CN201041190Y

CN201041190Y - Pivotal device

Info

Publication number: CN201041190Y
Application number: CNU200720037666XU
Authority: CN
Inventors: 蔡旻锡
Original assignee: ANJIE INFORMATION TECHNOLOGY (SUZHOU) Co Ltd
Current assignee: ANJIE INFORMATION TECHNOLOGY (SUZHOU) Co Ltd
Priority date: 2007-05-15
Filing date: 2007-05-15
Publication date: 2008-03-26
Anticipated expiration: 2017-05-15

Abstract

The utility model relates to a hinging device which has the functions of opening and closing, and comprises a pivot axle and a hinge. A pipe spring on the hinge is nested on the pivot axle and the pipe spring also rotates oppositely to the pivot axle, a part of the pivot axle in the pipe spring is provided with at least a first arc surface and a second arc surface which are discontinuous, grooves extending along the axial direction are arranged on the inner wall of the pipe spring, and the first arc surface and the second arc surface are respectively held against the inner wall of the pipe spring. The pivot axle is fixed on a display screen, one side of the hinge is fixed on a main body (keyboard), when the hinge is turned to the second arc surface of the pivot axle and positioned in an arc shaped groove, the inner wall of the pipe spring generates stress to tightly clip the pivot axle, to prevent the pivot axle in the arc shaped groove to reversely rotate oppositely to the hinge, therefore, during the process, when the display screen is closed by a user, the force exerted from nearly closing to completely closing becomes smaller, and the display screw can be tightly stuck with the main body during the closing of the display screen without a locking buckle being arranged on the main body.

Description

Pivot device

Technical field

The utility model relates to a kind of pivot device, relates in particular to a kind of portable DVD player, VCD, notebook computer or clamshell handset etc. of being used in and has pivot device on the open-close type display device, has and opens and closed function.

Background technique

The equipment of the open-close type display screen of Shi Yonging in the market, as portable DVD player, VCD, notebook computer or clamshell handset etc., its display screen can be closed and the unlatching majority all be pivot device to be set by the both sides between display screen and body (keyboard), this pivot device can make display screen to rotate to the angle that the operator is satisfied with respect to body (keyboard).

Traditional pivot device, has a pivot, this pivot is fixedly installed on the display screen, one loose-leaf, one side of this loose-leaf is fixed on the body (keyboard), the pipe spring of opposite side is set in an end of pivot, and pivot can be rotated with respect to loose-leaf, thereby makes display screen to overturn with respect to body (keyboard).

Owing to need combine closely between pivot and the loose-leaf, could make display screen when promptly the frictional force between pivot and the loose-leaf is very big with respect to body (keyboard) rotation and in positioned at arbitrary angles.Because the frictional force between pivot and the loose-leaf is very big, like this closed display screen the time be about to be closed into complete closure from display screen and still need overcome bigger frictional force, this will bring very big inconvenience to the user.Simultaneously, when making display screen closed can with body (keyboard) secure lock, body (keyboard) is provided with draw-in groove usually, display screen is provided with grab, the user must could use before opening display screen in first release, operates comparatively complexity.

Summary of the invention

The purpose of this utility model provides a kind of pivot device, this pivot device is simple in structure, the user is about to be closed into the complete closed power of using from large to small from display screen, and when need not to be provided with snap close and also can make display screen closed and body fit tightly, it is comparatively convenient to operate.

The utility model can be implemented by the following technical programs: a kind of pivot device, and it comprises:

Pivot, described pivot is provided with joint;

Loose-leaf is arranged at intervals with at least one pipe spring on the described loose-leaf, described pipe spring is set in described to the small part pivot and can rotate along the shaft axis of described pivot, and described loose-leaf has assembly department,

The part pivot that is inserted in the described pipe spring has at least two discontinuous first cambered surfaces and second cambered surface, has the groove that extends vertically on the inwall of described pipe spring, and described first cambered surface and second cambered surface are against respectively on the inwall of described pipe spring.

Described groove is a curve bath.

Described pivot to the small part outer wall, offer a plurality of oil grooves.

Described pipe spring is two and coaxial setting arranged side by side.

The curved direction of stretching of described two pipe springs is opposite.

Compared with the prior art the utility model has following advantage: because the shaft part of pivot has at least two discontinuous first cambered surfaces and second cambered surface, and have groove on the inwall of an end of pipe spring, when second cambered surface that turns to pivot when loose-leaf is positioned at arcuate furrow, make pipe spring inwall produce the stress of clamping pivot, to prevent that the relative loose-leaf of pivot in the arcuate furrow is to counter-rotation, like this user in closing the process of display screen from being about to be closed into the complete closed power of using from large to small, and when need not to be provided with snap close and still can make display screen closed and body fit tightly.

Description of drawings

Accompanying drawing 1 is an exploded view of the present utility model;

Accompanying drawing 2 is a plan view of the present utility model;

Accompanying drawing 3 is a plan view of the present utility model;

Accompanying drawing 4 is along the sectional view of A-A direction in the accompanying drawing 3;

Accompanying drawing 5 is along the sectional view (pivoted is in the another location) of A-A direction in the accompanying drawing 3;

Accompanying drawing 6 is the enlarged diagram of analysing and observe of pivot in the accompanying drawing 5;

Wherein: 10, pivot; 11, joint; 12, hole; 13, first cambered surface; 14, second cambered surface; 15, oil groove;

20, loose-leaf; 21, pipe spring; 22, assembly department; 23, groove.

Embodiment

Shown in Fig. 1～5, pivot device of the present utility model, it comprises:

Pivot 10, described pivot 10 is provided with joint 11, it is provided with a plurality of being used for pivot 10 is installed to hole 12 on the display screen, described pivot 10 to the small part outer wall, offer a plurality of oil grooves 15, be full of lubricant oil in the oil groove 15 in use.

Loose-leaf 20, be arranged at intervals with two coaxial pipe springs 21 arranged side by side on the described loose-leaf 20, and the curved direction of stretching of described two pipe springs 21 is opposite, watch the shape of pipe spring 21 to be question mark by the end, described two pipe springs 21 are set in described to the small part pivot 10 and can rotate along the shaft axis of described pivot 10, and described loose-leaf 20 has the assembly department 22 that is used to be installed on the body (keyboard).

The part pivot 10 that is inserted in the described pipe spring 21 has two discontinuous first cambered surfaces 13 and second cambered surface 14, have the groove 23 that extends vertically on the inwall of described pipe spring 21, described groove 23 is a curve bath, loose-leaf 20 is in pivot 10 rotating process, described first cambered surface 13 and second cambered surface 14 push against on the inwall of described pipe spring 21 (as shown in accompanying drawing 4) respectively, comparatively tight friction power is bigger owing to combine between first cambered surface 13 and second cambered surface 14 and the inwall of managing spring 21, the feasible display screen that is fixed on the assembly department 22 of loose-leaf 20 can be in positioned at arbitrary angles, when loose-leaf 20 is rotated further when second cambered surface 14 of pivot 10 is positioned at arcuate furrow 23 (as shown in accompanying drawing 5), make pipe spring 21 inwalls produce the stress of clamping pivot 10, to prevent that pivot 10 relative loose-leaves 20 in the arcuate furrow 23 are to counter-rotation, like this user in closing the process of display screen from being about to be closed into the complete closed power of using from large to small, and when snap close not being set on body and display screen still can making display screen closed and body fit tightly.

Above-described only is preferred embodiment of the present utility model, and every embodiment who does not break away from the technical solutions of the utility model content is the scope of the utility model protection.

Claims

1. pivot device, it comprises:

Pivot (10), described pivot (10) is provided with joint (11);

Loose-leaf (20), be arranged at intervals with at least one pipe spring (21) on the described loose-leaf (20), described pipe spring (21) is set in described going up to small part pivot (10) also can be along the shaft axis rotation of described pivot (10), and described loose-leaf (20) has assembly department (22), it is characterized in that:

The part pivot (10) that is inserted in the described pipe spring (21) has at least two discontinuous first cambered surfaces (13) and second cambered surface (14), have the groove (23) that extends vertically on the inwall of described pipe spring (21), described first cambered surface (13) and second cambered surface (14) are against respectively on the inwall of described pipe spring (21).

2. pivot device according to claim 1 is characterized in that: described groove (23) is a curve bath.

3. pivot device according to claim 1 is characterized in that: described pivot (10) to the small part outer wall, offer a plurality of oil grooves (15).

4. pivot device according to claim 1 is characterized in that: described pipe spring (21) is two and coaxial setting arranged side by side.

5. pivot device according to claim 4 is characterized in that: the curved direction of stretching of described two pipe springs (21) is opposite.