CN100417858C

CN100417858C - Rotary hinge mechanism with double axis

Info

Publication number: CN100417858C
Application number: CNB2004100945892A
Authority: CN
Inventors: 刘应发
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2004-11-17
Filing date: 2004-11-17
Publication date: 2008-09-10
Anticipated expiration: 2024-11-17
Also published as: CN1779314A

Abstract

The present invention discloses a rotary hinge mechanism with double shafts, which can be used in an image-taking device. The hinge mechanism mainly comprises a fixing frame, a fixing body, a first rotating shaft, a second rotating shaft and a pressing plate, wherein the fixing body is arranged on the fixing frame, and a first assembling hole and a second assembling hole which is vertical to the first assembling hole are arranged on the fixing body; the first rotating shaft which is assembled on the fixing frame by passing through the first assembling hole of the fixing body is provided with two end parts, two grooves and a limit structure, wherein the two grooves are positioned between the two end parts, and the limit structure is used for connecting the two grooves; the second rotating shaft which is assembled on the fixing frame by passing through the second assembling hole of the fixing body is provided with two end parts and a polygon cylinder which is positioned between the two end parts and can be engaged with the grooves in the first rotating shaft; the pressing plate is assembled on the fixing frame and is fixedly connected with one end part of the second rotating shaft, and a spacing block and a spacing hole are arranged on the pressing plate.

Description

Rotary hinge mechanism with double axis

[technical field]

The present invention relates to a kind of rotary hinge mechanism with double axis, refer in particular to a kind of be installed between photographing apparatus and the display screen and make display screen can multi-angle the diaxon rotary hinge mechanism of rotation.

[background technique]

At present, the photographing apparatus of factor sign indicating number camera, digital code camera and so on can obtain higher image quality, but also it is all multi-functional to provide the user to do image preservation and editor etc., therefore replaces traditional camera and projection camera gradually.In digital photographic arrangement, more commonly on body frame, all be equipped with liquid crystal display panel as Viewfinder, so that the user confirms the content of photographing, and be the convenience that further strengthens its operation, and allowing the user have photographing space more freely, the display screen of digital photographic arrangement is designed to the structure that can axially rotate.

The rotary design of the display screen of above-mentioned digital photographic arrangement realizes by linkage, promptly between the body frame of display screen and photographing apparatus linkage is installed, and makes display screen to do axially rotation with respect to the body frame of photographing apparatus.Generally speaking, common axial rotation mode is broadly divided into following several: the rotation of the single axial of along continuous straight runs, the rotation of single axial vertically, and along the twin shaft of level and Vertical direction to rotation.But for the display screen of digital photographic arrangement, single axial rotating machinery still has certain narrow limitation for choosing of angle of shooting.Twin shaft has bigger degrees of freedom to rotating machinery to choosing of angle of shooting, but in actual use, because of rotating easily, the linkage of tool twin shaft spinfunction has some setbacks, locatees unstable situation, therefore the user also needs to help in addition this display screen, thereby make troubles to practical operation, and because cause fuselage to rock easily and influence shooting effect with the hand steered display screen of holding.

Therefore, be necessary to provide a kind of new rotary hinge mechanism with double axis to solve the existing in prior technology defective.

[summary of the invention]

First purpose of the present invention is to provide a kind of rotary hinge mechanism with double axis, and it is simple in structure, and twin shaft can rotate smoothly, and has tangible section sense in rotary course, but and after rotation stable position.

Second purpose of the present invention is to provide a kind of rotary hinge mechanism with double axis, and two rotating shafts of this mechanism can be meshing with each other and rotate smoothly, and it also has the effect of the misoperation of preventing.

The 3rd purpose of the present invention is to provide a kind of photographing apparatus with rotary hinge mechanism with double axis, and the display screen of this device can be rotated smoothly, and can stable position after rotation to guarantee the quality of photographing.

The 4th purpose of the present invention is to provide a kind of photographing apparatus with rotary hinge mechanism with double axis, and this mechanism can prevent display screen by misoperation, thereby guarantees photographing apparatus in use can not be damaged and have higher safety in utilization.

According to above-mentioned purpose of the present invention, the invention provides a kind of rotary hinge mechanism with double axis, it can be used on the photographing apparatus, this rotary hinge mechanism with double axis mainly includes second rotating shaft of first rotating shaft and and engagement perpendicular with first rotating shaft, wherein first rotating shaft has two end part and first engaging piece between two end part, first engaging piece is made up of two structural units that distribute along this rotating shaft at least, i.e. first structural unit and second structural unit, and the width dimensions of first structural unit is slightly less than the width dimensions of second structural unit, when first rotating shaft was rotated under external force, its first engaging piece can move switching at least between first structural unit and second structural unit; Second engaging piece that second rotating shaft also has two end part and also can be meshed with first engaging piece of first rotating shaft between two end part, second engaging piece has several structural units that distributes along this rotating shaft, and wherein the width dimensions of a part of structural unit is slightly less than the width dimensions of another part structural unit, and the undersized structural unit of this second engaging piece be can with first of first engaging piece, second structural unit is meshed, large-sized structural unit of second engaging piece then only can be meshed with second structural unit of first engaging piece, when second rotating shaft was rotated under external force, these structural units of its second engaging piece can alternately be switched.

When second structural unit of first engaging piece of first rotating shaft is meshed with large-sized structural unit of second engaging piece of second rotating shaft, because of size restrictions, second structural unit of first engaging piece of first rotating shaft is cannot be switched to first structural unit, reaches the effect that prevents misoperation in this way.

In addition when second rotating shaft is rotated under external force, each structural unit of its second engaging piece all can cooperate with the first engaging piece one after the other, and when the two adjacent structural units of second engaging piece carry out switch motion, obviously perception of operator so just can point out the user to finish the action of angle adjustment.

Between first structural unit of first engaging piece of above-mentioned first rotating shaft and second structural unit, be formed with a limiting structure that is connected this two structural unit at least.

First structural unit of first engaging piece of above-mentioned first rotating shaft and second structural unit are made up of two different adjacent grooves of axial width dimension, and limiting structure is made up of the sidewall that connects two grooves.

First structural unit of first engaging piece of above-mentioned first rotating shaft is a square groove, and its second structural unit is an arc groove, and its limiting structure then is one of them sidewall that is connected with square groove of arc groove.

Second engaging piece of above-mentioned second rotating shaft is a polygonal cylinder, several structural units of this polygonal cylinder include two arcuate flanks and two side planes at least, and the relative distance between two arcuate flanks is greater than the relative distance between two side planes.

Above-mentioned rotary hinge mechanism with double axis also includes a fixed base, this fixed base have first assembly hole, with the second perpendicular assembly hole of first assembly hole, and limited part, above-mentioned first rotating shaft is to be positioned in this first assembly hole, and above-mentioned second rotating shaft is to be positioned in this second assembly hole.

Above-mentioned rotary hinge mechanism with double axis also includes a pressing plate, and this pressing plate has an assembly hole, and this assembly hole can be passed in a wherein end of second rotating shaft, also is provided with limited part on the pressing plate and also can matches with the limited part on the fixed base.

On a wherein end of above-mentioned second rotating shaft, also be processed with a spacing hole, after this end is passed second assembly hole and the assembly hole on the pressing plate of fixed base successively, can penetrate in the spacing hole of its end by a latch.

Two side positions at first engaging piece of above-mentioned first rotating shaft are symmetrily processed with two annular grooves.

The limited part that is positioned on the said fixing seat includes two spacing holes, can pass this two spacing hole and is fastened on two annular grooves of first rotating shaft by two position-limited levers.

The limited part that is positioned on the said fixing seat also includes the spacing preiection of two symmetry arrangement in the side of second assembly hole of fixed base.

The limited part that is positioned on the above-mentioned pressing plate includes two spacing holes that can match with the spacing preiection on the fixed base.

The limited part that is positioned on the said fixing seat also includes a limiting stopper, and the limited part that is positioned on the pressing plate yet includes a limiting stopper, and this limiting stopper that is positioned on the pressing plate is vertical mutually with the bearing of trend of limiting stopper on being positioned at fixed base.

Above-mentioned rotary hinge mechanism with double axis is installed between the body frame and display screen of digital photographic arrangement, can provides more wide photographing space to the user, but also can obtain high-quality photographic picture.

Compared to prior art, rotary hinge mechanism with double axis of the present invention is by the structure that is meshed is set in two orthogonal rotating shafts, rotate smoothly to reach, positioning stablity, fool proof effect, and because second engaging piece of second rotating shaft has polygonal structure, thereby in the angle adjustment process, can produce certain section sense, has suggesting effect, linkage of the present invention has in addition also adopted some limit structures, can further improve whereby to use this mechanism stability and Security.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of rotary hinge mechanism with double axis of the present invention.

Fig. 2 A is the external form schematic representation that the photographing apparatus of rotary hinge mechanism with double axis of the present invention is installed, and the display screen shown in the figure is to be in closed condition.

Fig. 2 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in closed condition shown in Fig. 2 A.

Fig. 2 C is the closing axle of the linkage in Fig. 2 B and the meshing relation schematic representation of running shaft.

Fig. 3 A is on the basis shown in Fig. 2 A, and display screen turn 90 degrees around the closing axle dextrorotation and is the schematic representation of opening state.

Fig. 3 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in as shown in Figure 3A opening state.

Fig. 3 C is the closing axle of the linkage in Fig. 3 B and the meshing relation schematic representation of running shaft.

Fig. 4 A is on basis as shown in Figure 3A, the view of display screen when the running shaft dextrorotation turn 90 degrees.

Fig. 4 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in state shown in Fig. 4 A.

Fig. 4 C is the closing axle of the linkage in Fig. 4 B and the meshing relation schematic representation of running shaft.

Fig. 5 A is on basis as shown in Figure 3A, and display screen is rotated counterclockwise 90 view when spending around running shaft.

Fig. 5 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in state shown in Fig. 5 A.

Fig. 5 C is the closing axle of the linkage in Fig. 5 B and the meshing relation schematic representation of running shaft.

Fig. 6 A is on basis as shown in Figure 3A, and display screen is rotated counterclockwise 180 view when spending around running shaft.

Fig. 6 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in as shown in Figure 6A state.

Fig. 6 C is the closing axle of the linkage in Fig. 6 B and the meshing relation schematic representation of running shaft.

Fig. 7 A is on basis as shown in Figure 6A, and display screen is rotated counterclockwise 90 degree and is in the schematic representation of closed state around closing axle.

Fig. 7 B is that the position of each member of rotary hinge mechanism with double axis of the present invention concerns schematic representation when display screen is in state shown in Fig. 7 A.

Fig. 7 C is the closing axle of the linkage in Fig. 7 B and the meshing relation schematic representation of running shaft.

[embodiment]

Please refer to shown in Figure 1, rotary hinge mechanism with double axis 1 of the present invention mainly includes: fixing frame 10, fixed body 20, closing axle 30, running shaft 40, pressing plate 50 and spacing pressing plate 60, wherein fixing frame 10 is as the fixed base of closing axle 30 and running shaft 40 with fixed body 20 and makes its structure that is assembled into integral type, can be convenient to rotary hinge mechanism with double axis 1 in this way and be assembled on the photographing apparatus.

Said fixing frame 10 is to be frame-shaped structure, the side surface 13 that it has a upper surface 11, lower surface 12 and connects upper and lower surface, wherein in upper surface 11 be provided with two

spacing holes

14 and 15, be positioned at the center position of upper surface 11 assembly hole 16, be symmetricly set in the spacing preiection that is the

spherical crown shape

17 and 18 of assembly hole 16 both sides, and be positioned at the opposite side of this assembly hole 16 and the limiting stopper 19 of projection upwards.On lower surface 12, also be provided with and the spacing hole 14 of

upper surface

11 and 15 and assembly hole 16 corresponding structures.

Said fixing body 20 can be contained in the fixing frame 10, this fixed body 20 be provided with one run through its two relatively the surface first assembly hole 21, in its in addition two then be provided with on the surface relatively with the spacing hole 14 of fixing frame 10 with 15 and assembly hole 16 corresponding and run through this two surperficial relatively

spacing hole

22 and 23 and second assembly hole 24, and this second assembly hole 24 is perpendicular to first assembly hole 21.

Above-mentioned closing axle 30 is first rotating shafts, and it can pass first assembly hole 21 of fixed body 20.This rotating shaft is horizontal, and its two ends respectively are provided with a

mounting hole

31 and 32 as assembly department on it; Be processed with the groove 34 of a square groove 33 and the approximate circle arc adjacent with square groove 33 in the neutral position of first rotating shaft, two

grooves

33 and 34 are to distribute along this rotating shaft, and be to be arc transition between both bottom surfaces, wherein arc groove 34 width dimensions in the axial direction is bigger than square groove 33 width dimensions in the axial direction, therefore can formation sidewall 340 between arc groove 34 and

square groove

33 and 341 and both are connected, and this sidewall 340 is to be positioned on the arc groove 34, under specific circumstances, this

sidewall

340 and 341 will limit this closing axle 30 and rotate (knowing clearly as described later).Also be symmetrily processed with two

annular grooves

35 and 36 in the both sides of

groove

33 and 34.

Above-mentioned running shaft 40 is second rotating shafts, and itself and first rotating shaft (closing axle 30) are perpendicular.A wherein end of this running shaft 40 is provided with a mounting plane 41, is processed with three

mounting holes

42,43 and 44 on it; The other end of this running shaft 40 is processed to be similar to rectangular-shaped and forms a spacing hole 45 thereon, and second assembly hole 24 of fixed body 20 can be passed in this end of this running shaft 40; Also be processed to be similar to rectangular-shaped with as the engaging piece 46 that is meshed with first engaging piece (groove 33 and 34) of closing axle 30 near the place, neutral position in the summary of running shaft 40, this engaging piece 46 is to be second engaging piece, and it has two relative side planes 460 and two relative arcuate flanks 461, these side planes 460 and arcuate flanks 461 have all constituted the structural unit of second engaging piece, wherein the relative distance between the side plane 460 of engaging piece 46 just can be complementary with the width dimensions of the square groove 33 of first engaging piece, because of the relative distance between the side plane 460 is the width dimensions that equals arcuate flanks 461, so arcuate flanks 461 is just engageable in square groove 33.Because of the relative distance between the arcuate flanks 461 of engaging piece 46 bigger, and this relative distance is the width dimensions that equals side plane 460, only can be contained in the arc groove 34 of first engaging piece so side plane 460 can not be engaged in the square groove 33, can prevent misoperation (appearance aftermentioned) whereby.Between the engaging piece 46 of running shaft 40 and end, form the less cylindrical joint 47 of a diameter, can make that whereby the rotation of running shaft 40 is smooth.Certainly engaging piece 46 also can be processed into other polygonal cylinder (or prismatic) as required, and can regulate goes out more angle of swing whereby, and also can have certain section sense when the user rotates it.

Above-mentioned pressing plate 50 is the upper surfaces 11 that are posted by fixing frame 10, it is provided with the

spacing hole

52 and 53 that is positioned at these pressing plate 50 centers and the structure assembly hole 51 identical with the end profile of running shaft 40, is positioned at assembly hole 51 both sides and can matches with 18 with the spacing preiection 17 of fixing frame 10, and two

trips

54 and 55 that are positioned at pressing plate 50 edges.

Above-mentioned spacing pressing plate 60 is to be positioned at pressing plate 50 tops, the center also is provided with the structure assembly hole 61 identical with the end profile of running shaft 40, is provided with two draw-in grooves 62 that can match with 55 with the trip 54 of pressing plate 50 and the limiting stopper 64 of 63 and one horizontal projection in the edge of this spacing pressing plate 60.This limiting stopper 64 is with

aforementioned spacing preiection

17 and 18, limiting stopper 19 and

spacing hole

52 and 53 limited parts as running shaft 40 rotations.

During assembling, fixed body 20 is contained in the fixing frame 10 to form fixed base, closing axle 30 penetrates in first assembly hole 21 of fixed body 20, two position-limited levers 70 and 71 pass the spacing hole 14 that is positioned on the

fixing frame

10 and 15 and be positioned at

spacing hole

22 and 23 on the fixed body respectively, final its body of rod middle part contacts with 36 with the annular groove face 35 of closing axle 30, makes closing axle 30 be positioned in the fixed body 20 in this way.Running shaft 40 is to pack into from the below of fixing frame 10, the

assembly hole

16 and 24 on fixing frame 10 and the fixed body 20 is passed on its top, and further

pass assembly hole

51 and 61 on pressing plate 50 and the spacing pressing plate 60, pass the spacing hole 45 of these running shaft 40 ends by a resilient pin 73 then and be positioned on the fixed base, wherein a wherein side 461 (460) of the engaging piece 46 of this running shaft 40 is to be meshed with a wherein groove 33 (34) of closing axle 30, and because be arc transition between two

grooves

33 and 34, therefore the closing axle 30 that is meshed with running shaft 40 can switch (being detailed later) between two

grooves

33 and 34, and when engaging piece 46 be when being meshed with arc groove 34, this running shaft 40 can arbitrarily rotate in this arc groove 34.The

spacing preiection

17 and 18 that is arranged on the upper surface 11 of fixing frame 10 is the

spacing holes

52 and 53 that are contained in pressing plate 50, on the pressing plate 50 trip 54 with 55 then with spacing pressing plate 60 on draw-in groove 62 match with 63, two pressing plates 50 can start with 60 whereby.

Please refer to the external structure schematic representation of the photographing apparatus 90 shown in Fig. 2 A, rotary hinge mechanism with double axis 1 of the present invention is to be installed between the body frame 91 and display screen 92 of photographing apparatus 90 by the mounting hole on it 31,32,42,43 and 44 (shown in Fig. 2 B), can make display screen 92 with respect to body frame 91 rotations whereby, thus the function that can provide multi-angle to take.Wherein, described

mounting hole

31 and 32 is to cooperate with corresponding construction on the body frame 91, and mounting

hole

42,43 and 44 is to cooperate with corresponding construction on the display screen.Because of Fig. 2 A only is the external structure schematic representation of photographing apparatus 90, so linkage is that to be hidden in device 90 inner and fail to show.And when the display screen 92 of photographing apparatus 90 is in closed condition shown in Fig. 2 A, the position relation of each member of rotary hinge mechanism with double axis of the present invention is shown in Fig. 2 B and 2C, a wherein arcuate flanks 461 of the engaging piece 46 of the running shaft 40 of rotary hinge mechanism with double axis 1 wherein of the present invention is to match with the square groove 33 of first engaging piece of closing axle 30, and the spacing preiection 17 that is positioned on the fixing frame 10 of linkage 1 then matches with 53 with the spacing hole 52 of pressing plate 50 with 18.Thin bilge construction is please in conjunction with the sign among Fig. 1.

Please join shown in Fig. 3 A to 3C, the display screen 92 of photographing apparatus 90 can turn 90 degrees and is unlocked around closing axle 30 dextrorotations, wherein the closing axle 30 of linkage 1 has also rotated 90 degree, and its first engaging piece is converted to arc groove 34 from square groove 33, whereby can be so that closing axle 30 can successfully rotate (appearance aftermentioned) around running shaft 40 in rotation subsequently.In addition, because of the state of running shaft 40 does not change, therefore the engaging piece 46 of the running shaft 40 that matches with arc groove 34 this moment remains an arcuate flanks 461.

When display screen 92 clockwise rotates 90 when spending around running shaft 40, the working condition of the configuration of photographing apparatus 90 and linkage 1 thereof is shown in Fig. 4 A to 4C, wherein running shaft 40 also is shown screen 92 drives and 90 degree that turned clockwise, and the state that the arcuate flanks 461 that feasible script is the engaging piece 46 of running shaft 40 matches with the arc groove 34 of first rotating shaft is because the state that the side plane 460 of engaging piece 46 matches with arc groove 34 is changed in rotation.In this rotary course,, and can produce certain section sense and allow the user perceive because of engaging piece 46 has carried out switching to from arcuate flanks 461 action of side plane 460.In addition, because the relative distance of the arcuate flanks 461 of engaging piece 46 is the width dimensions greater than square groove 33 on the closing axle 30, therefore when linkage 1 be that the side plane 460 that is in running shaft 40 is during with the state that the arc groove 34 of closing axle 30 matches, because closing axle 30 is limited the restriction of structure (sidewall 340 and 341), and can not be switched to square groove 33 because being subjected to unexpected active force, promptly this moment, closing axle 30 can not be rotated, can prevent that like this display screen 92 is rotated and damages this device 90 around closing axle 30 at this moment, linkage 1 promptly of the present invention has fool proof effect.

In addition, after running shaft 40 clockwise rotates 90 degree, two pressing plates 50 of linkage 1 also can be followed with 60 and clockwise rotate 90 degree, and a side that is positioned at the limiting stopper 64 on the spacing pressing plate 60 this moment will connect with a side of limiting stopper 19 on the fixing frame 10, can prevent that by this structure display screen 92 from excessively being rotated by the user.Simultaneously, will make that by the moment of torsion that produced of rotation being positioned at

spacing hole

52 and 53 on the pressing plate 50 crosses

spacing preiection

17 and 18 on the fixing frame 10.

It should be noted that display screen 92 needs certain external force around running shaft 40 rotations and helps, could make engaging piece 46 finish the action that switches to side plane 460 from arcuate flanks 461, but if the dynamics of rotation is too little, this action will be difficult to finish.But if the moment of torsion that rotation produces is too little,

spacing hole

52 and 53 will be difficult to be separated with

spacing preiection

17 and 18, make that by this design display screen in use can stable position, and can be, thereby can guarantee that photographing apparatus 90 can obtain high-quality photographic picture because of small vibration or its working state of influence of vibration.

Please refer to shown in Fig. 5 A to 5C, it has disclosed display screen 92 and has rotated counterclockwise 90 situations when spending around running shaft 40, wherein state is similar shown in the engagement of the closing axle 30 of linkage 1 and running shaft 40 and the above-mentioned Fig. 4 C, and has the effect that misoperation is felt and prevented to certain section equally.Difference is: because of two

pressing plates

50 and 60 of linkage 1 also along with running shaft 40 has rotated counterclockwise 90 degree, and do not contact this moment between the limiting stopper 19 on the limiting stopper 64 on the spacing pressing plate 60 and the fixing frame 10, and still have a segment distance.Therefore, display screen 92 can also continue to rotate counterclockwise around running shaft 40.

The angle that is rotated counterclockwise around running shaft 40 when display screen 92 reaches 180 when spending, shown in Fig. 6 A to 6C, one side of the limiting stopper 64 on the spacing pressing plate 60 will with the mutual butt of a side of limiting stopper 19 on the fixing frame 10, and the spacing preiection 17 on the fixing frame 10 of linkage 1 cooperates (please cooperate consult shown in Figure 1) once more with 53 with the spacing hole 52 of pressing plate 50 with 18.In addition, because of first engaging piece that matches with closing axle 30 on the running shaft under this state 40 is an arcuate flanks 461, therefore display screen can also be rotated counterclockwise 90 degree and be closed state around closing axle 30 this moment, shown in Fig. 7 A to 7C.But, under the state shown in Fig. 7 A to 7C,, therefore still can work on because of display screen 92 is toward the outer side.

When the display screen 92 of photographing apparatus 90 need be closed, can be on the basis shown in Fig. 7 A to 7C, display screen 92 is clockwise rotated 90 degree along closing axle 30, clockwise rotated 180 o'clock along running shaft 40 then, rotating counterclockwise 90 degree along closing axle 30 more at last can close.

From above-mentioned analysis as can be known, rotary hinge mechanism with double axis of the present invention makes the rotation of display screen have the revolution space of big spoke degree, can provide more wide shooting space to the user like this.In actual mechanical process, rotary hinge mechanism with double axis of the present invention can be so that the display screen of photographing apparatus be rotated smoothly, and the moving special angle of revolution, all have tangible section sense, and display screen can also be stabilized the location, prevent misoperation etc.In a word, rotary hinge mechanism with double axis of the present invention all provides reliable guarantee for operation ease, safety in utilization and the photography quality etc. of photographing apparatus.

Claims

1. rotary hinge mechanism with double axis, it is applied on the photographing apparatus, this rotary hinge mechanism with double axis includes two vertical mutually and mesh rotating shafts at least, it is characterized in that: first rotating shaft has two end part and first engaging piece between two end part, first engaging piece is made up of two structural units that distribute along this rotating shaft at least, i.e. first structural unit and second structural unit, and the width dimensions of first structural unit is slightly less than the width dimensions of second structural unit, when first rotating shaft was rotated under external force, its first engaging piece can move switching at least between first structural unit and second structural unit; Second rotating shaft also has two end part and reaches between two end part and second engaging piece that is meshed with first engaging piece of first rotating shaft, second engaging piece has several structural units that distributes along this rotating shaft, and wherein the width dimensions of a part of structural unit is slightly less than the width dimensions of another part structural unit, and the undersized structural unit of this second engaging piece is to be meshed with first structural unit or second structural unit of first engaging piece, large-sized structural unit of second engaging piece then only can be meshed with second structural unit of first engaging piece, when second rotating shaft was rotated under external force, the structural unit of its second engaging piece can alternately be switched; Wherein when second structural unit of first engaging piece of first rotating shaft is meshed with large-sized structural unit of second engaging piece of second rotating shaft, because of size restrictions, second structural unit of first engaging piece of first rotating shaft is can not be switched to first structural unit, can reach the effect that prevents misoperation like this.

2. rotary hinge mechanism with double axis as claimed in claim 1, it is characterized in that: this mechanism also includes a fixed base, this fixed base has first assembly hole and reaches and the second perpendicular assembly hole of first assembly hole, described first rotating shaft is positioned in first assembly hole, and described second rotating shaft is positioned in second assembly hole.

3. rotary hinge mechanism with double axis as claimed in claim 2, it is characterized in that: fixed base is provided with limited part.

4. rotary hinge mechanism with double axis as claimed in claim 3 is characterized in that: this mechanism also includes a pressing plate, and this pressing plate has an assembly hole and limited part.

5. rotary hinge mechanism with double axis as claimed in claim 4 is characterized in that: first structural unit of first engaging piece of first rotating shaft and second structural unit are made up of two different adjacent two grooves of axial width dimension.

6. rotary hinge mechanism with double axis as claimed in claim 5, it is characterized in that: first structural unit of first engaging piece of first rotating shaft is a square groove, its second structural unit is an arc groove, and two side positions of this first engaging piece are symmetrily processed with two annular grooves.

7. rotary hinge mechanism with double axis as claimed in claim 6, it is characterized in that: second engaging piece of second rotating shaft is a polygonal cylinder, the structural unit of second engaging piece is then formed in the side of this polygonal cylinder, and the column side face that relative distance is bigger between opposing side forms the undersized structural unit of cambered surface moulding, and the less column side face of relative distance then forms large-sized structural unit of planar design between opposing side.

8. rotary hinge mechanism with double axis as claimed in claim 7, it is characterized in that: on the end of second engaging piece of second rotating shaft, be processed with a spacing hole, after this end was passed second assembly hole and the assembly hole on the pressing plate of fixed base successively, a latch penetrated in the spacing hole of its end.

9. rotary hinge mechanism with double axis as claimed in claim 8 is characterized in that: the limited part that is positioned on the fixed base includes two spacing holes, and two position-limited levers pass this two spacing hole and are fastened on two annular grooves of first rotating shaft.

10. rotary hinge mechanism with double axis as claimed in claim 9 is characterized in that: the limited part that is positioned on the fixed base also includes the spacing preiection of two symmetry arrangement in the second assembly hole side of fixed base.

11. rotary hinge mechanism with double axis as claimed in claim 10 is characterized in that: the limited part that is positioned on the pressing plate includes two spacing holes that can match with the spacing preiection on the fixed base.

12. rotary hinge mechanism with double axis as claimed in claim 11, it is characterized in that: the limited part that is positioned on the fixed base also includes a limiting stopper, and the limited part that is positioned on the pressing plate yet includes a limiting stopper, and this limiting stopper that is positioned on the pressing plate is vertical mutually with the bearing of trend of limiting stopper on being positioned at fixed base.

13. rotary hinge mechanism with double axis, it is applied on the photographing apparatus, this rotary hinge mechanism with double axis mainly includes two vertical mutually and mesh rotating shafts, it is characterized in that: first rotating shaft has two end part, between two end part two are adjoining and be the groove of arc transition, and wherein the axial width dimension of a groove is less than the axial width dimension of another groove; Second rotating shaft has two end part and reaches between two end part and the polygonal cylinder that is meshed with the groove of first rotating shaft, the width dimensions of the side of this cylinder is also not quite identical, wherein the part column side face can only be meshed with the bigger groove of axial width dimension, and another part column side face then can mesh with two grooves of first rotating shaft.

14. rotary hinge mechanism with double axis as claimed in claim 13, it is characterized in that: between two grooves of first rotating shaft, be formed with a limiting structure at least, when wherein a part of column side face of second rotating shaft and first rotating shaft wherein a large-sized groove matches the time, this limiting structure can limit first rotating shaft and rotate, and when another part cylinder face of second rotating shaft matched with large-sized groove of first rotating shaft, this limiting structure then can not limit first rotating shaft and rotate.

15. rotary hinge mechanism with double axis as claimed in claim 14, it is characterized in that: two grooves of first rotating shaft are respectively square groove and arc groove, and the axial width dimension of square groove is less than the axial width dimension of arc groove, and limiting structure is to be positioned on the arc groove and is the sidewall that is connected with square groove as this arc groove.

16. as claim 13 or 15 described rotary hinge mechanism with double axis, it is characterized in that: the polygonal cylinder that is positioned in second rotating shaft has two relative arcuate flanks and two relative side planes, and the relative distance between two arcuate flanks is greater than the relative distance between two side planes.

17. rotary hinge mechanism with double axis, it is applied on the photographing apparatus, it is characterized in that: this linkage includes fixing frame, be installed on fixed body on the fixing frame, be assembled in first rotating shaft on the fixing frame, be assembled in second rotating shaft and pressing plate on the fixing frame, wherein fixing frame has upper surface, lower surface, runs through the assembly hole of this upper and lower surface, is positioned at spacing preiection and limiting stopper on the upper surface of fixing frame; Fixed body is provided with first assembly hole and reaches and the second perpendicular assembly hole of first assembly hole; First rotating shaft is passed first assembly hole of fixed body and is assembled on the fixing frame, this first rotating shaft can be rotated in first assembly hole, it has two end part and square groove and arc groove between two end part, and the axial width dimension of square groove is less than the axial width dimension of arc groove; Second rotating shaft is passed second assembly hole of fixed body and is assembled on the fixing frame, this second rotating shaft can be rotated in second assembly hole, and it has two end part and reaches between two end part and the polygonal cylinder that is meshed with the square groove and the arc groove of first rotating shaft; Pressing plate be assembled on the fixing frame and with the end Joint of the polygonal cylinder of second rotating shaft, it is provided with limiting stopper and spacing hole, in the rotation process of second rotating shaft, spacing hole on the pressing plate can break away from the spacing preiection on the fixing frame, and the limiting stopper and the limiting stopper on the pressing plate can be fixed on the frame stops.

18. rotary hinge mechanism with double axis as claimed in claim 17 is characterized in that: between the square groove of first rotating shaft and arc groove, be formed with a limiting structure at least.

19. rotary hinge mechanism with double axis as claimed in claim 18 is characterized in that: limiting structure is one of them sidewall that is connected with square groove of arc groove.

20. rotary hinge mechanism with double axis as claimed in claim 19, it is characterized in that: the polygonal cylinder that is positioned in second rotating shaft has two relative arcuate flanks and two relative side planes, and the relative distance between two arcuate flanks is greater than the relative distance between two side planes.

21. as claim 17 or 20 described rotary hinge mechanism with double axis, it is characterized in that: pressing plate is divided into first pressing plate and second pressing plate, and spacing hole is positioned on first pressing plate, and limiting stopper is positioned on second pressing plate.

22. rotary hinge mechanism with double axis as claimed in claim 21 is characterized in that: first pressing plate is provided with two trips, then is provided with two draw-in grooves that match with trip on second pressing plate.

23. a digital photographic arrangement, it mainly includes body frame and display screen, it is characterized in that: be equipped with between this device main body frame and display screen as claim 1,13 or 17 described rotary hinge mechanism with double axis.

24. digital photographic arrangement as claimed in claim 23 is characterized in that: the two end part in first rotating shaft of rotary hinge mechanism with double axis are provided with a mounting hole, and also are provided with at least one mounting hole on a wherein end of second rotating shaft.