WO2021073167A1

WO2021073167A1 - Two-axis passive outward-bending synchronous rotating mechanism

Info

Publication number: WO2021073167A1
Application number: PCT/CN2020/099970
Authority: WO
Inventors: 文秀江
Original assignee: 东莞市劲丰电子有限公司
Priority date: 2019-10-17
Filing date: 2020-07-02
Publication date: 2021-04-22
Also published as: CN110701182A

Abstract

A two-axis passive outward-bending synchronous rotating mechanism, comprising a structural body (1), the structural body (1) comprising a rotating shaft (2), the rotating shaft (2) being composed of a connection positioning moving block (3) and a rotating mechanism (4) combined and connected to same, the rotating mechanism (4) comprising a bilaterally symmetrical gear shaft (5) and a rounding mechanism (6), the gear shaft (5) and the rounding mechanism (6) implementing connection positioning and producing damping torsion, the gear shaft (5) implementing synchronisation by means of toothed engagement, the gear shaft (5) being connected to a clamping point moving frame (7) distributed symmetrically left-to-right to implement 0 degree and 180 degree clamping point positioning and self-locking, the gear shaft (5) being composed of an elastic member (51) with an arcuate back surface and a connecting column (52), and the clamping point moving frame (7) comprising a sliding groove (71); when the rotating mechanism (4) rotates as a whole to 180 degrees, the connecting column (52) slides in the sliding groove (71), and implements 180 degree support beyond the circular centre point.

Description

Two-axis passive outward-folding synchronous rotating mechanism

Technical field

The invention relates to the technical field of rotating shaft design, in particular to a two-axis passive outward-folding synchronous rotating mechanism.

Background technique

Folding screens at this stage specifically refer to the folding of the entire screen or the use of a split or split screen, and generally refers to the OLED screen. At present, the screen itself has met the bending needs, but it is necessary to directly associate the screen with electronic products, that is, to apply the screen to electronic products, such as mobile phones, not only for the high requirements of the screen, how to ensure that the screen is normal There is no malfunction during use, and it does not affect the normal bending of the screen. It needs a special mechanical structure to realize it.

According to the use of the folding screen, it can be divided into two types: internal folding and external folding. Both internal folding and external folding need to meet the above technical conditions. Correspondingly, the card point, limit, and damping torsion also need to be considered comprehensively, especially not because of auxiliary The layout of the structural parts affects the screen. The screen cannot be damaged or the shape of the entire electronic device. That is, without affecting the quality of the screen, the life of the screen and the overall product deformation, the auxiliary screen needs a rigorous hinge mechanism to achieve its functions. .

Considering comprehensively, the design of the rotating shaft needs to meet the bending needs, and the processing of the rotating shaft needs to consider the control and cost of machining accuracy. Therefore, the rotating shaft with low processing difficulty and relatively few parts can meet the applicable needs. Especially after assembly and use, the function of the shaft not only needs to meet its rotating function, but also needs to meet the user experience together with the flexible screen. This specifically means that when the product is bent and expanded to 180 degrees, there should be no shaking, otherwise it will affect the whole The product experience, comprehensive consideration, can only solve this problem by making improvements on the shaft.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings in the prior art and provide a two-axis passive outward-folding synchronous rotation mechanism.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A two-axis passive outward-folding synchronous rotating mechanism, including a structural main body, the structural main body including a rotating shaft, the rotating shaft is composed of a connecting positioning movable block and a rotating mechanism connected with it, the rotating mechanism includes a bilaterally symmetrical gear shaft and a circle Mechanism, the gear shaft and the enveloping mechanism realize connection positioning and generate damping torsion, and the gear shaft realizes synchronization through the meshing of the tooth profile, and the gear shaft is connected with a symmetrically distributed card point movable frame to achieve 0 degrees , 180-degree positioning locking point and self-locking, the gear shaft includes an elastic member on the back of the arc and a connecting column, the locking point movable frame includes a chute, when the rotation mechanism is rotated to 180 degrees, the connection The column slides in the chute and supports 180 degrees beyond the center point of the circle.

In particular, the connecting and positioning movable block includes a first central movable frame and a second central movable frame symmetrically distributed on both sides to achieve connection and positioning.

In particular, the chute movable block and the slider movable block are symmetrically distributed on both sides of the connecting positioning movable block, and the chute movable block and the slider movable block rotate synchronously in the semi-circular arc tube position, and the sliding of the slide block in the chute Realize screen buffering and 0 degree, 180 degree positioning card point and self-locking.

Particularly, the movable block of the slider is provided with a snap-point movable block, the snap-point movable block is respectively provided with a snap-point spring, and the movable block of the slider and the movable block of the chute are provided with torsion and elasticity. The slider spring.

In particular, the rotating mechanism further includes a plurality of combined and distributed circular arc movable frames, and the semi-circular arc tube positions of the circular arc movable frames are synchronously connected, and the limit function is realized at 180 degrees.

In particular, an end package is provided on one side of the outer edge of the rotating shaft, and the end package is composed of a plurality of groups of fan-shaped packages connected and positioned, and each of the fan-shaped packages is provided with a triangular arc for appearance protection. surface.

In particular, the rotating shaft includes multiple sets of rivets and screws for fixed connection.

In particular, the structure body includes a package body, the package body includes a bottom package body and a surface package body, the bottom package body includes a casing and multiple sets of appearance packages, a connection positioning package, and a limit package, so The surface packaging member is a combination of silicone rubber and steel sheet, the bending part of the steel sheet is provided with a net structure composed of regular penetrating holes, and the silica gel is covered and filled in the penetrating hole by including the rubber covering process.孔内。 In the hole.

Particularly, the connection of the casing further includes a pressure plate and a connecting plate for realizing connection and fixation, and the limiting package is connected in a semi-circular arc tube position, and assists the sliding of the sliding block to realize a 180-degree limit.

The beneficial effects of the present invention are: the two-axis passive outward-folding synchronous rotation mechanism provided by the present invention realizes bending through the rotation of the mechanism, and the gear shaft is connected with a symmetrically distributed locking point movable frame to realize 0 degree and 180 degree positioning locking points And self-locking, the gear shaft is composed of an elastic part on the back of the arc and a connecting column. The clamping point movable frame includes a sliding groove. When the rotating mechanism is rotated 180 degrees as a whole, the connecting column slides in the sliding groove. And beyond the center of the circle to achieve 180-degree support to meet the needs of folding screen rotation, assist in the design of multiple sets of limit and stuck point mechanisms, and enhance the role of 180-degree limit support.

Description of the drawings

Fig. 1 is a 180-degree overall structure diagram of the two-axis passive outward-folding synchronous rotation mechanism of the present invention.

Fig. 2 is a 0-degree overall structure diagram of the two-axis passive outward-folding synchronous rotation mechanism of the present invention.

Fig. 3 is a 90-degree state diagram of the two-axis passive outward-folding synchronous rotation mechanism of the present invention.

Fig. 4 is a structural diagram of the rotating shaft in the two-axis passive outward-folding synchronous rotating mechanism of the present invention.

Fig. 5 is one of the exploded views of the rotating shaft structure of the two-axis passive outward-folding synchronous rotating mechanism of the present invention.

Fig. 6 is a structural diagram of the rotating mechanism in the two-axis passive outward-folding synchronous rotating mechanism of the present invention.

Fig. 7 is an exploded view of the overall structure of the two-axis passive outward-folding synchronous rotation mechanism of the present invention.

Fig. 8 is a structural diagram of the surface package in the two-axis passive outward-folding synchronous rotation mechanism of the present invention.

Fig. 9 is an enlarged view of A in Fig. 8.

Detailed ways

The present invention will be further explained below in conjunction with the drawings in the specification:

Example 1:

As shown in Figures 1-9, the two-axis passive outward-folding synchronous rotation mechanism disclosed in this embodiment includes a structural body 1, which includes a rotating shaft 2, which is connected to a positioning movable block 3 and combined with it The rotating mechanism 4 is composed of a connected rotating mechanism 4. The rotating mechanism 4 includes a bilaterally symmetrical gear shaft 5 and an enveloping mechanism 6. The gear shaft 5 and the enveloping mechanism 6 are connected and positioned and generate damping torsion, and the gear shaft 5 passes The tooth profile meshing realizes synchronization. The gear shaft 5 is connected with a symmetrically distributed locking point movable frame 7 to realize 0-degree and 180-degree positioning and self-locking. The gear shaft 5 includes an elastic member on the back of the arc 51 and a connecting column 52. The card-point movable frame 7 includes a sliding groove 71. When the rotating mechanism 4 is rotated 180 degrees as a whole, the connecting column 52 slides in the sliding groove 71 and reaches 180 degrees beyond the center of the circle. Degree support.

The applicant declares that on the basis of the above-mentioned embodiments, those skilled in the art combine certain steps of the above-mentioned embodiments with the technical solutions in the content of the invention to produce a new method which is also one of the scope of the present invention. In order to make the description concise, this application will not list other implementations of these steps.

In the above-mentioned embodiment, the connecting and positioning movable block 3 includes a first central movable frame 31 and a second central movable frame 32 symmetrically distributed on both sides to achieve connection and positioning. The connecting and positioning movable block 3 is symmetrically distributed on both sides of the sliding groove movable block 8 and the sliding block movable block 9. The sliding groove movable block 8 and the sliding block movable block 9 rotate in a semi-circular arc position synchronously, and slide through the sliding block 81 The sliding of the slot 71 realizes screen buffering, 0-degree, 180-degree positioning card points and self-locking. The slider movable block 9 is provided with a card point movable block 10, the card point movable block 10 is respectively provided with a card point spring 11, and the slider movable block 8 and the sliding groove movable block 9 are provided with a realization Slider spring 12 of torsion and elasticity. The rotating mechanism 3 also includes a plurality of combined and distributed circular arc movable frames 13, the semi-circular arc tubes of the circular arc movable frames 13 are synchronously connected, and the limit function is realized at 180 degrees. An end package 14 is provided on one side of the outer edge of the rotating shaft 2. The end package 14 is composed of a plurality of groups of fan-shaped packages 15 arranged in connection and positioning, and each fan-shaped package 15 is provided with a protective device for appearance protection. Triangular arc surface 16. The rotating shaft 2 includes multiple sets of rivets 17 and screws 18 for realizing a fixed connection. The structural main body 1 includes a package body 19, the package body 19 includes a bottom package body 20 and a surface package body 21, the bottom package body 20 includes a housing 22 and multiple sets of appearance packages 23, a connection positioning package 24, The limiting package 25, the surface package 21 is a combination of silicone rubber 26 and a steel sheet 27, the bending part of the steel sheet 26 is provided with a net structure 28 composed of regular penetration holes 29, and the silica gel 26 is covered and filled in the penetration hole 29 by including a encapsulation process. The connecting part of the casing 22 also includes a pressure plate 30 and a connecting plate 31 for realizing connection and fixation. The limiting package 25 is connected in a semi-circular arc tube position and assists the sliding block to achieve a 180-degree limit.

The applicant further declares that the present invention uses the above-mentioned embodiments to illustrate the implementation method and device structure of the present invention, but the present invention is not limited to the above-mentioned embodiments, which does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the selected implementation method of the present invention, addition of steps, selection of specific methods, etc. fall within the scope of protection and disclosure of the present invention.

Technical principle of this embodiment:

The bending is realized by the rotation of the mechanism. The gear shaft is connected with a symmetrically distributed card-point movable frame to realize 0-degree and 180-degree positioning and self-locking. The gear shaft includes an elastic piece on the back of the arc and a connecting column. The card point movable frame includes a sliding groove. When the rotating mechanism is rotated to 180 degrees as a whole, the connecting column slides in the sliding groove and exceeds the center point of the circle to achieve 180-degree support, which meets the rotation requirements of the folding screen and assists in the design of multiple groups. Position and stuck point mechanism to enhance the 180-degree limit support function.

The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, without departing from the design spirit of the present invention, those of ordinary skill in the art will understand the structure, features and principles of the present invention. All equivalent changes or decorations made should fall within the protection scope of the patent application of the present invention.

Claims

The two-axis passive outward-folding synchronous rotation mechanism is characterized in that it includes a structural body, the structural body includes a rotating shaft, and the rotating shaft is composed of a rotating mechanism connected with a positioning movable block and a combined connection therewith, and the rotating mechanism includes a bilaterally symmetrical A gear shaft and an enveloping mechanism, the gear shaft and the enveloping mechanism are connected and positioned and generate damping torsion, and the gear shaft is synchronized by the meshing of the tooth profile, and the gear shaft is connected with symmetrically distributed locking points. The frame realizes 0-degree and 180-degree positioning and locking points and self-locking. The gear shaft includes an elastic piece on the back of the arc and a connecting column. The card-point movable frame includes a chute. When the rotating mechanism is rotated to 180 degrees as a whole , The connecting column slides in the chute, and supports 180 degrees beyond the center point of the circle.
The two-axis passive outward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The connection positioning movable block includes a first central movable frame and a second central movable frame symmetrically distributed on both sides to realize connection and positioning.
The two-axis passive outward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The connecting positioning movable block is symmetrically distributed on both sides of the sliding groove movable block and the sliding block movable block. The sliding groove movable block and the sliding block movable block rotate synchronously in the semi-circular arc tube position, and the sliding of the sliding block in the sliding groove realizes the screen buffering And 0 degree, 180 degree positioning card point and self-locking.
The two-axis passive outward-folding synchronous rotation mechanism according to claim 3, characterized in that:

The movable block of the sliding block is provided with a movable block with a clamping point, and the movable block with a clamping point is respectively provided with a clamping point spring, and a sliding block for realizing torsion and elasticity is arranged between the movable block of the sliding block and the movable block of the chute spring.
The two-axis passive outward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The rotating mechanism also includes a plurality of combined and distributed circular arc movable frames, the semi-circular arc tube positions of the circular arc movable frames are synchronously connected, and the limit function is realized at 180 degrees.
The two-axis passive outward-folding synchronous rotation mechanism according to claim 1, characterized in that:

An end package is provided on one side of the outer edge of the rotating shaft, and the end package is composed of a plurality of groups of fan-shaped packages connected and positioned, and each of the fan-shaped packages is provided with a triangular arc surface for appearance protection.
The connecting rod-type outward folding and rotating mechanism for polygon sampling according to claim 1, characterized in that:

The rotating shaft includes multiple sets of rivets and screws for realizing fixed connection.
The connecting rod-type outward folding and rotating mechanism for polygon sampling according to claim 1, characterized in that:

The structure body includes a package body, the package body includes a bottom package body and a surface package body, the bottom package body includes a casing and multiple sets of appearance packages, a connection positioning package, and a limit package, the surface package The piece is a combination of encapsulated silica gel and a steel sheet, the bent part of the steel sheet is provided with a net structure composed of regular penetration holes, and the silica gel is covered and filled in the penetration holes by including the encapsulation process.
The connecting rod-type outward-folding rotating mechanism for polygon sampling according to claim 8, characterized in that:

The connection of the casing also includes a pressure plate and a connecting plate for realizing connection and fixation, and the semi-circular arc tube position of the limit package is connected, and the sliding block is assisted to realize a 180-degree limit.