CN211018886U - Folding mechanism for folding screen - Google Patents
Folding mechanism for folding screen Download PDFInfo
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- CN211018886U CN211018886U CN201922158819.1U CN201922158819U CN211018886U CN 211018886 U CN211018886 U CN 211018886U CN 201922158819 U CN201922158819 U CN 201922158819U CN 211018886 U CN211018886 U CN 211018886U
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Abstract
The utility model relates to a folding mechanism for a folding screen, which is provided with a fixed plate; a first rotating shaft and a second rotating shaft are rotatably arranged on the fixing plate; the first rotating shaft and the second rotating shaft are arranged in parallel; a first helical gear is arranged at one end of the first rotating shaft close to the fixed plate, and a second helical gear is arranged at one end of the second rotating shaft close to the fixed plate; a third bevel gear is also rotatably arranged on the fixed plate; the third helical gear is positioned between the first helical gear and the second helical gear, and the rotation axis of the first helical gear is parallel to that of the second helical gear; the first helical gear and the third helical gear form staggered shaft transmission fit, and the third helical gear and the second helical gear form staggered shaft transmission fit; the first rotating shaft is provided with a first rotating plate which forms circumferential transmission fit with the first rotating shaft, and the second rotating shaft is provided with a second rotating plate which forms circumferential transmission fit with the second rotating shaft. The utility model discloses owing to reduced gear use quantity, consequently make the structure compacter, provide the condition for further reducing the overall dimension of folding screen product.
Description
Technical Field
The utility model relates to a folding field of flexible folding screen, in particular to folding mechanism for folding screen.
Background
With the continuous development of smart phones, people have higher and higher requirements on the use scenes and functions of the smart phones. Especially, when the flexible screen appears, the smart phone can obtain larger screen display, so that the smart phone can be used as a tablet computer to a certain extent. More and more cell phone manufacturers are beginning to develop folding screen cell phones.
The middle folding rotating shaft of the existing folding screen mobile phone is of a mechanical structure, the effect of a modern soft screen is fused, and the soft screen can be bent to a certain degree without being damaged.
According to the scheme, the part of the structure of the central rotating shaft is mostly in a shaft pin type connection or a gear realizes track movement and the like. The gear transmission mode often needs to rely on a plurality of linkage gears (at least 4) to realize the folding cooperation. Because the existing gear transmission is realized by a straight-tooth gear, the diameter of the gear directly influences the size of a product in the later period. In addition, the existing gears are all obtained by MIM firing or hobbing machine machining within a certain size range, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a folding mechanism for folding screen that the structure is small and exquisite compact, gear drive intensity is high, low in manufacturing cost.
Realize the utility model discloses the technical scheme of purpose is: having a fixed plate; a first rotating shaft and a second rotating shaft are rotatably arranged on the fixing plate; the first rotating shaft and the second rotating shaft are arranged in parallel; a first helical gear is arranged at one end of the first rotating shaft close to the fixed plate, and a second helical gear is arranged at one end of the second rotating shaft close to the fixed plate; a third bevel gear is also rotatably arranged on the fixed plate; the third helical gear is positioned between the first helical gear and the second helical gear, and the rotation axis of the first helical gear is parallel to that of the second helical gear; the first helical gear and the third helical gear form staggered shaft transmission fit, and the third helical gear and the second helical gear form staggered shaft transmission fit; the first rotating shaft is provided with a first rotating plate which forms circumferential transmission fit with the first rotating shaft, and the second rotating shaft is provided with a second rotating plate which forms circumferential transmission fit with the second rotating shaft.
Meanwhile, the device is also provided with a sliding block and a return spring; the sliding block is provided with a through hole for the first rotating shaft and the second rotating shaft to pass through; the sliding block is arranged on the first rotating shaft and the second rotating shaft in a sliding mode; the first rotating plate and the second rotating plate are positioned between the fixed plate and the sliding block;
the first rotating plate comprises a first transmission part and a first connecting part which are integrally designed; the first transmission part and the first rotating shaft form circumferential transmission fit connection, and the first connecting part is used for connecting one side of the folding screen; the second rotating plate comprises a second transmission part and a second connecting part which are integrally designed; the second transmission part and the second rotating shaft form circumferential transmission fit connection, and the second connecting part is used for connecting the other side of the folding screen;
the first transmission part is provided with first convex teeth distributed along the circumference of the rotating axis of the first rotating shaft, and the second transmission part is provided with second convex teeth distributed along the circumference of the rotating axis of the second rotating shaft;
one side of the sliding block facing the fixed plate is provided with a first groove circumferentially distributed along the rotating axis of the first rotating shaft and a second groove circumferentially distributed along the rotating axis of the second rotating shaft; the first convex teeth are correspondingly matched with the first grooves, and the second convex teeth are correspondingly matched with the second grooves;
a first limiting part is arranged at one end of the first rotating shaft, which is far away from the first helical gear, and a second limiting part is arranged at one end of the second rotating shaft, which is far away from the second helical gear; the first rotating shaft and the second rotating shaft are both sleeved with return springs; two ends of a return spring positioned on the first rotating shaft respectively act on the sliding block and the first limiting part; two ends of a return spring positioned on the second rotating shaft respectively act on the sliding block and the second limiting part; the first convex teeth can overcome the compression force of the corresponding return spring to slide into the adjacent first grooves along with the rotation of the first transmission part; the second convex teeth can overcome the compression force of the corresponding return spring to slide into the adjacent second grooves along with the rotation of the second transmission part.
One end of the fixed plate close to the sliding block is provided with a limiting bracket used for limiting the positions of the first rotating plate and the second rotating plate on the first rotating shaft and the second rotating shaft respectively; the limiting bracket is positioned between the first bevel gear and the first transmission part and also positioned between the second bevel gear and the second transmission part.
The limiting bracket is provided with a guide block; the guide block is positioned between the first rotating shaft and the second rotating shaft; and the sliding block is provided with a guide groove correspondingly matched with the guide block.
Meanwhile, the device is also provided with a guide rod; the guide rod is arranged in parallel with the first rotating shaft; the guide rod is positioned between the first rotating shaft and the second rotating shaft; the sliding block is provided with a through hole for the guide rod to pass through; one end of the guide rod passes through the corresponding through hole and then is connected with the fixed plate, and the other end of the guide rod is provided with a third limiting part; the guide rod is sleeved with a return spring, and two ends of the return spring respectively act on the sliding block and the third limiting part.
The first transmission part and the second transmission part are provided with flat holes which penetrate through; the part of the first rotating shaft, which is in circumferential transmission fit with the first transmission part, is a flat rod in transmission fit with a flat hole of the first transmission part; the part of the second rotating shaft, which is in circumferential transmission fit with the second transmission part, is a flat rod in transmission fit with a flat hole of the second transmission part. Of course, in order to facilitate assembly, the first rotating shaft from the first limiting part to the limiting bracket can be designed into a flat rod, and the second rotating shaft is similar to the flat rod.
The first limiting part is a clamp spring clamped on the first rotating shaft; the second limiting part is a clamp spring clamped on the second rotating shaft.
The first transmission part is cylindrical and is coaxial with the first rotating shaft; one end of the first transmission part, which is close to the sliding block, is provided with a plurality of first convex teeth which are uniformly distributed along the circumference of the rotating axis of the first rotating shaft and extend along the rotating axis of the first rotating shaft; the second transmission part is cylindrical and is coaxial with the second rotating shaft; one end of the second transmission part close to the sliding block is provided with a plurality of second convex teeth which are uniformly distributed along the circumference of the rotating axis of the second rotating shaft and extend along the rotating axis of the first rotating shaft;
the through hole for the first rotating shaft to pass through is positioned on one side edge of the first rotating plate to form a plurality of first grooves which are uniformly distributed along the circumference of the rotating axis of the first rotating shaft and extend along the rotating axis of the first rotating shaft; the through hole for the second rotating shaft to pass through is positioned on one side edge of the second rotating plate to form a plurality of second grooves which are uniformly distributed along the circumference of the rotating axis of the second rotating shaft and extend along the rotating axis of the second rotating shaft; the first convex teeth are matched and meshed with the first grooves; the second convex tooth is matched and meshed with the second groove.
When the first bevel gear rotates, the third bevel gear drives the second bevel gear to rotate towards the opposite rotation direction of the first bevel gear.
One end of the first rotating shaft, which is close to the fixed plate, is formed into a first helical gear through roll forming, and one end of the second rotating shaft, which is close to the fixed plate, is formed into a second helical gear through roll forming; and a third bevel gear obtained by roll forming is rotatably arranged on the fixed plate.
The utility model discloses has positive effect: (1) the utility model discloses a drive fit of first helical gear, second helical gear and third helical gear can realize the folding linkage of folding screen, owing to reduced the quantity of linkage gear, consequently spatial layout is compacter, provides the condition for further reducing the overall dimension of folding screen product.
(2) The utility model discloses a mutually supporting of first dogtooth, first recess, second dogtooth, second recess, slider and reset spring has realized that first commentaries on classics board and second change the position of board and keep the effect (embody folding screen in fact, can realize the position locking when folding to certain position promptly for folding screen).
(3) The utility model discloses well spacing support can realize changeing the position of board to first commentaries on classics board and second and inject, guarantees that first commentaries on classics board, second change the hookup location of board and folding screen stable to improve the result of use of later stage product.
(4) The utility model discloses a cooperation of guide block and guide way can further carry out gliding guiding orientation to the slider, guarantees the accurate nature of overall structure.
(5) The utility model discloses a guide arm can further carry out gliding guiding orientation to the slider again, further guarantees the accurate nature of overall structure.
(6) The utility model discloses the design of well flat hole and flat pole can enough make things convenient for the circumference transmission cooperation, makes things convenient for the assembly again.
(7) The utility model discloses well first dogtooth, second dogtooth, first recess and the distribution design of second recess can realize the position locking of a plurality of angles of folding screen.
(8) The utility model discloses well first helical gear, second helical gear and third helical gear all obtain through the roll forming technology, have changed the gear among the folding mechanism for the current folding screen and need adopt MIM to fire or the current situation of gear hobbing machine tooling, greatly reduced manufacturing cost.
(9) Under the condition of the same size as the existing folding mechanism, the staggered shaft transmission matching structure of the first helical gear, the second helical gear and the third helical gear in the utility model can effectively improve the strength of the first helical gear, the second helical gear and the third helical gear, and has better contact ratio; and simultaneously, the number of teeth participating in meshing is increased, and the broken tooth strength of the gear is greatly improved.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic diagram of a gear transmission in a conventional folding screen;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a top view of the present invention;
FIG. 4 is a schematic diagram of the transmission fit of the first helical gear, the second helical gear and the third helical gear of the present invention;
fig. 5 is a schematic structural view of the first rotating shaft of the present invention;
fig. 6 is a schematic structural view of a second rotating shaft in the present invention;
fig. 7 is a schematic structural view of a first rotating plate of the present invention;
fig. 8 is a schematic structural view of a second rotating plate according to the present invention;
fig. 9 is a schematic structural view of the sliding block of the present invention;
fig. 10 is a schematic structural view of the middle limit bracket of the present invention.
Detailed Description
Referring to fig. 1, the folding mechanism for the existing folding screen realizes linkage by four gears. As shown in fig. 1, when the left screen is pulled by hand, the gears from left to right are sequentially communicated, and when the communication is transmitted to the rightmost gear (which drives the other right screen), the left screen and the right screen can be closed and opened. Due to the arrangement of the four gears, the size of the whole folding part is determined by the sizes of the four gears.
Referring to fig. 2 to 10, the present invention has a fixing plate 1; a first rotating shaft 2 and a second rotating shaft 3 are rotatably arranged on the fixing plate 1; the first rotating shaft 2 and the second rotating shaft 3 are arranged in parallel; one end of the first rotating shaft 2 close to the fixed plate 1 is formed into a first bevel gear 21 through roll forming, and one end of the second rotating shaft 3 close to the fixed plate 1 is formed into a second bevel gear 31 through roll forming; a third bevel gear 4 obtained by roll forming is also rotatably arranged on the fixed plate 1; the third bevel gear 4 is positioned between the first bevel gear 21 and the second bevel gear 31, and the rotation axis of the first bevel gear 21 is parallel to the rotation axis of the second bevel gear 31; the first helical gear 21 and the third helical gear 4 form staggered shaft transmission fit, and the third helical gear 4 and the second helical gear 31 form staggered shaft transmission fit; the first rotating shaft 2 is provided with a first rotating plate 5 which forms circumferential transmission fit with the first rotating shaft, and the second rotating shaft 3 is provided with a second rotating plate 6 which forms circumferential transmission fit with the second rotating shaft. When the first bevel gear 21 rotates, the third bevel gear 4 can drive the second bevel gear 31 to rotate in the opposite direction to the first bevel gear 21.
The device is also provided with a slide block 7 and a return spring 8; the slide block 7 is provided with a through hole for the first rotating shaft 2 and the second rotating shaft 3 to pass through; the sliding block 7 is arranged on the first rotating shaft 2 and the second rotating shaft 3 in a sliding mode; the first rotating plate 5 and the second rotating plate 6 are positioned between the fixed plate 1 and the sliding block 7;
the first rotating plate 5 comprises a first transmission part 51 and a first connecting part 52 which are integrally designed; the first transmission part 51 and the first rotating shaft 2 form circumferential transmission fit connection, and the first connecting part 52 is used for connecting one side of the folding screen; the second rotating plate 6 comprises a second transmission part 61 and a second connecting part 62 which are integrally designed; the second transmission part 61 and the second rotating shaft 3 form circumferential transmission fit connection, and the second connecting part 62 is used for connecting the other side of the folding screen;
the first transmission part 51 is cylindrical and coaxial with the first rotating shaft 2; one end of the first transmission part 51 close to the slide block 7 is provided with a plurality of first convex teeth 511 which are uniformly distributed along the circumference of the rotation axis of the first rotating shaft 2 and extend along the rotation axis of the first rotating shaft 2; the second transmission part 61 is cylindrical and coaxial with the second rotating shaft 3; one end of the second transmission part 61 close to the slide block 7 is provided with a plurality of second convex teeth 611 which are uniformly distributed along the circumference of the rotation axis of the second rotating shaft 3 and extend along the rotation axis of the first rotating shaft 2;
a plurality of first grooves 71 which are uniformly distributed along the circumference of the rotating axis of the first rotating shaft 2 and extend along the rotating axis of the first rotating shaft 2 are formed on one side edge of the first rotating plate 5 by the through hole for the first rotating shaft 2 to pass through; the through hole for the second rotating shaft 3 to pass through is positioned on one side edge of the second rotating plate 6 to form a plurality of second grooves 72 which are uniformly distributed along the circumference of the rotating axis of the second rotating shaft 3 and extend along the rotating axis of the second rotating shaft 3; the first convex tooth 511 is matched and meshed with the first groove 71; the second tooth 611 is in mating engagement with the second groove 72.
A first limiting part 22 is arranged at one end of the first rotating shaft 2, which is far away from the first bevel gear 21, and a second limiting part 32 is arranged at one end of the second rotating shaft 3, which is far away from the second bevel gear 31; the first rotating shaft 2 and the second rotating shaft 3 are both sleeved with a return spring 8; two ends of a return spring 8 positioned on the first rotating shaft 2 respectively act on the sliding block 7 and the first limiting part 22; two ends of a return spring 8 positioned on the second rotating shaft 3 respectively act on the sliding block 7 and the second limiting part 32; the first convex teeth 511 can overcome the compression force of the corresponding return spring 8 to slide into the adjacent first grooves 71 along with the rotation of the first transmission part 51; the second teeth 611 slide into the adjacent second grooves 72 against the compression force of their corresponding return springs 8 with the rotation of the second transmission part 61.
One end of the fixed plate 1 close to the sliding block 7 is provided with a limiting bracket 11 for limiting the positions of the first rotating plate 5 and the second rotating plate 6 on the first rotating shaft 2 and the second rotating shaft 3 respectively; the limiting bracket 11 is located between the first bevel gear 21 and the first transmission part 51, and also located between the second bevel gear 31 and the second transmission part 61.
The limiting bracket 11 is provided with a guide block 111; the guide block 111 is positioned between the first rotating shaft 2 and the second rotating shaft 3; the slider 7 is provided with a guide groove 73 correspondingly matched with the guide block 111.
Also has a guide rod 9; the guide rod 9 is arranged in parallel with the first rotating shaft 2; the guide rod 9 is positioned between the first rotating shaft 2 and the second rotating shaft 3; the sliding block 7 is provided with a through hole for the guide rod 9 to pass through; one end of the guide rod 9 passes through the corresponding through hole and then is connected with the fixed plate 1, and the other end is provided with a third limiting part 91; the guide rod 9 is sleeved with a return spring 8, and two ends of the return spring 8 act on the sliding block 7 and the third limiting part 91 respectively.
The first transmission part 51 and the second transmission part 61 are both provided with flat holes which penetrate through; a flat rod in transmission fit with the flat hole of the first transmission part 51 is arranged between the first limiting part 22 and the limiting bracket 11 of the first rotating shaft 2; the second rotating shaft 3 is a flat rod in transmission fit with the flat hole of the second transmission part 61 from the second limiting part 32 to the limiting bracket 11.
The first limiting part 22 is a clamp spring clamped on the first rotating shaft 2; the second limiting portion 32 is a clamp spring clamped on the second rotating shaft 3.
The working process of the utility model is as follows:
when the folding screen which is connected with the first rotating plate 5 in a matched mode is turned over, the first helical gear 21 on the first rotating shaft 2 can be driven to rotate, the first helical gear 21 can drive the third helical gear 4 to rotate, the third helical gear 4 can drive the second helical gear 31 to rotate in the direction opposite to that of the first helical gear 21, the second helical gear 31 can drive the second rotating plate 6 to rotate, and meanwhile, the folding screen which is connected with the second rotating plate 6 in a matched mode is driven to rotate. The effect that appears at this moment is that the both sides of folding screen are closed each other or are opened each other.
During the folding process, the first teeth 511 and the first grooves 71 of the first rotating plate 5 are continuously engaged, and the second teeth 611 and the second grooves 72 of the second rotating plate 6 are continuously engaged. When the address is folded, due to the action of the return spring, the first groove 71 and the second groove 72 of the sliding block 7 are engaged and locked with the first convex tooth 511 and the second convex tooth 611 respectively, so that the folding screen is locked at the folding angle.
If the folding needs to be continued, the first convex tooth 511 and the second convex tooth 611 can cause the sliding block 7 to overcome the compression force of the return spring 8 under the action of the folding force, disengage from the current first groove 71 and the current second groove 72, and enter the adjacent first groove 71 and the adjacent second groove 72, and the process is repeated continuously until the folding stops.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The folding mechanism for the folding screen is provided with a fixing plate (1); the method is characterized in that: a first rotating shaft (2) and a second rotating shaft (3) are rotatably arranged on the fixed plate (1); the first rotating shaft (2) and the second rotating shaft (3) are arranged in parallel; a first helical gear (21) is arranged at one end of the first rotating shaft (2) close to the fixed plate (1), and a second helical gear (31) is arranged at one end of the second rotating shaft (3) close to the fixed plate (1); a third bevel gear (4) is also rotatably arranged on the fixed plate (1); the third helical gear (4) is positioned between the first helical gear (21) and the second helical gear (31), and the rotating axis of the first helical gear (21) is parallel to the rotating axis of the second helical gear (31); the first helical gear (21) and the third helical gear (4) form staggered shaft transmission fit, and the third helical gear (4) and the second helical gear (31) form staggered shaft transmission fit; the first rotating shaft (2) is provided with a first rotating plate (5) which is in circumferential transmission fit with the first rotating shaft, and the second rotating shaft (3) is provided with a second rotating plate (6) which is in circumferential transmission fit with the second rotating shaft.
2. A folding mechanism for a folding screen according to claim 1, characterized in that: the device is also provided with a slide block (7) and a return spring (8); the sliding block (7) is provided with a through hole for the first rotating shaft (2) and the second rotating shaft (3) to pass through; the sliding block (7) is arranged on the first rotating shaft (2) and the second rotating shaft (3) in a sliding mode; the first rotating plate (5) and the second rotating plate (6) are positioned between the fixed plate (1) and the sliding block (7);
the first rotating plate (5) comprises a first transmission part (51) and a first connecting part (52) which are integrally designed; the first transmission part (51) and the first rotating shaft (2) form circumferential transmission fit connection, and the first connecting part (52) is used for connecting one side of the folding screen; the second rotating plate (6) comprises a second transmission part (61) and a second connecting part (62) which are integrally designed; the second transmission part (61) and the second rotating shaft (3) form circumferential transmission fit connection, and the second connecting part (62) is used for connecting the other side of the folding screen;
the first transmission part (51) is provided with first convex teeth (511) which are distributed along the circumference of the rotating axis of the first rotating shaft (2), and the second transmission part (61) is provided with second convex teeth (611) which are distributed along the circumference of the rotating axis of the second rotating shaft (3);
one side of the sliding block (7) facing the fixed plate (1) is provided with a first groove (71) which is circumferentially distributed along the rotating axis of the first rotating shaft (2) and a second groove (72) which is circumferentially distributed along the rotating axis of the second rotating shaft (3); the first convex tooth (511) is correspondingly matched with the first groove (71), and the second convex tooth (611) is correspondingly matched with the second groove (72);
a first limiting part (22) is arranged at one end, far away from the first bevel gear (21), of the first rotating shaft (2), and a second limiting part (32) is arranged at one end, far away from the second bevel gear (31), of the second rotating shaft (3); the first rotating shaft (2) and the second rotating shaft (3) are both sleeved with a return spring (8); two ends of a return spring (8) positioned on the first rotating shaft (2) respectively act on the sliding block (7) and the first limiting part (22); two ends of a return spring (8) positioned on the second rotating shaft (3) respectively act on the sliding block (7) and the second limiting part (32); the first convex teeth (511) can overcome the compression force of the corresponding return spring (8) to slide into the adjacent first grooves (71) along with the rotation of the first transmission part (51); the second convex teeth (611) can overcome the compression force of the corresponding return spring (8) to slide into the adjacent second grooves (72) along with the rotation of the second transmission part (61).
3. A folding mechanism for a folding screen according to claim 2, characterized in that: one end of the fixed plate (1) close to the sliding block (7) is provided with a limiting bracket (11) for limiting the positions of the first rotating plate (5) and the second rotating plate (6) on the first rotating shaft (2) and the second rotating shaft (3) respectively; the limiting bracket (11) is positioned between the first bevel gear (21) and the first transmission part (51) and also positioned between the second bevel gear (31) and the second transmission part (61).
4. A folding mechanism for a folding screen according to claim 3, characterized in that: the limiting bracket (11) is provided with a guide block (111); the guide block (111) is positioned between the first rotating shaft (2) and the second rotating shaft (3); and the sliding block (7) is provided with a guide groove (73) correspondingly matched with the guide block (111).
5. A folding mechanism for a folding screen according to claim 2, 3 or 4, characterized in that: also has a guide rod (9); the guide rod (9) is arranged in parallel with the first rotating shaft (2); the guide rod (9) is positioned between the first rotating shaft (2) and the second rotating shaft (3); the sliding block (7) is provided with a through hole for the guide rod (9) to pass through; one end of the guide rod (9) passes through the corresponding through hole and then is connected with the fixed plate (1), and the other end of the guide rod is provided with a third limiting part (91); the guide rod (9) is sleeved with a return spring (8), and two ends of the return spring (8) act on the sliding block (7) and the third limiting part (91) respectively.
6. A folding mechanism for a folding screen according to claim 2, characterized in that: the first transmission part (51) and the second transmission part (61) are provided with flat holes which penetrate through; the part of the first rotating shaft (2) which is in circumferential transmission fit with the first transmission part (51) is a flat rod which is in transmission fit with a flat hole of the first transmission part (51); the part of the second rotating shaft (3) which is in circumferential transmission fit with the second transmission part (61) is a flat rod which is in transmission fit with a flat hole of the second transmission part (61).
7. A folding mechanism for a folding screen according to claim 2, characterized in that: the first limiting part (22) is a clamp spring clamped on the first rotating shaft (2); the second limiting part (32) is a clamp spring clamped on the second rotating shaft (3).
8. A folding mechanism for a folding screen according to claim 2, characterized in that: the first transmission part (51) is cylindrical and is coaxial with the first rotating shaft (2); one end of the first transmission part (51) close to the sliding block (7) is provided with a plurality of first convex teeth (511) which are uniformly distributed along the circumference of the rotating axis of the first rotating shaft (2) and extend along the rotating axis of the first rotating shaft (2); the second transmission part (61) is cylindrical and is coaxial with the second rotating shaft (3); one end of the second transmission part (61) close to the sliding block (7) is provided with a plurality of second convex teeth (611) which are uniformly distributed along the circumference of the rotating axis of the second rotating shaft (3) and extend along the rotating axis of the first rotating shaft (2);
the through hole for the first rotating shaft (2) to pass through is positioned on one side edge of the first rotating plate (5) to form a plurality of first grooves (71) which are uniformly distributed along the circumference of the rotating axis of the first rotating shaft (2) and extend along the rotating axis of the first rotating shaft (2); the through hole for the second rotating shaft (3) to pass through is positioned on one side edge of the second rotating plate (6) to form a plurality of second grooves (72) which are uniformly distributed along the circumference of the rotating axis of the second rotating shaft (3) and extend along the rotating axis of the second rotating shaft (3); the first convex tooth (511) is matched and meshed with the first groove (71); the second convex tooth (611) is matched and meshed with the second groove (72).
9. A folding mechanism for a folding screen according to claim 1, characterized in that: when the first helical gear (21) rotates, the third helical gear (4) can drive the second helical gear (31) to rotate towards the opposite rotation direction of the first helical gear (21).
10. A folding mechanism for a folding screen according to claim 1, characterized in that: one end of the first rotating shaft (2) close to the fixed plate (1) is formed into a first helical gear (21) through roll forming, and one end of the second rotating shaft (3) close to the fixed plate (1) is formed into a second helical gear (31) through roll forming; and a third bevel gear (4) obtained by roll forming is rotatably arranged on the fixed plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158819.1U CN211018886U (en) | 2019-12-05 | 2019-12-05 | Folding mechanism for folding screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158819.1U CN211018886U (en) | 2019-12-05 | 2019-12-05 | Folding mechanism for folding screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211018886U true CN211018886U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922158819.1U Active CN211018886U (en) | 2019-12-05 | 2019-12-05 | Folding mechanism for folding screen |
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| CN (1) | CN211018886U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022055105A1 (en) * | 2020-09-08 | 2022-03-17 | 삼성전자 주식회사 | Hinge structure comprising helical gear, and electronic device comprising same |
| CN114508542A (en) * | 2022-03-11 | 2022-05-17 | 东莞华众鑫科技有限公司 | Skewed tooth pivot mechanism of folding screen of water droplet type |
| CN114508541A (en) * | 2022-03-11 | 2022-05-17 | 东莞华众鑫科技有限公司 | Bevel gear rotating shaft mechanism of water-drop type folding screen |
| US11385687B1 (en) | 2021-01-29 | 2022-07-12 | Samsung Electronics Co., Ltd. | Hinge structure and electronic device including the same |
| WO2022163961A1 (en) * | 2021-01-29 | 2022-08-04 | 삼성전자 주식회사 | Hinge structure and electronic device including hinge structure |
| US11889007B2 (en) | 2021-01-29 | 2024-01-30 | Samsung Electronics Co., Ltd. | Hinge structure and electronic device including the same |
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2019
- 2019-12-05 CN CN201922158819.1U patent/CN211018886U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022055105A1 (en) * | 2020-09-08 | 2022-03-17 | 삼성전자 주식회사 | Hinge structure comprising helical gear, and electronic device comprising same |
| US11385687B1 (en) | 2021-01-29 | 2022-07-12 | Samsung Electronics Co., Ltd. | Hinge structure and electronic device including the same |
| WO2022163961A1 (en) * | 2021-01-29 | 2022-08-04 | 삼성전자 주식회사 | Hinge structure and electronic device including hinge structure |
| KR20220110045A (en) * | 2021-01-29 | 2022-08-05 | 삼성전자주식회사 | Hinge structure and electronic device including the same |
| KR102509675B1 (en) | 2021-01-29 | 2023-03-15 | 삼성전자 주식회사 | Hinge structure and electronic device including the same |
| US11889007B2 (en) | 2021-01-29 | 2024-01-30 | Samsung Electronics Co., Ltd. | Hinge structure and electronic device including the same |
| US11886257B2 (en) | 2021-01-29 | 2024-01-30 | Samsung Electronics Co., Ltd. | Hinge structure and electronic device including the same |
| CN114508542A (en) * | 2022-03-11 | 2022-05-17 | 东莞华众鑫科技有限公司 | Skewed tooth pivot mechanism of folding screen of water droplet type |
| CN114508541A (en) * | 2022-03-11 | 2022-05-17 | 东莞华众鑫科技有限公司 | Bevel gear rotating shaft mechanism of water-drop type folding screen |
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