CN200996406Y - Pivot - Google Patents

Abstract

A hinge device includes a central bracket which is provided with a bottom plate, a first wide wing and a second side wing; two side wings are provided at both sides of the bottom plate vertically, and the center of bottom plate is provided a central through hole; a metal reinforced plate by ejection molding which is fixed at the outer side of the bottom plate; the reinforced plate is provided with a central projection by extension molding in the center of bottom plate, and the central projection of reinforced plate crosses the central through hole of bottom plate and extends to the inner side of the bottom plate; a first start-stop shaft set is connected with the first side wing; a second start-stop shaft sleeve is connected with the second side wing; a rotation shaft set is connected with the reinforced plate.

Description

Pivot device

[technical field]

The utility model is about a kind of pivot device, particularly about between a kind of loam cake and base of being located at lid-lifting device, loam cake can be opened and closed or the pivot device of rotation with respect to base.

[background technique]

General electronics lid-lifting device (for example notebook computer, mobile phone etc.) has a loam cake and a base, be provided with a pivot device between loam cake and base, so that loam cake can be with respect to the base closure or openness, in order to cooperate the usage mode of more diversification, the rotary pivot device of prior art not only can make loam cake open and closure with respect to base, simultaneously loam cake is rotated with respect to base, then produce friction because of rotating relatively often between the element of the pivot device of prior art, the if things go on like this then abrasion of acceleration components, and the working life of minimizing prior art pivot device.

[model utility content]

The purpose of this utility model is to be to provide a kind of pivot device that improves working life.

For reaching above-mentioned model utility purpose, the technological means that the utility model adopted is a kind of pivot device of design, comprising:

One center bolster, it has a base plate, one first flank and one second flank, and respectively vertical forming is in the base plate both sides for two flanks, and base plate central authorities run through and form a central hole;

The stiffening plate of one metal ejection formation, it is fixedly arranged on the outer side surface of base plate, and stiffening plate has a center projection with respect to the side central authorities elongation moulding of base plate, and the center projection of stiffening plate runs through the central hole of base plate and extends the inner side surface of base plate;

One first opening-closing shaft group, itself and first flank join;

One second opens and closes axle sleeve, and itself and second flank join;

One running shaft group, itself and stiffening plate join.

The utility model is located between the loam cake and base of lid-lifting device, and loam cake is connected with the running shaft group, and the first opening-closing shaft group and second opens and closes axle sleeve and is connected with base, and when loam cake rotated with respect to base, loam cake driven rotary axle group was rotated with respect to stiffening plate.

Advantage of the present utility model is, because loam cake is when rotating with respect to base, produce relative friction between running shaft group and the stiffening plate, utilize stiffening plate to be the stronger characteristic of metal ejection formation intensity, to promote the ability that stiffening plate is worn away, then can effectively prolong the working life of pivot device.

[description of drawings]

Fig. 1 is a stereo appearance figure of the present utility model

Fig. 2 is an element exploded view of the present utility model

Fig. 3 is the element exploded view at another visual angle of the utility model

Fig. 4 is a side cutaway view of the present utility model

Fig. 5 is enforcement phase diagram of the present utility model

Fig. 6 is another embodiment's of the utility model a element exploded view

[embodiment]

See also shown in Figure 1ly, the utility model includes a center bolster 10, a stiffening plate 20, one first opening-closing shaft group 30, one second and opens and closes axle sleeve 40, an and running shaft group 50.

See also shown in Fig. 2,3, aforesaid center bolster 10 is a ㄇ matrix body, center bolster 10 has a base plate 11, one first flank 12 and one second flank 13, two flanks, 12,13 difference vertical formings are in the two ends of base plate 11, run through on the base plate 11 and form a central hole 111 and several fixed holes 112, second flank, 13 central authorities run through and form the side that a center hole 131, the second flanks 13 are different from first flank 12 and be outward extended with a sleeve 132 along center hole 131 peripheries.

Aforesaid stiffening plate 20 is fixedly arranged on the outer side surface of base plate 11, stiffening plate 20 is the plate body of metal ejection formation, there is a center projection 21 in stiffening plate 20 central authorities towards the side elongation moulding of base plate 11, the center projection 21 of stiffening plate 20 is through the central hole 111 of base plate 11 and extend the inner side surface of base plate 11, projection 21 central authorities in center run through and form a center hole 211, indent forms two relative location indentations on the center projection 21, the side that stiffening plate 20 is different from base plate 11 has an axle sleeve 22 along center hole 211 periphery elongation mouldings, axle sleeve 22 outer walls radially elongation moulding have an arc spacing block set 221, towards base plate 11 side elongation mouldings several fixedly projections 23 are arranged on the stiffening plate 20, the fixedly projection 23 of stiffening plate 20 wears and is fixed in the fixed hole 112 of base plate 11, so that stiffening plate 20 and base plate 11 are interfixed.

The aforesaid first opening-closing shaft group 30 is connected with first flank 12.

See also shown in Fig. 3,4, aforesaid second opens and closes axle sleeve 40 is connected with second flank 13, second opens and closes axle sleeve 40 central elongation mouldings an axle 41, the external diameter of the axle 41 of the second keying axle sleeve 40 is less than the internal diameter of the sleeve 132 of second flank 13, axle 41 is arranged in the sleeve 132 in the drive fit mode, borrow friction tight mode that axle 41 and sleeve 132 is fixing to axial, be used for the element that it is fixing to axial with minimizing, please cooperate and consult shown in Figure 6ly, and can outside axle 41, be arranged with packing ring 42 ' to reduce abrasion.

See also Fig. 2, shown in 3, aforesaid running shaft group 50 is joined with stiffening plate 20, running shaft group 50 includes a rotating shaft 51, one location pad 52, one spacing shim 53 and one is bolster 54 fixedly, rotating shaft 51 is through the center hole 211 of stiffening plate 20, rotating shaft 51 can be rotated with respect to center bolster 10 and stiffening plate 20, locating washer 52 is sheathed and be fixed in the rotating shaft 51, locating washer 52 1 side elongation mouldings have the positioning convex portion 521 with respect to the location indentations of stiffening plate 20, please cooperate consult shown in Figure 6, locating washer 52 ' can be an elastic strip body, spacing shim 53 is sheathed and be fixed in the rotating shaft 51, spacing shim 53 1 side elongation mouldings have the spacing block set 531 with respect to the spacing block set 221 of stiffening plate 20, please cooperate consult shown in Figure 6, spacing shim 53 opposite side elongation mouldings have auxiliary spacing block set 532 ', fixedly bolster 54 is sheathed and be fixed in rotating shaft 51 ends, fixedly forms the spacing protuberance 541 ' with respect to auxiliary spacing block set 532 ' on the bolster 54.

See also shown in Fig. 3,5, the utility model is located between the loam cake 60 and base 70 of lid-lifting device, and loam cake 60 is connected with the fixedly bolster 54 of running shaft group 50, and the first opening-closing shaft group 30 and second opens and closes axle sleeve 40 and is connected with base 70.

See also shown in Fig. 2,3, when loam cake 60 opens and closes with respect to base 70, drive the first opening-closing shaft group 30 and second and open and close axle sleeve 40 with respect to 10 rotations of center bolster.

See also shown in Fig. 2,3, when loam cake 60 rotates with respect to base 70, driven rotary axle group 50 is with respect to 10 rotations of center bolster, then locating washer 52 and spacing shim 53 are with respect to stiffening plate 20 rotations, when the location indentations tabling of the positioning convex portion 521 of locating washer 52 and stiffening plate 20, make loam cake 60 with respect to base 70 location, when the spacing block set 221 of the spacing block set 531 of spacing shim 53 and stiffening plate 20 leant, restriction loam cake 60 was with respect to the angle of swing of base 70.

[main element symbol description]

(10) center bolster (11) base plate

(111) central hole (112) fixing hole

(12) first flanks (13) second flanks

(131) centre bore (132) sleeve

(20) stiffener (21) center projection

(211) centre bore

(22) axle sleeve (221) spacing block set

(23) fixing projection (30) first opening-closing shaft groups

(40) second open and close axle sleeve (41) axle

(50) running shaft group (51) rotating shaft

(52) locating washer (52 ') locating washer

(521) positioning convex portion (53) spacing shim

(531) the auxiliary spacing block set of spacing block set (532 ')

(54) the fixing spacing protuberance of bolster (541 ')

(60) loam cake (70) base

Claims (9)

1. pivot device is characterized in that: comprising:

One center bolster, it has a base plate, one first flank and one second flank, and respectively vertical forming is in the base plate both sides for two flanks, and base plate central authorities run through and form a central hole;

The stiffening plate of one metal ejection formation, it is fixedly arranged on the outer side surface of base plate, and stiffening plate has a center projection with respect to the side central authorities elongation moulding of base plate, and the center projection of stiffening plate runs through the central hole of base plate and extends the inner side surface of base plate;

One first opening-closing shaft group, itself and first flank join;

One second opens and closes axle sleeve, and itself and second flank join;

One running shaft group, itself and stiffening plate join.

2. pivot device as claimed in claim 1, it is characterized in that: the described second flank central authorities run through and form a center hole, center hole periphery along second flank has an axle sleeve to the outer side surface elongation moulding of second flank, described second opening-closing shaft puts and forms an axle, second opens and closes the internal diameter of the axle external diameter of axle sleeve less than the axle sleeve of second flank, and second axle that opens and closes axle sleeve wears and tightly fits in the axle sleeve of second flank.

3. pivot device as claimed in claim 1 or 2 is characterized in that: described running shaft group includes fixedly bolster of a rotating shaft and, and rotating shaft runs through the center hole of stiffening plate, and fixedly bolster is sheathed and be fixed in the rotating shaft end.

4. pivot device as claimed in claim 3, it is characterized in that: the center projection central authorities of described stiffening plate run through and form a center hole, center hole periphery indent forms two relative location indentations, the running shaft group includes a location pad, locating washer is sheathed and be fixed in the rotating shaft and adjacent to the center projection of stiffening plate, locating washer one side elongation moulding has two relative positioning convex portion, and the positioning convex portion of locating washer is with respect to the location indentations of stiffening plate.

5. pivot device as claimed in claim 4, it is characterized in that: the side elongation moulding that described stiffening plate is different from base plate has an axle sleeve, axle sleeve outer wall radially elongation moulding has an arc spacing block set, the running shaft group includes a spacing shim, spacing shim is sheathed and be fixed in the rotating shaft, spacing shim forms a spacing block set adjacent to the side that is different from base plate of stiffening plate on the spacing shim, the spacing block set of spacing shim is with respect to the spacing block set of stiffening plate.

6. pivot device as claimed in claim 5 is characterized in that: run through forming several fixed holes on the described base plate, the side elongation moulding towards base plate on the stiffening plate has several fixedly projections, and the fixedly projection of stiffening plate wears and is fixed in the fixed hole of base plate.

7. pivot device as claimed in claim 2 is characterized in that: be arranged with at least one packing ring on the axle of the described second keying axle sleeve.

8. pivot device as claimed in claim 4 is characterized in that: the locating washer of described running shaft group is an elastic strip body.

9. pivot device as claimed in claim 5 is characterized in that: the spacing shim of described running shaft group has an auxiliary spacing block set with respect to fixing bolster one side elongation moulding, fixedly forms relative spacing protuberance on the bolster.

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