CN104149906A

CN104149906A - Bicycle frame capable of being longitudinally and rapidly folded

Info

Publication number: CN104149906A
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: 2014-11-19
Anticipated expiration: 2034-08-05
Also published as: CN104149906B; WO2016019639A1

Abstract

The invention discloses a folding bicycle. A bicycle frame of the folding bicycle can be divided into a front fork folding unit and a rear fork folding unit, longitudinal folding serves as the folding mode, and according to the operation mode, a head pipe and a sitting rod are twisted or plugged. According to the novel bicycle frame, a front fork and the head pipe are folded into a whole, a rear fork is folded and is stored into a whole with the sitting rod, and the four parts of the bicycle frame are folded through the two folding units. The problem that an existing folding bicycle is insufficient in rigidity and durability is solved, and the folding bicycle has the advantages of being simple, reliable, smooth in line, easy to operate, elegant in operation, small in folded size and fast in folding.

Description

A kind of longitudinal Quickfolding bicycle frame

Technical field

The present invention relates to bicycle, be specifically related to a kind of longitudinally bicycle of fast folding.

Background technology

In recent years, cycle racing spreads and comes in the compatriots that day by day pay attention to quality of life, and what accompany with it is popularizing of automobile and extensively spreading out of public transport, and because of these two factors, portable folding bicycle has also obtained accepting widely and using.Common folding bicycle folding mode is generally laterally folded on the market, by the box-type folding being controlled at handle on crossbeam and other position, buckle to realize the folding of vehicle frame and launch, this mode has the advantages such as operation is simple, with low cost, but because its folding position is positioned at crossbeam and head tube root, its rigidity and durability are unsatisfactory.Outside common laterally folded bicycle, there is the folding bicycle of part higher gears to adopt longitudinal folding design, and obtain thus good safety and durability, and but these longitudinal folding vehicle frames still have complex structure, complex operation, volume after folding is bigger than normal and fall the shortcomings such as chain.

Summary of the invention

The present invention aims to provide a kind of longitudinal fold bicycle, and it has fast folding, and simple and reliable for structure, good looking appearance, exempts from the features such as lever operated.

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

The seat pipe of described vehicle frame main beam is provided with through hole, can make back vent connecting element stretch into.

Described seatpost lower end is provided with non-circular irregular through hole, can clamp back vent connecting element.

Yu Ci lower end, described head tube lower end pipe axis parallel is conllinear not, and the head tube that end user inserts on front fork pipe and front fork by rotation realizes being locked of front fork.

Described front fork is equipped with spring and stops bolt, spring stops bolt and comprises the parts such as check screw, spring leaf and latch, spring stops bolt and is fixed on front fork root one end by check screw, and latch is pushed down in the through hole of front fork root one end in the compressing of spring leaf, fixedly on head tube, front fork, manages and front fork thus.

On described front fork, on pipe, there is boss, match with two protruding beaks on vehicle frame main beam, when end user rotates head tube, fixedly front fork in a certain position and the latch that makes described spring stop bolt extract, it is loosening that same direction is further rotated the fixed relationship that can make between head tube and front fork, completes extracting of head tube and folding of front fork.

The latch that described spring stops bolt can contact with head tube after inserting front fork, head tube is inserted after front fork by the relatively fixing latch that makes its through hole and spring stop bolt under described protruding beak fixing of pipe on rotation and front fork and is overlapped, pressure at spring is pushed down into head tube through hole thus, then fixedly 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, end user can control respectively head tube and seatpost by both hands, fold simultaneously and launch, have simple and efficient to handle, simple and reliable for structure, beautiful design is smooth, can effectively improve vehicle frame rigidity, exempts and bends over to carry out the loaded down with trivial details of a plurality of positions folding fastener operation.

Accompanying drawing explanation

Fig. 1 is overlooking of vehicle frame integral body and lateral plan;

Fig. 2 is overlooking and lateral plan under vehicle frame folding state;

Fig. 3 is the exploded drawings of vehicle frame;

Fig. 4 is back vent folding unit detail view 1;

Fig. 5 is back vent folding unit detail view 2;

Fig. 6 is front fork folding unit detail view 1;

Fig. 7 is front fork folding unit detail view 2;

Fig. 8 is front fork part exploded view.

The specific embodiment

Below in conjunction with accompanying drawing, a kind of longitudinal Quickfolding bicycle of the present invention is described in further detail.

In Figure of description, this longitudinal Quickfolding bicycle omitted a bowl group, standing, parts such as horizontal stroke, wheels, seat bag, brake system and drive systems, these parts can adopt prior art, do not belong to content category of the present invention, those skilled in the art can use existing parts according to actual needs, do not affect technique effect of the present invention, be not repeated herein.

This longitudinally Quickfolding bicycle comprise on head tube 1, pipe bundle clip 2, front fork, manage 3, front fork 4, spring stop the parts such as bolt 5, vehicle frame main beam 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 folding unit and front fork folding unit generally, and the control stalk of back vent folding unit is seatpost 7, and the control stalk of front fork folding unit is head tube 1.

Described back vent folding unit component part has girder seat pipe 15, seatpost 7, seatpost folder 8, back vent 9, vehicle frame main beam 6 to be connected with hinge 11 with 9 of back vents.

Further, girder seat pipe 15 all has through hole with seatpost 7, and seatpost through hole 12 is non-circular irregular, and can overlap with girder seat pipe through-hole 13 under the control of seatpost folder 8.

Further, back vent 9 and 15 of girder seat pipes have an adjustable screw 14, and the umbrella head of this screw can stretch in girder seat pipe through-hole 13 under the control of hinge 11.

Further, adjustable screw 14 stretches into after girder seat pipe through-hole 13, stretch in turn seatpost through hole 12, end user further compresses seatpost subsequently and obtains so that the umbrella head of adjustable screw 14 is fixed in seatpost inwall, operation link, can make seatpost, girder seat pipe, back vent three realize fixing thus.

Further, end user, when implementing to unclamp attended operation, only need to stir seatpost 7, makes adjustable screw 14 extract successively seatpost through hole 12 and girder seat pipe through-hole 13 out, subsequently collapsible back vent 7 with extract seatpost 7.

Corresponding, front fork folding unit comprise on head tube 1, clamp folder 2, front fork, manage 3, front fork 4, spring stop the parts such as bolt 5 and front fork hinge 10 and form.

Further, on front fork 4 and front fork, manage 3 and be connected and fixed by hinge 10, then to sit pipe clamp 2, be fixed in girder head tube 16.

Further, head tube 1 is comprised of three sections of above pipes, and pipe 22 and inferior lower end pipe 21 insert respectively on front fork heel apertures 26 and front fork and manage in 3 bottom.

Further, it is not identical that the external diameter of the pipe bottom 22 in head tube 1 is slightly less than time axle center of lower end pipe 21, two pipes, and the external diameter of the two is tangent.

Further, manage the axis parallel of 3 inwall axle center and front fork heel apertures 26 but do not overlap on front fork, the axle center of front fork heel apertures 26 is slightly offset to back vent direction compared with the inwall axle center of managing 3 on front fork.

Further, the pipe bottom of head tube 1 can insert front fork heel apertures 26 after managing 3 inwalls on front fork, and utilizes its side-play amount, by rotation, reach fixedly on front fork, manage 3, front fork 4 and the object of himself.

Further, by front fork screw hole 25, being fixed on spring on front fork stops bolt 5 and is comprised of check screw 19, spring leaf 20, latch 21.

Further, latch 21 inserts front fork through hole 24 on the pressure of spring leaf 20, contact with head tube 1 subsequently, the head tube bottom appropriate location of pipe 23 is provided with through hole 23, rotation head tube 1 with on fixedly front fork 4, front fork, manage 3 and himself action in, head tube through hole 23 overlaps with the latch 21 that spring stops bolt 5, and latch 21 is insert head pipe through-hole 23 under the pressure of spring leaf 20, reaches and prevents that head tube 1 from continuing rotation and improper object of extracting.

Because the folding operation of head tube folding unit is mainly completed by the rotation of head tube, so manage 3 hinge pipe on front fork, be provided with and stop into projection 18, the lower end of the girder head tube 16 of the vehicle frame main beam 6 of answering is in contrast provided with two protruding beaks 17.

Further, in the operation of fixing front fork folding unit, head tube 1 insert on front fork, manage 3 with front fork heel apertures 26, and drive on front fork, manage 3 and front fork 4 take girder head tube 16 axle center and be rotated as axle, when rotating to a certain position, on front fork, manage 3 stop into projection 18 inconsistent with a protruding beak in girder head tube 16, on front fork, manage 3 and front fork 4 therefore fix, head tube is able to independent rotation, with stop-pass over-rotation, reaches and on fixedly head tube 1, front fork, manages 3 and the object of front fork.

Further, when end user will fold the operation of front fork, only need be to opposite spin head tube 1, fixing head tube 1 drives on front fork manages 3, when front fork 4 rotates to a certain position, on front fork, manage on 3 stop into projection 18 with another protruding beak inconsistent, on front fork, manage 3 and front fork 4 by the rotation of only cannot following up, be fixed on spring leaf 21 upper ends that spring on front fork 4 stops bolt 5 contacts with the protruding beak 17 of the other end simultaneously, and upspring under the effect of this protruding beak 17, drive latch 20 to detach head tube through hole 23, thus, under acting in two factors, head tube is continued rotation, loosening head tube 1, on front fork, manage 3, fixing between front fork 4, and extract, then front fork 4 be take front fork hinge 10 and is carried out jackknife action as axle.

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

When end user wants to launch vehicle frame, only need two hands divide the upper end of holding head tube 1 and seatpost 7, insert respectively on front fork, manage 3 and girder seat pipe 15 in, by the above principle realize fast speed fixedly vehicle frame move.

Claims

1. a folding stand, comprises back vent folding unit and front fork folding unit, it is characterized in that the folding of front fork and back vent folding unit triggered by head tube (1) and seatpost (7).

2., described in requiring according to right 1, back vent folding unit comprises the parts such as girder seat pipe (15), seatpost (7), back vent (9), back vent hinge (11).

3. described in requiring according to right 2, girder seat pipe (15) is provided with through hole (13), and seatpost (7) thus through hole (13) is controlled back vent (9).

4., described in requiring according to right 2, through hole (12) is arranged at seatpost bottom, and contacts with back vent (9).

5., described in requiring according to right 2, back vent (9) front portion is provided with adjustable screw (14) or other can fixed parts.

6., described in requiring according to right 2-5, back vent (9) screw (14) can be realized with seatpost (7) and being connected through seat pipe (15) through hole (13).

7., described in requiring according to right 1, front fork folding unit comprises that on head tube (1), pipe bundle clip (2), girder head tube (16), front fork, pipe (3), front fork (4), spring stop the parts such as bolt (5), front fork hinge (10).

8. described in requiring according to right 7, front fork (4) is connected with pipe (3) on front fork by front fork hinge (10), and on front fork, pipe (3) is fixed in girder head tube (16) by pipe bundle clip (2).

9. described in requiring according to right 7, head tube is comprised of the different a plurality of pipes of external diameter, and its lower end pipe (22) and inferior lower end pipe (21) can insert pipe (3) and front fork root perforate (26) on front fork.

10. described in requiring according to right 9, head tube (1) lower end pipe (22) external diameter is slightly less than time lower end pipe (21), two pipe axis parallels but conllinear not.

11. according to described in right 10 requirements, and head tube (1) lower end pipe (22) is tangent with time lower end pipe (21) external diameter.

12. according to described in right 8-11 requirement, and head tube (1) realizes fixing aforementioned three parts by rotation manage (3) and front fork root perforate (26) on insertion front fork after.

13. according to described in right 7 requirements, and spring stops bolt (5) and is comprised of parts such as check screw (19), spring leaf (21), latches (20).

14. spring stops bolt (5), by front fork screw hole (25), be fixed on front fork (4) above, the latch (20) that spring stops bolt (5) inserts the rear insert head pipe through-hole (23) of front fork through hole (24).

15. according to described in right 6 requirements, and girder head tube (16) nearby fork has two protruding beaks (17).

16. according to described in right 6,10 requirements, and on front fork, pipe (3) lower end is provided with boss (), and can contact with two flanges (17) of girder head tube (16).

17. according to described in right 12-16 requirement, and the spring leaf (21) that front fork stops bolt (5) can contact with the protruding beak of head tube (17) in rotary course, realizes extraction and the insertion of latch

Described in requiring according to right 12-17, on front fork, pipe (3) boss (18) contacts with girder head tube (16) two protruding beaks (17) by rotation, realize the fixing of pipe (3) on front fork (4) and front fork, and at front fork, stop under the cooperation of bolt (5) and realize and with rotation, extract head tube (1).

18. front fork folding units and the detachable use of back vent folding unit, also should belong to the protection domain of this patent after fractionation.