CN217784007U - Synchronous folding connecting mechanism - Google Patents
Synchronous folding connecting mechanism Download PDFInfo
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- CN217784007U CN217784007U CN202220505311.3U CN202220505311U CN217784007U CN 217784007 U CN217784007 U CN 217784007U CN 202220505311 U CN202220505311 U CN 202220505311U CN 217784007 U CN217784007 U CN 217784007U
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- rod
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- bar linkage
- metal plate
- flexible screen
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Abstract
The utility model provides a synchronous folding connection mechanism, which comprises a left side four-bar linkage mechanism and a right side four-bar linkage mechanism, wherein the left side four-bar linkage mechanism and the right side four-bar linkage mechanism are connected with a synchronous reverse rotation connection mechanism; the third rod is formed by arranging a plurality of metal plates at intervals, a first metal plate in friction fit with the third rod metal plate is arranged in the second rod, the second rod comprises a second rod metal plate positioned between adjacent third rod metal plates, and the synchronous folding connection mechanism is provided with a pressing mechanism for pressing the third rod metal plate and the metal plate in friction fit with the third rod metal plate; and the fourth rod is internally provided with staggered filling structures corresponding to the first metal sheet and the second rod metal plate with different lengths. The utility model discloses simple structure can adapt to the form when flexible screen buckles to and then the arc shape of buckling to flexible screen middle part provides the circular arc and supports, can be applied to the hinge equipment on digital products such as notebook computer, panel computer, cell-phone.
Description
Technical Field
The utility model relates to a be applied to the hinge of portable mobile terminal such as notebook computer that adopts flexible screen, especially relate to a synchronous folding joint mechanism.
Background
To flexible screen mobile terminal, in order to adapt to the form when flexible screen buckles, some can adopt the backup pad that is close to the middle part to rotate the scheme of dodging, also some can adopt the mode that middle part backup pad goes up and down. These structures all have the problem of relatively complex structures, increasing quality risks and costs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a synchronous folding joint mechanism can be applied to portable mobile terminal such as notebook computer that adopts flexible screen, provides dodging of flexible screen middle part position when folding, and simple structure.
Therefore, the utility model adopts the following technical scheme:
the synchronous folding connection mechanism comprises a synchronous reverse rotation connection mechanism and is characterized in that the connection mechanism comprises a left four-bar linkage mechanism and a right four-bar linkage mechanism, wherein the four-bar linkage mechanism sequentially comprises a first rod, a second rod, a third rod and a fourth rod; a second rod in the four-bar mechanism is a fixed rod, a third rod is provided with an arc surface corresponding to the bending arc of the flexible screen, and a fourth rod is provided with a connecting part connected to the flexible screen mobile terminal; the third rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism are connected with the synchronous reverse rotation connecting mechanism;
the third rod is formed by arranging a plurality of metal plates at intervals, a first metal plate in friction fit with the metal plates of the third rod is arranged in the second rod, the second rod comprises a second rod metal plate positioned between the adjacent metal plates of the third rod, and the synchronous folding connection mechanism is provided with a pressing mechanism for pressing the metal plates of the third rod and the metal plates in friction fit with the metal plates of the third rod;
and the fourth rod is internally provided with staggered filling structures corresponding to the first metal sheet and the second rod metal plate with different lengths.
On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme, or to these further technical scheme combined use:
and the arc surfaces of the third connecting rods in the left four-bar mechanism and the right four-bar mechanism rotate to be concentric or nearly concentric when the corresponding flexible screen mobile terminal is in a folded state.
Taking the state of the flexible screen mobile terminal during flattening as a reference state, wherein the rotating axis of the third rod and the fourth rod in rotating connection is positioned above the supporting surface of the flexible screen when the flexible screen mobile terminal is flattened, the rotating connection axis of the third rod and the fourth rod is positioned above the rotating connection axis of the first rod and the fourth rod, the third rod metal plate is provided with a guiding arc slide rail, the circle center of the guiding arc slide rail is the rotating axis, and the fourth rod is provided with a pair of guiding shafts which penetrate through the third rod metal plates to guide the arc slide rails; or, the rotation axle center that third pole and second pole rotation are connected is located the top of flexible screen holding surface when flexible screen mobile terminal exhibition is flat, the rotation of third pole and second pole is connected the axle center and is located first pole and second pole and rotate the top of connecting the axle center, the third pole metal sheet sets up direction circular arc slide rail, second pole in left side four-bar linkage and the four-bar linkage in the right side all sets up the a pair of guiding axle that passes third pole metal sheet direction circular arc slide rail, the guiding axle that the second pole set up in left side four-bar linkage and the four-bar linkage in the right side is arranged along same circumference, and its centre of a circle does the rotation axle center.
Two ends of the first rod are respectively and rotatably connected with the second rod and the fourth rod, and two ends of the third rod are respectively and rotatably connected with the second rod and the fourth rod;
the second rod metal plates of the left four-bar linkage mechanism and the right four-bar linkage mechanism which are positioned at the same position in the axial direction are integrated on the same plate; the synchronous folding connection mechanism is characterized in that end plates are further arranged on the two sections of the middle part, and the end plates are also part of second rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism.
A second metal sheet in friction fit with the metal plate of the third rod is arranged in the fourth rod; the flexible screen mobile terminal is used for corresponding the state at ordinary times of exhibition as the reference state, the rotation axle center that the third pole is connected with the fourth rod rotation is located the top of flexible screen holding surface when flexible screen mobile terminal exhibition is flat, the third pole metal sheet sets up direction circular arc slide rail, the centre of a circle of direction circular arc slide rail does the rotation axle center, the fourth rod sets up a pair of guiding axle that passes each third pole metal sheet direction circular arc slide rail, a pair of guiding axle also passes the second sheetmetal simultaneously.
Taking the state of the flexible screen mobile terminal during flattening as a reference state, wherein the rotating axis of the third rod and the fourth rod in rotating connection is positioned above the supporting surface of the flexible screen when the flexible screen mobile terminal is flattened, the third rod metal plate is provided with a guiding arc slide rail, the circle center of the guiding arc slide rail is the rotating axis, and the fourth rod is provided with a pair of guiding shafts which penetrate through the third rod metal plates to guide the arc slide rails; the third rod and the second rod are rotationally connected through a real shaft; the left part of the first metal sheet is in friction fit with a third rod metal plate of the left four-bar linkage mechanism, and the right part of the first metal sheet is in friction fit with a third rod metal plate of the right four-bar linkage mechanism; the solid shafts of the left four-bar linkage mechanism and the right four-bar linkage mechanism penetrate through the first metal sheet.
The filling structure comprises a plurality of metal plates with different lengths, wherein the metal plates are overlapped and connected, the long metal plate is axially corresponding to the first metal plate and is overlapped with the second rod metal plate in the direction perpendicular to the axial direction, and the short metal plate is axially corresponding to the second rod metal plate; a plurality of shafts disposed on the fourth rod pass through the filling structure.
The pressing mechanism comprises a disc spring sleeved on the shaft and a pressing nut which locks the disc spring and is in threaded connection with the shaft. Furthermore, the pressing mechanism comprises a disc spring sleeved on the guide shaft and the solid shaft and a pressing nut which is used for locking the disc spring and is in threaded connection with the shaft.
The synchronous reverse rotation connecting mechanism adopts a gear connecting structure; the gear connecting structure is composed of a first gear and a second gear which are connected in a meshed mode, and the first gear and the second gear are arranged at the end portions of third rod metal plates in the left side four-bar linkage mechanism and the right side four-bar linkage mechanism respectively.
Owing to adopt the technical scheme of the utility model, the utility model discloses simple structure under the condition that does not use lifter plate or rotor plate, can adapt to the form when flexible screen buckles to and then the arc shape of buckling to the flexible screen middle part provides the circular arc and supports, can be applied to the hinge equipment on digital products such as notebook computer, panel computer, cell-phone. The utility model discloses a four connecting rods cooperation gear drive realizes the simultaneous movement of both sides connecting rod, compares the stability that conventional full gear drive can be more, and the synchronism is higher. The utility model can provide friction torque, improve the rotation hand feeling or provide the function of stopping rotation at any time and positioning at any time, and the whole force value can be kept unchanged; through the utility model discloses a structure, the axial does not have virtual position, and the dislocation design can improve the quantity proportion of sheet metal component on the smooth basis of guarantee support, improves structural strength, reduce cost.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of the embodiment of the present invention when corresponding to a mobile terminal.
Fig. 3 is a schematic diagram of the embodiment of the present invention when the corresponding mobile terminal is folded.
Fig. 4 is a schematic perspective view of the embodiment of the present invention when the corresponding mobile terminal is folded.
Fig. 5 is a schematic view of the left and right four-bar linkages of the embodiment of fig. 1 showing the second and fourth bars with the third and first bars hidden.
FIG. 6 is a schematic view of the third rod of the left and right four-bar linkages of the embodiment of FIG. 1 and its frictional engagement with the first and second metal sheets.
Figure 7 is a cross-sectional view of the hold down mechanism between the fourth rod and the third rod in the embodiment of figure 1.
Fig. 8 is a cross-sectional view of the hold-down mechanism between the second rod and the third rod in the embodiment of fig. 1.
Fig. 9 is a schematic view showing the connection of the left side four-bar linkage and the right side four-bar linkage through the synchronous counter-rotating connection mechanism in the embodiment shown in fig. 1.
Fig. 10 is a schematic view of the first rod in the embodiment of fig. 1.
Detailed Description
Reference is made to the accompanying drawings. The utility model provides a synchronous folding connection mechanism, including synchronous reverse rotation coupling mechanism, left side four-bar linkage and right side four-bar linkage. Wherein, the four-bar linkage in left side includes first pole 11, second pole 12, third pole 13 and fourth pole 14 in proper order, and the four-bar linkage in right side includes first pole 21, second pole 22, third pole 23 and fourth pole 24 in proper order, the both ends of first pole are connected with second pole and fourth pole rotation respectively, and the both ends of third pole are connected with second pole and fourth pole rotation respectively.
The fourth bars 14, 24 are provided with connection portions for connecting to the flexible screen mobile terminal, such as connection arms provided with screw connection holes; the third rods 13 and 23 of the left four-bar linkage and the right four-bar linkage are connected with the synchronous reverse rotation connecting mechanism.
The third bars 13, 23 are formed by a plurality of metal plates 130, 230 arranged at intervals, and the metal plates 130, 230 (including the gears at the ends thereof) may be made of sheet metal. The first metal sheet 4 in friction fit with the third rod metal plates is arranged in the second rods 12 and 22, the second rod metal plates 122 and 222 between the adjacent third rod metal plates are included in the second rods 12 and 22, and the synchronous folding connection mechanism is provided with a pressing mechanism for pressing the third rod metal plates and the metal sheets in friction fit with the third rod metal plates.
The fourth bars 14, 24 are provided therein with staggered filling structures corresponding to the first and second bar metal plates 4, 122, 222 of different lengths (the second bar metal plates 122, 222 being longer than the first metal plate 4).
The utility model discloses a virtual centre of a circle rotating-structure still can be realized to four link mechanism. The flexible screen mobile terminal is characterized in that the state corresponding to the flexible screen mobile terminal during flattening is taken as a reference state, the rotating shaft center of the third rod 13, 23 and the fourth rod 14, 24 in rotating connection is positioned above the flexible screen supporting surface during flattening of the flexible screen mobile terminal, the rotating connecting shaft center of the third rod 13, 23 and the fourth rod 14, 24 is positioned above the rotating connecting shaft center of the first rod 11, 21 and the fourth rod 14, 24, the third rod metal plate is provided with a guiding arc slide rail 132, 232, the circle center of the guiding arc slide rail 132, 232 is the rotating shaft center, and the fourth rod 14, 24 is provided with a pair of guiding shafts 141, 241 penetrating through the guiding arc slide rails of the third rod metal plate. The third rods 13, 23 and the second rods 12, 22 are rotatably connected through solid shafts 31, 32;
a second metal sheet 142, 242 which is in friction fit with the third rod metal plate is arranged in the fourth rod 14, 24; the pair of guide shafts 141, 241 also pass through the second metal sheets 142, 242.
Furthermore, each first metal sheet 4 is a left four-bar mechanism and a right four-bar mechanism, the left part of the first metal sheet 4 is in friction fit with the third rod metal plate of the left four-bar mechanism, and the right part of the first metal sheet 4 is in friction fit with the third rod metal plate of the right four-bar mechanism; the solid shafts 31, 32 of the left and right four-bar linkages each pass through the first metal sheet 4 to secure the first metal sheet 4 and the second bars 12, 22 together.
The second rod metal plates 122, 222 of the left and right four-bar linkages, which are positioned at the same position in the axial direction, are integrated on the same plate 8, and the plate 8 is connected to the solid shafts 31, 32 at the same time; the synchronous folding connection mechanism is also provided with end plates 5 at two sections of the middle part, the end plates 5 are also parts of second rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism, and solid shafts 31 and 32 connected with the third rods 13 and 23 and solid shafts 50 connected with the first rods 11 and 21 are connected with the end plates 5.
The filling structure comprises a plurality of metal plates 71 and 72 which are different in length and are formed by overlapping and connecting, wherein the long metal plate 71 axially corresponds to the first metal sheet 4 and is overlapped with the second rod metal plate, namely the plate 8, in the direction perpendicular to the axial direction, and the short metal plate 72 axially corresponds to the second rod metal plate, namely the plate 8. The guide shafts 141, 241 also pass through the filling structure.
The pressing mechanism includes a disc spring 91 fitted around the guide shafts 141 and 142 and the solid shafts 31 and 32, and a pressing nut 92 for locking the disc spring 91 and screwed to the shaft, and the outer members of the end plate 5 and the fourth rod may be provided with a thickness such that the pressing nut 92 is hidden in a hole within the thickness.
The synchronous reverse rotation connecting mechanism adopts a gear connecting structure; the gear connecting structure is composed of a first gear 61 and a second gear 62 which are connected in a meshing manner, the first gear 61 and the second gear 62 are respectively arranged at the end parts of a third rod metal plate in the left four-bar linkage mechanism and the right four-bar linkage mechanism, and a gear shaft is the real shaft 41, 32
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art is in the field of the present invention, and all the changes or modifications are covered in the protection scope of the present invention.
It is to be understood that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the invention and the above-described drawings are intended to cover non-exclusive inclusions. The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "the inside", "the horizontal", "the end", "the length", "the outer end", "the left", "the right", "the upper", "the lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (10)
1. The synchronous folding connection mechanism comprises a synchronous reverse rotation connection mechanism and is characterized in that the connection mechanism comprises a left four-bar linkage mechanism and a right four-bar linkage mechanism, wherein the four-bar linkage mechanism sequentially comprises a first rod, a second rod, a third rod and a fourth rod; a second rod in the four-bar mechanism is a fixed rod, a third rod is provided with an arc surface corresponding to the bending arc of the flexible screen, and a fourth rod is provided with a connecting part connected to the flexible screen mobile terminal; the third rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism are connected with the synchronous reverse rotation connecting mechanism;
the third rod is formed by arranging a plurality of metal plates at intervals, a first metal plate in friction fit with the metal plates of the third rod is arranged in the second rod, the second rod comprises a second rod metal plate positioned between the adjacent metal plates of the third rod, and the synchronous folding connecting mechanism is provided with a pressing mechanism for pressing the metal plates of the third rod and the metal plates in friction fit with the metal plates of the third rod;
and the fourth rod is internally provided with staggered filling structures corresponding to the first metal sheet and the second rod metal plate with different lengths.
2. The synchronous folding connection mechanism of claim 1, wherein the circular arc surface of the third link of the left four-bar linkage mechanism and the right four-bar linkage mechanism rotates to be concentric or nearly concentric when the corresponding flexible screen mobile terminal is in a folded state.
3. The synchronous folding connection mechanism of claim 1, wherein a state corresponding to the flat state of the flexible screen mobile terminal is taken as a reference state, a rotation axis of the third rod and the fourth rod is rotatably connected to the flexible screen support surface when the flexible screen mobile terminal is flat, a rotation connection axis of the third rod and the fourth rod is positioned above a rotation connection axis of the first rod and the fourth rod, the third rod metal plate is provided with a guiding arc slide rail, the center of the guiding arc slide rail is the rotation axis, and the fourth rod is provided with a pair of guiding shafts which pass through each third rod metal plate to guide the arc slide rail; or, the rotation axle center that third pole and second pole rotation are connected is located the top of flexible screen holding surface when flexible screen mobile terminal exhibition is flat, the rotation of third pole and second pole is connected the axle center and is located first pole and second pole and rotate the top of connecting the axle center, the third pole metal sheet sets up direction circular arc slide rail, second pole in left side four-bar linkage and the four-bar linkage in the right side all sets up the a pair of guiding axle that passes third pole metal sheet direction circular arc slide rail, the guiding axle that the second pole set up in left side four-bar linkage and the four-bar linkage in the right side is arranged along same circumference, and its centre of a circle does the rotation axle center.
4. The synchronized folding linkage of claim 1, wherein said first bar is pivotally coupled at each end to said second bar and said fourth bar, and said third bar is pivotally coupled at each end to said second bar and said fourth bar;
the second rod metal plates of the left four-bar linkage mechanism and the right four-bar linkage mechanism which are positioned at the same position in the axial direction are integrated on the same plate;
the synchronous folding connection mechanism is characterized in that end plates are further arranged on the two sections of the middle part, and the end plates are also part of second rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism.
5. The simultaneous folding linkage as recited in claim 1 in which a second metal plate is disposed in said fourth bar in frictional engagement with the metal plate of the third bar; the flexible screen mobile terminal is used for corresponding the state at ordinary times of exhibition as the reference state, the rotation axle center that the third pole is connected with the fourth rod rotation is located the top of flexible screen holding surface when flexible screen mobile terminal exhibition is flat, the third pole metal sheet sets up direction circular arc slide rail, the centre of a circle of direction circular arc slide rail does the rotation axle center, the fourth rod sets up a pair of guiding axle that passes each third pole metal sheet direction circular arc slide rail, a pair of guiding axle also passes the second sheetmetal simultaneously.
6. The synchronous folding connection mechanism of claim 3, wherein a rotation axis of the third bar pivotally connected to the fourth bar is located above a support surface of the flexible screen when the flexible screen mobile terminal is unfolded, the third bar metal plate is provided with a guiding arc slide rail, a center of the guiding arc slide rail is the rotation axis, and the fourth bar is provided with a pair of guiding shafts passing through each of the third bar metal plate guiding arc slide rails, taking a state corresponding to the unfolded state of the flexible screen mobile terminal as a reference state; the third rod and the second rod are rotatably connected through a solid shaft; the left part of the first metal sheet is in friction fit with a third rod metal plate of the left four-bar linkage mechanism, and the right part of the first metal sheet is in friction fit with a third rod metal plate of the right four-bar linkage mechanism; the real shafts of the left four-bar linkage mechanism and the right four-bar linkage mechanism penetrate through the first metal sheet.
7. The synchronous folding joint as claimed in claim 1, wherein the filling structure comprises a plurality of metal plates of different lengths stacked together, wherein the long metal plate axially corresponds to the first metal plate and overlaps the second rod metal plate in a direction perpendicular to the axial direction, and the short metal plate axially corresponds to the second rod metal plate; and a plurality of shafts arranged on the fourth rod penetrate through the filling structure.
8. The synchrofold attachment of claim 1, wherein the hold-down mechanism comprises a disc spring disposed about the shaft and a hold-down nut threadably engaged with the shaft for locking the disc spring.
9. The synchrotron folding connection of claim 6, wherein the hold-down mechanism comprises a disc spring fitted around the pilot and solid shafts and a hold-down nut threadedly connected to the shaft to lock the disc spring.
10. The synchronous folding linkage as in claim 1, wherein the synchronous counter-rotating linkage is a geared linkage; the gear connecting structure is composed of a first gear and a second gear which are connected in a meshed mode, and the first gear and the second gear are arranged at the end portions of third rod metal plates in the left side four-bar linkage mechanism and the right side four-bar linkage mechanism respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220505311.3U CN217784007U (en) | 2022-03-09 | 2022-03-09 | Synchronous folding connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220505311.3U CN217784007U (en) | 2022-03-09 | 2022-03-09 | Synchronous folding connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217784007U true CN217784007U (en) | 2022-11-11 |
Family
ID=83905082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220505311.3U Active CN217784007U (en) | 2022-03-09 | 2022-03-09 | Synchronous folding connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217784007U (en) |
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2022
- 2022-03-09 CN CN202220505311.3U patent/CN217784007U/en active Active
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