CN202180892U

CN202180892U - Folding joint of folding bicycle

Info

Publication number: CN202180892U
Application number: CN2011202755597U
Authority: CN
Inventors: 俞峰; 雷兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-29
Filing date: 2011-07-29
Publication date: 2012-04-04
Anticipated expiration: 2021-07-29

Abstract

A folding joint of a folding bicycle comprises an upper folding plate, a lower folding plate, a locking structure and a handle. The upper folding plate and the lower folding plate are hinged together, and an eccentric wheel is embedded at the bottom end of the handle and rotationally matches with the handle via an eccentric hole so as to drive a linkage mechanism to drive the locking structure to be locked. The folding joint of the folding bicycle is characterized in that a rotating shaft hole and an opening groove are arranged at the bottom end of the handle, the rotating shaft hole matches with the eccentric wheel, the opening groove matches with an eccentric rotary rod of the eccentric wheel, a rotating shaft matches with the rotating shaft hole so that the eccentric wheel is hinged with the handle, and the eccentric rotary rod matches with the opening groove so that the handle drives the eccentric wheel to move eccentrically. After the eccentric wheel and the handle are assembled via the rotating shaft, the opening groove on the handle can be clamped on the eccentric rotary rod of the eccentric wheel, when the handle rotates, the opening groove drives the eccentric wheel to rotate eccentrically, rotation of the handle can be converted into linear movement of a connecting ring via the connecting ring, so that loosing and clamping are realized, difficulty of manufacturing process of the handle is reduced, and work efficiency is improved.

Description

Folding bicycle is used folding joint

[technical field]

The utility model relates to the folding bicycle parts, relates in particular to a kind of folding joint that is used for the folding bicycle main support.

[background technology]

Foldable bicycle all need dispose a folding joint, and the effect that folding joint plays is exactly to be used for fixing and folded state conversion on the trunk support.So the basic structure of folding joint just comprises hinged folded sheet up and down and can lock the locking mechanism of folded sheet up and down.

Use according to different parts need be used, and folding joint also has various structure, has plenty of from the pivotally attached opposite and locks and fasten; Also have plenty of from hinged side and lock and fasten, what be directed against now is that a kind of structure is that clamp handle is arranged on hinged side, and this folding joint has two folded sheets; The hinged side of folded sheet has a plurality of hinge holes arranged side by side with one heart that interlace respectively; Hinge axis runs through each hinge hole, realizes the hinged of two folded sheets, has one at the hinged offside of folding joint and can move locking and unclamp the locking mechanism of folded sheet up and down; And said locking mechanism receives the folding handle control that is arranged on the pin jointed end homonymy through a linkage part; The spinning movement of handle is transferred to locking mechanism and becomes translation motion, can drive the eccentric wheel that linkage part moves so be provided with one in the handle bottom, and the handle bottom has two holes; One is that one of eccentric wheel hole is at rotational axis hole; So the craft precision for handle requires height, the manufacture craft difficulty is big, and this becomes the technical barrier of a key.

[summary of the invention]

The utility model has proposed a kind of simplification handle technology according to above problem, is lowered into the product difficulty, practices thrift the folding bicycle folding joint of cost.

The technical scheme of the utility model is: said folding bicycle is used folding joint; Comprise hinged last folded sheet and following folded sheet, at the locking mechanism of the upper and lower folded sheet of locking of pin jointed end offside be arranged on the handle that the drive locking mechanism of pin jointed end moves; The embedded eccentric wheel in said handle bottom; Drive a link gear through eccentric orfice and handle normal-running fit and drive locking mechanism locking; It is characterized in that; Said handle bottom has shaft hole and the eccentric eccentric revolving bar adaptive open slot suitable with eccentric wheel, through rotating shaft and cooperating of shaft hole realizing the hinged of eccentric wheel and handle, through eccentric revolving bar and cooperating of open slot realizing the eccentric eccentric motion of handle drives.

Said open slot is along radially breaking off eccentric circumference.

Said handle, eccentric wheel and folded sheet is hinged through a rotating shaft up and down.

Said link gear is the rod member that an end has annulus, and said annulus is enclosed within eccentric wheel periphery circle residence and states eccentric wheel, and the other end and locking mechanism interlock.

Said eccentric revolving bar departs from the eccentric wheel center of circle and is arranged on the eccentric wheel, can be cemented on the eccentric wheel or through the axis hole flush fit to be connected with eccentric wheel.

The beneficial effect of the utility model: rotating shaft with the assembling of eccentric wheel and handle after; Open slot on the handle can be stuck on the eccentric eccentric revolving bar, and when turning handle, open slot will be with eccentric wheel to do eccentric rotary; The straight line that can the rotation of handle be converted into coupling link through coupling link moves; Thereby realize unclamping and clamping, and reduced the manufacture craft difficulty of handle, increase work efficiency.

[description of drawings]

Fig. 1 is the utility model one example structure scheme drawing;

Fig. 2 is that partial component splits scheme drawing in the present embodiment.

Wherein: 1, go up folded sheet; 2, locking mechanism; 3, adjusting screw(rod); 4, following folded sheet; 5, link gear; 6, eccentric wheel; 7, rotating shaft; 8, eccentric revolving bar; 9, handle; 10, shaft hole; 11, open slot.

[specific embodiment]

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.

Embodiment 1: said folding bicycle is used folding joint; The handle 9 that comprises hinged last folded sheet 1 and following folded sheet 4, moves at the drive locking mechanism that is used to lock the locking mechanism 2 of upper and lower folded sheet and be arranged on pin jointed end of pin jointed end offside; The embedded eccentric wheel 6 in said handle 9 bottoms; Drive a link gear 5 through eccentric orfice 6 and handle 9 normal-running fiies and drive locking mechanism 2 lockings; It is characterized in that; Said handle 9 bottoms have the open slot 11 adaptive with the eccentric revolving bar of suitable shaft hole 10 of eccentric wheel 6 and eccentric wheel 68, through realizing rotating shaft 7 and cooperating of shaft hole 10 the hinged of eccentric wheel 6 and handle 9, through the eccentric motion that cooperate realization handle 9 driving eccentric wheel 6 of eccentric revolving bar 8 with open slot 11.

Said open slot is along radially breaking off eccentric circumference.

Said handle 9, eccentric wheel 6 and folded sheet is hinged through a rotating shaft up and down.

Said link gear 5 is rod members that an end has annulus, and said annulus is enclosed within circle residence, the eccentric wheel outside and states eccentric wheel 6, and the other end and locking mechanism 2 interlocks.

Said eccentric revolving bar departs from the eccentric wheel center of circle and is arranged on the eccentric wheel, adopts integral type to be cemented on the eccentric wheel or through the axis hole flush fit and is connected with eccentric wheel.

Said link gear 5 is exactly that a coupling link is enclosed within the eccentric wheel periphery; Position when eccentric wheel rotates on the vertical direction of elimination eccentric wheel eccentric motion; The horizontal direction that the transmission eccentric motion brings is mobile, drives catch gear with this and moves locking.

At link gear 5 and locking mechanism 2 middle adjusting screw(rod)s 3 in addition, the effect of adjusting screw(rod) 3 is to regulate the relative distance between locking mechanism 2 and the link gear 5.

When in use, handle 9 bottoms and upper and lower folded sheet are hinged through rotating shaft 7, and upper and lower folded sheet can rotate in folding; Handle also can turn; The embedded eccentric wheel in the handle bottom, said eccentric wheel is hinged in the rotating shaft equally, but has an eccentric revolving bar in the rotating shaft position side; Said eccentric revolving bar cooperates with the open slot of handle bottom, realizes the interlock of eccentric wheel and handle., promptly rotate, and eccentric eccentric rotary will drive moving of link gear, thereby finally drive catch gear locking open and close movement through handle rotating band movable eccentric wheel.

In other a kind of specific embodiment, can adopt has eccentric orfice on the eccentric wheel, is combined together and the eccentric orfice on eccentric revolving bar and the eccentric wheel is an axis hole.

Claims

1. a folding bicycle is used folding joint; Comprise hinged last folded sheet and following folded sheet, at the locking mechanism of the upper and lower folded sheet of locking of pin jointed end offside be arranged on the handle that the drive locking mechanism of pin jointed end moves; The embedded eccentric wheel in said handle bottom; Drive a link gear through eccentric orfice and handle normal-running fit and drive locking mechanism locking; It is characterized in that; Said handle bottom has shaft hole and the eccentric eccentric revolving bar adaptive open slot suitable with eccentric wheel, through rotating shaft and cooperating of shaft hole realizing the hinged of eccentric wheel and handle, through eccentric revolving bar and cooperating of open slot realizing the eccentric eccentric motion of handle drives.

2. use folding joint according to the said folding bicycle of claim 1, it is characterized in that, said open slot is along radially breaking off eccentric circumference.

3. use folding joint according to the said folding bicycle of claim 1, it is characterized in that, said handle eccentric wheel and up and down folded sheet through a rotating shaft hinged.

4. use folding joint according to the said folding bicycle of claim 1, it is characterized in that, said link gear is the rod member that an end has annulus, and said annulus is enclosed within eccentric wheel periphery circle residence and states eccentric wheel, and the other end and locking mechanism interlock.

5. use folding joint according to the said folding bicycle of claim 1, said eccentric revolving bar departs from the eccentric wheel center of circle and is arranged on the eccentric wheel, adopts integral type to be cemented on the eccentric wheel or through the axis hole flush fit and is connected with eccentric wheel.