CN218817565U

CN218817565U - Bidirectional long chain with synchronous gears

Info

Publication number: CN218817565U
Application number: CN202223525634.8U
Authority: CN
Inventors: 文秀江
Original assignee: Dongguan Jinfeng Electronics Co Ltd
Current assignee: Dongguan Jinfeng Electronics Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-07
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a gear synchronous bidirectional long chain, which comprises a plurality of groups of first movable blocks and second movable blocks which are combined and connected up and down, wherein two adjacent groups of first movable blocks are reversely distributed in parallel, two adjacent groups of second movable blocks are reversely distributed in parallel to form the bidirectional long chain, and a synchronous mechanism is arranged between the first movable blocks and the second movable blocks; the synchronous mechanism consists of a plurality of groups of first racks, second racks and gears, wherein the first racks are provided with first sliding columns, and the second racks are provided with second sliding columns; a first curve groove is formed in the first movable block, and a second curve groove is formed in the second movable block; the first sliding column is in sliding fit with the first curve groove to realize linkage of the first rack and the first movable block, the second sliding column is in sliding fit with the second curve groove to realize linkage of the second rack and the second movable block, and a long chain type bending mechanism is formed by the movable blocks of two different structures to realize an unlimited length combination mode.

Description

Bidirectional long chain with synchronous gears

Technical Field

The utility model relates to a flexible screen complementary unit designs technical field, concretely relates to synchronous two-way long chain of gear.

Background

Compared with a traditional backlight source screen (LCD), the flexible screen (OLED) can self-illuminate, can realize excellent image quality through self-illuminating, and is natural in color development and free of harm of blue light; the screen can be flexibly applied and can be bent and folded; the mobile phone screen is flexible, light and thin, does not generate heat, is comfortable in hand feeling, can create various screen forms such as a flexible screen, a curved screen and a folding screen, and meets the development requirements of mobile phones. In the future, the flexible screen can be widely applied along with the continuous permeation of the personal intelligent terminal, and can also be used for various flexible screen electronic terminal products, such as: panel, display and intelligent wearing equipment etc..

Flexible screen generally comprises multilayer macromolecular material and OCA optical cement, and the complete flexible display screen that multilayer display material constitutes, has formed many neutral layers on its pile structure, because the relation that the multilayer was piled up, factors such as elastic change can appear in the different stromatolites of flexible display screen, and its motion trail of buckling must be anomalous, and when flexible screen used on folding screen cell-phone, need possess good plasticity and ductility, test lies in: after repeated stretching and compression, whether the screen can still keep no crease and no damage; whether a circuit board and components in the mobile phone can withstand folding and bending and the like; secondly, the bending area of the whole screen of the foldable mobile phone is connected with the middle frame or the shell through a precise hinge to realize the bending and supporting of the screen; at the same time, the hinge is sufficiently durable and reliable to withstand twenty-thousand folds without error. The joint angle between the hinge and the screen is one of the technical difficulties of the foldable mobile phone, and the problems of low processing yield and high cost are urgently needed to be solved.

Combining the use of flexible screen at different electronic terminals, the mechanical structure that supports it and realizes the bending function also faces higher and higher requirements, under the prerequisite of highly adapting to screen performance itself, how to satisfy its bending function, needs special bending mechanism to realize.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the weak point among the prior art and provide the synchronous two-way long chain of gear.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the bidirectional long chain with synchronous gears comprises a plurality of groups of first movable blocks and second movable blocks which are combined and connected up and down, wherein two adjacent groups of the first movable blocks are distributed in a reverse parallel mode, two adjacent groups of the second movable blocks are distributed in a reverse parallel mode to form the bidirectional long chain, and a synchronous mechanism is arranged between the first movable blocks and the second movable blocks;

the synchronous mechanism consists of a plurality of groups of first racks, second racks and gears, wherein the first racks are provided with first sliding columns, and the second racks are provided with second sliding columns;

a first curve groove is formed in the first movable block, and a second curve groove is formed in the second movable block;

the first sliding column is in sliding fit with the first curve groove to realize linkage of a first rack and the first movable block, and the second sliding column is in sliding fit with the second curve groove to realize linkage of a second rack and the second movable block.

In one preferred scheme, two groups of first racks which interact with each other are symmetrically distributed in the reverse direction, and two groups of second racks which interact with each other are symmetrically distributed in the reverse direction.

In a preferred embodiment, the gear is arranged between the adjacent first rack and the second rack to realize meshing synchronization.

In one preferred scheme, a short pin shaft for realizing connection and positioning is arranged between the first racks.

In one preferred scheme, a long pin shaft for realizing connection and positioning is arranged between the second racks.

The beneficial effects of the utility model reside in that: the utility model provides a synchronous two-way long chain of gear, the movable block group through two kinds of not isostructures becomes long chain bending mechanism, adopt the sliding fit mode of round pin axle and curve groove to buckle and the orbit restraint, realize the compound mode of unlimited length, as long as increase or reduce the quantity of movable block just can satisfy the terminal application demand of different parameters, two-way long chain is constituteed in reality to the original paper design through reverse symmetry, inside meshing through gear and rack realizes the same, the design is nimble simple, the range of application is extensive, compare with traditional bending mechanism, this chain structure can realize buckling the rotation unit and all realize length control at the different angle of buckling, can not cause the secondary injury to the flexible screen because of folding many times at the in-process of buckling.

Drawings

FIG. 1 is a 180 degree structure diagram of a long chain structure in the example of this patent.

Fig. 2 is a 90-degree structural diagram of a long chain structure in the embodiment of the patent.

FIG. 3 is a 0 degree structural diagram of a long chain structure in the embodiment of this patent.

Fig. 4-5 are exploded views of the long chain structure in the embodiment of this patent.

FIGS. 6 to 9 are diagrams showing the composition of the long-chain partial structure in the examples of this patent.

FIG. 10 is a diagram of the first movable block in the long chain in the embodiment of this patent.

FIG. 11 is a diagram of the second movable block in the long chain in the embodiment of this patent.

Detailed Description

The invention is further described below with reference to the drawings in the specification:

example 1:

as shown in fig. 1 to 11, the bidirectional long chain with synchronous gears provided in this embodiment includes a plurality of groups of first movable blocks 1 and second movable blocks 2 connected in an up-down combination manner, two adjacent groups of first movable blocks 1 are distributed in parallel in an opposite direction, two adjacent groups of second movable blocks 2 are distributed in parallel in an opposite direction to form the bidirectional long chain, and a synchronization mechanism 3 is provided between the first movable blocks 1 and the second movable blocks 2; the synchronizing mechanism 3 is composed of a plurality of groups of first racks 4, second racks 5 and gears 6, the first racks 4 are provided with first sliding columns 41, and the second racks 5 are provided with second sliding columns 51; a first curve groove 11 is arranged on the first movable block 1, and a second curve groove 21 is arranged on the second movable block 2; the first sliding column 41 is in sliding fit with the first curved groove 11 to realize linkage of the first rack 4 and the first movable block 1, and the second sliding column 51 is in sliding fit with the second curved groove 21 to realize linkage of the second rack 5 and the second movable block 2.

In this embodiment, the two interacting sets of first racks 4 are symmetrically distributed in opposite directions, and the interacting sets of second racks 5 are symmetrically distributed in opposite directions. The gear 6 is arranged between the adjacent first rack 4 and the second rack 5 to realize meshing synchronization. And a short pin shaft 7 for realizing connection and positioning is arranged between the first racks 4. And a long pin shaft 8 for realizing connection and positioning is arranged between the second racks 5.

The embodiment is different from the conventional technology in that:

the long chain type bending mechanism for the movable blocks with two different structures is characterized in that a pin shaft and a curve groove are adopted to bend and constrain a track in a sliding fit mode, an unlimited long combination mode is realized, the terminal application requirements of different parameters can be met as long as the number of the movable blocks is increased or reduced, a bidirectional long chain is formed by reverse symmetrical original design, the inside meshing of a gear and a rack is realized together, the design is flexible and simple, the application range is wide, compared with the traditional bending mechanism, the chain type structure can realize that the bending rotation unit realizes length control at different bending angles, and secondary damage can not be caused to a flexible screen due to multiple times of folding in the bending process.

It is right only to go up the preferred embodiment of the utility model discloses a it is not right the utility model discloses a scope is injectd, the event is not deviating from the utility model relates to an under the prerequisite of spirit, ordinary engineering technical personnel in the field is right the equivalent change or the decoration that structure, characteristic and principle do, all should fall into the utility model discloses the protection within range of applying for a patent.

Claims

1. Synchronous two-way long chain of gear, its characterized in that: the device comprises a plurality of groups of first movable blocks and second movable blocks which are combined and connected up and down, wherein two adjacent groups of the first movable blocks are distributed in a reverse parallel mode, two adjacent groups of the second movable blocks are distributed in a reverse parallel mode to form a bidirectional long chain, and a synchronizing mechanism is arranged between the first movable blocks and the second movable blocks;

2. The bi-directional chain for gear synchronization of claim 1, wherein:

two groups of first racks which are interacted are reversely and symmetrically distributed, and two groups of second racks which are interacted are reversely and symmetrically distributed.

3. The bi-directional chain for gear synchronization of claim 1, wherein:

the gear is arranged between the adjacent first rack and the second rack to realize meshing synchronization.

4. The bi-directional chain for gear synchronization of claim 1, wherein:

and a short pin shaft for realizing connection and positioning is arranged between the first racks.

5. The bi-directional chain for gear synchronization of claim 1, wherein:

and a long pin shaft for realizing connection and positioning is arranged between the second racks.