CN213342297U

CN213342297U - 360 gear train hinge and mobile terminal

Info

Publication number: CN213342297U
Application number: CN202022182464.2U
Authority: CN
Inventors: 陈荣; 许钰锋
Original assignee: Dongguan Huanli Intelligent Technology Co ltd
Current assignee: Dongguan Huanli Intelligent Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-01
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a 360 gear train hinge and mobile terminal, this 360 gear train hinge, including synchronous guider, damping device and spring rail device, synchronous guider includes the track main shaft, the gear shaft reaches stride an axle slider, the gear shaft symmetry respectively sets up in the both sides of track main shaft, install synchronous gear and lazytongs on track main shaft and the gear shaft, the one end of track main shaft is equipped with the track spout, the mid-section of striding an axle slider is equipped with the slip strip, the both sides of striding an axle slider are equipped with spacing hole, the slip strip is installed in the track spout, spacing hole is installed in the gear shaft that is close to striding an axle slider. The track in the track axis of the gear set hinge is in a static state relative to the hinge forever, the synchronous gears and the gear shafts on the two sides can rotate by the same angle, so that the synchronous gears and the gear shafts coaxially and synchronously rotate and generate synchronous displacement along with the movement of the hinge, the 360-degree folding effect is realized, and the folding stability is ensured.

Description

360 gear train hinge and mobile terminal

Technical Field

The utility model relates to a hinge structure technical field especially relates to a 360 gear train hinge and mobile terminal.

Background

The flexible screen is an emerging screen, and for an outer flexible screen mobile terminal with the flexible screen arranged outside the mobile terminal, the length change caused by the closing and opening of the hinge needs to be dealt with. For the middle part of the hinge, some hinges adopt a structure of a plurality of supporting bodies to realize the support and the shape change when bending and flattening.

However, when the existing hinge structure rotates, the hinge structure can only rotate within the range of 0-180 degrees generally, the folding range is limited, and the hinge structure cannot be adapted to terminal equipment which rotates and folds within the range of 360 degrees, so that the adaptability of the hinge is poor; meanwhile, the gear and the axis in the existing hinge structure can not realize synchronous displacement movement, and certain folding limitation exists.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a 360-degree gear set hinge aiming at the technical problems that the existing hinge structure cannot realize rotation folding within a 360-degree range and synchronous displacement movement between the gears and the axis cannot be realized, wherein in the process of hinge folding under the action of the gear mechanism, the gears and the axis at two sides can rotate by the same angle, so that the synchronous gears and the axis rotate coaxially and synchronously and generate synchronous displacement along with the movement of the hinge, thereby realizing 360-degree folding effect and ensuring folding stability.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides a 360 gear train hinges, includes synchronous guider, damping device and spring rail set, synchronous guider's quantity be two and connect respectively in damping device's both ends, synchronous guider includes track main shaft, gear shaft and strides an axle slider, the gear shaft respectively the symmetry set up in track main shaft's both sides, install synchronous gear and lazytongs on track main shaft and the gear shaft, the one end of track main shaft is equipped with the track spout, the mid-section of striding an axle slider is equipped with the slip strip, the both sides of striding an axle slider are equipped with spacing hole, the slip strip install in the track spout, spacing hole install in be close to stride an axle slider's gear shaft.

The utility model discloses a track in the track axle center of 360 gear train hinges is in quiescent condition for the hinge forever, and the synchronizing gear and the gear shaft of both sides all can rotate the same angle, make synchronizing gear and the coaxial synchronous rotation of gear shaft and produce synchronous displacement along with the hinge motion, realized 360 folding effects and ensured folding stability.

In one embodiment, the synchronizing mechanism comprises a plurality of symmetrically arranged fixed gear piece groups and gear piece groups, the fixed gear piece groups and the gear piece groups are staggered and arranged to form a plurality of through holes with coplanar central points in a horizontal state, the track main shaft is arranged in the through hole at the middle position, and the track main shaft is a symmetrical shaft to form symmetrical and synchronous arrangement of the synchronizing mechanisms at two opposite sides.

In one embodiment, one end of the track main shaft and one end of the gear shaft are provided with clamp springs, the clamp springs are arranged close to the synchronous gear, and the other end of the gear shaft is provided with a threaded sleeve.

In one embodiment, the damping device comprises a plurality of damping shafts, a first fixed gear wheel set, a first gear wheel set, a damping plate set, a fixed damping plate set and an intermediate shaft member, wherein the first fixed gear wheel set and the first gear wheel set are assembled on the damping shafts in an staggered mode, the damping plate set and the fixed damping plate set are assembled on the damping shafts in a staggered mode, the intermediate shaft member penetrates through the first fixed gear wheel set, the first gear wheel set, the damping plate set and the fixed damping plate set, and a shaft sleeve is arranged at the end portion of the intermediate shaft member.

In one embodiment, the number of the spring rail devices is two, and the two spring rail devices are respectively symmetrically arranged on two sides of the synchronous guiding device and the damping device, the spring rail device comprises a rail sliding sheet, a fixed rail and a spring, the fixed rail is connected with a hinge side plate, the rail sliding sheet is provided with a sliding groove, the fixed rail is provided with a protruding part, the protruding part is arranged in the sliding groove, one end of the spring is connected with the rail sliding sheet, and the other end of the spring is connected with the hinge side plate.

In one embodiment, the hinge side plate is provided with a clamping hole, and one end of the fixed gear piece group and one end of the first fixed gear piece group are provided with clamping parts which are arranged in the clamping hole.

In one embodiment, the device further comprises a supporting steel bar, a first hinge back plate and a second hinge back plate, wherein one end of the track main shaft and one end of the gear shaft are installed in the installation hole of the supporting steel bar.

A mobile terminal comprises the 360-gear set hinge, a first shell and a second shell, wherein a first back plate and a second back plate are fixedly mounted at the back of the first shell and the back of the second shell respectively, and the first back plate and the second back plate are fixedly connected with corresponding track sliding pieces forming a spring track device.

In one embodiment, a first supporting plate and a second supporting plate for supporting and mounting the flexible screen are arranged at the top of the first back plate and the second back plate, and the first supporting plate and the second supporting plate are fixedly connected with the first shell and the second shell respectively.

Drawings

Fig. 1 is a schematic view of a 360-gear set hinge according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the 360 gear set hinge of FIG. 1 in a folded state;

FIG. 3 is another angular view of the 360-gear set hinge of FIG. 2 in a folded state;

FIG. 4 is a schematic view of the timing guide of FIG. 1 in a 180 folded condition;

FIG. 5 is a schematic view of the timing guide of FIG. 1 in a 0 folded condition;

FIG. 6 is a schematic view of the timing guide of FIG. 1 in a 360 folded condition;

FIG. 7 is an exploded view of the synchronization guide of FIG. 1;

FIG. 8 is a schematic view of the damping device of FIG. 1;

FIG. 9 is an exploded schematic view of the spring track device of FIG. 1;

fig. 10 is a schematic view of the terminal device in a 180 ° folded state;

fig. 11 is a schematic diagram of the state in which the terminal device is in the 0 ° fold;

fig. 12 is a schematic view of the terminal device in a 360 ° folded state;

FIG. 13 is a schematic diagram of a terminal device;

fig. 14 is another perspective view of the terminal device.

The reference numbers illustrate:

100. a 360 gear set hinge;

10. the damping device comprises a synchronous guide device, 11, a rail main shaft, 111, a rail sliding groove, 12, a gear shaft, 13, a shaft spanning sliding block, 131, a sliding strip, 132, a limiting hole, 14, a synchronous gear, 15, a synchronous mechanism, 151, a fixed gear piece group, 152, a gear piece group, 16, a clamp spring, 17, a threaded sleeve, 20, a damping device, 21, a damping shaft, 22, a first fixed gear piece group, 23, a first gear piece group, 24, a damping piece group, 25, a fixed damping piece group, 26, a shaft sleeve, 30 and a spring rail device; 31. a rail slider 311, a sliding groove 32, a fixed rail 321, a protrusion 33, a spring 34, a hinge side plate 40, an intermediate link 50, a support steel bar 60, a first hinge back plate 70, and a second hinge back plate;

200. a mobile terminal comprises a mobile terminal body 210, a first shell body 220 and a second shell body.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Please refer to fig. 1 to 9, which are the preferred embodiments of the present invention, a 360-gear hinge 100 includes a synchronous guiding device 10, a damping device 20 and a spring track device 30, the number of the synchronous guiding device 10 is two and is respectively connected to two ends of the damping device 20, the synchronous guiding device 10 includes a track main shaft 11, a gear shaft 12 and a shaft-crossing sliding block 13, the gear shaft 12 is respectively symmetrically disposed at two sides of the track main shaft 11, the track main shaft 11 and the gear shaft 12 are installed with a synchronous gear 14 and a synchronous mechanism 15, one end of the track main shaft 11 is provided with a track sliding chute 111, a middle section of the shaft-crossing sliding block 13 is provided with a sliding strip 131, two sides of the shaft-crossing sliding block 13 are provided with a limiting hole 132, the sliding strip 131 is installed in the track sliding chute 111, and the limiting hole 132.

The end points of the limit holes 132 and the sliding strip 131 are enabled to form a virtual locking triangle structure through the structural arrangement of the track sliding grooves and the shaft-crossing sliding blocks, the shaft-crossing sliding blocks can slide up and down unless two limit holes in the virtual triangle synchronously move at the same time, and the motion trail diagram of the two holes and the sliding strip guide rail is a variable high-altitude isosceles triangle, so that the track of the track sliding grooves of the track main shaft 11 is always kept in a vertical state, namely that the synchronous gear of the track main shaft 11 is in a state of never rotating relative to the synchronous gear of the gear shaft. The synchronous gear of the rail main shaft 11 can not rotate but can transmit motion to the synchronous gears of the gear shafts on the left side and the right side, the shaft center of the gear shaft 12 penetrating through the limiting hole 132 can be constrained to a straight line by the shaft-crossing sliding block no matter the hinge is in a 0-180-degree state or a 360-degree state, the center of the rail main shaft is just coincided with the straight line in the 180-degree state, and the synchronous action of the synchronous gears is added, so that the shaft center of the 5 shafts is collinear at any section after the 180-degree state, and the straightness of the hinge in the flattening state is ensured. Meanwhile, the fixed gear piece group and the gear piece group in the structure are both in a double-gear meshing state in the same section and are arranged in a staggered mode to achieve a 4-gear meshing state, the even-numbered gear combination can play a role in sharing torque and prolonging the service life of the rotating shaft, the rail in the rail main shaft is finally in a static state relative to the hinge, the synchronous gears and the gear shafts on the two sides can rotate by the same angle, the corresponding synchronous gears and the gear shafts are enabled to rotate coaxially and synchronously and move along with the hinge to generate synchronous displacement, the 360-degree folding effect is achieved, and the folding stability is guaranteed.

In the present embodiment, the number of the 360 gear set hinges is two, and the connection process is realized by the intermediate link 40; correspondingly, the number of damping devices 20 is two and the number of spring rail devices 30 is four. It can be understood that, in other embodiments, the number of the 360 gear set hinges may be adjusted accordingly, and the number may be one or more structural arrangements, and may be adjusted to be used according to an actual use scenario and a size of the folding terminal device, so as to ensure that the 360 gear set hinges can provide sufficient folding supporting force to implement a folding function; similarly, the number of damping devices and spring track devices may be adjusted accordingly. Meanwhile, the synchronizing gear 14 in the present embodiment is a spur gear, and the synchronizing gear 14 in other embodiments may be any spur gear, helical gear, staggered bevel gear, etc., or may be a component similar to a gear; the track runner in the track main shaft 11 and the slide bar guide in the shaft-spanning slider may be in any combination of shapes, and are not limited to the combination of shapes in this embodiment.

Further, the synchronizing mechanism 15 includes a plurality of symmetrically disposed fixed gear plate sets 151 and gear plate sets 152, the fixed gear plate sets 151 and the gear plate sets 152 are pressed in an interlaced manner and disposed so as to form a plurality of through holes with coplanar central points in a horizontal state, the track main shaft 11 is installed in the through hole at the middle position, and the track main shaft 11 is a symmetric axis so as to form symmetrical and synchronous arrangement of the synchronizing mechanisms at the two opposite sides, thereby realizing a transmission function of synchronous engagement.

Furthermore, one end of the rail main shaft 11 and one end of the gear shaft 12 are provided with a snap spring 16, the snap spring 16 is disposed near the synchronizing gear 14, the other end of the gear shaft 12 is provided with a threaded sleeve 17, the snap spring 16 and the threaded sleeve 17 play roles of fastening and limiting, so that the rail main shaft 11 and the gear shaft 12 are mounted and fixed, and the threaded sleeve 17 is also used for connecting the damping device 20.

Specifically, when the mobile terminal is folded from 180 degrees to 360 degrees, the fixed gear set 151 on the right side of the terminal moves up counterclockwise by an acting force, the fixed gear set 151 on the right side drives the corresponding synchronous gear 14 and the gear shaft 12 to rotate and displace, the shaft-crossing slider 13 also moves up, and meanwhile, the left part of the mobile terminal generates a corresponding clockwise motion, so that the function of folding the mobile terminal from 180 degrees to 360 degrees is finally realized. Similarly, when the mobile terminal is folded from 180-0 °, the right fixed gear plate set 151 moves clockwise and downward by an acting force, and the shaft-crossing slider 13 also moves downward, wherein a left component of the mobile terminal generates a corresponding counterclockwise motion, and finally, a 180-0 ° folding function of the mobile terminal is realized.

Further, the damping device 20 includes a plurality of damping shafts 21, a first fixed gear plate group 22, a first gear plate group 23, a damping plate group 24, a fixed damping plate group 25 and an intermediate shaft member, the first fixed gear plate group 22 and the first gear plate group 23 are assembled on the damping shafts 21 in a staggered manner, the damping plate group 24 and the fixed damping plate group 25 are assembled on the damping shafts 21 in a staggered manner, the intermediate shaft member penetrates through the first fixed gear plate group, the first gear plate group, the damping plate group and the fixed damping plate group, shaft sleeves 26 are arranged at two end portions of the intermediate shaft member, and the shaft sleeves 26 are used for pressing and connecting the damping device with the hinge. The motion principle of the damping device 20 is the same as that of the synchronizing mechanism 15, the damping device 20 strengthens the structural strength of the hinge, and the friction force between parts generates damping to strengthen the hand feeling of the hinge.

Further, the number of the spring rail devices 30 is two and the two spring rail devices are respectively symmetrically arranged on two sides of the synchronous guiding device 10 and the damping device 20, the spring rail device 30 includes a rail sliding piece 31, a fixed rail 32 and a spring 33, the fixed rail 32 is connected with a hinge side plate 34, the rail sliding piece 31 is provided with a sliding groove 311, the fixed rail 32 is provided with a protruding portion 321, the protruding portion 321 is installed in the sliding groove 311, one end of the spring 33 is connected to the rail sliding piece 31, and the other end of the spring 33 is connected to the hinge side plate 34. Meanwhile, the hinge side plate 34 is provided with a clamping hole, one end of the fixed gear plate group 151, one end of the first fixed gear plate group 22 and one end of the fixed damper plate group 25 are provided with clamping portions, the clamping portions are mounted in the clamping hole, the hinge side plate 34 is rotated under the action of external force, and therefore the synchronous rotation of the synchronous guiding device 10 and the damping device 20 is achieved.

Further, the track device further comprises a supporting steel bar 50, a first hinge back plate 60 and a second hinge back plate 70, wherein one end of the track main shaft 11 and one end of the gear shaft 12 are mounted in the mounting hole of the supporting steel bar 50, and the first hinge back plate 60 and the second hinge back plate 70 are respectively located at the upper end and the lower end of the supporting steel bar 50.

Specifically, the method comprises the following steps: when the mobile terminal rotates by 0-360 degrees and 360-0 degrees, the track sliding piece 31 is locked by the fixed track 32 and only keeps one sliding freedom degree, the track sliding piece has the characteristic of automatic reset by the aid of the spring, the first hinge back plate 60 and the second hinge back plate 70 are constrained to be constant in the folding process of the hinge, and in the folding process of the hinge in-folding or out-folding process, the displacement generated by the track sliding piece in the sliding process of the fixed track due to tension or pushing force compensates for delta L generated when the hinge is changed in the states of 0 degrees, 180 degrees and 360 degrees. The mathematical principle of this process is shown in fig. 10, 11, 12, where the hinge is at 0 ° (fig. 11), L2L 1+ L2, Δ L a-B; when the hinge is at an angle of 360 ° (fig. 12), L2L 3+ L4, Δ L C-a.

Referring to fig. 10 to 14, a mobile terminal 200 includes the 360-gear set hinge, and further includes the first housing 210 and the second housing 220, wherein a first back plate and a second back plate are respectively and fixedly mounted on the back of the first housing and the back of the second housing, and the first back plate and the second back plate are fixedly connected to a corresponding rail sliding plate 31 forming a spring rail device. The mobile terminal can be a mobile phone, a tablet, a notebook computer or other terminal products folded by 360 degrees.

Furthermore, the top of the first back plate and the second back plate is provided with a first supporting plate and a second supporting plate which are used for supporting and installing the flexible screen, and the first supporting plate and the second supporting plate are fixedly connected with the first shell and the second shell respectively.

The utility model discloses a track in the track axle center of 360 gear train hinges is in quiescent condition for the hinge forever, and the synchronizing gear and the gear shaft of both sides all can rotate the same angle, make synchronizing gear and the coaxial synchronous rotation of gear shaft and produce synchronous displacement along with the hinge motion, realized 360 folding effects to can keep the straight effect of flat state of exhibition.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A 360 gear set hinge characterized by: the synchronous guide device comprises two synchronous guide devices, a damping device and a spring track device, wherein the two synchronous guide devices are respectively connected to two ends of the damping device, each synchronous guide device comprises a track main shaft, a gear shaft and a shaft crossing sliding block, the gear shafts are respectively and symmetrically arranged on two sides of the track main shaft, a synchronous gear and a synchronous mechanism are installed on the track main shaft and the gear shaft, a track sliding groove is formed in one end of the track main shaft, a sliding strip is arranged at the middle section of the shaft crossing sliding block, limiting holes are formed in two sides of the shaft crossing sliding block, the sliding strip is installed in the track sliding groove, and the limiting holes are installed on the gear shaft close to the shaft crossing sliding block.

2. A 360 gear-set hinge as claimed in claim 1, wherein: the synchronous mechanism comprises a plurality of fixed gear piece groups and gear piece groups which are symmetrically arranged, the fixed gear piece groups and the gear piece groups are staggered and arranged to form a plurality of through holes with coplanar central points in a horizontal state, the track main shaft is arranged in the through holes in the middle, and the track main shaft is a symmetrical shaft to enable the synchronous mechanisms on two opposite sides to be symmetrically and synchronously arranged.

3. A 360 gear-set hinge as claimed in claim 2 wherein: one end of the track main shaft and one end of the gear shaft are provided with clamp springs, the clamp springs are arranged close to the synchronous gear, and the other end of the gear shaft is provided with a threaded sleeve.

4. A 360 gear-set hinge as claimed in claim 3 wherein: the damping device comprises a plurality of damping shafts, a first fixed gear piece group, a first gear piece group, a damping piece group, a fixed damping piece group and an intermediate shaft piece, wherein the first fixed gear piece group and the first gear piece group are assembled on the damping shafts in a staggered mode, the damping piece group and the fixed damping piece group are assembled on the damping shafts in a staggered mode, the intermediate shaft piece penetrates through the first fixed gear piece group, the first gear piece group, the damping piece group and the fixed damping piece group, and a shaft sleeve is arranged at the end portion of the intermediate shaft piece.

5. A360 gear-set hinge as claimed in claim 4, wherein: the spring rail device comprises two rail sliding pieces, a fixed rail and a spring, wherein the two rail sliding pieces are symmetrically arranged on two sides of the synchronous guide device and the damping device respectively, the fixed rail is connected with a hinge side plate and is provided with a sliding groove, the fixed rail is provided with a protruding portion, the protruding portion is arranged in the sliding groove, one end of the spring is connected with the rail sliding pieces, and the other end of the spring is connected with the hinge side plate.

6. A360 gear-set hinge as claimed in claim 5, wherein: the hinge side plate is provided with a clamping hole, one end of the fixed gear piece group and one end of the first fixed gear piece group are provided with clamping portions, and the clamping portions are installed in the clamping holes.

7. The 360-gear set hinge of claim 6, wherein: still including supporting billet, first hinge backplate and second hinge backplate, the one end of track main shaft and gear shaft install in the mounting hole of supporting the billet.

8. A mobile terminal comprising a 360-gear set hinge according to any of claims 1-7, wherein: the spring rail device comprises a spring rail device and is characterized by further comprising a first shell and a second shell, wherein a first back plate and a second back plate are fixedly mounted on the back of the first shell and the back of the second shell respectively, and the first back plate and the second back plate are fixedly connected with corresponding rail sliding sheets forming the spring rail device.

9. A mobile terminal according to claim 8, characterized in that: the top of first backplate and second backplate is provided with first fagging and second fagging that is used for flexible screen to support and install, first fagging and second fagging respectively with first casing and second casing fixed connection.