover plate comprises an upper cover plate, a lower cover plate and a fastener; the upper cover plate and the lower cover plate can be buckled with each other, a movable space is formed in the middle, and shaft holes are formed in two sides of the movable space; the first gear shaft and the second gear shaft can respectively penetrate through the shaft holes on two sides of the cover plate, and the connecting sliding block is positioned in the movable space; a waist-shaped through hole is formed in the web plate of the connecting sliding block, and the length direction of the waist-shaped through hole is the same as the axial direction of the first gear shaft and the second gear shaft; the fastener passes through the upper cover plate, the waist-shaped through hole and the lower cover plate in sequence and is used for fastening and connecting the upper cover plate and the lower cover plate.
Further, the gear rack further comprises a plurality of torsion gaskets, and the torsion gaskets are stacked and sleeved on the first gear shaft and the second gear shaft.
Further, the torsion spring assembly and the fastening nut are further included; the torsion spring groups are respectively sleeved on the first gear shaft and the second gear shaft and respectively connected with the fastening nuts, and the fastening nuts can apply pressure to the torsion spring groups.
Further, the torsion spring assembly further comprises a connecting plate, the first gear shaft and the second gear shaft can penetrate through the connecting plate, and the connecting plate is located between the torsion gasket and the torsion spring assembly.
The utility model also provides a portable electronic device, which comprises a first shell, a second shell and the double-shaft hinge; the first housing is connected to the first gear shaft, and the second housing is connected to the second gear shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a double-shaft hinge which comprises a first gear shaft, a second gear shaft and a connecting slide block; the first gear shaft is provided with a first bevel gear, the second gear shaft is provided with a second bevel gear, and the first gear shaft and the second gear shaft can rotate around the axes of the first gear shaft and the second gear shaft. The first gear shaft and the second gear shaft are arranged in parallel side by side, and meanwhile, an assembly space is reserved between the first gear shaft and the second gear shaft and used for placing the connecting sliding block. The connecting sliding block comprises a web plate and two connecting parts located on two sides of the web plate, a first connecting bevel gear is arranged on the connecting part close to one side of the first gear shaft and can be meshed with the first bevel gear on the first gear shaft, a second connecting bevel gear is arranged on the connecting part close to one side of the second gear shaft and can be meshed with the second bevel gear on the first gear shaft. Assembling a first gear shaft, a second gear shaft and a connecting slide block together, and enabling a first connecting helical gear and a second connecting helical gear on two sides of the connecting slide block to be correspondingly meshed with the first helical gear and the second helical gear respectively; therefore, when any one gear shaft of the first gear shaft and the second gear shaft rotates around the axis of the gear shaft under the action of external force, the connecting sliding block can move along the axis direction of the first gear shaft and the second gear shaft and drive the other gear shaft to rotate around the axis of the gear shaft, and therefore synchronous linkage rotation of the first gear shaft and the second gear shaft is achieved.
Therefore, the connecting sliding block which can be respectively meshed and connected with the two gear shafts is arranged between the two gear shafts, so that the rotation of one of the gear shafts is transmitted to the other gear shaft through the connecting sliding block, the synchronous linkage rotation of the two gear shafts is realized, the structure is simple, and the transmission is stable.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a biaxial hinge according to an embodiment of the present invention at a first viewing angle;
fig. 2 is a schematic structural diagram of a biaxial hinge according to an embodiment of the present invention at a second viewing angle;
fig. 3 is a schematic structural diagram of a biaxial hinge at a third viewing angle according to an embodiment of the present invention.
Reference numerals:
1-a first gear shaft, 11-a first bevel gear, 2-a second gear shaft, 21-a second bevel gear, 3-a connecting slide block, 31-a web plate, 32-a connecting part, 33-a kidney-shaped through hole, 4-a cover plate, 41-a fastener, 5-a torsion gasket, 6-a torsion spring group, 7-a fastening nut and 8-a connecting plate.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a dual-axis hinge and a portable electronic device according to some embodiments of the present application with reference to fig. 1-3.
The application provides a double-shaft hinge, as shown in fig. 1 to 3, comprising a first gear shaft 1, a second gear shaft 2 and a connecting slide block 3;
the first gear shaft 1 and the second gear shaft 2 are arranged in parallel side by side, and the connecting slide block 3 is positioned between the first gear shaft 1 and the second gear shaft 2; a first bevel gear 11 is arranged on the first gear shaft 1; a second bevel gear 21 is arranged on the second gear shaft 2; the connecting slide block 3 comprises a web plate 31 and connecting parts 32 at two sides of the web plate 31; a first bevel gear connecting part 32 is arranged on one side close to the first gear shaft 1 and can be meshed with the first bevel gear 11; a second connecting bevel gear is arranged on the connecting part 32 close to one side of the second gear shaft 2 and can be meshed and connected with the second bevel gear 21;
when the first gear shaft 1 and the second gear shaft 2 rotate synchronously, the connecting slider 3 can reciprocate along the axial direction of the first gear shaft 1 and the second gear shaft 2.
The double-shaft hinge comprises a first gear shaft 1, a second gear shaft 2 and a connecting slide block 3; the first gear shaft 1 is provided with a first bevel gear 11, the second gear shaft 2 is provided with a second bevel gear 21, and both the first gear shaft 1 and the second gear shaft 2 can rotate around the axes thereof. The first gear shaft 1 and the second gear shaft 2 are arranged in parallel side by side, that is, the axes of the first gear shaft 1 and the second gear shaft 2 are parallel to each other, and meanwhile, an assembly space is reserved between the first gear shaft 1 and the second gear shaft 2 for placing the connecting slide block 3.
The connecting slider 3 comprises a web plate 31 and two connecting parts 32 positioned on two sides of the web plate 31, and when the connecting slider 3 is placed in the assembling space between the first gear shaft 1 and the second gear shaft 2, the two connecting parts 32 are positioned on two sides of the web plate 31, which are perpendicular to the axial direction of the first gear shaft 1 and the second gear shaft 2; a first connecting bevel gear is arranged on the connecting part 32 close to one side of the first gear shaft 1, the first connecting bevel gear can be meshed with the first bevel gear 11 on the first gear shaft 1, and when the first gear shaft 1 rotates clockwise or anticlockwise around the axis thereof under the action of external force, the connecting slide block 3 can reciprocate along the axis direction of the first gear shaft 1; similarly, when the connecting slider 3 reciprocates along the axial direction of the first gear shaft 1, the first gear shaft 1 can be driven to rotate around its own axis.
A second connecting bevel gear is arranged on the connecting part 32 close to one side of the second gear shaft 2, the second connecting bevel gear can be meshed with the second bevel gear 21 on the first gear shaft 1, and when the second gear shaft 2 rotates clockwise or anticlockwise around the axis of the second gear shaft 2 under the action of external force, the connecting slide block 3 can also reciprocate along the axis direction of the second gear shaft 2; similarly, when the connecting slider 3 reciprocates along the axis direction of the second gear shaft 2, the second gear shaft 2 can be driven to rotate around the axis.
Assembling a first gear shaft 1, a second gear shaft 2 and a connecting slide block 3 together, wherein the first gear shaft 1 and the second gear shaft 2 are arranged in parallel side by side, and the connecting slide block 3 is arranged between the first gear shaft 1 and the second gear shaft 2; the first connecting bevel gear and the second connecting bevel gear on the two sides of the connecting slide block 3 are respectively and correspondingly meshed with the first bevel gear 11 on the first gear shaft 1 and the second bevel gear 21 on the second gear shaft 2; therefore, when any one of the first gear shaft 1 and the second gear shaft 2 is subjected to external force and rotates around the axis of the gear shaft, the connecting sliding block 3 can move along the axis direction of the first gear shaft 1 and the second gear shaft 2 and drive the other gear shaft to rotate around the axis of the gear shaft, and therefore synchronous linkage rotation of the first gear shaft 1 and the second gear shaft 2 is achieved.
It should be noted that the connecting portions 32 at both sides of the connecting slider 3 have a certain length along the axial direction of the first gear shaft 1 and the second gear shaft 2, so when the connecting slider 3 is assembled with the first gear shaft 1 and the second gear shaft 2, the assembling area of the first gear shaft 1 and the second gear shaft 2 and the connecting slider 3 can be increased, and the transmission between them is more stable; meanwhile, the first connecting helical gear and the second connecting helical gear are positioned on two independent connecting parts 32 of the connecting sliding block 3, and the first connecting helical gear and the second connecting helical gear are two relatively independent gears; therefore, when the first and second connecting helical gears are assembled with the corresponding first and second gear shafts 1 and 2, there is no interference therebetween, which facilitates assembly.
Therefore, the connecting sliding block 3 which can be respectively meshed and connected with the two gear shafts is arranged between the two gear shafts, so that the rotation of one of the gear shafts is transmitted to the other gear shaft through the connecting sliding block 3, the synchronous linkage rotation of the two gear shafts is realized, the structure is simple, the assembly is convenient, and the transmission is stable.
In one embodiment of the present application, the first bevel gear 11 and the second bevel gear 21 preferably have opposite rotation directions, as shown in fig. 2.
In this embodiment, the rotation directions of the first bevel gear 11 and the second bevel gear 21 are opposite, that is, when the first gear shaft 1 rotates rightwards, the second gear shaft 2 rotates leftwards; or the first gear shaft 1 is rotated left, the second gear shaft 2 is rotated right, so that the first gear shaft 1 and the second gear shaft 2 are rotated in synchronization in the opposite rotation directions to each other.
In one embodiment of the present application, the first bevel gear 11 and the second bevel gear 21 preferably have the same rotation direction, as shown in fig. 2.
In this embodiment, the first and second helical gears 11 and 21 are rotated in the same direction, that is, the first and second gear shafts 1 and 2 can be rotated synchronously in the same rotational direction as each other.
In one embodiment of the present application, the first bevel gear 11 and the second bevel gear 21 preferably have different helix angles, as shown in fig. 1 and 2.
In this embodiment, when the first gear shaft 1 rotates by a certain angle and drives the connecting slider 3 to move by a certain displacement along the axis direction of the first gear shaft 1, the second gear shaft 2 also rotates, but because the helical angles of the first helical gear 11 and the second helical gear 21 are different, and under the condition that the pitch circle diameters of the first helical gear and the second helical gear are equal, the pitch circle diameters of the first helical gear 11 and the second helical gear 21 are different, the rotation angle of the second gear shaft 2 is also different from the rotation angle of the first gear shaft 1, even if the first gear shaft 1 and the second gear shaft 2 have different rotation speeds.
In one embodiment of the present application, preferably, as shown in fig. 1 and 2, the first and second bevel gears 11 and 21 are external gears; the first connecting helical gear and the second connecting helical gear are internal gears.
In this embodiment, the first bevel gear 11 and the second bevel gear 21 are external gears, and the first connecting bevel gear and the second connecting bevel gear are internal gears respectively corresponding to the first bevel gear 11 and the second bevel gear 21; therefore, compared with the meshing connection of all the external gears, the space can be saved, and the double-shaft hinge can have a smaller external dimension; meanwhile, the assembly area of the first gear shaft 1, the second gear shaft 2 and the connecting slide block 3 is increased, so that the gear transmission is more stable.
In one embodiment of the present application, preferably, as shown in fig. 3, the biaxial hinge further includes a cover plate 4, the cover plate 4 including an upper cover plate, a lower cover plate, and a fastener 41; the upper cover plate and the lower cover plate can be buckled with each other, a movable space is formed in the middle, and shaft holes are formed in two sides of the movable space; the first gear shaft 1 and the second gear shaft 2 can respectively penetrate through shaft holes on two sides of the cover plate 4, and the connecting slide block 3 is positioned in the movable space; a web plate 31 of the connecting slide block 3 is provided with a waist-shaped through hole 33, and the length direction of the waist-shaped through hole 33 is the same as the axial direction of the first gear shaft 1 and the second gear shaft 2; the fastening member 41 passes through the upper cover plate, the kidney-shaped through hole 33 and the lower cover plate in sequence, and is used for fastening and connecting the upper cover plate and the lower cover plate.
In this embodiment, the biaxial hinge further includes a cover plate 4, the cover plate 4 including an upper cover plate, a lower cover plate, and fasteners 41; the upper cover plate and the lower cover plate can be buckled together through a fastening piece 41, the buckled upper cover plate and the buckled lower cover plate can form a movable space in the middle, and two shaft holes are formed on two sides of the buckled upper cover plate and the buckled lower cover plate. Assembling a first gear shaft 1, a second gear shaft 2 and a connecting slide block 3 with a cover plate 4, wherein the first gear shaft 1 and the second gear shaft 2 respectively and correspondingly penetrate through shaft holes on two sides of the cover plate 4, the connecting slide block 3 between the two gear shafts is positioned in an active space between an upper cover plate and a lower cover plate, a waist-shaped through hole 33 is formed in a web plate 31 of the connecting slide block 3, a fastener 41 for connecting the upper cover plate and the lower cover plate can penetrate through the waist-shaped through hole 33 in the web plate 31, and the connecting slide block 3 can reciprocate in the active space along the axial direction of the first gear shaft 1 and the second gear shaft 2.
In one embodiment of the present application, preferably, as shown in fig. 1 and 3, the biaxial hinge further includes a plurality of torsion pads 5, and the plurality of torsion pads 5 are stacked and sleeved on the first gear shaft 1 and the second gear shaft 2.
In this embodiment, the biaxial hinge further includes a plurality of torsion pads 5, the plurality of torsion pads 5 are sleeved on the first gear shaft 1 and the second gear shaft 2 in a stacked manner; since the torque spacers 5 have a clamping force on the first gear shaft 1 and the second gear shaft 2, when the first gear shaft 1 and the second gear shaft 2 rotate, a torque can be generated by the torque spacers 5, and at the same time, the torque of the first gear shaft 1 and the second gear shaft 2 can be adjusted by adjusting the number of the torque spacers 5.
In one embodiment of the present application, preferably, as shown in fig. 1 and 3, the biaxial hinge further includes a torsion spring group 6 and a fastening nut 7; torsion spring groups 6 are respectively sleeved on the first gear shaft 1 and the second gear shaft 2 and are respectively connected with fastening nuts 7, and the fastening nuts 7 can apply pressure to the torsion spring groups 6.
In this embodiment, the biaxial hinge further includes a torsion spring group 6 and a fastening nut 7, the torsion spring group 6 is respectively sleeved on the first gear shaft 1 and the second gear shaft 2, and the torsion acting on the first gear shaft 1 and the second gear shaft 2 is changed by the torsion spring group 6; after the torsion spring group 6 is installed, fastening nuts 7 are respectively installed at the end parts of the first gear shaft 1 and the second gear shaft; screwing the fastening nut 7 to enable the fastening nut 7 to abut against the torsion spring group 6 and to press the torsion spring group 6 on the first gear shaft 1 and the second gear shaft 2; by adjusting the magnitude of the pressing force applied to the torsion spring group 6 by the fastening nut 7, the magnitude of the torsion force applied to the first gear shaft 1 and the second gear shaft 2 by the torsion spring group 6 can be changed.
Preferably, the torsion spring set 6 is a plurality of disc-shaped spring pieces, that is, the disc-shaped spring pieces are sleeved on the first gear shaft 1 and the second gear shaft 2 in a stacked manner, so as to provide torsion to the first gear shaft 1 and the second gear shaft 2.
In one embodiment of the present application, preferably, as shown in fig. 1 and 3, the biaxial hinge further includes a connecting plate 8, the first gear shaft 1 and the second gear shaft 2 can pass through the connecting plate 8, and the connecting plate 8 is located between the torsion pad 5 and the torsion spring group 6.
In this embodiment, the biaxial hinge further includes a connecting plate 8, the connecting plate 8 being located between the plurality of torsion pads 5 and the torsion spring group 6; through-holes are formed in the two sides, perpendicular to the axial direction of the first gear shaft 1 and the second gear shaft 2, of the connecting plate 8, the first gear shaft 1 and the second gear shaft 2 can respectively correspond to the through-holes in the through-connection plate 8, the connecting plate 8 can isolate the torsion gaskets 5 mounted on the first gear shaft 1 and the second gear shaft 2 from the torsion spring group 6, and the torsion gaskets 5 and the torsion spring group 6 can independently adjust the torsion of the first rotating shaft and the second rotating shaft.
When the device is used specifically, after the first gear shaft 1, the second gear shaft 2, the connecting slide block 3 and the cover plate 4 are assembled, a plurality of torsion gaskets 5 are stacked and sleeved on the first gear shaft 1 and the second gear shaft 2, and the torsion gasket 5 close to one end of the cover plate 4 is abutted against the cover plate 4; then correspondingly assembling the connecting plate 8 on the first gear shaft 1 and the second gear shaft 2 and abutting against the torsion gasket 5; and then respectively sleeving the torsion spring group 6 on the first gear shaft 1 and the second gear shaft 2 and abutting against the connecting plate 8, finally installing two fastening nuts 7 and corresponding gaskets on the corresponding first gear shaft 1 and the second gear shaft 2, and screwing in place, thereby completing the assembly of the whole double-shaft hinge.
The present application further provides a portable electronic device comprising a first housing, a second housing, and the biaxial hinge of any of the above embodiments; the first housing is connected to a first gear shaft 1, and the second housing is connected to a second gear shaft 2.
In this embodiment, the portable electronic device includes a first housing, a second housing, and a biaxial hinge, a first gear shaft 1 of the biaxial hinge being connected to the first housing, a second gear shaft 2 of the biaxial hinge being connected to the second housing; the action of folding the first shell and the second shell in a 360-degree manner or returning to the closed state in the same reverse direction can be realized through the double-shaft hinge.
The portable electronic device includes the biaxial hinge, so the portable electronic device has all the advantages of the biaxial hinge, and the detailed description is omitted here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A double-shaft hinge is characterized by comprising a first gear shaft, a second gear shaft and a connecting slide block;
the first gear shaft and the second gear shaft are arranged in parallel side by side, and the connecting sliding block is positioned between the first gear shaft and the second gear shaft; a first bevel gear is arranged on the first gear shaft, and a second bevel gear is arranged on the second gear shaft;
the connecting slide block comprises a web plate and connecting parts on two sides of the web plate; a first connecting bevel gear is arranged on the connecting part close to one side of the first gear shaft and can be in meshed connection with the first bevel gear;
a second connecting bevel gear is arranged on the connecting part close to one side of the second gear shaft and can be in meshed connection with the second bevel gear;
when the first gear shaft and the second gear shaft synchronously rotate, the connecting sliding block can reciprocate along the axial direction of the first gear shaft and the second gear shaft.
2. The dual axis hinge of claim 1, wherein the first beveled gear and the second beveled gear have opposite rotational directions.
3. The dual axis hinge of claim 1, wherein the first and second beveled gears have the same rotational direction.
4. The biaxial hinge as defined in claim 1, wherein the first helical gear and the second helical gear have different helix angles.
5. The biaxial hinge as defined in claim 1, wherein the first and second bevel gears are external gears; the first connecting helical gear and the second connecting helical gear are internal gears.
6. The dual axis hinge of claim 1, further comprising a cover plate comprising an upper cover plate, a lower cover plate, and a fastener;
the upper cover plate and the lower cover plate can be buckled with each other, a movable space is formed in the middle, and shaft holes are formed in two sides of the movable space;
the first gear shaft and the second gear shaft can respectively and correspondingly penetrate through the shaft holes on two sides of the cover plate, and the connecting sliding block is positioned in the movable space;
a waist-shaped through hole is formed in the web plate of the connecting sliding block, and the length direction of the waist-shaped through hole is the same as the axial direction of the first gear shaft and the second gear shaft;
the fastener passes through the upper cover plate, the waist-shaped through hole and the lower cover plate in sequence and is used for fastening and connecting the upper cover plate and the lower cover plate.
7. The dual-axis hinge of claim 1, further comprising a plurality of torsion washers stacked on the first and second gear shafts.
8. The dual axis hinge of claim 7, further comprising a torsion spring pack and a fastening nut; the torsion spring groups are respectively sleeved on the first gear shaft and the second gear shaft and respectively connected with the fastening nuts, and the fastening nuts can apply pressure to the torsion spring groups.
9. The dual-axis hinge of claim 8, further comprising a connecting plate through which the first gear shaft and the second gear shaft can pass, the connecting plate being located between the torsion washer and the torsion spring pack.
10. A portable electronic device characterized by comprising a first housing, a second housing, and a biaxial hinge according to any one of claims 1 to 9;
the first housing is connected to the first gear shaft, and the second housing is connected to the second gear shaft.
CN201920590687.7U 2019-04-26 2019-04-26 Biaxial hinge and portable electronic device Active CN209908978U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920590687.7U CN209908978U (en) 2019-04-26 2019-04-26 Biaxial hinge and portable electronic device

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Application Number Priority Date Filing Date Title
CN201920590687.7U CN209908978U (en) 2019-04-26 2019-04-26 Biaxial hinge and portable electronic device

Publications (1)

Publication Number Publication Date
CN209908978U true CN209908978U (en) 2020-01-07

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CN201920590687.7U Active CN209908978U (en) 2019-04-26 2019-04-26 Biaxial hinge and portable electronic device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113883157A (en) * 2020-07-03 2022-01-04 瑞进电子系统有限公司 Electronic device having movable block and biaxial hinge structure
CN114760781A (en) * 2021-01-08 2022-07-15 瑞进电子系统有限公司 Electronic device having bevel-gear biaxial hinge structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113883157A (en) * 2020-07-03 2022-01-04 瑞进电子系统有限公司 Electronic device having movable block and biaxial hinge structure
CN114760781A (en) * 2021-01-08 2022-07-15 瑞进电子系统有限公司 Electronic device having bevel-gear biaxial hinge structure

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