CN103640657B - A kind of folding bicycle vertical tube and the fixed connection apparatus of joint - Google Patents
A kind of folding bicycle vertical tube and the fixed connection apparatus of joint Download PDFInfo
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- CN103640657B CN103640657B CN201310707831.8A CN201310707831A CN103640657B CN 103640657 B CN103640657 B CN 103640657B CN 201310707831 A CN201310707831 A CN 201310707831A CN 103640657 B CN103640657 B CN 103640657B
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- vertical tube
- lower contact
- front fork
- joint
- bolt
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Abstract
A kind of fixed connection apparatus of folding bicycle vertical tube and joint, comprising: vertical tube of front fork, the lower contact being enclosed within this vertical tube of front fork front end, hold-down bolt that described lower contact is connected with vertical tube of front fork.Described lower contact is complete continuous print annular component, and the endoporus of lower contact is up-small and down-big bellmouth, and the tapered collet that a wall body at least has two deformation grooves coordinates with bellmouth；One cylindrical is provided with the sliding nut of upper and lower bulge loop and threadeds with hold-down bolt, and sliding nut is connected with the endoporus hook of tapered collet by its lower convex ring, and this sliding nut cylindrical is additionally provided with and prevents its stopper slot rotated relative to tapered collet.Elastic deformation by the tapered collet between vertical tube of front fork and lower contact inner circle so that vertical tube of front fork firmly couples together with lower contact, substantially increases the reliability that lower contact is connected with vertical tube of front fork.
Description
Technical field
The present invention relates to be mechanically fixed bindiny mechanism, especially relate to the fixed connection apparatus of a kind of vertical tube for folding bicycle handlebar and joint.
Background technology
Folding bicycle, with its fast folding or the feature of expansion, obtains liking of consumers in general.After bicycle folds, volume diminishes, and greatly facilitates transport and storage；Can use safely again after expansion, it is simple to people's sport and body-building or ride instead of walk.The vertical tube of handlebar and the standpipe of front fork are arranged on the vehicle frame front end of bicycle, and the vertical tube of usual handlebar is connected with the standpipe of front fork by a folding joint.This folding joint is made up of upper and lower two joints that one end is hinged.Top connection is fixing with the vertical tube lower end of handlebar to be connected, as shown in Figure 1, lower contact 2 is designed to the garter spring structure of opening vertically, the lower contact 2 of this garter spring shape is enclosed within the periphery on vertical tube of front fork 1 top, it is connected with the female thread of vertical tube of front fork 1 port with the hold-down bolt 3 of relatively king-bolt head with one again, this hold-down bolt 3 is i.e. utilized lower contact 2 to be axially connected with vertical tube of front fork 1, then the lower contact 2 of this garter spring shape is tightened, so that the inner circle of lower contact 2 is connected with vertical tube of front fork 1 banding circumference firmly firmly by recycling adjustment screw 4.Utilizing the feature that upper and lower two joints of folding joint can rotate around its jointed shaft, the vertical tube of described handlebar can fold or launch.After the vertical tube of handlebar launches to hold up, upper and lower two joints overlap, and must be securely fixed by upper and lower two joints with retaining mechanism simultaneously.So so that the vertical tube of handlebar and the standpipe of front fork become the one of rigidity, such that it is able to the riding bicycle of safety.
Due to, lower contact is garter spring structure, and this garter spring is in the periphery of vertical tube of front fork by the elastic deformation banding of its inner circle.At this moment the inner circle of the lower contact after deformation is not the most the circle of standard, therefore contacting of its cylindrical with vertical tube of front fork is not the face contact of complete cycle, but localized contact so that frictional force between the two is greatly reduced, and under the influence of the connection reliability of joint and vertical tube of front fork.Additionally, after the inner circle of lower contact deforms, when using retaining mechanism to lock upper and lower two joint, because can not synchronize deform with the circular arc of the latch segment that the inner circle of lower contact coordinates, locking may be caused to lose efficacy, make upper and lower two splice failures, thus bring potential safety hazard to the people of riding bicycle.Offer adjustment screw hole at lower contact side, affect component strength and unsightly；Assembly or disassembly is the most inconvenient.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of safe and reliable, adjust the fixed connection apparatus of standpipe of bicycle and joint easily.
The fixed connection apparatus of a kind of folding bicycle vertical tube and joint that the present invention proposes, comprising: vertical tube of front fork, the lower contact being enclosed within this vertical tube of front fork front end, hold-down bolt that described lower contact is connected with vertical tube of front fork.Described lower contact is complete continuous print annular component, and the endoporus of lower contact is up-small and down-big bellmouth, and the tapered collet that a wall body at least has two deformation grooves coordinates with bellmouth；One cylindrical is provided with the sliding nut of upper and lower bulge loop and threadeds with hold-down bolt, and sliding nut is connected with the endoporus hook of tapered collet by its lower convex ring, and this sliding nut cylindrical is additionally provided with and prevents its stopper slot rotated relative to tapered collet.
Preferably, what described tapered collet two ends were staggered has 12 symmetrically arranged deformation grooves altogether.
The bolt head top of described hold-down bolt is provided with one of shrinkage pool of flat recess, cross recess or interior hexagonal.
Preferably, the bolt head of described hold-down bolt is hexagon socket head cap screw head.
Described vertical tube of front fork inner circle is preset with one and fixes nut, hexagonal shrinkage pool is provided with in the bolt head of described hold-down bolt a bolt and is connected with described fixing nut.
The present invention changes the lower contact structure of traditional garter spring formula, and lower contact is designed to complete circulus, need not open an axial deformation groove.The tapered collet inner chamber hook that hold-down bolt is provided with deformation groove by sliding nut and connects, and tapered collet coordinates with the bellmouth of lower contact.When rotatably compressing bolt just so that sliding nut moves up and down, when sliding nut moves up, just can pull and move in tapered collet, the cone-shaped inner hole of lower contact simultaneously will produce the restraining forces of circumference to tapered collet, so utilizes the elastic deformation of tapered collet that vertical tube of front fork is stuck in the cone-shaped inner hole of lower contact tightly.This structure can form the deformation stress of whole even circumferential, i.e. can keep cylindrical the contacting by tapered collet whole periphery with the inner circle of lower contact of vertical tube of front fork, so as the frictional force between raising connector, additionally, it is connected with the fixing nut being located in vertical tube of front fork by bolt, strengthen vertical tube of front fork to be connected, so that lower contact is reliable with the attachment security of vertical tube of front fork with the axial of lower contact.Also it is held round due to the inner circle of lower contact again, it is possible to ensure that upper and lower two joints are securely fixed integral by the retaining mechanism folded in device, thus eliminate the potential safety hazard of riding bicycle.It addition, the axial axial dimension of lower contact can increase, so that stiffness of structural member strengthens；Assembly or disassembly is the most very convenient.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, wherein:
Fig. 1 is the structural representation of prior art；
Fig. 2 is the decomposing schematic representation of present pre-ferred embodiments；
Fig. 3 is the sectional view of present pre-ferred embodiments；
Fig. 4 and Fig. 5 is sliding nut and the schematic perspective view of tapered collet of present pre-ferred embodiments.
Detailed description of the invention
Fig. 2, Fig. 3 show the composition of present pre-ferred embodiments.Folding bicycle stem 12 and vertical tube of front fork 1 are arranged on the vehicle frame front end of bicycle, and usual stem 12 is connected with vertical tube of front fork 1 by a folding joint.This folding joint is made up of hinged upper and lower two joints 13,2.Top connection 13 is fixing with stem 12 lower end to be connected, and lower contact 2 is connected with vertical tube of front fork 1.The fixed connection apparatus for bicycle front fork stand-pipe 1 with lower contact 2 that present pre-ferred embodiments proposes, comprising: vertical tube of front fork 1, the lower contact 2 being enclosed within this vertical tube of front fork 1 front end, hold-down bolt 3 that lower contact 2 is connected with vertical tube of front fork 1.Lower contact 2 is complete continuous print annular component, and the endoporus of lower contact 2 is up-small and down-big bellmouth, and the tapered collet 5 that a wall body at least has two deformation grooves 8 coordinates with described bellmouth.The present embodiment, incorporated by reference to Fig. 4, tapered collet 5 upper/lower terminal have symmetry six deformation grooves 8, a total of 12, and these two groups deformation grooves 8 for being crisscross arranged.Incorporated by reference to Fig. 5, sliding nut 6 is threadeded with hold-down bolt 3, the cylindrical of sliding nut 6 is provided with bulge loop 20 and lower convex ring 7, sliding nut 6 is connected with the endoporus upper end hook of tapered collet 5 by its lower convex ring 7, and this sliding nut 6 cylindrical is additionally provided with and prevents its stopper slot 9 rotated relative to tapered collet 5.It is hexagon socket head cap screw head that the bolt head top of hold-down bolt 3 is provided with the interior hexagonal shrinkage pool 14 being easy to rotatably compress bolt, i.e. hold-down bolt 3.Being preset with one in vertical tube of front fork 1 inner circle and fix nut 10, bolt 11 is connected through hexagonal shrinkage pool in the bolt head of hold-down bolt 3 with fixing nut 10.As required, the bolt head top of hold-down bolt 3 can also be arranged to flat recess or cross recess, it is also possible to the bolt head of hold-down bolt 3 is set to hexagonal bolt head, may be incorporated for mounting or dismounting hold-down bolt 3.
During use, rotatably compress bolt 3, sliding nut 6 is moved up simultaneously and pulls shifting in tapered collet, the cone-shaped inner hole of lower contact will produce the restraining forces of circumference to tapered collet, so utilize the elastic deformation tightly banding vertical tube of front fork cylindrical of tapered collet, so that vertical tube of front fork is stuck in the cone-shaped inner hole of lower contact tightly.This structure can form the whole uniform stress of vertical tube of front fork periphery, so as the frictional force between raising connector, additionally, it is connected with the fixing nut 10 being located in vertical tube of front fork by bolt 11, strengthen vertical tube of front fork to be connected, so that lower contact is reliable with the attachment security of vertical tube of front fork with the axial of lower contact.Adjust hold-down bolt 3 and screw in the degree of depth of sliding nut 5, the dynamics that lower contact 2 is connected with vertical tube of front fork 1 can be regulated.When opening, first bolt 11 is departed from fixing nut 10, then hold-down bolt 3 is unscrewed, and down press hold-down bolt, utilize the upper bulge loop 20 of sliding nut 6 to make tapered collet downwards and lower contact departs from, so that it may take off lower contact.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (5)
1. a folding bicycle vertical tube and the fixed connection apparatus of joint, the lower contact (2) including vertical tube of front fork (1), being enclosed within this vertical tube of front fork (1) front end, the hold-down bolt (3) that described lower contact (2) is connected with vertical tube of front fork (1), it is characterized in that: described lower contact (2) is complete continuous print annular component, the endoporus of lower contact (2) is up-small and down-big bellmouth, and the tapered collet (5) that a wall body at least has two deformation groove (8) coordinates with described bellmouth；One cylindrical is provided with the sliding nut (6) of upper and lower bulge loop (20,7) and threadeds with described hold-down bolt (3), sliding nut is connected with the endoporus hook of described tapered collet (5) by its lower convex ring (7), and this sliding nut (6) cylindrical is additionally provided with and prevents its stopper slot (9) rotated relative to tapered collet (5).
2. folding bicycle vertical tube as claimed in claim 1 and the fixed connection apparatus of joint, it is characterised in that: what described tapered collet (5) two ends were staggered has 12 symmetrically arranged deformation grooves (8) altogether.
3. folding bicycle vertical tube as claimed in claim 1 and the fixed connection apparatus of joint, it is characterised in that: the bolt head top of described hold-down bolt (3) is provided with one of shrinkage pool of flat recess, cross recess or interior hexagonal.
4. folding bicycle vertical tube as claimed in claim 3 and the fixed connection apparatus of joint, it is characterised in that: the bolt head of described hold-down bolt (3) is hexagon socket head cap screw head.
5. folding bicycle vertical tube as claimed in claim 4 and the fixed connection apparatus of joint, it is characterized in that: described vertical tube of front fork (1) inner circle is preset with one and fixes nut (10), hexagonal shrinkage pool is provided with in the bolt head of described hold-down bolt (3) bolt (11) and is connected with described fixing nut (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310707831.8A CN103640657B (en) | 2013-12-20 | 2013-12-20 | A kind of folding bicycle vertical tube and the fixed connection apparatus of joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310707831.8A CN103640657B (en) | 2013-12-20 | 2013-12-20 | A kind of folding bicycle vertical tube and the fixed connection apparatus of joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103640657A CN103640657A (en) | 2014-03-19 |
| CN103640657B true CN103640657B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310707831.8A Active CN103640657B (en) | 2013-12-20 | 2013-12-20 | A kind of folding bicycle vertical tube and the fixed connection apparatus of joint |
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| CN (1) | CN103640657B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045486A (en) * | 2017-12-18 | 2018-05-18 | 北京摩拜科技有限公司 | Vertical component and a kind of bicycle |
| CN110394861A (en) * | 2018-04-24 | 2019-11-01 | 佛山市铭之科精密配件有限公司 | A kind of novel magazine tool driver |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400676A (en) * | 1993-12-14 | 1995-03-28 | Kao; Yu-Chen | Bicycle handlebar stem mounting device |
| US5647684A (en) * | 1995-05-16 | 1997-07-15 | Chen; Chia-Ching | Two-step and toothless bicycle head shaft bowl set |
| BE1009407A3 (en) * | 1995-06-13 | 1997-03-04 | Cauwenberghe Roger Van | Marker post |
| US7815206B2 (en) * | 2008-05-30 | 2010-10-19 | Peng-Yu Tseng | Securing device for a bicycle front fork |
| CN202464039U (en) * | 2011-12-29 | 2012-10-03 | 胡明 | Locking and connecting device for inclined plane of handlebar stem of bike |
| CN103318325A (en) * | 2012-03-20 | 2013-09-25 | 蔡崇霖 | Storing and fixing device for pipe fitting |
| CN203698556U (en) * | 2013-12-20 | 2014-07-09 | 深圳市富厚自行车配件有限公司 | Fixed connection device of vertical tube and joint of folding bicycle |
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2013
- 2013-12-20 CN CN201310707831.8A patent/CN103640657B/en active Active
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| CN103640657A (en) | 2014-03-19 |
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Effective date of registration: 20210514 Address after: No.8, Jinsha South Road, Shajiao, Shipai town, Dongguan City, Guangdong Province, 523348 Patentee after: Guangdong Huming Automobile Co.,Ltd. Address before: 518000 1st floor, no.29-29, Minfu Road, Shatou Industrial Zone, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN FOHO BICYCLE FITTINGS Co.,Ltd. |
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