CN214888320U

CN214888320U - Novel screen folding mechanism

Info

Publication number: CN214888320U
Application number: CN202120512993.6U
Authority: CN
Inventors: 王鹤
Original assignee: Tianjin Yujin Robot Technology Co ltd
Current assignee: Tianjin Yujin Robot Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-26
Anticipated expiration: 2031-03-11

Abstract

The utility model provides a novel screen folding mechanism, which comprises a left hinge, a right hinge, a left expansion plate, a right expansion plate, a fixed column cover plate, a pin column, a first connecting rod and a second connecting rod; the left end of the left hinge is provided with a sliding table, the right end of the left hinge is provided with a left hinge guide tooth, the upper end and the lower end of the sliding table are oppositely provided with two sliding grooves for sliding the left expansion plate, and the upper surface of the sliding table is provided with an elastic clamping structure and a left hinge transmission rack; the right end of the left expansion plate is a linkage section, and a linkage rack is arranged on the bottom surface of the linkage section; the left end of the first connecting rod is rotatably connected with a linkage gear, and the right end of the first connecting rod is provided with a first meshing gear; the right hinge is symmetrical to the left hinge, the right expansion plate is symmetrical to the left expansion plate in structure, a second meshing gear is arranged at the left end of the second connecting rod, the right end of the second connecting rod is rotatably connected with another linkage gear, and the first connecting rod is meshed with the second connecting rod. The utility model discloses simplify the structure when improving the rotatory feeling of screen, very big reduction manufacturing cost.

Description

Novel screen folding mechanism

Technical Field

The utility model belongs to the technical field of communication, especially indicate a novel screen folding mechanism.

Background

The foldable mobile phone is just like a transformer, the screen still has the size of the traditional mobile phone when the foldable mobile phone is closed, the foldable mobile phone is convenient to carry, and the foldable mobile phone becomes a tablet personal computer when the foldable mobile phone is opened, so that the foldable mobile phone has functions of entertainment and office, meets the demand that consumers seek portability and various and unified functions at present, and is a future development trend of smart phones. Besides that the flexible AMOLED screen is a breakthrough key of a folding mobile phone, the folding structure of the screen is also a key point of the future product technology improvement. After the mobile phones are overlapped, the bending part of the screen still needs to keep a certain angle R, because the inner side of the bending can be slightly lengthened in relative distance and the outer side can be slightly shortened in relative distance, the folding structure also needs to keep synchronous change, otherwise the screen can be damaged. Chinese patent application No. 201910789479.4 discloses a folding display device and folding cell-phone, through setting up roating seat, driving medium, connecting seat, actuating lever and the interlock pole that links aforementioned three, make the connecting seat when rotating, make the actuating lever rotate naturally and drive the driving medium and remove at the roating seat, and then give the connecting seat through the linkage of interlock pole, make the position between the folding hinge both sides connecting seat produce relative change, and then adjust the folding screen and cause the length variation of inside and outside cambered surface because of folding, avoid damaging. However, because the position change between the connecting seats on the two sides is adjusted by the folding hinge, the folding hinge is easy to clamp during transmission, the rotation of the folding screen is not smooth, the operation experience of consumers is influenced, the structure of the folding chain is fine, a specific slide rail needs to be correspondingly arranged, and the processing cost of the folding chain and the slide rail is high, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

Although the folding mechanism that has now can adapt to folding screen folding back inside length diminish, this change of outside length increase, avoid damaging folding screen, but its rotation is not lubricated, the smoothness nature is poor, user experience is not good enough, and the processing cost is high moreover. In order to solve the above-mentioned defects, the utility model provides a screen folding mechanism.

The technical scheme of the utility model is realized like this:

a novel screen folding mechanism, comprising: the hinge comprises a left hinge, a right hinge, a left expansion plate, a right expansion plate, a fixed column cover plate, a pin column, a first connecting rod and a second connecting rod;

the left end of the left hinge is provided with a sliding table, the right end of the left hinge is provided with a left hinge guide tooth, the upper end and the lower end of the sliding table are oppositely provided with two sliding grooves, and the upper surface of the sliding table is provided with an elastic clamping structure and a left hinge transmission rack; the left expansion plate is arranged on the sliding table through an elastic clamping structure, the upper end and the lower end of the left expansion plate can slide or stay in the two sliding grooves, the right end of the left expansion plate is a linkage section, and the bottom surface of the linkage section is provided with a linkage rack; the left end of the first connecting rod is rotatably connected with a linkage gear, the right end of the first connecting rod is provided with a first meshing gear, and the linkage rack is in transmission with the left hinge transmission rack through the linkage gear;

the left hinge and the right hinge are symmetrical in structure, the right expansion plate and the left expansion plate are symmetrical in structure, the connection mode of the right expansion plate and the right hinge is the same as that of the left expansion plate and the left hinge, a second meshing gear is arranged at the left end of a second connecting rod, the right end of the second connecting rod is rotatably connected with another linkage gear, and the first connecting rod and the second connecting rod are meshed through a first meshing gear and a second meshing gear to realize transmission;

the fixed column comprises a connecting column, the upper surface of the connecting column is a plane, a containing groove used for containing a first meshing gear and a second meshing gear is formed in the lower bottom surface of the connecting column, the first meshing gear and the second meshing gear are respectively in rotatable connection with the containing groove, a pin fixing seat is arranged below the connecting column, the connecting column is arranged on a left hinge and a right hinge in a pressing mode, a slide way is formed between a fixed column cover plate and the bottom surface of the connecting column after fixed connection, the pin penetrates through the pin fixing seat and is arranged in the slide way, and the left hinge and the right hinge are respectively in sliding fit with the pin.

Preferably, left hinge direction tooth includes the first direction tooth of left hinge, left hinge second direction tooth and left hinge third direction tooth, and it is used for the breach that the head rod wore out to not connect the formation between the first direction tooth of left hinge and the left hinge second direction tooth.

More preferably, the fixed column cover plate comprises a first cover plate and a second cover plate, a first pressing strip is arranged at one end, adjacent to the second cover plate, of the first cover plate, and a second pressing strip is arranged at one end, adjacent to the first cover plate, of the second cover plate.

Most preferably, the elastic clamping structure comprises a containing part, a wheel rim installing shaft, a wheel rim, a pressing platform and elastic pieces, wherein the wheel rim installing shaft, the wheel rim, the pressing platform and the elastic pieces are arranged in the containing part; the bottom surfaces of the upper end and the lower end of the left expansion plate are respectively provided with a slide way, the inner side surface of the slide way at the upper end is provided with a fixing nest, and the left expansion plate is clamped into the fixing nest through the upper part of the rim to realize the connection with the sliding table.

The utility model discloses a gear drive makes the upper and lower surface of screen can take place relative length change along with different folding angles, keeps relative position unchangeable then with the screen, can keep the screen flat at any time in the upset. Compared with the prior art, the utility model discloses simplify the structure when improving the rotatory feeling of screen, very big reduction manufacturing cost. The utility model is suitable for an including folding cell-phone, any needs carry out folding electronic product to the screen.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of the components of the present invention;

fig. 2 is a first perspective view of the present invention;

fig. 3 is a second perspective view of the present invention.

In the figure: 1. a left hinge; 11. a sliding table; 111. a chute; 112. a receptacle portion; 113. a left hinge transmission rack; 114. a wheel rim mounting shaft; 115. a rim; 116. pressing the table; 117. an elastic member; 12. a first guide tooth of the left hinge; 13. a second guide tooth of the left hinge; 14. a third guide tooth of the left hinge; 2. a right hinge; 3. a left expansion plate; 31. a linkage section; 32. a linkage gear; 4. a right expansion plate; 5. fixing a column; 51. a pin fixing seat; 52. connecting columns; 53. a containing groove; 6. a fixed column cover plate; 61. a first cover plate; 611. a first compression bar; 62. a second cover plate; 621. a second pressing strip; 7. a first connecting rod; 71. a first meshing gear; 8. a second connecting rod; 81. a second meshing gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown collectively in fig. 1-3: a novel screen folding mechanism, comprising: the hinge comprises a left hinge 1, a right hinge 2, a left expansion plate 3, a right expansion plate 4, a fixed column 5, a fixed column cover plate 6, a pin column, a first connecting rod 7 and a second connecting rod 8;

the left end of the left hinge 1 is provided with a sliding table 11, the right end of the left hinge 1 is provided with left hinge guide teeth, the upper end and the lower end of the sliding table 11 are oppositely provided with two sliding grooves 111, and the upper surface of the sliding table 11 is provided with an elastic clamping structure and a left hinge transmission rack 113; the left expansion plate 3 is arranged on the sliding table 11 through an elastic clamping structure, the upper end and the lower end of the left expansion plate 3 can slide or stay in the two sliding grooves 111, the right end of the left expansion plate 3 is a linkage section 31, and the bottom surface of the linkage section 31 is provided with a linkage rack; the left end of the first connecting rod 7 is rotatably connected with a linkage gear 32, the right end of the first connecting rod is provided with a first meshing gear 71, and the linkage rack is in transmission with the left hinge transmission rack 113 through the linkage gear 32;

the structure of the right hinge 2 is symmetrical to that of the left hinge 1, the structure of the right expansion plate 4 is symmetrical to that of the left expansion plate 3, the connection mode of the right expansion plate 4 and the right hinge 2 is the same as that of the left expansion plate 3 and the left hinge 1, the left end of the second connecting rod 8 is provided with a second meshing gear 81, the right end of the second connecting rod 8 is rotatably connected with another linkage gear 32, and the first connecting rod 7 is meshed with the second connecting rod 8 through the first meshing gear 71 and the second meshing gear 81 to realize transmission;

the fixed column 5 comprises a connecting column 52, the upper surface of the connecting column 52 is a plane, a containing groove 53 for containing a first meshing gear 71 and a second meshing gear 81 is formed in the lower bottom surface of the connecting column 52, the first meshing gear 71 and the second meshing gear 81 are respectively rotatably connected with the containing groove 53, a pin fixing seat 51 is arranged below the connecting column 52, the connecting column 52 is pressed on the left hinge 1 and the right hinge 2, a slide way is formed after the fixed column cover plate 6 is fixedly connected with the bottom surface of the connecting column 52, the pin penetrates through the slide way through the pin fixing seat 51, and the left hinge 1 and the right hinge 2 are respectively in sliding fit with the pin.

The working principle is as follows: the below of left hinge 1 forms lower left connecting seat, the upper left connecting seat is formed to the left expansion plate 3 of top, when left hinge 1 rotates downwards, left hinge transmission rack 113 drives linkage gear 32 and rotates, then drive the direction motion of linkage section 31 to being close to fixed column 5 with linkage gear 32 meshing, left expansion plate inward movement has finally been realized, the extension of slight relative distance takes place for lower left connecting seat (the outside of corresponding bending), the shortening of slight relative distance takes place for upper left connecting seat (the inboard of corresponding bending), change when bending with the screen keeps synchronous, help constantly to keep the screen of folding screen flat. The structure of the right hinge 2 is symmetrical to that of the left hinge 1, the distance adjusting mechanism is the same, and the change can be generated during rotation. Because the transmission is realized between the first connecting rod 7 and the second connecting rod 8 through the meshing of the first meshing gear 71 and the second meshing gear 81, the left hinge 1 and the right hinge 2 can rotate at the same angle.

As a preferred technical scheme, the utility model discloses a further embodiment, left hinge direction tooth includes the first direction tooth 12 of left hinge, left hinge second direction tooth 13 and left hinge third direction tooth 14, and left hinge first direction tooth 12 and left hinge second direction tooth 13 between do not throw out, the certain distance in interval forms a breach that is used for head rod 7 to wear out. Similarly, the slots for inserting the left hinge guide teeth and the right hinge guide teeth are arranged below the fixing column 5, the specific number and structure of the slots are determined according to the number and structure of the left hinge guide teeth (the number and structure of the right hinge guide teeth are consistent with those of the left hinge guide teeth), and the technical personnel in the field can flexibly select the slots according to the actual needs,

as a preferred technical solution, in another embodiment of the present invention, the fixing column cover plate 6 includes a first cover plate 61 and a second cover plate 62, a first pressing strip 611 is disposed at one end of the first cover plate 61 adjacent to the second cover plate 62, and a second pressing strip 621 is disposed at one end of the second cover plate 62 adjacent to the first cover plate 61. The first pressing strip 611 and the second pressing strip 621 are arranged to improve the stability of the connection between the fixing column cover plate 6 and the bottom surface of the connecting column 52, and then the accommodating groove 53 for accommodating the first engaging gear 71 and the second engaging gear 81 can be limited.

As a preferred technical solution, in another embodiment of the present invention, the elastic clamping structure includes a receiving portion 112, a rim mounting shaft 114, a rim 115, a pressing platform 116 and elastic members 117, the rim mounting shaft 114, the rim 115, the pressing platform 116 and the elastic members 117 are disposed in the receiving portion 112, a notch is disposed at an upper portion of the receiving portion 112, the rim 115 is disposed adjacent to the notch through the rim mounting shaft 114, the upper portion of the rim 115 passes through the notch and is located outside the receiving portion 112, a lower portion of the rim is in contact with one end of the pressing platform 116, and the elastic members 117 are disposed at the other end of the pressing platform 116; the bottom surfaces of the upper end and the lower end of the left expansion plate 3 are respectively provided with a slide way, the inner side surface of the slide way at the upper end is provided with a fixing socket, and the left expansion plate 3 is clamped into the fixing socket through the upper part of the rim 115 to realize the connection with the sliding table 11. The setting purpose of the elastic clamping structure is as follows: firstly, in order to realize the connection between the left expansion plate 3 and the sliding table 11 of the left hinge 1 (or the connection between the right expansion plate 4 and the corresponding sliding table on the right hinge 2); secondly, when the left expansion plate 3 slides laterally on the sliding table 11, the upper portion of the rim 115 compresses the slide way so that the upper and lower ends of the left expansion plate 3 are elastically clamped in the sliding groove 111 to slide.

As shown in fig. 2 (front perspective view) and fig. 3 (rear perspective view): in order to connect with the screen, a plurality of welding holes used for connecting with the screen, the circuit board and the like and waist-shaped holes convenient to follow the parts are arranged on the left expansion plate 3, the right expansion plate 4 and the fixing column 5, so that description is omitted, the positions of various holes are not limited, and the holes can be flexibly arranged according to actual needs. These are not intended to be the scope of the invention as claimed.

The above description is only a preferred embodiment of the present invention, and the terms "left", "right", "up", "down", and the like are used herein for convenience of describing the structure of the present invention and are not intended to limit the present invention; the structures not described in detail above all adopt the prior art that can realize the functions; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel screen folding mechanism which characterized in that: the method comprises the following steps: the hinge comprises a left hinge (1), a right hinge (2), a left expansion plate (3), a right expansion plate (4), a fixed column (5), a fixed column cover plate (6), a pin column, a first connecting rod (7) and a second connecting rod (8);

a sliding table (11) is arranged at the left end of the left hinge (1), left hinge guide teeth are arranged at the right end of the left hinge, two sliding grooves (111) are oppositely arranged at the upper end and the lower end of the sliding table (11), and an elastic clamping structure and a left hinge transmission rack (113) are arranged on the upper surface of the sliding table (11); the left expansion plate (3) is arranged on the sliding table (11) through the elastic clamping structure, the upper end and the lower end of the left expansion plate (3) can slide or stay in the two sliding grooves (111), the right end of the left expansion plate (3) is provided with a linkage section (31), and the bottom surface of the linkage section (31) is provided with a linkage rack; the left end of the first connecting rod (7) is rotatably connected with a linkage gear (32), the right end of the first connecting rod is provided with a first meshing gear (71), and the linkage rack is in transmission with a left hinge transmission rack (113) through the linkage gear (32);

the right hinge (2) is symmetrical to the left hinge (1), the right expansion plate (4) is symmetrical to the left expansion plate (3), the right expansion plate (4) is connected with the right hinge (2) in the same way as the left expansion plate (3) is connected with the left hinge (1), a second meshing gear (81) is arranged at the left end of a second connecting rod (8), the right end of the second connecting rod (8) is rotatably connected with another linkage gear (32), and the first connecting rod (7) is meshed with the second connecting rod (8) through a first meshing gear (71) and a second meshing gear (81) to realize transmission;

the fixing column (5) comprises a connecting column (52), the upper surface of the connecting column (52) is a plane, a containing groove (53) for containing a first meshing gear (71) and a second meshing gear (81) is formed in the lower bottom surface of the connecting column (52), the first meshing gear (71) and the second meshing gear (81) are rotatably connected with the containing groove (53) respectively, a pin column fixing seat (51) is arranged below the connecting column (52), the connecting column (52) is pressed on a left hinge (1) and a right hinge (2), a sliding channel is formed after the fixing column cover plate (6) is fixedly connected with the bottom surface of the connecting column (52), the pin column penetrates through the pin column fixing seat (51) and is arranged in the sliding channel, and the left hinge (1) and the right hinge (2) are in sliding fit with the pin column respectively.

2. The novel screen folding mechanism of claim 1, characterized in that: the left hinge guide tooth comprises a left hinge first guide tooth (12), a left hinge second guide tooth (13) and a left hinge third guide tooth (14), and a notch used for enabling the first connecting rod (7) to penetrate out is formed by the left hinge first guide tooth (12) and the left hinge second guide tooth (13) in a non-connected mode.

3. The novel screen folding mechanism of claim 1, characterized in that: the fixed column cover plate (6) comprises a first cover plate (61) and a second cover plate (62), a first pressing strip (611) is arranged at one end, adjacent to the second cover plate (62), of the first cover plate (61), and a second pressing strip (621) is arranged at one end, adjacent to the first cover plate (61), of the second cover plate (62).

4. The novel screen folding mechanism of any one of claims 1 to 3, characterized in that: the elastic clamping structure comprises an accommodating part (112), a rim mounting shaft (114), a rim (115), a pressing table (116) and elastic pieces (117), wherein the rim mounting shaft (114), the rim (115), the pressing table (116) and the elastic pieces (117) are arranged in the accommodating part (112), a notch is formed in the upper part of the accommodating part (112), the rim (115) is arranged close to the notch through the rim mounting shaft (114), the upper part of the rim (115) penetrates through the notch and is positioned outside the accommodating part (112), the lower part of the rim (115) is in contact with one end of the pressing table (116), and the elastic pieces (117) are arranged at the other end of the pressing table (116); the bottom surfaces of the upper end and the lower end of the left expansion plate (3) are respectively provided with a slide way, the inner side surface of the slide way at the upper end is provided with a fixing socket, the left expansion plate (3) is clamped into the fixing socket through the upper part of the wheel rim (115) to realize the connection with the sliding table (11).