CN104149906B

CN104149906B - A kind of quick longitudinal folding vehicle frame

Info

Publication number: CN104149906B
Application number: CN201410383157.7A
Authority: CN
Inventors: 黎龙飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-05
Filing date: 2014-08-05
Publication date: 2017-11-24
Anticipated expiration: 2034-08-05
Also published as: CN104149906A; WO2016019639A1

Abstract

The invention discloses a kind of folding bicycle, its vehicle frame, which can be divided into front fork and fold unit and back vent, folds unit two parts, and folded form is longitudinal folding, and mode of operation is twists or plug head tube and seatpost.For this Novel frame by the one that is folded and placed to of front fork and head tube, back vent folds is accommodated in one with seatpost, utilizes two to fold the foldings that units realize four positions of vehicle frame.Can effectively solve the problems, such as the rigidity and durability deficiency of existing folding voluntarily, there is the characteristics of succinct reliable, the lines flow smoothly, operation is easily graceful, and volume after folding is small and folding rate is fast.

Description

A kind of quick longitudinal folding vehicle frame

Technical field

Patent of the present invention is related to bicycle, and in particular to it is a kind of can longitudinal fast folding bicycle.

Background technology

In recent years, cycling is spread apart in the compatriots for increasingly paying attention to quality of life comes, and associated is automobile therewith Popularize and spread out with the extensive of public transport, because of the two factors, portable folding bicycle has also obtained extensive receiving With use.Common folding bicycle folding mode generally laterally folds on the market, i.e., is controlled by using handle in crossbeam And the box-type folding button on other positions realizes the folding of vehicle frame and expansion, this mode has that process is simple, cost is cheap The advantages that, but it is located at crossbeam and head tube root because it folds position, its rigidity and durability are unsatisfactory.In common transverse direction Outside folding bicycle, the folding bicycle for having part higher gears uses longitudinal folding design, and is derived from preferable safety Property and durability, but these longitudinal folding vehicle frames still have complicated, cumbersome, and volume after folding is bigger than normal and falls chain etc. Shortcoming.

The content of the invention

Patent of the present invention aims to provide a kind of longitudinal fold bicycle, and it has, and folding is quick, simple and reliable for structure, beautiful outline form See, exempt from the characteristics of handle operates.

The present invention is achieved in that longitudinal fast folding car, including back vent folds unit and front fork folds unit two Point.

The seat pipe of the vehicle frame main beam is provided with through hole, can stretch into back vent hook.

The seatpost lower end is provided with non-circular irregular opening, the next fork fixture of cocker.

The head tube lower end is different from time lower end pipe axle center, and user is by being rotatably inserted into the head of front fork upper tube and front fork Pipe realizes being locked for front fork.

The front fork stops bolt equipped with spring, and spring, which stops bolt, includes fixed screw, spring leaf and latch, and spring stops bolt and passed through admittedly Determine screw and be fixed on front fork root end, latch is pushed down into the through hole of front fork root end in the compressing of spring leaf.

The spring stop bolt latch pitch before insertion after can be contacted with head tube, head tube insertion front fork after made by rotation The latch that its through hole stops bolt with spring overlaps, and by stopping indenter pipe through-hole under the pressure of the spring, then fixes head tube and front fork.

The present invention realizes the folding of front fork and back vent by controlling plug and the rotation of head tube and seatpost, and user can be double Hand controls head tube and seatpost respectively, while is folded and deployed, have it is simple and efficient to handle, simple and reliable for structure, moulding is excellent It is U.S. smooth, vehicle frame rigidity can be effectively improved, exempts and bends over to carry out the cumbersome of multiple position folding fastener operations.

Brief description of the drawings

Fig. 1 is the overall vertical view of vehicle frame and side view；

Fig. 2 is vertical view and side view under vehicle frame folding state；

Fig. 3 is the exploded view of vehicle frame；

Fig. 4 is that back vent folds unit detail view 1；

Fig. 5 is that back vent folds unit detail view 2；

Fig. 6 is that front fork folds unit detail view 1；

Fig. 7 is that front fork folds unit detail view 2；

Fig. 8 is front fork section components exploded view；

Embodiment

A kind of longitudinal Quickfolding bicycle of the present invention is described in further detail below in conjunction with the accompanying drawings.

In Figure of description, longitudinal Quickfolding bicycle eliminate a bowl group, it is vertical, horizontal stroke, wheel group, sit wrap, brake The part such as car system and drive system, these parts can use prior art, be not belonging to present disclosure category, this area Technical staff can have no effect on the technique effect of the present invention according to being actually needed using existing part, will not be described here.

This longitudinal Quickfolding bicycle includes head tube 1, pipe bundle clip 2, front fork upper tube 3, front fork 4, spring and stops bolt 5, vehicle frame The parts such as girder 6, seatpost 7, seatpost folder 8, back vent 9, front fork hinge 10, back vent hinge 11.

This longitudinal Quickfolding bicycle can be divided into back vent generally and fold unit and front fork folding unit, and back vent folds unit Control-rod be seatpost 7, the control-rod that front fork folds unit is head tube 1.

The back vent fold unit part have girder seat pipe 15, seatpost 7, seatpost folder 8, back vent 9, vehicle frame main beam 6 with Connected between back vent 9 with hinge 11.

Further, girder seat pipe 15 has through hole with seatpost 7, and seatpost opening 12 is non-circular irregular or opening, And it can be overlapped under the control of seatpost folder 8 with girder seat pipe through hole 13.

Further, there is an adjustable screw 14 between back vent 9 and girder seat pipe 15, the umbrella head of the screw can be in hinge 11 Stretched under control in girder seat pipe through hole 13.

Further, after adjustable screw 14 stretches into girder seat pipe through hole 13, seatpost opening 12 is sequentially stretched into, user is subsequent Seatpost is further compressed such that the umbrella head of adjustable screw 14 is fixed in seatpost inwall, thus operation link, can make Obtain seatpost, girder seat pipe, back vent three realization fixation.

Further, user implement unclamp attended operation when, it is only necessary to stir seatpost 7 so that adjustable screw 14 according to Secondary extraction seatpost opening 12 and girder seat pipe through hole 13, subsequent foldable back vent 9 is with extracting seatpost 7.

It is corresponding, front fork fold unit include head tube 1, pipe bundle clip 2, front fork upper tube 3, front fork 4, spring stop bolt 5 and The grade of front fork hinge 10 part forms.

Further, it is connected between front fork 4 and front fork upper tube 3 by hinge 10, girder head is then fixed on pipe bundle clip 2 On pipe 16.

Further, head tube 1 is made up of more than three sections of pipe, and bottom pipe 22 and secondary lower end pipe 21 are inserted respectively Enter in front fork heel apertures 26 and front fork upper tube 3.

Further, the external diameter of the bottom pipe 22 in head tube 1 is slightly less than time lower end pipe 21, and the axle center of two pipes is simultaneously Differ, the external diameter of the two is tangent.

Further, axis parallel but misaligned, front fork heel apertures of the inwall axle center of front fork upper tube 3 with front fork heel apertures 26 26 axle center is slightly offset compared with the inwall axle center of front fork upper tube 3 to back vent direction.

Further, the bottom pipe of head tube 1 can be by inserting front fork heel apertures 26, and profit after the inwall of front fork upper tube 3 With its offset, by being rotated up to fixed front fork upper tube 3, front fork 4 and the purpose of its own.

Further, the spring being fixed on by front fork screw hole 25 on front fork stops bolt 5 by fixed screw 19, spring leaf 27th, latch 20 forms.

Further, latch 20 inserts front fork through hole 24 in the pressure of spring leaf 27, is then in contact with head tube 1, head The appropriate location of pipe bottom pipe 23 is provided with through hole 23, rotation head tube 1 with fix front fork 4, front fork upper tube 3 and its own In action, the latch 20 that head tube through hole 23 stops bolt 5 with spring overlaps, and latch 20 inserts head tube through hole under the pressure of spring leaf 27 23, reach the purpose for preventing head tube 1 from continuing rotation and improper extraction.

The folding operation that unit is folded due to head tube is mainly completed by the rotation of head tube, so the hinge of front fork upper tube 3 Pipe, which is provided with, to be stopped into projection 18, and the lower end of the girder head tube 16 of corresponding vehicle frame main beam 6 is provided with two convex beaks 17.

Further, in fixed front fork folds the operation of unit, head tube 1 inserts front fork upper tube 3 and front fork heel apertures 26, And drive front fork upper tube 3 and front fork 4 to be rotated using the axle center of girder head tube 16 as axle, when rotating to a certain position, on front fork Stopping for pipe 3 is inconsistent with a convex beak 17 in girder head tube 16 into projection 18, therefore front fork upper tube 3 and front fork 4 are fixed, Head tube is able to independent rotation, with only by being rotated up to fixed head tube 1, front fork upper tube 3 and the purpose of front fork.

Further, when user will carry out folding the operation of front fork, head tube 1 only need to be rotated in the opposite direction, has been fixed Head tube 1 when driving the front fork upper tube 3, front fork 4 to rotate to a certain position, stopping in front fork upper tube 3 is convex with another into projection 18 Beak is inconsistent, and by the rotation that can not only follow up, the spring being also secured on front fork 4 stops the spring of bolt 5 for front fork upper tube 3 and front fork 4 The upper end of piece 27 contacts with the convex beak 17 of the other end, and is upspring in the presence of this convex beak 17, drives latch 20 to detach head tube and leads to Hole 23, thus, while two factors act under, head tube is able to continue to rotate, loosen head tube 1, front fork upper tube 3, front fork 4 it Between fixation, and extract, then front fork 4 is that axle carries out jackknife action with front fork hinge 10.

After the plug and the rotation of head tube 1 for controlling seatpost 7 respectively by both hands, back vent 9 and front fork 4 are able to girder 6 directions are longitudinal folding, and subsequent seatpost 7 and head tube 1 are extracted and be put into the space between the back vent 9 of front fork 4 after folding completely, complete Into jackknife action.

When user wants to deploy vehicle frame, it is only necessary to which two hands point hold the upper end of head tube 1 and seatpost 7, insert respectively on front fork In pipe 3 and girder seat pipe 15, quickly fixed vehicle frame action is realized by principle described above.

Claims

1. a kind of longitudinal fast folding vehicle frame, including back vent fold unit and fold unit with front fork, front fork folds the folding of unit By head tube（1）Rotation triggering, back vent fold the folding of unit by seatpost（7）Plug triggers, and back vent, which folds unit, includes girder seat Pipe（15）, seatpost（7）, seatpost folder（8）, back vent（9）, back vent hinge（11）, it is characterized in that girder seat pipe（15）Lead to provided with seat pipe Hole（13）, back vent（9）Front portion is provided with adjustable screw（14）, seatpost through hole is arranged at seatpost bottom（12）, the folding of back vent folding unit It is to utilize seatpost through hole（12）Block with unclamping by seat pipe through hole（13）And the back vent stretched into（9）Adjustable screw（14）Come while solid Fixed and seatpost of loosening（7）And back vent（9）.

A kind of 2. longitudinal fast folding vehicle frame according to claim 1, it is characterized in that front fork, which folds unit, includes head tube （1）, pipe bundle clip（2）, girder head tube（16）, front fork upper tube（3）, front fork（4）, spring stop bolt（5）, front fork hinge（10）.

A kind of 3. longitudinal fast folding vehicle frame according to claim 2, it is characterized in that head tube（1）By different multiple of external diameter Pipe forms, its lower end pipe（22）And secondary lower end pipe（21）It can be inserted into front fork upper tube（3）And front fork root perforate（26）.

A kind of 4. longitudinal fast folding vehicle frame according to claim 3, it is characterized in that head tube（1）Lower end pipe（22）External diameter It is slightly less than time lower end pipe（21）, two pipe axis parallels but not conllinear.

A kind of 5. longitudinal fast folding vehicle frame according to claim 4, it is characterized in that lower end pipe（22）Justify with secondary lower end Pipe（21）External diameter is tangent.

A kind of 6. longitudinal fast folding vehicle frame according to claim any one of 2-4, it is characterized in that head tube（1）Before insertion Pitch upper tube（3）And front fork root perforate（26）Afterwards fixed front fork is realized by rotating（4）And head tube（1）.

A kind of 7. longitudinal fast folding vehicle frame according to claim 2, it is characterized in that spring stops bolt（5）By fixed screw （19）, spring leaf（27）, latch（20）Composition.

A kind of 8. longitudinal fast folding vehicle frame according to claim 7, it is characterized in that fixed screw（19）Pass through front fork spiral shell Silk hole（25）It is fixed on front fork（4）On, latch（20）Insert front fork through hole（24）Head tube through hole is inserted afterwards（23）.

A kind of 9. longitudinal fast folding vehicle frame according to claim 2, it is characterized in that girder head tube（16）Nearby fork has Two convex beaks（17）.

10. a kind of longitudinal fast folding vehicle frame according to claim 2, its feature front fork upper tube（3）Lower end is provided with boss （18）, and can be with girder head tube（16）Two flanges（17）It is in contact.

A kind of 11. longitudinal fast folding vehicle frame according to claim any one of 7-10, it is characterized in that spring leaf（27）With Boss（18）Can in rotary course respectively with the convex beak of two head tubes（17）It is in contact, realizes latch (20) and head tube（1）Insertion With extraction.