CN216131230U - Transmission mechanism and flexible screen device - Google Patents
Transmission mechanism and flexible screen device Download PDFInfo
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- CN216131230U CN216131230U CN202121541058.9U CN202121541058U CN216131230U CN 216131230 U CN216131230 U CN 216131230U CN 202121541058 U CN202121541058 U CN 202121541058U CN 216131230 U CN216131230 U CN 216131230U
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Abstract
The embodiment of the utility model discloses a transmission mechanism and a flexible screen device, wherein the transmission mechanism comprises: the two first transmission assemblies are symmetrically arranged, the two meshed second transmission assemblies are positioned between the two first transmission assemblies, the two second transmission assemblies are respectively meshed with the two first transmission assemblies, and the two second transmission assemblies are asymmetrically arranged. Compare traditional drive mechanism, this drive mechanism's first drive assembly symmetry sets up, can practice thrift traditional drive mechanism and set up and the space that exceeds because of two meshed gear asymmetry to the first teeth of a cogwheel subassembly of symmetry setting can also improve production efficiency.
Description
Technical Field
The embodiment of the utility model relates to the technical field of display screens, in particular to a transmission mechanism and a flexible screen device.
Background
The flexible screen refers to a screen whose screen is bendable, and is bent by a driving mechanism of the flexible screen supporting device. Specifically, the flexible screen is attached to the flexible screen supporting device, and the transmission mechanism rotates to enable the flexible screen to be partially bent in the rotating area.
However, the existing rotating mechanism occupies a large space, so that the device with the flexible screen has a large base body and is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, embodiments of the present invention provide a transmission mechanism and a flexible screen device that occupy a small space.
A transmission mechanism comprising:
two first transmission assemblies which are symmetrically arranged;
the two second transmission assemblies are meshed with the two first transmission assemblies respectively, and the two second transmission assemblies are arranged asymmetrically.
In one embodiment, each of the second transmission assemblies has a first region engaged with the first transmission assembly, and a second region engaged with the other second transmission assembly, wherein a distance between the first region and the second region of one of the second transmission assemblies along a circumferential direction of the second transmission assembly is greater than a distance between the first region and the second region of the other of the second transmission assemblies along a circumferential direction of the other second transmission assembly.
In one embodiment, the distance between the first region and the second region of the second transmission assembly along the circumferential direction of the second transmission assembly is greater than the pitch between adjacent gear teeth in the first region or the second region.
In one embodiment, each of the second transmission assemblies includes a second gear, the second gears of the second transmission assemblies are engaged with each other through gear teeth, and the gear arrangement of the second gears is different.
In one embodiment, the teeth of one of the second gears are uniformly arranged, and the teeth of the other second gear are non-uniformly arranged.
In one embodiment, each of the second transmission assemblies further includes an auxiliary second gear disposed coaxially with the second gear, and the second gear of each of the second transmission assemblies has a different tooth arrangement from the auxiliary second gear.
In one embodiment, the auxiliary second gear of one of the second transmission assemblies is arranged symmetrically to the auxiliary second gear of the other of the second transmission assemblies.
In one embodiment, each of the second gear and the auxiliary second gear has a third region engaged with the first transmission assembly and a fourth region engaged with the second gear and the auxiliary second gear of another second transmission assembly, and a distance between the third region and the fourth region in a circumferential direction of the second gear is different from a pitch between adjacent gear teeth in the third region or the fourth region.
In one embodiment, the projections of the coaxial second gear, the third region and the fourth region of the auxiliary second gear in the axial direction do not completely overlap.
In one embodiment, the tooth pitches of the teeth in the third region and the fourth region of the second gear or the auxiliary second gear are the same;
or, the pitch between the teeth in the third region of the second gear or the auxiliary second gear is the same, the pitch between the teeth in the fourth region of the second gear or the auxiliary second gear is the same, and the pitch between the teeth in the third region of the second gear or the auxiliary second gear is different from the teeth in the fourth region.
In one embodiment, the second gear and the auxiliary second gear are connected through a connecting piece, and the connecting piece is coaxial with the axes of the two second gears.
In one embodiment, a mounting structure is arranged on one side of the first transmission assembly, which is far away from the second transmission assembly, and is used for mounting the transmission mechanism on an external structure.
In one embodiment, the first transmission assemblies further comprise a rotating shaft, and the rotating shaft is provided with a positioning area, so that the two first transmission assemblies are symmetrically arranged.
In one embodiment, the transmission mechanism further comprises a damping member, the first transmission assembly and the second transmission assembly respectively comprise a rotating shaft, the rotating shaft penetrates through the damping member, and the damping member is used for stabilizing the transmission mechanism at any position where the first transmission assembly and the second transmission assembly relatively rotate.
A flexible screen apparatus, comprising: a flexible screen, a first shell, a second shell and a flexible screen supporting component,
the first shell and the second shell are respectively arranged on two opposite sides of the flexible screen supporting assembly, and the flexible screen supporting assembly can be bent to enable the first shell and the second shell to rotate relatively;
the flexible screen is supported by the first housing, the second housing and the flexible screen support assembly;
the flexible screen supporting assembly comprises any one of the transmission mechanisms, and the transmission mechanism is used for transmitting the rotation of the first shell to the second shell so as to enable the second shell to rotate synchronously.
Compare traditional drive mechanism, this drive mechanism's first drive assembly symmetry sets up, can practice thrift traditional drive mechanism and set up and the space that exceeds because of two meshed gear asymmetry to the first teeth of a cogwheel subassembly of symmetry setting can also improve production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.
FIG. 1 is a schematic structural diagram of a flexible screen support assembly of a flexible screen assembly in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the transmission mechanism of the present invention;
FIG. 3 is a partial schematic structural view of a conventional transmission mechanism;
FIG. 4 is a schematic view of a portion of the transmission mechanism of the present invention;
FIG. 5 is a cross-sectional view of the transmission A-A shown in FIG. 4;
fig. 6 is a cross-sectional view of the transmission B-B shown in fig. 4.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. 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 be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
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 utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the flexible screen device includes: the flexible screen support assembly comprises a flexible screen, a flexible screen support assembly, a first shell and a second shell, wherein the first shell and the second shell are arranged on two sides of the flexible screen support assembly respectively. The flexible screen is supported by the first shell, the second shell and the flexible screen supporting component; the flexible screen support assembly 10 has a transmission mechanism 20 for transmitting the rotation of the first housing to the second housing so as to make the first housing and the second housing rotate synchronously, and make the flexible screen arranged thereon bend in the rotation area of the flexible screen support assembly.
Wherein, drive mechanism 20 includes: the two first transmission assemblies 100 are symmetrically arranged, the two second transmission assemblies 200 are meshed with each other, the two second transmission assemblies 200 are located between the two first transmission assemblies 100 and are meshed with each other, the two second transmission assemblies 200 are respectively meshed with the two first transmission assemblies 100, and the two second transmission assemblies 200 are asymmetrically arranged.
As shown in fig. 3, compared with the conventional transmission mechanism, the first transmission assemblies of the transmission mechanism are symmetrically arranged, so that the extra space (the space between two dotted lines in fig. 3) of the conventional transmission mechanism due to the asymmetrical arrangement of the two meshed gears can be saved, and the production efficiency can be improved due to the symmetrically arranged first gear tooth assemblies.
In one embodiment, as shown in FIG. 2, the first transmission assembly 100 has a first gear 110, and a portion of the circumference of the first gear 110 has gear teeth. The second transmission assembly 200 has a first region 201 engaged with the first transmission assembly 100, and a second region 202 engaged with the other second transmission assembly 200, wherein a distance between the first region 201 and the second region 202 of one second transmission assembly 200 along a circumferential direction of the second transmission assembly 200 is greater than a distance between the first region 201 and the second region 202 of the other second transmission assembly 200 along the circumferential direction of the other second transmission assembly 200. The first gear 110 may be a driving gear or a driven gear, and in this embodiment, is a driving gear. In other embodiments, the first gear may have gear teeth on its periphery.
Because the flexible screen device does not need to be bent all around in the actual use process, the flexible screen device is bent within a limited angle range, the flexible screen device with the transmission mechanism 20 is provided with gear teeth on the partial periphery of the first gear 110 to meet the requirement of the bending angle, and other peripheral parts are not provided with the gear teeth, so that the space of the part is saved. And, since the second gear tooth assembly has the first region 201 and the second region 202, and the distance between the first region 201 and the second region 202 along the circumferential direction of the second transmission assembly is different from the pitch between the adjacent gear teeth of the first region 201 or the second region 202, the second transmission assembly can be meshed with the first transmission assembly and the second transmission assembly in a limited volume, and the space of the flexible screen device is further reduced.
In one embodiment, the area of the first gear 110 at the bottom of the first housing or the second housing of the flexible screen device is not provided with teeth, so that the distance from the teeth of the first gear to the first housing or the second housing is not more than the distance from the area of the first gear without teeth to the first housing or the second housing. This enables further space savings.
In one embodiment, the first transmission assembly 100 further includes a rotating shaft having a positioning region 120, so that the two first gears 110 are symmetrically disposed. Specifically, in the present embodiment, the positioning area 120 is a plane area, and the plane areas of the two rotating shafts are arranged in parallel, so that the first gear 110 can be quickly and symmetrically installed. Wherein each spindle has two locating areas 120 for quick mounting of the spindles. In other embodiments, the positioning region 120 may have other structures, such as a raised structure.
The first transmission assembly 100 is provided with a mounting structure 130 at a side thereof away from the second transmission assembly 200 for mounting the transmission mechanism to an external structure, i.e. a region of the first gear 110 of the first transmission assembly 100 where no gear teeth are provided is provided with the mounting structure 130. Specifically, in this embodiment, a mounting plate extends from a region of the first gear 110 where no gear is disposed, and a mounting hole is disposed on the mounting plate for mounting. In this embodiment, combine traditional drive mechanism and mounting structure, all set up on first drive assembly, further compress the space.
Referring to fig. 4 to 6, in one embodiment, each of the second transmission assemblies 200 includes a second gear 210, the second gear 210 has a third region 203 engaged with the first gear 110 and a fourth region 204 engaged with another set of the second gears 210, and a distance between the third region 203 and the fourth region 204 along a circumferential direction of the second gear is different from a pitch between adjacent gear teeth in the third region 203 or the fourth region 204. The second gears 210 of the second transmission assemblies 200 are engaged with each other through gear teeth, and the tooth arrangement of the second gears 210 is different. It should be noted that, when the second transmission assembly has only the second gear 210, the first region 201 of the second transmission assembly includes only the third region 203 of the second gear 210, and the second region 202 of the second transmission assembly includes only the fourth region 204 of the second gear 210.
In this embodiment, the two first gears 100 on the left and right sides are symmetrically disposed, and if the two middle second gears 210 are also symmetrically disposed, the two middle second gears 210 will interfere with each other and be locked during meshing transmission, so that the second gears cannot rotate continuously. Therefore, the teeth of the middle two second gears 210 of the present embodiment are asymmetrically arranged.
In one embodiment, the teeth of two adjacent second gears 210 engaged with each other are arranged differently.
In one embodiment, as shown in fig. 5, in two adjacent second gears 210 engaged with each other, the angle R formed by the teeth of one second gear 210 arranged along the circumferential direction of the second gear 210 is larger than the angle R formed by the teeth of the other second gear 210 arranged along the circumferential direction of the other second gear 210.
In one embodiment, the teeth of one second gear 210 are non-uniformly arranged and the teeth of the other second gear 210 are uniformly arranged in two adjacent second gears 210 engaged with each other.
In one embodiment, in two adjacent second gears 210 engaged with each other, a distance between the third region 203 and the fourth region 204 of one second gear 210 along the circumferential direction of the second gear 210 is greater than a distance between the third region 203 and the fourth region 204 of the other second gear 210 along the circumferential direction of the other second gear 210.
In one embodiment, the distance between the third region 203 and the fourth region 204 of one second gear 210 in the circumferential direction of the second gear is greater than the distance between adjacent teeth in the third region 203 or the fourth region 204 in the circumferential direction of the second gear 210 in two adjacent second gears 210 which are meshed with each other; the distance between the third region 203 and the fourth region 204 of the other second gear 210 along the circumferential direction of the other second gear is equal to the distance between adjacent teeth in the third region 203 or the fourth region 204 along the circumferential direction of the other second gear 210.
In two adjacent second gears 210 which are meshed with each other, since the distance between the third region 203 and the fourth region 204 of one of the second gears 210 is greater than the distance between the third region 203 and the fourth region 204 of the other second gear, when the gears are meshed for transmission, a situation that the teeth of the other second gear cannot be smoothly meshed with the gap between the third region 203 and the fourth region 204 of the one of the second gears due to the excessively large distance between the third region 203 and the fourth region 204 of the one of the second gears may occur, and transmission may fail.
To solve the above problem, each of two adjacent second gears 210 engaged with each other is connected to an auxiliary second gear 230 through a respective connecting member 220. Each second gear 210 is coaxial with a corresponding auxiliary second gear 230. The auxiliary second gear 230 has a third region 203 engaged with the first gear 110 and a fourth region 204 engaged with another auxiliary second gear 230, and the second gear 210 of each second transmission assembly 200 has a different tooth arrangement from the auxiliary second gear 230. It should be noted that the third region 203 of the second gear 210 and the third region 203 of the auxiliary second gear 220 in one second transmission assembly 200 form the first region 201 of the second transmission assembly 200, and the fourth region 204 of the second gear 210 and the fourth region 204 of the auxiliary second gear 220 form the second region 202 of the second transmission assembly 200.
In one embodiment, the distance between the first region 201 and the second region 202 of a second transmission assembly 210 along the circumferential direction of the second transmission assembly 200 is greater than the pitch between adjacent gear teeth in the first region 201 or the second region 202. Adjacent gear teeth in the first region 201 or the second region 202 are gear teeth of the second gear 210 and the auxiliary second gear 230 that are coaxial and are circumferentially adjacent, and the adjacent two gear teeth may be both located on the second gear 210, or may be located on the second gear 210 and the auxiliary second gear 230, respectively.
In one embodiment, the teeth of the third region 203 of each second gear 210 axially overlap the teeth of the third region 203 of the coaxial auxiliary second gear 230, and the teeth of the fourth region 204 of each second gear 210 are axially offset from the teeth of the fourth region 204 of the coaxial auxiliary second gear 230. The coaxial auxiliary second gear 230 of each second gear is symmetrically arranged with the other auxiliary second gear 230. Since the transmission engagement of the two auxiliary second gears is complementary to the transmission engagement of the two second gears, the transmission can be performed smoothly.
In other embodiments, the gear teeth of the coaxial second gear 210 and the third region 203 of the auxiliary second gear 230 may be staggered.
In one embodiment, a second gear 210 or an auxiliary second gear 230 is located in the third region 203 and the fourth region 204, and the tooth pitch between the teeth is the same, so that the assembly and the production are convenient.
In one embodiment, the pitch between the teeth in the third region 203 of the second gear 210 or the auxiliary second gear 230 is the same, the pitch between the teeth in the fourth region 204 of the second gear 210 or the auxiliary second gear 230 is the same, and the pitch between the teeth in the third region 203 of the second gear 210 or the auxiliary second gear 230 is different from the pitch between the teeth in the fourth region 204. For example, the pitch of the adjacent teeth of the second gear 210 and the auxiliary second gear 230 located in the third region 203 are larger than the pitch of the adjacent teeth of the fourth region 204, so as to further reduce the volume of the transmission mechanism.
It should be noted that, as shown in fig. 1, in an embodiment, the transmission mechanism further includes a damping member 300, the rotating shafts of the first gear 110 and the second gear 210 penetrate through the damping member 300, the rotating shaft of the first gear 110 is used for connecting the flexible screen supporting assembly main body, so that the second gear 210 is fixedly installed with the flexible screen supporting assembly main body through the damping member 300 and the first gear 110, and the damping member 300 is used for stabilizing the transmission mechanism at any position where the first transmission assembly and the second transmission assembly relatively rotate. In this embodiment, the damping members 300 are disposed at two ends of the first gear 110 and the second gear 210, wherein the first gear 110 is one, and two end surfaces of the first gear 110 are flush with the end surfaces of the second gear 210 corresponding thereto, so as to be better installed in cooperation with the damping members 300.
It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model as defined by the appended claims.
Claims (15)
1. A transmission mechanism, comprising:
two first transmission assemblies which are symmetrically arranged;
the two second transmission assemblies are meshed with the two first transmission assemblies respectively, and the two second transmission assemblies are arranged asymmetrically.
2. The drive mechanism as recited in claim 1, wherein each of the second drive components has a first region engaged with the first drive component and a second region engaged with another of the second drive components, wherein a distance between the first region and the second region of one of the second drive components in a circumferential direction of the second drive component is greater than a distance between the first region and the second region of another of the second drive components in a circumferential direction of the other second drive component.
3. The drive mechanism as recited in claim 2, wherein a distance between the first region and the second region of the second drive assembly along a circumference of the second drive assembly is greater than a pitch between adjacent gear teeth located within the first region or the second region.
4. The transmission mechanism as claimed in claim 1, wherein each of the second transmission assemblies includes a second gear, the second gears of the second transmission assemblies are engaged with each other by gear teeth, and the gear arrangement of the second gears is different.
5. The transmission mechanism as recited in claim 4, wherein the teeth of one of the second gears are uniformly arranged and the teeth of the other second gear are non-uniformly arranged.
6. The transmission mechanism as recited in claim 4, wherein each of the second transmission assemblies further comprises an auxiliary second gear disposed coaxially with the second gear, the second gear of each of the second transmission assemblies having a different gear arrangement than the auxiliary second gear.
7. The transmission mechanism as recited in claim 6, wherein said auxiliary second gear of one of said second transmission assemblies is disposed symmetrically with said auxiliary second gear of another of said second transmission assemblies.
8. The transmission mechanism according to claim 6, wherein each of the second gear and the auxiliary second gear has a third region that meshes with the first transmission component and a fourth region that meshes with the second gear and the auxiliary second gear of another second transmission component, and a distance between the third region and the fourth region in a circumferential direction of the second gear is different from a pitch between adjacent gear teeth in the third region or the fourth region.
9. The transmission mechanism according to claim 8, wherein projections of the third and fourth regions of the coaxial second gear and the auxiliary second gear in the axial direction do not completely overlap.
10. The transmission mechanism as claimed in claim 8, wherein the teeth pitch of the third and fourth regions of the second or auxiliary second gear is the same;
or, the pitch between the teeth in the third region of the second gear or the auxiliary second gear is the same, the pitch between the teeth in the fourth region of the second gear or the auxiliary second gear is the same, and the pitch between the teeth in the third region of the second gear or the auxiliary second gear is different from the teeth in the fourth region.
11. The transmission mechanism according to claim 6, wherein the second gear and the auxiliary second gear are connected by a connecting member, and the connecting member is coaxial with the axes of the two second gears.
12. The transmission mechanism as claimed in claim 1, wherein a mounting structure is provided on a side of the first transmission assembly remote from the second transmission assembly for mounting the transmission mechanism to an external structure.
13. The transmission mechanism as claimed in claim 1, wherein the first transmission assembly further comprises a shaft having a positioning region to allow the two first transmission assemblies to be symmetrically disposed.
14. The transmission mechanism according to claim 1, further comprising a damping member, wherein the first transmission assembly and the second transmission assembly respectively comprise a rotating shaft, the rotating shaft penetrates through the damping member, and the damping member is used for stabilizing the transmission mechanism at any position where the first transmission assembly and the second transmission assembly relatively rotate.
15. A flexible screen apparatus, comprising: a flexible screen, a first shell, a second shell and a flexible screen supporting component,
the first shell and the second shell are respectively arranged on two opposite sides of the flexible screen supporting assembly, and the flexible screen supporting assembly can be bent to enable the first shell and the second shell to rotate relatively;
the flexible screen is supported by the first housing, the second housing and the flexible screen support assembly;
a flexible screen support assembly comprising a transmission mechanism as claimed in any one of claims 1 to 9 for transmitting rotation of the first housing to the second housing for synchronous rotation of the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541058.9U CN216131230U (en) | 2021-07-07 | 2021-07-07 | Transmission mechanism and flexible screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541058.9U CN216131230U (en) | 2021-07-07 | 2021-07-07 | Transmission mechanism and flexible screen device |
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| Publication Number | Publication Date |
|---|---|
| CN216131230U true CN216131230U (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121541058.9U Active CN216131230U (en) | 2021-07-07 | 2021-07-07 | Transmission mechanism and flexible screen device |
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| CN (1) | CN216131230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877566A (en) * | 2023-09-01 | 2023-10-13 | 荣耀终端有限公司 | Synchronous mechanism and foldable electronic equipment |
-
2021
- 2021-07-07 CN CN202121541058.9U patent/CN216131230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877566A (en) * | 2023-09-01 | 2023-10-13 | 荣耀终端有限公司 | Synchronous mechanism and foldable electronic equipment |
| CN116877566B (en) * | 2023-09-01 | 2023-11-17 | 荣耀终端有限公司 | Synchronous mechanism and foldable electronic equipment |
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