CN2321695Y - Three-folding bicycle for traveling - Google Patents

Abstract

The utility model relates to a three-folding bicycle for traveling, which is mainly composed of a folding front fork 1, a folding bicycle frame 2, a folding handlebar 3, a front wheel 6 and a rear wheel 7. The entire bicycle has three folding points which are respectively positioned at the point of the front fork, the handlebar and an upright tube in the bicycle frame. The entire bicycle is firm and reliable, and is comfortable for riding; when the utility model is folded, no tool is needed, but to push buttons of each folding mechanism by hands, so that the entire bicycle can be folded conveniently and rapidly. After is folded, the utility model has the advantages of small size, tidiness and steady placement; the utility model is convenient for going up and down stairs, parking at home and carrying on a traffic vehicle, and is an ideal tool for substituting walking during business trip and traveling.

Description

Three folding tourism folding bicycles

The utility model belongs to a kind of folding bicycle.

Existing folding bicycle is existing a variety of, have because design is complicated, the productive costs height, have since use inconvenient, can not be durable in use, maintenance difficult etc. are former thereby can not move towards practical.Patent application 942057163 once provided a kind of very practical folding bicycle, but because must serviceable tool in folding process and bring very big inconvenience to the user.

The purpose of this utility model provides a kind of folding back body little, upright neat for vast tourism fan and students in middle and primary schools exactly, must not use any instrument just can finish three folding foldings of the car load folding bicycles of travelling fast.

The purpose of this utility model is achieved in that a kind of three folding tourism folding bicycles, comprise front fork, handlebar, vehicle frame and front and back wheel, it is characterized in that being equipped with the front fork fold mechanism at front fork breeches pipe and vertical tube of front fork joint, handlebar is provided with the folded mechanism of cross break, makes handlebar energy fast folding and folds; The place is provided with fold mechanism in the frame at the vehicle frame neutral tube, and vehicle frame is parallel twin beams; Be provided with upright fixing device with the vertical tube of front fork junction upright.

Front fork fold mechanism described in the utility model technical solution is made up of three parts in left side fork shoulder, right fork shoulder and the shoulder, about a end in fork shoulder and the shoulder have a rotating shaft to be connected, about fork shoulder can rotate around the axis, about the other end of fork shoulder be respectively equipped with button hole, button is housed in button hole, with the cooresponding position of button hole one through hole is arranged also in the shoulder, stage clip is housed in the hole, lock pin is equipped with at the two ends in hole respectively, the rotation of fork shoulder about stage clip and lock pin can be controlled, the left and right sides breeches pipe of front fork respectively with about fork shoulder link together, be connected with the fork standpipe in the shoulder.

The cross break closed assembly is put described in the utility model technical solution be with handlebar be divided into folding right horizontal, a folding left side horizontal and in three parts, in two ends opening is arranged, and there is pivot pin to link to each other with left and right sides folding grip is horizontal, be with the lock handle cover in left and right sides folding grip horizontal stroke outside, lock handle cover control handlebar is the location status between horizontal three parts.

Fold mechanism is by train wheel bridge, lower plate, right-hand rotation axle sleeve in the frame described in the utility model technical solution, left side lockpin sleeve is formed, the left part of upper and lower clamping plate and right part respectively have a through hole, right part be shaft hole, left part is a button hole, the right spindle cover is clipped in the middle of the upper and lower clamping plate, link together by rotating shaft, upper and lower button is housed respectively in the button hole, in the lock pin trepanning of a left side stage clip is housed, lock pin is equipped with at the trepanning two ends respectively, and button and stage clip combined action can be controlled the mode of operation of lock pin.

Vehicle frame described in the utility model technical solution is parallel twin beams, and wherein right crossbeam links to each other with right-hand rotation axle sleeve in above-mentioned the middle folding device, and left crossbeam is connected with left lockpin sleeve, and the gap of twin beams just in time is a width of putting front-wheel into.

The utility model is because be respectively arranged with quick folding device on handlebar, front fork, vehicle frame, when so car load folds, only with hand is pressed the button of each folding device, it is folding need not use any instrument just can finish car load like a cork, and it is little to fold the back volume, upright neat, structure is firm, be convenient to park at home very much with commuter vehicle on carry.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model unfolding state figure;

Fig. 2 is the utility model folded state diagram;

Fig. 3 is the handlebar expansion drawing;

Fig. 4 is the handlebar folded state diagram;

Fig. 5 is the front fork unfolding state figure;

Fig. 6 is a front fork folding device schematic diagram;

Fig. 7 launches plan view for vehicle frame;

Fig. 8 is the vehicle frame birds-eye view;

Fig. 9 is a folding device schematic diagram in the vehicle frame frame;

The utility model is made up of folding front fork 1, folding stand 2, Foldable handlebar 3 and front-wheel 6, trailing wheel 7.

Folding front fork 1 is made up of front fork tube 13, fork standpipe 14 and front fork fold mechanism 15.Front fork fold mechanism 15 mainly by in the shoulder 25, left side fork shoulder 23, right fork shoulder 24 form.There is a circular hole in 25 central authorities in the shoulder, insert the bottom welding of fork standpipe 14 in the hole, and an end of 25 has a lockpin hole in the shoulder, and left lock pin 20 and right lock pin 21 are housed in the hole.The outside of left and right lock lock 20,21 is inclined-planes that the certain pressure angle is arranged, and stage clip 22 is housed in the middle of the left and right lock pin 20 and 21.25 the other end has shaft hole in the shoulder.About fork shoulder 23 with 24 and take in the cooresponding end of 25 lockpin holes a button hole is respectively arranged, left button 18, right button 19 are housed in the hole, left button cap 16 and right button cap 17 are housed on left button 18 and the right button 19, the other end at left and right fork shoulder 23 and 24 respectively has a shaft hole, rotating shaft 26 by in left side fork shoulder 23, the shoulder 25, the shaft hole of right fork shoulder 24, in left side fork shoulder 23, the shoulder 25, right fork shoulder 24 connects to the fork shoulder.Respectively there is a counterbore in the outside of left and right fork shoulder 23 and 24, is used for inserting weldering front fork tube 13.25 front portion is equipped with set collar 28 and fixing button 27 in shoulder, and correspondence position is equipped with set collar 29 below 25 the shaft hole in shoulder.

When folding front fork 1, the forefinger of left hand and mother refer to press simultaneously respectively left button 18 and right button 19, overcome the elastic force of spring 22, left lock pin 20 and right lock pin 21 be pressed in the shoulder in 25 the lockpin hole, at this moment left, one end of right fork shoulder 23 and 24 break away from take in 25, front-wheel 6 is owing to be subjected to lifting power to the ground of front upper place, force front fork 13 to drive a left side, right fork shoulder 23 and 24 around axle 26 when the front upper place rotates to certain angle, rotate 180 ° forward, front-wheel 6 is snapped in the left crossbeam 2a and the room between the right crossbeam 2b of vehicle frame 2, when front fork tube 13 made progress folding putting in place, fixing button 27 just inserted in set collar 29 holes, fixedly the front fork folded state is promptly finished front fork and is folded.

When launching front fork 1, fixing button 27 is extracted out in set collar 29 holes, the right hand catches vehicle frame up to mention, front fork tube 13 drives left and right fork shoulder 23 and 24 under the effect of gravity, inclined- plane pin 20 and 21 is pressed in the shoulder in 25 the lockpin hole, when 25 lockpin hole in the shoulder and left and right fork are takeed on 23 and 24 button hole contraposition, under the elastic force effect of spring 22, left and right sides lock pin 20 and 21 can insert in the button hole of left and right fork shoulder 23 and 24 automatically, thereby front fork is locked at deployed condition.

Foldable handlebar 3 by folding right horizontal 33, a folding left side horizontal 32 and in 40 form.In 40 two ends an opening is respectively arranged, a left side is the plug of transverse tube 32, right the plug of transverse tube 33 insert respectively in 40 the left and right opening by left and right pin 38 with 39 and in 40 connect into a word horizontal stroke.Left and right horizontal 32,33 front portions are with left and right lock handle cover 36 and 37 respectively, endoporus one end of lock handle cover 36 and 37 is thick, and an end is thin, and a thin end is enclosed within the shoulder 40 two ends and left and right the front portion of transverse tube, fixes horizontal one-tenth deployed condition; A thick end inside be equipped with stage clip prevent left and right lock handle cover 36 and 37 in motion process, slip away in 40 effect.The bottom of handle riser 31 is inserted in the endoporus of fork standpipe 14, and the upright fixing device of wearing or featuring stage armour and soon imperial spanner 10 will be locked upright 31 with fork standpipe 14.

During Foldable handlebar, both hands catch left and right lock handle cover 36 and 37 outwards to pull at respectively, overcome the elastic force of stage clip 34 and 35, make it with in 40 break away from, 40 both ends open directions in the handle then fold into horizontal 32,33 upright 31 both sides left and right, promptly finish horizontal folding.

Then become flexible the fast spanner 10 of driving again, will fold finishing handlebar in the upright vertical tube of front fork 14 of insertion downwards.

During unfolded handlebar 3, need only hold up transverse tube 32,33 directly left and right with hand, left and right lock handle cover 36,37 just can under the use of elastic force, be locked inwards automatically in 40 two ends, thereby will be being locked at deployed condition.Then handle riser 31 is upwards risen to suitable position again, the levelling handlebar will promptly be finished the expansion and the lifting of handlebar to upright fixing device 10 lockings.

Folding stand 2 is mainly by crossbeam 2a, 2b, and after-frame 5 and vehicle frame neutral tube 8 and fold mechanism 12 are formed.Twin beams 2a, 2b are parallel twin beams, after folding, front-wheel 6 just is placed in the middle room of two crossbeams, and right-hand rotation axle sleeve 53 welding in the end of right crossbeam 2b and the frame in the fold mechanism 12, the end of left crossbeam 2a links to each other with left lockpin sleeve 52.

Fold mechanism 12 mainly is made up of train wheel bridge 55, lower plate 56, right axle sleeve 53, right lockpin sleeve 52 in the frame.Upper and lower clamping plate 55,56 centres have a through hole, insert in the through hole and are welding neutral tube 8.After-frame 5 is being welded at neutral tube 8 rear portions.Respectively there is a through hole in one about upper and lower clamping plate 55,56, right part be shaft hole, left part is a button hole, shaft hole is a straight hole, button hole is a stepped hole.Right-hand rotation axle sleeve 53 is clipped in the middle of the upper and lower clamping plate 55,56, is linked together by rotating shaft 54, and upper and lower button 47 and 48 are housed in the button hole, and button 47 and 48 is equipped with respectively by cap 45 and 46.Inclined-plane lock 49 and 50 are equipped with in lockpin sleeve 52 holes in a left side, are equipped with stage clip 51 in the middle of the lock pin 49 and 50.When the button hole contraposition of the hole of left lockpin sleeve 52 and upper and lower clamping plate 55 and 56, lock pin 49 and 50 can insert pin half in inclined-plane in the button hole of upper and lower clamping plate 55 and 56 under the effect of elastic force, thereby crossbeam and after-frame 5 are locked at deployed condition.

During folding stand 2, right-handed thumb and forefinger are pressed upper and lower button 47 and 48 respectively simultaneously, overcome the elastic force of stage clip 51, upper and lower lock pin 49 and 50 is pressed in the trepanning of left lockpin sleeve 52 simultaneously, and at this moment left crossbeam 2a throws off fold mechanism 12 in the frame, with right crossbeam 2b under the effect of hand-power, around right spindle 54 Rotate 180s °, with left hand crossbeam and after-frame 5 are drawn close, the button that is locked is finished vehicle frame folding again.

Unclamp Fixture for tube of seat and drive spanner 9 soon, seat pipe 8 is inserted into extreme lower position downwards, it is folding promptly to finish car load.

After car load folds as shown in Figure 2.

When launching vehicle frame 2, need only catch after-frame 5 by the right hand, left hand with crossbeam to front opening, the inclined-plane pin 49,50 of the left lockpin sleeve 52 on left crossbeam 2a, during with the button hole contraposition of upper and lower clamping plate 55,56, under the tension force effect of spring 51, lock pin will snap in the button hole of upper and lower clamping plate 55,56 automatically, and at this moment crossbeam and after-frame 5 are locked at deployed condition.

Claims (5)

1, a kind of three folding tourism folding bicycles comprise front fork (1), handlebar (3), vehicle frame (2) and front and back wheel (6,7), it is characterized in that being equipped with on the front fork (1) front fork fold mechanism (15); Handlebar (3) is provided with a cross break closed assembly and puts; Vehicle frame (2) neutral tube place is provided with fold mechanism in the frame (12); The crossbeam of vehicle frame (2) is parallel twin beams, is provided with upright fixing device with the vertical tube of front fork junction upright.

2, three folding tourism folding bicycles according to claim 1, it is characterized in that said front fork fold mechanism (15) is by left side fork shoulder (23), right fork shoulder (24), (25) three parts are formed in the shoulder, a left side, right fork shoulder (23,24) with shoulder in the end of (25) have a rotating shaft (26) to be connected, a left side, right fork shoulder (23,24) can rotate around axle (26), on a left side, the other end of right fork shoulder respectively has a button hole, button (18 is housed in button hole, 19), (25) have a through hole with the cooresponding end of button hole in the shoulder, stage clip (22) is housed in the hole, the two ends in hole are respectively arranged with lock pin (20,21), stage clip and lock pin can be controlled a left side, the rotation of right fork shoulder.

3, three folding tourism folding bicycles according to claim 1, it is characterized in that the said cross break closed assembly is put is that handlebar (3) is divided into folding right horizontal (33), a folding left side horizontal (32), in (40) three parts, in (40) two ends opening is arranged, and have pivot pin (38,39) to link to each other with left and right sides folding grip is horizontal, be with lock handle cover (36,37) control handlebar in left and right sides folding grip horizontal stroke outside the location status between horizontal three parts.

4, three folding tourism folding bicycles according to claim 1, its spy is that said middle fold mechanism is by train wheel bridge (55), lower plate (56), right-hand rotation axle sleeve (53), left side lockpin sleeve (52) is formed, on, lower plate (55,56) left part and right part respectively have a through hole, right part be shaft hole, left part is a button hole, right-hand rotation axle sleeve (53) is clipped in the middle of the lower plate, link together by rotating shaft (54), be equipped with respectively in the button hole, knob down (47,48), stage clip (51) is equipped with in lockpin sleeve (52) hole in a left side, lock pin (49 is equipped with at the trepanning two ends respectively, 50), button (47,48) and stage clip (51) combined action can control lock pin (49,50) mode of operation.

5, as claimed in claim 1 three folding tourism folding bicycles, the crossbeam that it is characterized in that narrating vehicle frame (2) is the parallel twin beams that is made of left crossbeam (2a) and right crossbeam (2b), right crossbeam (2b) is connected with right-hand rotation axle sleeve (53) in above-mentioned the middle fold mechanism (12) altogether, and left crossbeam (2a) is connected with its left lockpin sleeve (52).

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