CN204956789U - Three -section type folding bicycle - Google Patents

Abstract

The utility model discloses a three -section type folding bicycle adopts that the horizontal type is folding, the formula of indulging is folding combines, and whole car partition triplicate roughly, pipe and setting up is between the two moved away to avoid possible earthquakes and the bracket in the summit contact of back vent, is equipped with from locking -type fold -over clasp, and five -way spare and the articulated base of this five -way spare are connected regularly to one of them back yoke of back vent, and it is upward managed among the fixed connection. The folding back of bicycle, preceding, the rear wheel laminating is compact, sparingly takes up an area of the space, it is steady to stand, is convenient for deposit, and drive part can not lead to falling the wearing and tearing that reset of chain or unnecessary, tenon fourth of the twelve earthly branches welded structure, the comfortable safety of the process of riding along with folding changing.

Description

Syllogic folding bicycle

Technical field

The utility model relates to a kind of vehicle, is specifically related to a kind of syllogic folding bicycle.

Background technology

Along with the prosperity of country, the living standard of the people is improved day by day, by bike no longer in order to simple trip, becomes the trend of popular a kind of green low-carbon fashion especially, and folding bicycle is easy to carry and day by day by the favor of people.

At present, the welding of bicycle is all adopt direct welding manner, its problem to reach certain face of weld just secure, so cause tubing to become large, by the bicycle of its aluminum alloy material, because the stretching resistance of aluminum alloy is poor, welding position does not have one fixed width easily to fracture, the bicycle girder of general aluminum alloy all wants overstriking, and car outward appearance becomes very heavy, wastes material.

Bicycle rack arranges folder, vehicle frame is divided into forward and backward two sections.It can be divided into again two large classes: laterally folded method and longitudinal folding method.

Laterally folded fado is two-period form, and laterally folded formula for opening a little, outwards launches certain angle, ray principle with folder, and the end two-wheeled gap having arrived wheel is just large, and two-period form minimum length is former car half, and shortcoming is that volume is large.

Longitudinal folding method, the bicycle rear that adopts to car beam folded beneath more, and after this folding turning point is positioned at five-way mostly, time folding, chain can shorten and fall chain, the wearing and tearing of running part, brings folding inconvenience; After folding, minimum length is also former car half.The place that offsets of longitudinal fold bicycle, is all that frictionally connects mostly, easily occurs rocking, affecting safety when riding.

Utility model content

For the difficult problem that prior art exists, the utility model provides long-pending the reaching of a kind of volume after folding and minimizes, and damping is comfortable, and wheel not easily rocks, not easily fall chain time folding, stabilized structure, be easy to manufacture, reduce tolerance, self-locking folding, folding quick, the petite beautiful design of beam body.

In order to realize above object, the technical scheme that the utility model is taked is: a kind of syllogic folding bicycle, comprise front fork, back vent, Che Liang, head tube and bearing, middle pipe and pedestal, laterally folded device, middle pipe and head tube are connected car beam respectively, front fork back vent structure triangular in shape, back vent and middle pipe hinged, front 1/3 place of described car beam arranges laterally folded device; Rear 1/3 place of described car beam arranges middle pipe, and be provided with five-way piece and shock absorber part between pipe and back vent in this, described shock absorber part arranges longitudinal folding self-locking device.

Further, car body mainly welds stressed position and adopts joinery and its construction, and after tubing penetrates welded part, then two limits are welded with.

About three points of places of described car load are just after middle pipe, so the hinged turning point of trailing portion is located at herein, hinged pedestal is fixedly connected with after middle pipe, and five-way is positioned at above hinge turning point, and five-way is close to middle pipe, middle pipe hypsokinesis.

Described five-way piece extend integratedly two have the hangers of axis hole and pedestal hinged, back vent with wherein after one yoke be connected five-way piece.

Described back vent structure triangular in shape, manages in the apexes contact of back vent and arranges shock absorber part and bracket between the two.

Described shock-absorbing part is colloidal materials, and shock-absorbing part is cylinder, cuts recessed, and arrange the concavo-convex position of mutual fit between bracket in two side chamfers of side circle.

Described longitudinal folding self-locking device comprises bracket and clasp, utilizes bracket to add clasp, and clasp end is triangular in shape, and external force promotes triangle position hook end and upwards automatically opens, and is naturally replied screw pin is pinned by spring.

Welding position is firmly strengthened greatly, and car beam can use less tubing, and the radian that car beam is certain according to the wheel profile band of folding rear collection.

Compared with prior art, in order to folding volume minimizes, bicycle is set to three sections and folds, laterally folded method and longitudinal folding method combine, and hinge-point lays respectively at close to trisection car load.

The utility model is owing to being designed to integral piece by five-way piece and hangers, back vent and five-way welding, its edge opens a little for turning to, pedestal is fixed on middle pipe rear, back vent section and pedestal hinged, one five-way reduce difficulty of construction, tolerance can not be there is because of staff welding, back vent transmission is one overall, there will not be to fall chain, because of folding and drive disk assembly phenomenon of wearing and tearing, substantially increases folding convenience.

Because rear decile three part is after middle pipe, so hinge is located at herein, generally riding appearance custom cushion, to be positioned at five-way to the rear, appearance custom minimizing change is ridden in order to reach, five-way, on hinge turning point, is close to middle pipe, middle pipe hypsokinesis, move after making cushion, play and take into account folding volume and minimize and do not change and ride appearance habituation.

Because the place of offseting of back vent and vehicle body is provided with shock absorber part, damping type is better than employing ratchet catch, when bayonet type fixedly makes bicycle by rugged road surface, owing to jolting, greater impact power is produced to folder turning point, thus makes metal strain, affect the safety and comfort of riding; Bicycle has an outside gravitation when crossing curved position, thus the place of offseting easily departs from, and shock absorber part base two extends spacing, limit damping rubber disengaging to rock, make safer and more comfortable of riding, spacing in inclined-plane, damping rubber also has mutual inclined surface, can in folding reply is returned afterwards automatically; Damping rubber is screwed, and leave opening for snap close at glue and screw terminal position, damping base is provided with a clasp, hook end is triangle, beyond pinning damping rubber screw, try hard to recommend dynamic triangle position, hook end is upwards opened automatically, after screw terminal stroke has crossed triangle position, hook end is naturally replied by spring and screw pins ailhead is pinned, and plays automatic buckling effect; Shock compression thereupon during motion, back vent top section also can be squeezed, and general fixing bayonet type can all upwards arch upward, and even ruptures, and this self-locking device can not send out the problems referred to above.

This technology connects position employing joinery and its construction mainly stressed, as: folder drilled in middle one hole, hole size and crossbeam coincide, crossbeam penetrates from hole, is welded with respectively in the both sides of folder, and these become double welding position, strengthen the safety of interface, the volume of crossbeam can greatly reduce, and the appearance solving fine crossbeam is unique, to represent graceful vehicle.

Advantage of the present utility model also has:

1, rear shock-absorbing can be releived the impulsive force of rotating shaft part, reduces metal strain, can provide better traveling comfort to driver.

2, be with the spacing damping fit design in inclined-plane, reduce double swerve, outer gravitation when limiting curved, make wheel and vehicle body keep collinear, automatically restore corrected transposition feature, simplify folding, save time.

3, five-way piece and hangers adopt integral structure, simplify operation, reduce tolerance, reduce the technical risk of welding.

4, folding turning point is before five-way piece, and back vent becomes an entirety with five-way piece and turning point, and time folding, any change can not occur chain, and can not fall chain, drive disk assembly does not deposit the wearing and tearing that reset after folding, considerably increases folding convenience.

5, rear damping snap close adopts self-locking type, when replying after bicycle is folding, back vent drives pinning to touch hook triangular facet, hook automatic fastening pinning, self-lock switch handle is established upward, convenient extraction, need not bend over just can trip, people stands and holds switch, car is mentioned rear portion and naturally falls, and this self-locking device greatly reduces folding time and loaded down with trivial details.

6, adopt syllogic cross break and vertical folding to combine, axle point lays respectively at close to third-class office, makes two-wheeled compact, and folded length can be reduced to one of three parts, former car, and folding volume is minimized, and saves and takes up an area space, stands steady, is convenient to deposit.

7, the main stressed position of Che Liang etc., adopt joinery and its construction again before and after be welded with, improve interface firm, and reduce the volume of car beam, decrease weight and cost, improve rigidity, make car beam become less, more delicate more attractive in appearance.

8, this five-way body is on hinge turning point, is close to middle pipe, and middle pipe hypsokinesis a bit, moves after making cushion, plays not change and ride appearance habituation.

9, car sill bolt radian, time folding, wheel is better collected, and volume is less, and radian makes bicycle profile unique.

Accompanying drawing explanation

Fig. 1 is the structural representation of syllogic folding bicycle.

Fig. 2 is the exploded view of vehicle frame (removing wheel, seat).

Fig. 3 is shock absorption device figure.

Fig. 4 is bicycle folded state diagram.

Detailed description of the invention

As depicted in figs. 1 and 2, the part such as syllogic folding bicycle, screw pin 9, damping rubber oblique recess 10, shock absorber part 11 spacing 8 by laterally folded device 1, car beam 2, folding shaft 3, vertical folding pedestal 4, hinge 5, five-way piece 6, bracket 7, bracket, damping rubber slot 12, clasp 13, screw shaft 14, spring 15, middle pipe 16, head tube, mortise 17, snap close 18, bowl group bucket 19, front fork 20, back vent 21, hangers 22, reinforcing chip 23, front and back wheel forms.

Bicycle rack adopts Tenon to add welding manner at main stressed welding position and reinforces, laterally folded device is positioned at 1/3 place before the pact of car load, folder is current version, have folding shaft 3, snap close 18 etc., folder 1 digs out a mortise 17, and car beam 2 size is coincide, after car beam 2 tenon enters folder, both sides are welded with, and with mouth of cooling down, prevent heat from splashing and rise, can rise and improve safety and reduce car beam effect; Bowl group bucket and car beam also adopt the same method to weld, or adopt one without weldment (craneway and bowl group bucket are integrated casting), or reinforce with reinforcing chip, reach the tiny effect of car beam; The radian that car sill bolt is certain, for compact with the cooperation of wheel arc position, better collects wheel.

Hind axle is set up in the back vent 21 of triangle structure, back vent 21 wherein after one yoke be connected in hind axle, after another of back vent 21, yoke to be permanently connected five-way piece 6 by welding manner, or both are integrally formed, can ensure to connect precision.

Middle pipe 16 lower end is fixed on pedestal 4.Five-way piece 6 be one integrally formed, its main body is cylinder, and five-way piece main body extends hangers 22, and hangers offers through hole respectively, and five-way piece 6 is hinged to one with pedestal 4 by hinge 5; In order to folding volume minimizes, after the pact of car load, 1/3 place is middle pipe, and folding pivot point lays respectively at after middle pipe 16, five-way piece hangers end, and five-way is on turning point, and middle tube angulation hypsokinesis, moves after making cushion, reaches to ride appearance custom as far as possible change is little; Back vent and five-way piece are a fixed body, and when which prevent folding, drive disk assembly changes and falls chain and wearing and tearing.

Back vent 21 and middle pipe 2 place of offseting adopt shock absorber part 11 and bracket 7 to combine, to reduce the impact to hinge position.As shown in Figure 3, shock absorber part 11 is the special damping rubber of cylinder colloidal materials, and oblique recess 10 is offered on the both sides of its side circle.The bracket spacing 8 of band gradient is extended on bracket 7 both sides, shock absorber part 11 docks fit with bracket 7 by concavo-convex position, effect is restriction back vent double swerve, and when bicycle is opened, gradient concave-convex design can repair back vent center line and vehicle body keeps collinear, folding feature efficiently automatically.

Longitudinal folding self-locking device is made up of bracket 7, clasp 13, spring 15 and screw shaft 14.Longitudinal folding locking means, use bracket 7 for support, add a clasp 13, the hook end of clasp 13 is triangular in shape, it is turning point that through hole is offered in below, with spring 15, screw shaft 14 plays swing and rebound action, screw pin 9 fixes shock-absorbing part 11, offer slot 12 at shock-absorbing part 11 and drop out screw pins ailhead, when back vent pin ailhead touches the triangle position of clasp 13, contact surface slides, clasp 13 upwards lifts naturally, resilience fastens pin again, play self-locking action, clasp is provided with handle, handle upwards, hold middle pipe 16 and handle lifts car, clasp 13 is opened naturally, back vent and wheel come off naturally, play to fold and act on quickly and easily.

Head tube connects car beam 2, and front wheel spindle is erected at front fork 20, and front fork is connected with car beam 2.

When syllogic folding bicycle uses, by rolling over before front fork cross break and back vent, form syllogic foldable structure, mutually compact, folding volume minimizes, and Che Liang etc. adopt joinery and its construction, makes the more petite more profile of beam body graceful.

Claims (5)

1. a syllogic folding bicycle, comprise front fork, back vent, Che Liang, head tube and bearing, middle pipe and pedestal, laterally folded device, middle pipe and head tube are connected car beam respectively, front fork back vent structure triangular in shape, back vent and middle pipe hinged, it is characterized in that: front 1/3 place of described car beam arranges laterally folded device;

Rear 1/3 place of described car beam arranges middle pipe, and be provided with five-way piece and shock absorber part between pipe and back vent in this, described shock absorber part arranges longitudinal folding self-locking device.

2. syllogic foldable bicycle frame according to claim 1, is characterized in that, described five-way piece extend integratedly two have the hangers of axis hole and pedestal hinged, back vent and back vent have wherein after one yoke be connected five-way piece.

3. syllogic foldable bicycle frame according to claim 1, is characterized in that, manages and arrange shock absorber part and bracket between the two in the apexes contact of described back vent.

4. syllogic foldable bicycle frame according to claim 3, is characterized in that, described shock absorber part is colloidal materials, and shock absorber part is cylinder, cuts recessed, and arrange the concavo-convex position of mutual fit between bracket in two side chamfers of side circle.

5. syllogic foldable bicycle frame according to claim 1, it is characterized in that, described longitudinal folding self-locking device comprises bracket and clasp, bracket is utilized to add clasp, clasp end is triangular in shape, external force promotes triangle position hook end and upwards automatically opens, and is naturally replied screw pin is pinned by spring.