CN202251418U

CN202251418U - Hinge device

Info

Publication number: CN202251418U
Application number: CN2011203940792U
Authority: CN
Inventors: 彭飞
Original assignee: SUZHOU CHENGJUN TECHNOLOGY Co Ltd
Current assignee: SUZHOU CHENGJUN TECHNOLOGY Co Ltd
Priority date: 2011-10-17
Filing date: 2011-10-17
Publication date: 2012-05-30
Anticipated expiration: 2021-10-17

Abstract

The utility model discloses a hinge device which is characterized in that by arranging a first cam and a second cam which are mutually matched and can relatively rotate, a rotating shaft rotates to lead third bulges on the second cam to be capable of rotating in first grooves of the first cam; when the rotating shaft rotates to second bulges and are blocked by the second bulges, the rotating shaft forms fixing self-locking; when an external force is continuously applied to rotate the rotating shaft, the third bulges slip the second bulges, are inserted into second grooves in a matching manner and are fixed under the angle; when an external force is continuously applied to rotate the rotating shaft, the third bulges slide first bulges at the other side and enter the first grooves at the other side, and the first bulges stop the third bulges so that the rotating shaft realizes the fixing self-locking again. The hinge device is applied to a space between a screen and a machine enclosure needed to be rotatably connected and leads the machine shell to be arranged at the upper part and the screen to be arranged at the lower part; and after being started, the screen can automatically rotate by a certain angle relative to the machine enclosure and can rotate to multiple angles to realize fixing self-locking. The hinge device has simple structure and high practicability and is convenient to use.

Description

A kind of pivot device

Technical field

the utility model relates to a kind of pivot device.

Background technique

In the foldable device of some suspensions; Generally comprise the screen that casing and relative casing can rotate; Generally be to be connected through between pivot device is set realizes the rotation of the relative casing of screen and open closure between the screen of the Vehicular video equipment that is provided with like automobile top, casing and screen.Existing screen generally needs manually opened, and can not under the angle of appointment, fix.

Summary of the invention

The purpose of the utility model provides a kind of pivot device that can open several angle automatically and can under a plurality of angles, carry out self-locking.

For achieving the above object, the technological scheme that the utility model adopts is:

A kind of pivot device, said pivot device comprises:

Rotating shaft, said rotating shaft comprises joint and axial region, and the outside circumference of said joint, said axial region is the on-circular face, and the front end of said axial region is provided with outside thread, also has a retaining portion between said joint and the said axial region;

First cam; Said first cam has discoid first main body; Have two first protruding and second convexities on one end face of said first main body; Said first convexity, the said second protruding circumferencial direction along said first main body distribute separately; Between two said first convexities, be 180 ° respectively between two said second convexities, said first convexity, said second convexity are in separately and form two first groove and second grooves that distribute separately on the said end face, also offer the manhole that can supply said axial region to pass that distributes vertically on said first main body;

Second cam; Said second cam has discoid second main body; Has the 3rd convexity that the circumferencial direction of two said second main bodys in edge distributes separately on one end face of said second main body; Said the 3rd convexity can be inserted in said first groove and can be in said first groove is that the circumference in the center of circle is rotated along the center with said second main body; Said the 3rd convexity can be inserted in said second groove ordinatedly, is 180 ° between two said the 3rd convexities, also offers the non-round tube hole that can supply said axial region to pass ordinatedly that distributes vertically on said second main body;

A plurality of elastic elements offer the manhole that can supply said axial region to pass on said a plurality of elastic elements;

Location adjustment element, have on the said location adjustment element one can with the interior threaded hole of the outer end screw-thread fit of said axial region;

Fixed base, have on the said fixed base one can supply said joint to insert ordinatedly groove;

Bolster offers one and can supply said axial region to penetrate and first through hole of the circle that said retaining portion can not penetrate on one side end of said bolster,

said axial region passes said first through hole; Said retaining portion retaining is on a side end face of said bolster; Said first cam, said second cam, said a plurality of elastic elements are set on the said axial region successively; Said location adjustment element is threaded on the front end of said axial region, and wherein, said first cam is provided with the said first protruding and said second protruding end face and is oppositely arranged with the end face that said second cam is provided with said the 3rd convexity.

preferably, said location adjustment element is a nut.

preferably; The outer rounded ends of said first cam has a plurality of flanges that distribute separately; Said bolster offers to have on the said end of first through hole and a plurality ofly can hold the opening that said a plurality of flange inserts ordinatedly; When said first cam was set on the said axial region, said a plurality of flanges can insert in the said opening accordingly.

preferably; Offer second through hole that can supply said axial region front end to pass on the end side of said bolster; Said axial region passes said first through hole and said retaining portion retaining on a side end face of said bolster the time, and the front end of said axial region can insert in said second through hole.

are because the utilization of technique scheme; The utility model compared with prior art has advantage: cooperatively interact and can counterrotating first cam and second cam through setting; The rotating shaft rotation makes the 3rd convexity on second cam in first groove of first cam, can rotate; When it turns to and second convexity is no longer rotated when blocking and under this angle, formed fixedly self-locking, when continuing to apply the external force rotating shaft, it is second protruding and insert ordinatedly in second groove and under this angle, fix that the 3rd convexity slips over; When continuing to apply the external force rotating shaft; The 3rd convexity slips over first convexity of opposite side and gets in first groove of opposite side, and first convexity is kept out the 3rd convexity and stoped it to continue rotation, and rotating shaft has also realized fixedly self-locking under this angle.This pivot device is applied between the screen and casing that need be rotationally connected; And make casing descend at last screen; Screen can be automatically after the unlatching relatively casing rotate a certain angle and be fixed under this angle, continue rotation and can be implemented in the fixedly self-locking under the multi-angle.This pivot device is simple in structure, and is easy to use, and practicability is high.

Description of drawings

Accompanying drawing 1 is the decomposing schematic representation of the pivot device of the utility model;

Accompanying drawing 2 is looked schematic representation for the master of first cam in the utility model;

Accompanying drawing 3 is looked schematic representation for the right side of first cam in the utility model;

Accompanying drawing 4 is looked schematic representation for the master of second cam in the utility model;

accompanying drawing 5 is looked schematic representation for the right side of second cam in the utility model.

Embodiment

The structure of the utility model is further set forth in below in conjunction with accompanying drawing.

are referring to shown in Fig. 1-5; A kind of pivot device, this pivot device comprise fixed base 1, bolster 3, and the rotating shaft 2 that connects fixed base 1 and bolster 3; Rotating shaft 2 comprise joint 21, axial region 23 and be arranged on 21 and axial region 23 between retaining portion 22; The outside circumference of joint 21 and axial region 23 is the on-circular face, and the outer end of axial region 23 also is provided with outside thread, have on the fixed base 1 one can supply joint 21 to insert ordinatedly groove; Joint 21 inserts in these grooves the back and in groove, can not rotate and make and can keep static relatively between rotating shaft 2 and the fixed base 1; Offer one on one side end of bolster 3 and can supply axial region 23 to penetrate and first through hole 31 of the circle that retaining portion 22 can not penetrate, axial region 23 can be rotatably inserted in first through hole 31, i.e. rotating shaft 2 can be rotated by relative fixed seat 1.

this pivot device also comprises first cam 4 on the axial region 23 that is arranged on rotating shaft 2, second cam 5, a plurality of elastic element 6 and adjustment positioning element 7.First cam 4; Shown in Fig. 2-3; Having the circumferencial directions that have two first protruding 42 and second protruding 43, the first protruding 42 and second convexity 43 edges first main bodys 41 on the end face of discoid first main body, 41, the first main bodys 41 distributes separately; Between two first protruding 42, be 180 ° respectively between two second protruding 43, first protruding 42 and second protruding 43 is in separately on this end face of first main body 41 and forms two first groove 44 and second grooves 45 of distribution separately; Second cam 5; Shown in Fig. 4-5; What have that the circumferencial direction that has two edge second main bodys 51 on the end face of discoid second main body, 51, the second main bodys 51 distributes separately the 3rd protruding 52, the three protruding 52 can insert in first groove 44 and can be that the circumference in the center of circle is rotated therein along the center with second main body 51; The the 3rd protruding 52 can be inserted in second groove 45 simultaneously ordinatedly, is 180 ° between two the 3rd protruding 52.When first cam 4 matched with second cam 5, first cam 4 was provided with the end face that first protruding 42 and second protruding 43 end face and second cam 5 be provided with the 3rd convexity 52 and is oppositely arranged.Can be rotated relatively in order to make win cam 4 and second cam 5 be set in 23 last times of axial region ordinatedly; Also offer the manhole that can supply axial region 23 to pass that distributes vertically on first main body 41; Also offer the non-round tube hole that can supply axial region 23 to pass ordinatedly that distributes vertically on second main body 51; Like this, rotating shaft 2 can relative first cam 4 be rotated and is driven second cam 5 and rotates thereupon, and first cam 4 and second cam 5 have promptly been realized relative rotation.Thereby can producing axial forces when being extruded, a plurality of elastic elements 6 make that producing frictional force between each part obtains the torsion of rotating shaft; It has the manhole that can supply axial region 23 to pass; Location adjustment element 7; What adopt in the present embodiment is nut, its have one can with the interior threaded hole of the outer end screw-thread fit of axial region 23.

When install ; Axial region 23 is passed first through hole 31; Retaining portion 22 retaining is enclosed within first cam 4, second cam 5 on the axial region 23 on a side end face of bolster 3 ordinatedly, sheathedly again a plurality of elastic elements 6; To locate adjustment element 7 at last and be threaded on the front end of axial region 23, in the groove on the joint 21 insertion fixed bases 1.When this pivot device is applied to being rotationally connected of casing and screen, fixed base 1 and screen are fixedly connected, bolster 3 and casing are fixedly connected, and make casing last, screen is following.During initial setting up; Make the 3rd protruding 52 to place first groove 44 and first protruding 42 adjacents, and, directly push this button when needing to open between casing and screen through corresponding switch button is set; Screen then can fall down under the effect of gravity; Screen drives rotating shaft 2 rotations, and rotating shaft 2 rotations drive second cam, 5 relative first cams 4 and are rotated, and rotates in first groove 44 with second protruding 43 when adjacent when the 3rd protruding 52; Second convexity 43 is blocked the 3rd protruding 52 and is stoped rotating shaft 2 to continue rotation, and then screen has been realized fixing under this angle; When needing the relative casing of screen to open bigger angle; Apply external force and come Rotation screen, rotating shaft 2 is rotated thereupon, and the 3rd protruding 52 slips over second protruding 43 under external force also inserts in second groove 45 ordinatedly; At this moment, screen has been realized fixing no longer rotation under this screws angle; When continuing to apply the external force Rotation screen; Rotating shaft 2 drives second cam, 5 relative first cams 4 and continues rotation, and the 3rd protruding 52 slips over first convexity 42 of opposite side, and gets in another first groove 44; At this moment remove external force; Then under the effect of screen gravity, the 3rd protruding 52 retainings are on first protruding 42, and this screen has been realized fixing under this screws angle.

in the present embodiment; The outer rounded ends of first cam 4 has a plurality of flanges 46 that distribute separately; Bolster 3 offers to have on the end of first through hole 31 and a plurality ofly can hold the opening 32 that a plurality of flanges 46 insert ordinatedly; When first cam 4 is set in 23 last times of axial region, a plurality of flanges 46 can insert in the opening 32 accordingly, can make the cam 4 of winning in the process of rotating shaft rotation, remain the static relatively state with bolster like this; The relative casing of screen that has also guaranteed simultaneously to be provided with this pivot device is opened automatically and the angle of rotational fixation stablize constant, thereby satisfy user demand.On the end side of bolster 3, offer second through hole that can supply axial region 23 front ends to pass; Axial region 23 passes first through hole 31 and retaining portion 22 retainings on a side end face of bolster 3 time; The front end of axial region 23 can insert in second through hole; This end that like this can countershaft is supported, thereby makes its more secure that is rotationally connected.

to sum up, said pivot device has automatic open function, and can under multi-angle, realize self-locking, and it is simple in structure, and is easy to use, and practicability is high.

the foregoing description is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage that is familiar with this technology can understand the content of the utility model and implements; Can not limit the protection domain of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.

Claims

1. pivot device, it is characterized in that: said pivot device comprises:

A plurality of elastic elements offer the manhole that can supply said axial region to pass on said a plurality of elastic elements;

Location adjustment element, have on the said location adjustment element one can with the interior threaded hole of the outer end screw-thread fit of said axial region;

Fixed base, have on the said fixed base one can supply said joint to insert ordinatedly groove;

Bolster offers one and can supply said axial region to penetrate and first through hole of the circle that said retaining portion can not penetrate on one side end of said bolster,

2. a kind of pivot device according to claim 1 is characterized in that: said location adjustment element is a nut.

3. a kind of pivot device according to claim 1; It is characterized in that: the outer rounded ends of said first cam has a plurality of flanges that distribute separately; Said bolster offers to have on the said end of first through hole and a plurality ofly can hold the opening that said a plurality of flange inserts ordinatedly; When said first cam was set on the said axial region, said a plurality of flanges can insert in the said opening accordingly.

4. a kind of pivot device according to claim 1; It is characterized in that: offer second through hole that can supply said axial region front end to pass on the end side of said bolster; Said axial region passes said first through hole and said retaining portion retaining on a side end face of said bolster the time, and the front end of said axial region can insert in said second through hole.