CN203500271U

CN203500271U - Multi-stage torsion pivoting device

Info

Publication number: CN203500271U
Application number: CN201320588130.2U
Authority: CN
Inventors: 陈嘉辉; 林子郁; 陈立中
Original assignee: Lianhong Technology Co Ltd
Current assignee: Lianhong Technology Co Ltd
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-03-26
Anticipated expiration: 2023-09-23

Abstract

The utility model discloses a multi-stage torsion pivoting device, which comprises a concave wheel and a cam, wherein the concave wheel and the cam are arranged on a pivoting device, and can rotate relative to each other; two opposite inner ring bump parts, a middle ring bump part spaced from the inner ring bump parts and an outer ring bump part opposite to the middle ring bump part are arranged on the actuating surface of the cam; inner ring concave parts corresponding to the inner ring bump parts, a middle ring concave part corresponding to the middle ring bump part and an outer ring concave part corresponding to the outer ring bump part are arranged on the actuating surface of the concave wheel respectively at positions opposite to the inner ring bump parts, the middle ring bump part and the outer ring bump part; a first travel actuating surface is matched with the inner ring bump parts, a second travel actuating surface is matched with the middle ring bump part, and a third travel actuating surface is matched with the outer ring bump part. Therefore, the formed pivoting device can stably and reliably rotate, and the rotating angle can be enlarged under the condition of enhancing the stress structure strength of the whole pivoting device.

Description

Multistage type torsional pivot device

Technical field

The utility model, about a kind of Multistage type torsional pivot device, makes this type of pivot device form force structure intensity more reliable and more stable and strengthening, and can be issued to larger rotation angle in high force structure intensity.

Background technique

The class of electronic devices of notebook computer of take is example, this kind equipment is consisted of a body as system end and the upper cover that can Gong raise as screen display end haply, described system end is that display end connects with more than one pivot device in an opposite end conventionally, make display end can take pivot device and as action axle center, upwards raise and arrive a set angle and become working state, or via counteragent by display end closure in system end surface.

User's operation for convenience, the display end that contains display screen lifts over 90 ° in meeting conventionally, that is to say that LCD screen can be positioned at and the rectangular above position (general operation angle is about 120 °) of system end.Now whole LCD screen is put formedly vertically to component load because of oblique, must be born by pivot device and dependency structure thereof.

Simultaneously, because LCD screen that modern age, electronic equipment used is mostly touch panel (Touch Panel), display end is oblique raising under load condition as the aforementioned, user is to point voltage-controlled panel (LCD screen), because panel area has a segment distance with the pivot device in action axle center, in the panel application of force, will will form larger force distance to pivot device, and make pivot device easily impaired or be difficult to maintain the locating function while turning to fixed point.Meanwhile, because LCD screen support force is not enough, the related unstable use state of whole notebook computer in easy stressed movement that make, therefore, this class of electronic devices has the pivot device force structure of strengthening conventionally.

The pivot device strengthening force structure of this class of electronic devices is mainly the torsion strength that concave relative in pivot device forms different sizes, but the relative concave of existing pivot device except actuating travel more unstable, also easily make the force structure strength deficiency of whole each pivot device, meanwhile, more because strengthening the restriction of force structure, be difficult to strengthen opening angle.

Model utility content

The utility model object is providing a kind of Multistage type torsional pivot device, can further strengthen the force structure intensity of whole pivot device, makes the running of pivot device more reliable and stable, more can strengthen the start angle of the stressed pivot device of whole high strength.

For reaching above object, the utility model discloses a kind of Multistage type torsional pivot device, comprise in order to combined electrical the subset wherein underframe of one end and the support that connects the electronic equipment the other end in order to group, pivot device is provided with an axle through the default center hole of described support in described undercarriage portion; And be arranged with both sides friction plate in the another side of described axle, and recessed the wheel and cam, elastic device and fixing device relatively rotating with respect to each other; It is characterized in that:

Described relatively recessed take turns and cam is provided with relative start face, described cam start face is provided with two-phase and internally encircles lug boss, and one and the spaced central ring lug boss of described interior ring lug boss, and one and the outer shroud lug boss that is oppositely arranged of described central ring lug boss; The described recessed start face of taking turns is respectively equipped with the interior circular rabbet relative with interior ring lug boss at the interior ring lug boss with described, central ring lug boss and outer shroud lug boss relative position respectively, the central ring recess relative with central ring lug boss and the outer circular rabbet relative with outer shroud lug boss; Coordinate described interior ring lug boss to be provided with one first stroke start face, coordinating one second stroke start face of central ring lug boss and a third trip start face of cooperation outer shroud lug boss.

Wherein, described interior ring lug boss, central ring lug boss and outer shroud lug boss and described relative interior circular rabbet, central ring recess and outer circular rabbet according to rotation stressed and angle select to be respectively located at described cam and recessed different radial lengths and angular orientation of taking turns start face.

Wherein, the height of projection of described cam central ring lug boss is lower than outer shroud lug boss, and described recessed the second stroke start face and the third trip start face of taking turns is with relative height setting.

Wherein, on start face between described interior circular rabbet, form one first stroke start face, and between described the first stroke start face and central ring recess, form one second stroke start face, and be provided with a third trip start face with described the second stroke start face opposite position.

Wherein, on start face between described interior circular rabbet, form one first stroke start face, and between described the first stroke start face and central ring recess, form a second stroke start face higher than described the first stroke start face, and be provided with a third trip start face with described the second stroke start face opposite position.

Pass through said structure, the utility model in pivot device in rotation process, can first see through internal projection portion and form first paragraph torsion, and at peripheral lug boss, form further torsion section via in the middle of being located at, the rotation that not only sees through interior China and foreign countries urges and forms more reliable and more stable force structure intensity, and can be issued to larger rotation angle in high force structure intensity.

Accompanying drawing explanation

Fig. 1: show the utility model one preferred embodiment three-dimensional element exploded view.

Fig. 2: showing that Fig. 1 is recessed takes turns and the three-dimensional amplification decomposition figure of the relative start face of cam, wherein, recessed take turns and each dependency structure of cam is in relative closed position.

Fig. 3: showing that Fig. 2 is recessed takes turns and the relative start face closed condition of cam front view, shows cam dependency structure for know, and each mould of cam is wiped face and all represented that with solid line confession is separated to recessed each relevant dotted line member of taking turns.

Fig. 4: started to rotate approximately 30 ° of positions of arrival for continue on drawing 3 shows.

Fig. 5: arrive approximately 135 ° of positions for continue on drawing 4 shows to have rotated.

Fig. 6: arrive approximately 300 ° of positions for continue on drawing 5 shows to have rotated.

Embodiment

The utility model novelty and other features will be tending towards clear in coordinating the following drawings preferred embodiment to describe in detail.

First please refer to Fig. 1, in diagram possible embodiments, be included in order to combined electrical the subset wherein underframe 10 of one end and the support 11 that connects the electronic equipment the other end in order to group, the utility model pivot device is provided with the axle 12 of a pivot device for the default center hole 13 through described support 11 in described underframe 10 ends; And at another side sheathed both sides friction plate 14,15 sequentially, and relative recessedly take turns 20 and cam 30, elastic device 16 and fixing device 17.In this embodiment, describedly recessedly take turns 20 and be provided with a grafting interlock in the eccentric shaft 21 of the relative opening 18 of

support

11,12 of the axles of described pivot device contain the face of scabbling and are provided with movablely through described recessed 20 center holes of taking turns, and contain the relative center hole 31 grafting interlocks that scabble face with described cam 30.

As shown in Figure 2, described relative recessed take turns 20 and cam 30 be provided with relative start face, wherein, what described cam 30 was provided with 180 °, two about interval internally encircles lug boss 32 mutually, 33, and one and described interior ring lug boss 32, the central ring lug boss 34 that 33 intervals are approximately 90 °, and one and the outer shroud lug boss 35 that is oppositely arranged of described central ring lug boss 34, described " interior ring ", " central ring ", " outer shroud " refers to by described cam 30 center hole 31You Nei centers outwards increases radial length gradually, make described interior

ring lug boss

32, 33, central ring lug boss 34 and outer shroud lug boss 35 are located at respectively different radial lengths and the angular orientation of described cam 30 start faces, loading angle and intensity when described each lug boss radially and the selection of angular orientation can determine to rotate, simultaneously, make each described lug boss there is not unison arc width, and preferably make the height of projection of central ring lug boss 34 lower than outer shroud lug boss 35, for convenience of rotating, enter or exit relative start face, described interior

ring lug boss

32,33, central ring lug boss 34 and outer shroud lug boss 35 two ends arrange end beveled region 321,331,341,351 respectively.

The described recessed 20 start faces of taking turns are respectively equipped with the interior

circular rabbet

22,23 relative with interior

ring lug boss

32,33 at the interior

ring lug boss

32,33 with described, central ring lug boss 34 and outer shroud lug boss 35 relative positions respectively, the central ring recess 24 relative with central ring lug boss 34 and the outer circular rabbet 25 relative with outer shroud lug boss 35, described each recess two the inner also can arrange as the end beveled region of aforementioned convenient turnover, coordinate described interior

ring lug boss

32,33 to be provided with one first stroke start face 26, coordinating one second stroke start face 27 of central ring lug boss 34 and a third trip start face 28 of cooperation outer shroud lug boss 35, in this embodiment, at interior circular rabbet 22, on start face between 23, form one first stroke start face 26, and between described the first stroke start face 26 and central ring recess 24, form a second stroke start face 27 higher than described the first stroke start face 26, and be provided with a third trip start face 28 with described the second stroke start face 27 opposite positions, every one stroke start face is provided with equally convenient rotation the in end beveled region and passes in and out, coordinate the height of projection of described cam 30 central ring lug bosses 34 lower than outer shroud lug boss 35, described recessed the second stroke start face and the third trip start face of taking turns is with relative height setting.Simultaneously, the second described stroke start face 27 starting points 271 and third trip start face 28 starting points 281 can be set according to the needed rotation angle of whole pivot device position, simultaneously, each crowning of described cam 30 and stroke start face width degree can determine the rotation angle of whole pivot device, for example, if central ring lug boss 34 and outer shroud lug boss 35 are when whole 360 ° of rings are made as 60 ° of width week, when if the second stroke start face 27 and third trip start face 28 are made as 120 ° of width, can effectively strengthen whole rotational travel.

As shown in Figure 3, the utility model is in electronic equipment closed condition, when whole pivot device is start, the interior

ring lug boss

32,33 of described cam 30, central ring lug boss 34 and outer shroud lug boss 35 relative positions are positioned respectively described recessed 20 relative interior

circular rabbet

22,23, central ring recess 24 and the outer circular rabbets 25 of taking turns.When rotating as shown in Figure 4 approximately 30 °, please refer to Fig. 2 and Fig. 4, the interior

ring lug boss

32,33 of cam 30 is recessedly taken turns 20 relative interior

circular rabbets

22,23 and enters the first row journey start face 26 departing from, and forms first paragraph torsion.When described, recessedly take turns 20 and cam 30 while relatively rotating as shown in Figure 5 approximately 135 °, central ring lug boss 34 and outer shroud lug boss 35 in rotation process, depart from respectively central ring recess 24 and outside circular rabbet 25, and start to enter respectively the second stroke start face 27 and third trip start face 28, form needed another section of torsion, meanwhile, can coordinate the second stroke start face 27 and the set length of third trip start face 28 to be rotated further approximately 300 ° of positions as shown in Figure 6.

The utility model is because pivot device is in rotation process, can first see through internal projection portion and form first paragraph torsion, and at peripheral lug boss, form further torsion section via in the middle of being located at, the rotation that not only sees through interior China and foreign countries urges and forms more reliable and more stable force structure intensity, and can be issued to larger rotation angle in high force structure intensity.

Above embodiment only, with illustrating for convenience the utility model, is not in a limitative way, and for haveing the knack of this skill personage, complies with various Simple transformeds and the modification that this embodiment can do, and all must include in following claim.

Claims

1. a Multistage type torsional pivot device, comprises in order to combined electrical the subset wherein underframe of one end and the support that connects the electronic equipment the other end in order to group, and pivot device is provided with an axle through the default center hole of described support in described undercarriage portion; And be arranged with both sides friction plate in the another side of described axle, and recessed the wheel and cam, elastic device and fixing device relatively rotating with respect to each other; It is characterized in that:

2. Multistage type torsional pivot device as claimed in claim 1, it is characterized in that, described interior ring lug boss, central ring lug boss and outer shroud lug boss and described relative interior circular rabbet, central ring recess and outer circular rabbet according to rotation stressed and angle select to be respectively located at described cam and recessed different radial lengths and angular orientation of taking turns start face.

3. Multistage type torsional pivot device as claimed in claim 1, is characterized in that, the height of projection of described cam central ring lug boss is lower than outer shroud lug boss, and described recessed the second stroke start face and the third trip start face of taking turns is with relative height setting.

4. Multistage type torsional pivot device as claimed in claim 1, it is characterized in that, on start face between described interior circular rabbet, form one first stroke start face, and between described the first stroke start face and central ring recess, form one second stroke start face, and be provided with a third trip start face with described the second stroke start face opposite position.

5. Multistage type torsional pivot device as claimed in claim 3, it is characterized in that, on start face between described interior circular rabbet, form one first stroke start face, and between described the first stroke start face and central ring recess, form a second stroke start face higher than described the first stroke start face, and be provided with a third trip start face with described the second stroke start face opposite position.