CN216430257U

CN216430257U - Axial friction type double-shaft synchronous rotating hinge

Info

Publication number: CN216430257U
Application number: CN202122896684.6U
Authority: CN
Inventors: 高向东
Original assignee: Hangzhou Zhijian Technology Co ltd
Current assignee: Hangzhou Zhijian Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-03
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses an axial friction type double-shaft synchronous rotating hinge, which comprises a first gear shaft, a second gear shaft, a friction plate, a fixed seat and an intermediate gear; the first gear shaft and the second gear shaft are arranged in parallel, one end of the first gear shaft and one end of the second gear shaft penetrate through the fixed seat, and the tail end of the first gear shaft and one end of the second gear shaft are provided with the LCD bracket; the other ends of the first gear shaft and the second gear shaft are arranged on the friction plate and are in interference fit with the friction plate; the intermediate gear is arranged on the fixed seat, is positioned between the first gear shaft and the second gear shaft and is respectively meshed with the first gear shaft and the second gear shaft. The utility model has the advantages that: adopt overall structure design with the friction disc, adopt integrated into one piece, through gear shaft and friction disc interference fit, produce torsion under rotating, reach the torsion that the design needs, the assembly is simple, is favorable to improving the productivity.

Description

Axial friction type double-shaft synchronous rotating hinge

Technical Field

The utility model relates to an electronic product hinge technical field, concretely relates to synchronous pivoted hinge of axial friction formula biax.

Background

Mobile phones and portable devices are becoming more popular and mostly take the form of dual interfaces, including an operator interface and a display interface, e.g. a mobile computer device can be hinged to open both interfaces, one being an operator keyboard and the other being a display screen; most of the traditional hinges can only be opened at a certain angle, and the maximum opening angle does not exceed 180 degrees. In addition, the traditional hinge can generate torsion only through the extrusion rotation of the cam, the disc spring, the friction plate and the nut, and the traditional structural design is adopted, so that a large amount of manpower and production process control are needed, the production procedures are multiple, the productivity cannot be improved, and the mass production can be guaranteed only through a large amount of reworking.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem existing in the prior art, the utility model provides a structural design is reasonable, and can carry out 360 rotatory axial friction formula biax synchronous pivoted hinges.

The technical scheme of the utility model as follows:

an axial friction type double-shaft synchronous rotating hinge comprises a first gear shaft, a second gear shaft, a friction plate, a fixed seat and an intermediate gear; the first gear shaft and the second gear shaft are arranged in parallel, one end of the first gear shaft and one end of the second gear shaft penetrate through the fixed seat, and the tail end of the first gear shaft and one end of the second gear shaft are provided with the LCD bracket; the other ends of the first gear shaft and the second gear shaft are arranged on the friction plate and are in interference fit with the friction plate; the intermediate gear is arranged on the fixed seat, is positioned between the first gear shaft and the second gear shaft and is respectively meshed with the first gear shaft and the second gear shaft.

Furthermore, the friction plate comprises a friction plate main body and mounting sleeves arranged on two sides of the friction plate main body, a mounting through hole is formed in the center of each mounting sleeve, and deformation grooves are formed in the side faces of the mounting sleeves.

Further, the fixing base comprises a fixing base body and an installation bottom plate arranged on one side of the fixing base body, positioning holes are formed in the installation bottom plate, limiting installation holes are formed in two ends of the fixing base body respectively, and a U-shaped installation groove is formed in the middle of the upper end of the fixing base body.

Furthermore, the intermediate gear is arranged on the fixing seat through the fixing seat support, the fixing seat support comprises an installation flat plate and a gear positioning shaft vertically arranged on the bottom surface of the installation flat plate, one end of the installation flat plate is arranged in the U-shaped installation groove in a matched mode, and the gear positioning shaft is matched with the positioning hole.

Furthermore, the first gear shaft and the second gear shaft are identical in structure and respectively comprise a T-shaped limiting installation section, a gear section and a torsion matching section which are sequentially arranged.

Further, the hinge capable of rotating synchronously in the axial friction type double shafts further comprises a shell, the shell is wrapped on the peripheries of the first gear shaft, the second gear shaft, the friction plate, the fixing seat and the intermediate gear, and a support used for mounting the friction plate is arranged inside the shell.

The utility model has the advantages that:

1) adopt overall structure design with the friction disc, adopt integrated into one piece, through gear shaft and friction disc interference fit, produce torsion under rotating, reach the torsion that the design needs, the assembly is simple, is favorable to improving the productivity.

2) The hinge is simple in structure, complex structures such as a traditional cam and a traditional disc spring are omitted, production cost is reduced, and production benefits are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of a first or second gear shaft of the present invention;

FIG. 4 is a schematic view of the fixing base of the present invention;

FIG. 5 is a schematic structural view of the friction plate of the present invention;

FIG. 6 is a schematic view of the fixing base bracket of the present invention;

fig. 7 is a schematic structural diagram of the housing of the present invention;

in the figure: 1. an LCD support; 2. a housing; 201. a support; 3. a first gear shaft; 4. a second gear shaft; 5. a friction plate; 501. a friction plate main body; 502. installing a sleeve; 503. a deformation groove; 504. mounting through holes; 6. a stationary base support; 601. installing a flat plate; 602. a gear positioning shaft; 7. a fixed seat; 701. a holder body; 702. a U-shaped mounting groove; 703. mounting a bottom plate; 704. limiting the mounting hole; 705. positioning holes; 8. an intermediate gear; 9. a T-shaped limiting installation section; 10. a gear segment; 11. a torsion fit section.

Detailed Description

The invention is further described with reference to the accompanying drawings.

As shown in fig. 1 to 7, an axial friction type hinge with double shafts rotating synchronously comprises an LCD bracket 1, an outer shell 2, a bracket 201, a first gear shaft 3, a second gear shaft 4, a friction plate 5, a friction plate main body 501, a mounting sleeve 502, a deformation groove 503, a mounting through hole 504, a fixing seat bracket 6, a mounting plate 601, a gear positioning shaft 602, a fixing seat 7, a fixing seat main body 701, a U-shaped mounting groove 702, a mounting base plate 703, a limiting mounting hole 704, a positioning hole 705, an intermediate gear 8, a T-shaped limiting mounting section 9, a gear section 10 and a torque force matching section 11.

Example (b):

the utility model discloses a biax is synchronous to rotate to can rotate, stop at 0~360 arbitrary angles of degree.

The first gear shaft 3 and the second gear shaft 4 are arranged in parallel, one end of the first gear shaft 3 and one end of the second gear shaft 4 penetrate through the fixed seat 7, and the LCD bracket 1 is arranged at the tail end; the LCD supports at the tail ends of the two gear shafts are respectively used for connecting the two rotating interfaces; so as to realize the folding and turning functions.

The other ends of the first gear shaft 3 and the second gear shaft 4 are arranged on the friction plate 5 and are in interference fit with the friction plate 5; the torque force of the hinge reaches the torque force required by design by adjusting the interference magnitude between the gear shaft and the friction plate. The friction plate 5 adopts an integrally-formed MIM process, the friction plate 5 comprises a friction plate main body 501 and mounting sleeves 502 arranged on two sides of the friction plate main body 501, a mounting through hole 504 is formed in the center of each mounting sleeve 502, and the mounting through holes 504 of the two mounting sleeves 502 are respectively matched with the first gear shaft 3 and the second gear shaft 4; besides, the side surface of the mounting sleeve 502 is provided with a deformation groove 503, and the size of the deformation groove 503 can also adjust the torsion.

The intermediate gear 8 is arranged on the fixed seat 7 through the fixed seat bracket 6, and the intermediate gear 8 adopts a spiral gear or a turbine; the intermediate gear 8 is located between the first gear shaft 3 and the second gear shaft 4, and the intermediate gear 8 is meshed with the first gear shaft 3 and the second gear shaft 4 respectively. Under the rotation of the first gear shaft 3 or the second gear shaft 4, a linkage effect can be achieved through the intermediate gear 8.

The fixing seat 7 comprises a fixing seat main body 701 and an installation bottom plate 703 arranged on one side of the fixing seat main body 701, two ends of the fixing seat main body 701 are respectively provided with a limiting installation hole 704, the middle position of the upper end of the fixing seat main body 701 is provided with a U-shaped installation groove 702, and the bottom surface of the U-shaped installation groove 702 is provided with a threaded hole for installing and fixing the fixing seat support 6; the mounting base plate 703 is provided with a positioning hole 705.

The fixing seat support 6 comprises a mounting flat plate 601 and a gear positioning shaft 602 vertically arranged on the bottom surface of the mounting flat plate 601, wherein a counter bore is formed in one end of the mounting flat plate 601, and the end, with the counter bore, of the mounting flat plate 601 is arranged in the U-shaped mounting groove 702 in a matched mode and is fixed through screws; the gear positioning shaft 602 is inserted through the intermediate gear 8 and then engaged with the positioning hole 705, so as to limit the intermediate gear 8 between the mounting plate 601 and the mounting base plate 703.

The first gear shaft 3 and the second gear shaft 4 are identical in structure and respectively comprise a T-shaped limiting installation section 9, a gear section 10 and a torsion matching section 11 which are sequentially arranged, and a through hole is formed in the side face of the T-shaped limiting installation section 9 and is fixedly connected with the LCD bracket 1 through a rivet; the T-shaped limiting installation section 9 can be in limiting fit with a limiting installation hole 704 on the fixed seat 7; the gear section 10 is a helical gear or a worm; the torsion fitting section 11 is fitted to the fitting through-hole 504 of the friction plate 5.

The outer shell 2 is wrapped on the peripheries of the first gear shaft 3, the second gear shaft 4, the friction plate 5, the fixing seat 7 and the intermediate gear 8, a support 201 for mounting the friction plate 5 is arranged inside the outer shell 2, and the side face of the friction plate 5 can be fixed on the outer shell 2 through screws.

Above-mentioned embodiment is only the preferred embodiment of the utility model, and it is not right the utility model discloses technical scheme's restriction, as long as do not pass through creative work can be realized on the basis of above-mentioned embodiment's technical scheme, all should regard as falling into the utility model discloses a right protection within range.

Claims

1. An axial friction type double-shaft synchronous rotating hinge is characterized by comprising a first gear shaft (3), a second gear shaft (4), a friction plate (5), a fixed seat (7) and an intermediate gear (8); the first gear shaft (3) and the second gear shaft (4) are arranged in parallel, one end of each of the first gear shaft (3) and the second gear shaft (4) penetrates through the fixed seat (7), and the LCD bracket (1) is arranged at the tail end of each of the first gear shaft (3) and the second gear shaft; the other ends of the first gear shaft (3) and the second gear shaft (4) are arranged on the friction plate (5) and are in interference fit with the friction plate (5); the intermediate gear (8) is arranged on the fixed seat (7), the intermediate gear (8) is positioned between the first gear shaft (3) and the second gear shaft (4), and the intermediate gear (8) is respectively meshed with the first gear shaft (3) and the second gear shaft (4).

2. The axial friction type hinge with double shafts rotating synchronously as claimed in claim 1, wherein said friction plate (5) comprises a friction plate main body (501) and mounting sleeves (502) arranged at two sides of said friction plate main body (501), said mounting sleeve (502) has a mounting through hole (504) at the center, said mounting sleeve (502) has a deformation groove (503) at the side.

3. The axial friction type hinge with double shafts rotating synchronously as claimed in claim 1, wherein said fixing base (7) comprises a fixing base main body (701) and a mounting base plate (703) disposed on one side of the fixing base main body (701), said mounting base plate (703) is provided with a positioning hole (705), two ends of the fixing base main body (701) are respectively provided with a limiting mounting hole (704), and a U-shaped mounting groove (702) is disposed at the middle position of the upper end of the fixing base main body (701).

4. An axial friction type hinge with double shafts rotating synchronously as claimed in claim 3, wherein said intermediate gear (8) is disposed on the fixing base (7) through the fixing base bracket (6), said fixing base bracket (6) comprises a mounting plate (601) and a gear positioning shaft (602) vertically disposed on the bottom surface of the mounting plate (601), one end of the mounting plate (601) is disposed in the U-shaped mounting groove (702) in a matching manner, and said gear positioning shaft (602) is engaged with the positioning hole (705).

5. The axial friction type hinge with double shafts rotating synchronously as claimed in claim 1, wherein said first gear shaft (3) and said second gear shaft (4) have the same structure, and each comprises a T-shaped spacing mounting section (9), a gear section (10) and a torque fitting section (11) which are arranged in sequence.

6. The axial friction type hinge with double shafts rotating synchronously as claimed in claim 1, further comprising a housing (2), wherein the housing (2) covers the first gear shaft (3), the second gear shaft (4), the friction plate (5), the fixing seat (7) and the intermediate gear (8), and a bracket (201) for installing the friction plate (5) is arranged inside the housing (2).