CN217842348U - Synchronous folding connection mechanism - Google Patents

Synchronous folding connection mechanism Download PDF

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Publication number
CN217842348U
CN217842348U CN202220495032.3U CN202220495032U CN217842348U CN 217842348 U CN217842348 U CN 217842348U CN 202220495032 U CN202220495032 U CN 202220495032U CN 217842348 U CN217842348 U CN 217842348U
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China
Prior art keywords
rod
gear
bar linkage
bar
flexible screen
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CN202220495032.3U
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Chinese (zh)
Inventor
叶珂
廖上敏
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Hangzhou Amphenol Phoenix Telecom Parts Co Ltd
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Hangzhou Amphenol Phoenix Telecom Parts Co Ltd
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Abstract

The utility model provides a synchronous folding connection mechanism, which comprises a left side four-bar linkage and a right side four-bar linkage, wherein the four-bar linkage 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 first rod or the third rod of the left side and the right side four-bar linkage mechanism is connected with the synchronous reverse rotation connecting mechanism. 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 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 rod cooperation symmetrical gear drive realize the simultaneous movement of both sides connecting rod, compare the stability that conventional full gear drive can be more, and the synchronism is higher.

Description

Synchronous folding connection mechanism
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 the 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 at flexible screen middle part position when folding, and simple structure.
Therefore, the utility model adopts the following technical scheme:
a 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 and a right four-bar linkage, wherein the four-bar linkage sequentially comprises a first bar, a second bar, a third bar and a fourth bar; 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; and the first rod or the third rod of the left four-bar linkage mechanism and the right four-bar linkage mechanism is connected with the synchronous reverse rotation connecting mechanism.
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 rods in the left four-bar linkage mechanism and the right four-bar linkage mechanism rotate to be concentric or nearly concentric when the corresponding flexible screen mobile terminal is in a folded state.
The rotating axis of the third rod and the second rod in rotating connection is located above the flexible screen supporting surface when the flexible screen mobile terminal is unfolded, the second rod is provided with an arc sliding rail for the third rod to rotate, and the circle center of the arc sliding rail is the rotating axis; or the center of a rotation circle of the third rod and the fourth rod in rotary connection is positioned above the supporting surface of the flexible screen when the flexible screen mobile terminal is unfolded, the fourth rod is provided with an arc slide rail in which the third rod rotates, and the center of the arc slide rail is the rotation axis; the arc slide rails in the left side four-bar linkage mechanism and the right side four-bar linkage mechanism are concentric, and the third rod is provided with an arc slide block which is connected with the arc slide rails in a sliding manner.
The two ends of the first rod are respectively in rotating connection with the second rod and the fourth rod, and the two ends of the third rod are respectively in rotating connection with the second rod and the fourth rod.
Synchronous counter-rotating coupling mechanism adopts gear connection structure, gear connection structure is including first gear, second gear, third gear and the fourth gear that meshes the connection in proper order, the third pole in left side four-bar linkage and the right side four-bar linkage sets up first gear and fourth gear respectively, second gear and third gear are fixed on the second pole in left side four-bar linkage and the right side four-bar linkage.
The second rods in the left four-bar mechanism and the right four-bar mechanism are respectively provided with plates with arc sliding rails, the plates in the left four-bar mechanism and the right four-bar mechanism are two parts of one fixed plate, the synchronous folding connection mechanism is provided with two fixed plates, and the synchronous reverse rotation connection mechanism is positioned between the two fixed plates; in the axial direction, the third rod is also located between the two fixing plates.
The synchronous reverse rotation connecting mechanism adopts a gear connecting structure, the gear connecting structure comprises a first gear, a second gear, a third gear and a fourth gear which are sequentially meshed and connected, third rods in the left side four-bar linkage mechanism and the right side four-bar linkage mechanism are respectively provided with the first gear and the fourth gear, and gear shafts of the second gear and the third gear are fixed on the fixing plate.
The four-bar linkage is configured to: when the synchronous folding connection mechanism is in a state that the corresponding flexible screen terminal is in a flattening state, the rotating connection axis of the third rod and the second rod is positioned above the rotating connection axis of the first rod and the second rod.
Second rods in the left four-bar linkage mechanism and the right four-bar linkage mechanism are fixed in a middle shell of the flexible screen mobile terminal; the four-bar linkage mechanism is positioned below the flexible screen.
Because of the adoption of 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 is buckled 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. The utility model discloses a four connecting rod cooperation symmetrical gear drive realize the simultaneous movement of both sides connecting rod, compare the stability that conventional full gear drive can be more, and the synchronism is higher.
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 the mobile terminal is unfolded and flat.
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 view of the second rod of the left and right four-bar linkages in the embodiment of fig. 1.
Fig. 5 is a schematic view of a third rod in the left and right four-bar linkages of the embodiment of fig. 1.
Fig. 6 is a schematic view of the first rod in the left and right four-bar linkages in the embodiment of fig. 1.
Fig. 7 is a schematic view of a fourth bar in the left and right four-bar linkages in the embodiment of fig. 1.
FIG. 8 is a schematic view of the second rod and gear connection 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 100 and right side four-bar linkage 200. Wherein, left side four-bar linkage 100 includes first pole 11, second pole 12, third pole 13 and fourth pole 14 in proper order, and right side four-bar linkage 200 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.
Second rods 12 and 22 in the four-bar linkage are fixed rods and are fixed in a middle shell of the flexible screen mobile terminal; the four-bar linkage mechanism is positioned below the flexible screen. The third rods 13 and 23 are provided with arc surfaces 130 and 230 corresponding to the curved arcs of the flexible screen, and the arc surfaces 130 and 230 rotate to be concentric or nearly concentric when corresponding to the flexible screen mobile terminal in a folded state (fig. 3), so that the length of the inner edge of the mechanism is unchanged in the process of opening and closing the full angle, and the mechanism can stay at any rotation angle (between 0 and 184 degrees in this embodiment). Through the length adjustment of the four-bar linkage, the size change of the inner edge space can be changed, and the use requirement of the product is met.
The fourth bars 14, 24 are provided with connection portions connected 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 mechanism and the right four-bar linkage mechanism are connected with the synchronous reverse rotation connecting mechanism.
The utility model discloses a virtual centre of a circle rotating-structure still can be realized to four link mechanism. The rotation axis of the third rod 13, 23 rotatably connected with the second rod 12, 22 is located above the flexible screen supporting surface when the flexible screen mobile terminal is unfolded, the second rod 12, 22 is provided with an arc slide rail 121, 221 on which the third rod 13, 23 rotates, and the circle center of the arc slide rail 121, 221 is the rotation axis; the arc slide rails 121 and 221 in the left four-bar linkage mechanism and the right four-bar linkage mechanism are concentric, and arc slide blocks 131 and 231 connected with the arc slide rails in a sliding manner are arranged on the third rods 13 and 23. When the synchronous folding connection mechanism is in a state that the corresponding flexible screen terminal is in a flat state, the rotating connection axis of the third rods 13 and 23 and the second rods 12 and 22 is positioned above the rotating connection axis of the first rods 11 and 21 and the second rods 12 and 22.
The second rods 12 and 22 in the left four-bar linkage mechanism and the right four-bar linkage mechanism are respectively provided with plates with arc slide rails, the plates in the left four-bar linkage mechanism and the right four-bar linkage mechanism are two parts of one fixed plate 300, the synchronous folding connection mechanism is arranged on the two fixed plates 300, and the synchronous reverse rotation connection mechanism is positioned between the two fixed plates 300; in the axial direction, the third rods 13, 23 are located between the two fixing plates 300.
Synchronous reverse rotation coupling mechanism adopts gear connection structure, gear connection structure is including the first gear 31, second gear 32, third gear 33 and the fourth gear 34 that mesh in proper order and connect, third pole 13, 23 in the four-bar linkage in left side and the four-bar linkage in right side set up first gear 31 and fourth gear 34 respectively, the gear shaft of second gear 32 and third gear 33 is fixed on the fixed plate.
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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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 (9)

1. A 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 and a right four-bar linkage, wherein the four-bar linkage 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; and the first rod or the third rod of the left four-bar linkage mechanism and the right four-bar linkage mechanism is connected with the synchronous reverse rotation connecting mechanism.
2. The mechanism as claimed in claim 1, wherein the circular arc surface of the third rod 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 mechanism according to claim 1, wherein a rotation axis of the third rod rotatably connected to the second rod is located above the supporting surface of the flexible screen when the mobile terminal of the flexible screen is unfolded, the second rod is provided with an arc slide rail for rotating the third rod, and a center of the arc slide rail is the rotation axis; or the center of a rotation circle of the third rod and the fourth rod in rotary connection is positioned above the supporting surface of the flexible screen when the flexible screen mobile terminal is unfolded, the fourth rod is provided with an arc slide rail in which the third rod rotates, and the center of the arc slide rail is the rotation axis; the arc slide rails in the left four-bar mechanism and the right four-bar mechanism are concentric, and the third rod is provided with an arc slide block which is connected with the arc slide rails in a sliding manner.
4. The simultaneous folding linkage of claim 1, wherein said first bar is pivotally connected at each end to said second bar and said fourth bar, and said third bar is pivotally connected at each end to said second bar and said fourth bar.
5. The synchronous folding connection mechanism as claimed in claim 1, wherein the synchronous reverse rotation connection mechanism adopts a gear connection structure, the gear connection structure comprises a first gear, a second gear, a third gear and a fourth gear which are meshed and connected in sequence, the first gear and the fourth gear are respectively arranged on the third rod of the left four-bar linkage mechanism and the third rod of the right four-bar linkage mechanism, and the second gear and the third gear are fixed on the second rod of the left four-bar linkage mechanism and the second rod of the right four-bar linkage mechanism.
6. The synchronous folding connection mechanism of claim 3, wherein the second rods of the left four-bar linkage mechanism and the right four-bar linkage mechanism are respectively provided with plates provided with arc slide rails, the plates of the left four-bar linkage mechanism and the right four-bar linkage mechanism are two parts of a fixed plate, the synchronous folding connection mechanism is provided with two fixed plates, and the synchronous reverse rotation connection mechanism is positioned between the two fixed plates; in the axial direction, the third rod is also located between the two fixing plates.
7. The synchronous folding connecting mechanism of claim 6, wherein the synchronous reverse rotation connecting mechanism adopts a gear connecting structure, the gear connecting structure comprises a first gear, a second gear, a third gear and a fourth gear which are meshed and connected in sequence, the third rod of the left four-bar linkage and the third rod of the right four-bar linkage are respectively provided with the first gear and the fourth gear, and gear shafts of the second gear and the third gear are fixed on the fixing plate.
8. A simultaneous folding linkage as claimed in claim 3, wherein said four-bar linkage is arranged to: when the synchronous folding connection mechanism is in a state that the corresponding flexible screen terminal is in a flattening state, the rotating connection axis of the third rod and the second rod is positioned above the rotating connection axis of the first rod and the second rod.
9. The simultaneous folding connection as recited in claim 1, wherein the second levers of the left side four-bar linkage and the right side four-bar linkage are fixed in a middle housing of the flexible screen mobile terminal; the four-bar linkage mechanism is positioned below the flexible screen.
CN202220495032.3U 2022-03-09 2022-03-09 Synchronous folding connection mechanism Active CN217842348U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220495032.3U CN217842348U (en) 2022-03-09 2022-03-09 Synchronous folding connection mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220495032.3U CN217842348U (en) 2022-03-09 2022-03-09 Synchronous folding connection mechanism

Publications (1)

Publication Number Publication Date
CN217842348U true CN217842348U (en) 2022-11-18

Family

ID=84011009

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220495032.3U Active CN217842348U (en) 2022-03-09 2022-03-09 Synchronous folding connection mechanism

Country Status (1)

Country Link
CN (1) CN217842348U (en)

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