A hinge synchronous rotation mechanism

Abstract

The present invention relates to a hinge synchronous rotation mechanism, which has a mounting base, a flip assembly arranged on the upper and lower sides of the mounting base, a synchronous gear set for the flip assemblies on the upper and lower sides to rotate synchronously, and a damping device for the flip assembly to form a damped rotation when flipping; the synchronous gear set is installed on the mounting base; the flip assembly includes a first rotating plate; the first rotating plate includes a plurality of plate bodies, and adjacent plate bodies form synchronous rotation through limiting cooperation; the lower end of the first plate body is connected to the gear transmission on the corresponding side of the synchronous gear set; each plate body forms friction with the mounting base when rotating. The present invention increases the damping feel and improves the use experience by forming friction with the mounting base by the plurality of plate bodies constituting the first rotating plate. At the same time, this design can increase or reduce the number of plate bodies constituting the first rotating plate according to actual conditions, thereby improving adaptability and reducing design costs and production costs.

Description

Technical Field

[0001] The invention relates to a hinge, and in particular to a hinge synchronous rotation mechanism. Background Art

[0002] With the continuous advancement and expansion of technology in the field of mobile terminals, and the advent of the 5G network era, people are becoming more and more dependent on mobile terminals. Nowadays, with the continuous updating of various chat, video and other software, people feel that conventional touch screen phones or tablets are no longer enough, mainly because the size of the screen is limited by the size of the mobile terminal.

[0003] In order to solve this problem, people invented flexible screens and applied them to mobile terminals. Through the folding design, the mobile terminal can meet people's requirements for portability and can expand the screen of the mobile terminal by unfolding when needed. In order to achieve the above requirements, the key lies in whether the design of the hinge mechanism is reasonable.

[0004] At present, the hinge mechanism of mobile terminals with folding screens is designed with a damping component to improve the feel when folding. The damping component can increase the damping feeling when folding, thereby improving the user experience. However, if the existing hinge mechanism only uses the damping component to improve the user experience, it is often necessary to design more damping components to achieve it. Designing more damping components within the effective installation space will not only take up more space, but the increase in parts and the increase in matching relationships will greatly increase the failure rate. Summary of the invention

[0005] The purpose of the present invention is to provide a hinge synchronous rotation mechanism, which can greatly increase the damping feel and improve the user experience. At the same time, this design can increase or decrease the number of plates constituting the first rotating plate according to the actual situation of the mobile terminal with a folding screen, thereby improving adaptability and reducing design costs and production costs.

[0006] The technical solution for achieving the purpose of the present invention is as follows: the present invention comprises a mounting base, flipping assemblies arranged on the upper and lower sides of the mounting base, a synchronous gear set for synchronously rotating the flipping assemblies on the upper and lower sides, and a damping device for forming a damped rotation when the flipping assembly flips; the synchronous gear set is mounted on the mounting base; the flipping assembly comprises a first rotating plate; the first rotating plate comprises a plurality of plate bodies, and adjacent plate bodies form synchronous rotation through limiting cooperation; the lower end of the first plate body is connected to the gear transmission on the corresponding side of the synchronous gear set; and each plate body forms friction with the mounting base when rotating.

[0007] Furthermore, the lower end of at least one of the first plates is configured as a transmission tooth, and the transmission tooth serves as a gear on a corresponding side of the synchronous gear set.

[0008] Furthermore, the above-mentioned first plate body includes three plates; the lower end of the middle plate body is set to form a transmission tooth; the two end faces of the middle plate body are located in the direction of the rotation axis of the transmission tooth, and friction is formed with the mounting base when the middle plate body rotates; at least one of the two end faces of the other two plate bodies located in the direction of the rotation axis of the transmission tooth forms friction with the mounting base.

[0009] Furthermore, a damping device is arranged on the left side or the right side or both sides of the first rotating plate; the damping device includes two symmetrically arranged damping components; one damping component corresponds to one first rotating plate; the damping component includes a first damping protrusion, a second damping protrusion, a damping spring and a first assembly axis; the first damping protrusion is arranged at the lower end of the plate body on the corresponding side and rotates coaxially with the plate body; the first assembly axis is arranged on the mounting base and passes through the damping spring and the second damping protrusion in sequence; the second damping protrusion can only slide along the axial direction of the first assembly axis; as the first rotating plate rotates, the corresponding first damping protrusion and the second damping protrusion form a damped rotation through the distance difference formed during the continuous meshing process.

[0010] Furthermore, the second damping protruding teeth of the two symmetrically arranged damping assemblies are connected into one body through a connecting plate.

[0011] Furthermore, the lower ends of the plates of the first rotating plate are rotatably connected to the mounting base via the first assembly shaft.

[0012] Furthermore, the opposing surfaces of adjacent plates are respectively provided with limiting blocks and limiting grooves; the adjacent plates are fitted with each other by inserting the limiting blocks into the limiting grooves.

[0013] Furthermore, the flip assembly also includes a driving plate and a second rotating plate; the upper end of the first rotating plate forms a sliding compensation fit with the driving plate; the driving plate and the upper end of the second rotating plate form a rotating connection, and the lower end of the second rotating plate forms a virtual axis rotating connection with the mounting base.

[0014] The present invention has positive effects: (1) The first rotating plate in the present invention is assembled from a plurality of plates, and through assembly, each plate can form friction with the mounting base, and each friction can provide a damping feeling, thereby improving the feel of use; at the same time, this design can increase or decrease the number of plates on different varieties and models of folding screen mobile terminals according to actual conditions, thereby reducing design costs and production costs.

[0015] (2) In the present invention, the lower end of the first rotating plate is directly configured as a transmission tooth as a part of the synchronous gear set, which can simplify the assembly parts.

[0016] (3) The present invention can greatly enhance the damping feeling under the friction between the damping component and the first rotating plate and the mounting base, thereby further enhancing the user experience.

[0017] (4) In the present invention, the first assembly shaft is directly involved in the assembly of the damping assembly and the first rotating plate, which greatly simplifies the difficulty of assembly. In addition, based on the transmission teeth at the lower end of the first rotating plate, the first assembly shaft does not participate in the transmission, but only serves as a rotating connecting shaft and a guide.

[0018] (5) The split design of the first rotating plate in the present invention enables the first rotating plate to select a combination of plate bodies with different structures, which can meet the use requirements of multiple damping components, thereby further providing the possibility of improving the damping feeling.

[0019] (6) The connecting plate of the present invention connects the two second damping protruding teeth, so that the first assembly shaft does not need to directly form a sliding limited fit with the second damping protruding teeth, thereby simplifying the design difficulty and processing difficulty of the first assembly shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 is a schematic structural diagram of the first rotating plate in Embodiment 1 of the present invention;

[0025] Figure 5 A schematic diagram of the structure of the first rotating plate in Example 2 of the present invention. DETAILED DESCRIPTION

[0026] (Example 1)

[0027] See Figures 1 to 4 The hinge synchronous rotation mechanism of the present invention comprises a mounting base 1, a flip assembly 2 arranged on the upper and lower sides of the mounting base 1, a synchronous gear set 3 for the flip assembly 2 on the upper and lower sides to rotate synchronously, and a damping device for forming a damped rotation when the flip assembly 2 flips; the mounting base 1 is a general term, that is, it can be a component or a combination of multiple components. In this embodiment, the synchronous gear set 3 is rotatably arranged on the retaining frame, and the retaining frame is a part of the mounting base 1; therefore, the synchronous gear set 3 can be considered to be mounted on the mounting base 1.

[0028] The flip assembly 2 includes a first rotating plate 21; the first rotating plate 21 includes three plates, and adjacent plates are synchronously rotated by limiting cooperation; the limiting cooperation is a limiting block 211 and a limiting groove 212 set on the opposite end faces of adjacent plates, which is realized by inserting the limiting block 211 into the limiting groove 212; the lower end of the middle plate is set as a transmission tooth 213, and the transmission tooth 213 serves as the gear on the corresponding side of the synchronous gear set 3; the middle plate is located at the end faces on the left and right sides, and forms friction with the mounting base 1 when the middle plate rotates; the right end face of the leftmost plate and the left and right end faces of the rightmost plate both form friction with the mounting base 1. Specifically, the right end face of the leftmost plate forms friction with the retaining frame as a part of the mounting base 1, the left and right end faces of the middle plate form friction with the retaining frame as a part of the mounting base 1, and the left and right end faces of the rightmost plate form friction with the retaining frame as a part of the mounting base 1 and the mounting base 1 respectively.

[0029] A damping device is arranged on the left side of the first rotating plate 21; the damping device includes two symmetrically arranged damping components 4; one damping component 4 corresponds to one first rotating plate 21; the damping component 4 includes a first damping tooth 41, a second damping tooth 42, a damping spring 43 and a first assembly shaft 44; the first damping tooth 41 is arranged at the lower end of the left end surface of the leftmost plate body and rotates coaxially with the plate body; the first assembly shaft 44 is arranged on the mounting base 1, and passes through the damping spring 43 and the second damping tooth 42 in sequence; the second damping teeth 42 of the two symmetrically arranged damping components 4 are connected into one by a connecting plate 45; as the first rotating plate 21 rotates, the corresponding first damping tooth 41 and the second damping tooth 42 form a damped rotation through the distance difference formed in the continuous meshing process.

[0030] The lower ends of the plates of the first rotating plate 21 are rotatably connected to the mounting base 1 via the first assembly shaft 44 .

[0031] At the same time, the flip assembly 2 also includes a driving plate 22 and a second rotating plate 23; the upper end of the first rotating plate 21 forms a sliding compensation fit with the driving plate 22; the driving plate 22 and the upper end of the second rotating plate 23 form a rotational connection, and the lower end of the second rotating plate 23 forms a virtual axis rotational connection with the mounting base 1.

[0032] (Example 2)

[0033] See Figure 5In the present invention, the first rotating plate 21 includes three plates, and the adjacent plates are matched to form synchronous rotation; the matching is a limit block 211 and a limit groove 212 set on the opposite end faces of the adjacent plates, which is realized by inserting the limit block 211 into the limit groove 212; the lower end of the middle plate is set as a transmission tooth 213, and the transmission tooth 213 serves as the gear on the corresponding side of the synchronous gear set 3; the middle plate is located on the end faces on the left and right sides, and forms friction with the mounting base 1 when the middle plate rotates; the right end face of the leftmost plate and the left end face of the rightmost plate both form friction with the mounting base 1.

[0034] Damping devices are correspondingly arranged on the left and right sides of the first rotating plate 21; first damping protruding teeth 41 are arranged on the lower end of the left end surface of the leftmost plate body and the lower end of the right belly surface of the rightmost plate body.

[0035] Other technical features are the same as those of Example 1.

[0036] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hinge synchronous rotation mechanism, comprising a mounting base, a flip assembly arranged on the upper and lower sides of the mounting base, a synchronous gear set for the flip assemblies on the upper and lower sides to rotate synchronously, and a damping device for forming a damped rotation when the flip assembly flips; the synchronous gear set is mounted on the mounting base; the flip assembly includes a first rotating plate; characterized in that: The first rotating plate comprises a plurality of plates, and adjacent plates are configured to rotate synchronously by limiting the position of the plates; the lower end of the first plate is connected to the gear transmission of the corresponding side of the synchronous gear set; and each plate forms friction with the mounting base when rotating; A damping device is arranged on the left side or the right side or both sides of the first rotating plate; the damping device includes two symmetrically arranged damping components; one damping component corresponds to one first rotating plate; the damping component includes a first damping protrusion, a second damping protrusion, a damping spring and a first assembly shaft; the first damping protrusion is arranged at the lower end of the plate body on the corresponding side and rotates coaxially with the plate body; the first assembly shaft is arranged on the mounting base and passes through the damping spring and the second damping protrusion in sequence; the second damping protrusion can only slide along the axial direction of the first assembly shaft; as the first rotating plate rotates, the corresponding first damping protrusion and the second damping protrusion form a damped rotation through the distance difference formed in the continuous meshing process.

2. The hinge synchronous rotation mechanism according to claim 1, characterized in that: The lower end of at least one of the first plates is configured as a transmission tooth, and the transmission tooth serves as a gear on a corresponding side of the synchronous gear set.

3. A hinge synchronous rotation mechanism according to claim 2, characterized in that: The first plate body includes three plates; the lower end of the middle plate body is set as a transmission tooth; the two end faces of the middle plate body are located in the direction of the rotation axis of the transmission tooth, and friction is formed with the mounting base when the middle plate body rotates; at least one of the two end faces of the other two plate bodies located in the direction of the rotation axis of the transmission tooth forms friction with the mounting base.

4. The hinge synchronous rotation mechanism according to claim 1, characterized in that: The second damping protruding teeth of two symmetrically arranged damping assemblies are connected into one body through a connecting plate.

5. The hinge synchronous rotation mechanism according to claim 1, characterized in that: The lower ends of the plates of the first rotating plate are rotatably connected to the mounting base via the first assembly shaft.

6. The hinge synchronous rotation mechanism according to claim 4, characterized in that: The lower ends of the plates of the first rotating plate are rotatably connected to the mounting base via the first assembly shaft.

7. The hinge synchronous rotation mechanism according to claim 1, characterized in that: The opposing surfaces of adjacent plates are respectively provided with limiting blocks and limiting grooves; the adjacent plates are inserted into the limiting grooves through the limiting blocks to form limiting fit.

8. The hinge synchronous rotation mechanism according to claim 1, characterized in that: The flip assembly also includes a driving plate and a second rotating plate; the upper end of the first rotating plate forms a sliding compensation fit with the driving plate; the driving plate and the upper end of the second rotating plate form a rotating connection, and the lower end of the second rotating plate forms a virtual axis rotating connection with the mounting base.

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