CN201110309Y

CN201110309Y - Pivot structure for providing torsion using elastic restoring force

Info

Publication number: CN201110309Y
Application number: CNU2007201828857U
Authority: CN
Inventors: 洪林恺
Original assignee: DADIAN BEARING Co Ltd
Current assignee: DADIAN BEARING Co Ltd
Priority date: 2007-11-01
Filing date: 2007-11-01
Publication date: 2008-09-03
Anticipated expiration: 2017-11-01

Abstract

A pivot structure comprises a beam-barrel, a bearing plate, a shaft lever, at least one axle cap and an elastic plate, wherein the beam-barrel has beam-barrel inner surface, the bearing plate is inserted and combined in the beam-barrel, the bearing plate comprises a bearing section and two extension pieces, and the extension pieces is provided with a limit component and at least a locating component, the shaft lever is rotationally combined between the inner surface of the beam-barrel and the bearing section, the axle cap is combined with at least one end of the shaft lever and is provided with certain section, the elastic plate extends in wavy shape to support the bearing plate and is limited between the limit component of the two extension pieces. When the shaft lever revolves between the inner surface of the beam-barrel and the bearing plate and enables a locating section to contact with the locating component, the locating component locates the shaft lever. The pivot structure can remit the fatigue break-down of the bearing plate, remit the torque force decline of the pivot structure, and efficiently shorten the rotation abrasion wear travel length, remit the abrasion wear of the locating section and increase the service life of the pivot structure.

Description

Utilize elastic restoring force that the pivot structure of torsion is provided

Technical field

The utility model relates to a kind of pivot structure, is meant a kind of pivot structure that utilizes the elastic restoring force of carrying plate and elastic panel that torsion is provided especially.

Background technique

In daily life, be able to folding, can between two objects, install a pivot structure usually in order to make collapsible object.Existing pivot structure is made up of a public axle and a female axle mostly.Public axle comprises a linking department and an axostylus axostyle usually, and female axle comprises another linking department and a beam barrel usually.Under general situation, but the axostylus axostyle turn of public axle ground is incorporated into the beam barrel of female axle, and the linking department of public axle is incorporated into one first object, and female connecting part is incorporated into one second object.Therefore, the axle center that first object can axostylus axostyle is that the center rotates, and makes between first object and second object and is able to folding, to form above-mentioned collapsible object.

Putting before this, because the axostylus axostyle of public axle can be regularly produces friction with the beam barrel of female axle, therefore, the exportable torsion of pivot structure often can the decline gradually along with the increase of the number of revolution of axostylus axostyle in beam barrel.Therefore, a kind of existing pivot structure can utilize the elastic restoring force of carrying plate to improve torsion, to reduce the torsion fading rate.

In order to illustrate further above technology, below will enumerate an existing pivot structure and be specified.See also Fig. 1 and Fig. 2, Fig. 1 is the three-dimensional exploded view of existing pivot structure, and Fig. 2 is the front view of existing pivot structure.As shown in the figure, a pivot structure 1 comprises a beam barrel 11, a carrying plate 12 and a public axle 13.Opposite direction along one first bearing of trend I0 extends to one second beam barrel end face 112 to beam barrel 11 from one first beam barrel end face 111, and has a beam barrel internal surface 113.

Carrying plate 12 comprises a support section 121a, a carrying section 121b and another support section 121c, and the opposite direction from one first carrying end face 122 along the first bearing of trend I0 extends to one second carrying end face 123, and is incorporated in the beam barrel 11.Wherein,

support section

121a and 121c extend from the both sides of carrying section 121b respectively, with support bearing section 121b.

Public axle 13 comprises a linking department 131 and an axostylus axostyle 132.Linking department 131 offers two connect apertures 131a and 131b.Axostylus axostyle 132 extends to axostylus axostyle end face 132a from linking department 131 along the first bearing of trend I0, and possesses a central shaft A0.See it along the first bearing of trend I0, axostylus axostyle 132 comprises a circular arc section 132a1, a coign 132a2 and a straight flange 132a3, and circular arc section 132a1, coign 132a2 and straight flange 132a3 are connected with each other and enclose the profile that constitutes axostylus axostyle end face 132a.Wherein, coign 132a2 and straight flange 132a3 can be considered a location section.

Apart from r0, central shaft A0 and coign 132a2 are at a distance of one first centre distance r1 at a distance of a reference center for central shaft A0 and circular arc section 132a1, and central shaft A0 and straight flange 132a3 are at a distance of one second centre distance r2.Simultaneously, the first centre distance r1 more than or equal to reference center apart from r0, the second centre distance r2 less than reference center apart from r0.

When axostylus axostyle 132 rotates between carrying section 121b and beam barrel internal surface 113, and circular arc section 132a1 is when being contacted with carrying section 121b, and axostylus axostyle 132 can rotate smooth-goingly, but can oppress carrying plate 12, and makes pivot structure 1 that bigger torsion is provided.

When axostylus axostyle 132 rotates between carrying section 121b and beam barrel internal surface 113, and when coign 132a2 or straight flange 132a3 are contacted with carrying section 121b, particularly when coign 131a2 is contacted with carrying section 121b, axostylus axostyle 132 still can be oppressed carrying plate 12, but 132 of axostylus axostyles are difficult for rotating smooth-goingly, and therefore the function of location can be provided.

On the practice aspect, beam barrel 11 can be extended out a linking department, with common composition one female axle (figure does not show), because it is for the popular technology of generally knowing, so do not given unnecessary details.Yet, all in affiliated technical field, have know the narration of the knowledgeable more than reading usually after, should understand above-mentioned pivot structure 1 ubiquity easily and following two subject matters:

One because all elastic restoring forces are provided by carrying plate 12, therefore, is easy to cause the elastic fatigue of carrying plate 12 and causes 1 torsion that can provide of pivot structure to fall sharply.

Its two because in the rotary course of axostylus axostyle 132, location section (particularly coign 131a2) can advance rotation abrasion stroke quite long at carrying section 121b, therefore, is easy to and carrying section 121b produces each other abrasion, and loses locating function.

Summary of the invention

Take a broad view of the above, in the prior art, because carrying plate elastic fatigue easily, the therefore problem that falls sharply of the torsion that can cause pivot structure to provide.Simultaneously, because the location section is easy to and carrying section generation abrasion each other, therefore also can cause the problem of locating function forfeiture again.

Therefore, main purpose of the present utility model is for providing a kind of pivot structure, and it adds an elastic panel and assists elastic restoring force is provided, to slow down the problem of carrying plate elastic fatigue.

Another main purpose of the present utility model is for providing a kind of pivot structure, and it can realize the location with short rotation abrasion stroke.

The utility model for solving the technological scheme that prior art problems adopted is: a kind of pivot structure is provided.This pivot structure comprises a beam barrel, a carrying plate, an axostylus axostyle, at least one axle cap and an elastic panel.Beam barrel has a beam barrel internal surface.The carrying plate is planted along first bearing of trend and is incorporated in the beam barrel, and this carrying plate comprises a plate body and two protrusions, this plate body extends to one second carrying end face from one first carrying end face along this first bearing of trend, and this body comprises a carrying section and extends from the both sides of this carrying section respectively to support at least two support section of this carrying section; Described two protrusions lay respectively at this carrying section, and certainly respectively this first carrying end face second carry end face and stretch out with this, each protrusions has a limit assembly and at least one positioning component respectively.But be incorporated between beam barrel internal surface and the carrying section to the axostylus axostyle turn.Axle cap is incorporated at least one end of this axostylus axostyle, and has a location section, and this location section contacts this positioning component at the beam barrel internal surface with rotation between the carrying section by this axostylus axostyle, so that this positioning component is located this axostylus axostyle.Elastic panel extends to a second end from a first end along this first bearing of trend wavyly, with the support bearing plate, and is limited between the limit assembly of described two protrusions.The beneficial effects of the utility model are: compared to the described pivot structure of prior art, because in whole pivot structure, pivot structure of the present utility model provides elastic restoring force with carrying plate and elastic panel, therefore, the fatigability that can slow down the carrying plate destroys, fail with the torsion that slows down pivot structure, and then prolong the working life of pivot structure.

In addition, in whole rotating distance, only when the location of axle cap section is corresponding with positioning component, just can be located axostylus axostyle; Therefore, rotation abrasion stroke can be effectively shortened,, the working life of pivot structure can also be prolonged to slow down the abrasion of location section.

The specific embodiment that the utility model adopted will be further described by following embodiment and accompanying drawing.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing pivot structure;

Fig. 2 is the front view of existing pivot structure;

Fig. 3 is the three-dimensional exploded view of preferred embodiment of the present utility model;

Fig. 3 A is the partial enlarged drawing in zone shown in Fig. 3 centre circle B; And

When Fig. 4 to Fig. 4 B is the axostylus axostyle drive axle cap rotation of preferred embodiment of the present utility model, the relativeness between public axle, carrying plate and elastic panel.

Wherein, description of reference numerals is as follows:

1 pivot structure, 11 beam barrels

111 first beam barrel end faces, 112 second beam barrel end faces

113 beam barrel internal surfaces, 12 carrying plates

121a, 121c support section 121b carrying section

122 first carrying end faces, 123 second carrying end faces

13 public axle 131 linking departments

131a, 131b connect apertures 132 axostylus axostyles

132a axostylus axostyle end face 132a1 circular arc section

132a2 coign 131a3 straight flange

100 pivot structures, 2 beam barrels

21 beam barrel bodies, 211 first beam barrel end faces

212 second beam barrel end faces, 213 beam barrel internal surfaces

214V shape seam 3 carrying plates

31 plate bodies, 311 first carrying end faces

311a, 311c support section 311b carrying section

312 second carrying end faces, 32,33 protrusions

321 positioning components, 322 limit assemblies

4 elastic panels, 41 first ends

42 the second ends, 43,44 crest sections

45,46,47 trough sections, 5 public axles

A 51 public linking department 511,512 connect apertures

52 axostylus axostyles, 53,54 axle caps

541 rotation side faces, 542,543 assist location projections

544 depression position structure I0, I1 first bearing of trend

The I2 second bearing of trend I3 sense of rotation

A0 central shaft r0 reference center distance

The r1 first centre distance r2 second centre distance

Embodiment

Because pivot structure provided by the utility model can be widely used in and makes various collapsible objects, its combination mode of execution is too numerous to enumerate especially, so give unnecessary details no longer one by one at this, only enumerating wherein, preferred embodiment is specified.

See also Fig. 3 and Fig. 3 A, Fig. 3 is the three-dimensional exploded view of preferred embodiment of the present utility model; Fig. 3 A is the partial enlarged drawing in zone shown in Fig. 3 centre circle B.As shown in the figure, a pivot structure 100 comprises a beam barrel 2, a carrying plate 3, an elastic panel 4 and a public axle 5.Wherein, beam barrel 2 can be extended out a female linking department, to form a female axle (figure does not show), because it is popular technology of generally knowing, so followingly only described with regard to the structural relation between the related beam barrel 2 of the utility model, carrying plate 3, elastic panel 4 and the public affairs spools 5.

Beam barrel 2 has a beam barrel body 21, and beam barrel body 21 extends to one second beam barrel end face 212 from one first beam barrel end face 211 along one first bearing of trend I1, and has a beam barrel internal surface 213.Because beam barrel body 21 forms by the rolling plate into longitudinal that two ends have a recessed edge of a V-arrangement and a V-arrangement flange respectively, even so beam barrel body 21 have a V-arrangement seam 214.

Carrying plate 3 is planted along the first bearing of trend I1 and is incorporated in the beam barrel 2, and comprises a plate body 31, two protrusions 32 and 33.Plate body 31 extends to one second carrying end face 312 from one first carrying end face 311 along the first bearing of trend I1.See it along the first bearing of trend I1, plate body 31 comprises a support section 311a, a carrying section 311b and another support section 311c.Wherein,

support section

311a and 311c extend from the both sides of carrying section 311b respectively, with support bearing section 311b.Simultaneously, support section 311a, carrying section 311b and support section 311c form an approximate M shape cross section.

Protrusions 32 is positioned at carrying section 311b, and stretches out along second a bearing of trend I2 opposite with the first bearing of trend I1 from the first carrying end face 312, and has a certain hyte part 321 and a limit assembly 322.Similarly, protrusions 33 also is positioned at carrying section 311b, and stretches out along the first bearing of trend I1 from the second carrying end face 313, and has a certain hyte part (figure does not show) and a limit assembly (figure does not show).In the present embodiment, this positioning component 322 is a location projection, and 322 of limit assemblies are a limiting stopper.Yet on the practice aspect, positioning component 321 also can be a locating slot.

Elastic panel 4,, with support bearing plate 3 and is limited between the limit assembly 321 of protrusions 32 and the limit assembly of protrusions 33 (figure does not show) along the wavy the second end 42 that extends to of the first bearing of trend I1 from a first end 41.Wherein, elastic panel 4 also has two crest sections 43 and 44 and three

trough sections

45,46 and 47, and

crest section

43,44 and 45, the 46 and 47 alternate configurations of trough section.

Change saying it, elastic panel 4 is from first end 41, in regular turn via trough section 45, crest section 43, trough section 46, crest section 44 and trough section 47, and along the wavy the second end 42 that extends to of the first bearing of trend I1.Simultaneously, first end 41, the second end 42 are limited between the limit assembly 321 of protrusions 32 and the limit assembly of protrusions 33 (figure does not show).First end 41, the second end 42, crest section 43 and 44 are contacted with carrying plate 3, and

trough section

45,46 and 47 is contacted with beam barrel internal surface 213.

Public axle 5 comprises a public linking department 51, an axostylus axostyle 52, reaches two axle caps 53 and 54.Public axle linking department 51 offers two connect apertures 511 and 512.But be incorporated into to axostylus axostyle 52 turns between the carrying section 311b of beam barrel internal surface 213 and carrying plate 31.Axle

cap

53 and 54 is incorporated into the two ends of axostylus axostyle 52, and wherein, axle cap 53 is linked to axostylus axostyle 52.Axle cap 54 has an axle cap side face 541, and axle cap side face 541 is provided with two assist location projections 542,543.

Because assist

location projection

542 and 543 is alternate each other, therefore can between assist

location projection

542 and 543, form the position structure 544 that caves in naturally, and described assist location projection 542,543 and the position structure 544 that caves in can be considered one and locate section.The structure of axle cap 53 is similar to axle cap 54, below is just no longer given unnecessary details.In addition, on the practice aspect, combining between axostylus axostyle 52, the

axle cap

53 and 54 can utilize many modes for it, such as screwing togather, pin joint, riveted joint, interference fit, beating taper key, hot melt reflow or alternate manner.

Please continue to consult Fig. 4 to Fig. 4 B, when it is the axostylus axostyle drive axle cap rotation of preferred embodiment of the present utility model, the relativeness between public axle, carrying plate and elastic panel.Simultaneously, see also Fig. 3 and Fig. 3 A.As shown in Figure 4, when axostylus axostyle 52 rotates between carrying section 311b and beam barrel internal surface 213, can drive axle cap 54 and rotate along a sense of rotation I3.Under general state, the rotation side face 541 rough contact positioning components 321 of axle cap 54 make carrying plate 3 contact at a primary importance P1 with elastic panel 4.

Shown in Fig. 4 A, when axle cap 54 continues the rotation along sense of rotation I3, when making assist location projection 542, can directly push protrusions 32 corresponding to positioning component 321, make carrying plate 3 extruding elastic panels 4, cause carrying plate 3 and contact at a second place P2 with elastic panel 4.

Shown in Fig. 4 B, when axle cap 54 continues the rotation along sense of rotation I3, when making depression position structure 544 corresponding to positioning component 321, positioning component 321 and depression position structure 544 can blockings each other, so that axostylus axostyle 52 is located.

After reading above related technology, all in affiliated technical field, have know that usually the knowledgeable more can understand easily because in whole pivot structure 100, it provides elastic restoring force with carrying plate 3 and elastic panel 4; Therefore, the fatigability that can slow down carrying plate 3 destroys, and fails with the torsion that slows down pivot structure 100, and then prolongs the working life of pivot structure 100.

In addition, in the whole rotating distance of axostylus axostyle, only when the positioning component (figure does not show) of positioning component 321 of locating section (comprising assist location projection 542,543 and depression position structure 544) and protrusions 32 and protrusions 33 is corresponding, just can be located axostylus axostyle 52; Therefore, rotation abrasion stroke can be effectively shortened,, the working life of pivot structure 100 can also be prolonged to slow down the abrasion of location section.

By above-mentioned the utility model embodiment as can be known, the value on the true tool industry of the utility model.Above embodiment's explanation only is preferred embodiment explanation of the present utility model, has in all affiliated technical fields to know that usually the knowledgeable is when doing other all improvement and variation according to the foregoing description explanation of the present utility model.Yet these are according to all improvement and variations that embodiment of the present utility model did, in the protection domain that still belongs to spirit and claim of the present utility model and defined.

Claims

1. a pivot structure that utilizes elastic restoring force that torsion is provided is characterized in that, comprising:

One beam barrel has a beam barrel internal surface;

One carrying plate is incorporated in this beam barrel along the plant of one first bearing of trend, and comprises:

One plate body extends to one second carrying end face from one first carrying end face along this first bearing of trend, and comprises:

One carrying section; And

At least two support section are extended from the both sides of this carrying section respectively, to support this carrying section;

Two protrusions lay respectively at this carrying section, and stretch out from this first carrying end face and this second carrying end face respectively, and each protrusions has a limit assembly and at least one positioning component respectively;

One axostylus axostyle, but turn be incorporated between the internal surface and this carrying section of this beam barrel;

At least one axle cap, be incorporated at least one end of this axostylus axostyle, and have a location section, this location section contacts this positioning component at the internal surface of this beam barrel with rotation between this carrying section by this axostylus axostyle, so that this positioning component is located this axostylus axostyle;

One elastic panel,, supporting this carrying plate and is limited between this limit assembly of described two protrusions along the wavy the second end that extends to of this first bearing of trend from a first end.

2. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this limit assembly is a limiting stopper.

3. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this positioning component is a location projection.

4. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this location section comprises at least one depression position structure.

5. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 4 is characterized in that, this depression position structure is formed between two alternate each other assist location projections at least.

6. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this axle cap has an axle cap side face, and this positioning area section is positioned on this axle cap side face.

7. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this carrying section and described at least two support section form an approximate M shape cross section.

8. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this elastic panel also comprises at least one crest section and at least one trough section, and this crest section and the alternate configuration of this trough section.

9. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 8 is characterized in that, this crest section is contacted with this carrying plate.

10. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 8 is characterized in that, this trough section is contacted with this beam barrel internal surface.

11. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this first end and this second end are limited in respectively between this limit assembly of described two protrusions, and are contacted with this carrying plate.

12. the pivot structure that utilizes elastic restoring force that torsion is provided as claimed in claim 1 is characterized in that, this axle cap also links a public linking department, to form a public axle.