CN201343111Y

CN201343111Y - Portable type folding bicycle

Info

Publication number: CN201343111Y
Application number: CNU2008202293986U
Authority: CN
Inventors: 高瓦窑
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-11-11
Anticipated expiration: 2018-12-11

Abstract

The utility model discloses a portable type folding bicycle, belonging to the technical field of bicycle manufacturing. The folding bicycle comprises a bicycle frame, a saddle tube, a saddle standpipe, a front fork, a handlebar standpipe and a rear fork, wherein, a support device is arranged between the saddle tube and the rear fork; one end of the support device is articulated with the saddle tube; and the other end is movably connected with a connecting piece of the fork part on the rear fork. The rear fork is also connected with a rear seat support. Two sides of the tail of the rear seat support are respectively provided with rollers. A telescopic pull rod is installed on one side of the bicycle frame. The pull rod can be fitted with the rollers on the tail of the rear seat support to be used. The portable type folding bicycle can be used as shopping cart when shopping, solving the hidden trouble of unsafe parking, and can be conveniently pushed and pulled when going upstairs or downstairs and can be carried by hand at the same time. The portable type folding bicycle has the advantages of reasonable structure, convenient carrying, portable type, safe using and the like.

Description

Portable pull-type Folding Bicycle

Technical field

The utility model discloses a kind of portable pull-type folding bicycle, belongs to bicycle manufacturing technology field.

Background technology

Traditional bicycle is bigger because of volume, weight etc., engendered the bicycle of small-sized or simple structure in the market, as folding bicycle, this car is used the lifting rim brake makes the car load axle center upwards promote the integral structure of the axle center type Portable folding hand cart that is folded into ultra-small volume, put the integral structure that becomes folding bicycle in the cloth bag (case and bag) into after car load is folding, but the crossbeam mechanism of its vehicle frame adopts the side-foldable mode, and volume after folding is still bigger.

In addition, the general main vehicle frame that comprises of existing Folding Bicycle with pipe, Chain stay and a handlebar, front fork, the clamp handle that saddle standpipe that passes this vehicle frame seat of honour pipe and one are locked this saddle standpipe and this pipe, lock this clamp handle during work, load passes on the vehicle frame from the saddle standpipe, the load that this moment, clamp handle bore is bigger, and hidden danger appears in long-time use the easily.When folding, front-wheel and trailing wheel are close, put in the cloth bag (case and bag) after folding or directly are not easy the scope of go-cart with portable process, and the bicycle of this structure does not generally have preceding frame, can reduce its volume after folding like this, but not have preceding frame to bring not a trouble for again usual use.As in market or when shopping, although volume is less behind the bicycle folding, it is still inconvenient to carry bicycle after folding, and can only be to be deposited with Cycle parking this moment, deposits one's bicycle and the danger of losing is arranged.If the expert hauls walking and portable without the people behind a kind of bicycle folding, and the preceding frame of bicycle can also place the goods of some purchases, will give user's great convenience like this when shopping.

China is that bicycle uses, big producing country, and the improvement design of its structure is the problem that those skilled in the art pay close attention to always, so, the necessity of the present utility model of proposition is arranged.

Summary of the invention

At the deficiency that has the technology of carrying after Folding Bicycle folds now, the utility model provides a kind of rational in infrastructure, portable pull-type Folding Bicycle of being convenient for carrying, and the bicycle of this structure can also use as shopping cart when shopping, has solved the unsafe potential problem of bicycle parking simultaneously.

The utility model is achieved through the following technical solutions:

The utility model comprises vehicle frame, seat pipe, saddle standpipe, front fork, stem, back vent, and wherein the seat pipe is connected to one with the saddle standpipe, and the bottom end bearing formula of seat pipe is movably connected on the vehicle frame; Vehicle frame, a crossbeam mechanism, front end is connected with front fork, and vehicle frame rear end and rear fork bearings formula are articulated as one;

Stem, its lower end and front fork flexibly connect;

Also be provided with a bracing or strutting arrangement between described seat pipe and the back vent, this bracing or strutting arrangement one end is hinged with the seat pipe, and a connection piece of the bifurcation of the other end and back vent flexibly connects;

Also connect a back seat support on the described back vent, the two sides of tail of this back seat support is separately installed with roller;

Described vehicle frame one side is installed a telescopic pull bar, and folding back cooperates push-and-pull to use with the roller of back seat support afterbody.

Above-mentioned stem front side is provided with a car frame, and this car frame is connected on the handlebar by the hook on it, and use as shopping cart with the said structure combination folding back; The time spent can conveniently not taken off this car frame.

Above-mentioned bottom of frame is provided with a latch, during folded state, this latch be connected in the location of back vent fast on, prevent that trailing wheel is folding after, trailing wheel rocks when mentioning car load.

Cut with scissors in two clamping plate that extend at the front fork top above-mentioned stem bottom, one rotating connecting element wherein is installed on the clamping plate, this connecting element passes the positioning groove on stem one side conjunction, another clamping plate successively, the corresponding side with conjunction of stem also is provided with locations, to guarantee that stem cooperates with the accurate of front fork.

This above-mentioned connecting element is the radius stay of bolt and built-in screw thread, the in addition end of radius stay is articulated in wherein on the clamping plate, bolt and radius stay pass the positioning groove on stem one side conjunction and another clamping plate, can be by the more firm fixedly stem of degree of tightness of adjustable bolt.

Above-mentioned bracing or strutting arrangement is a buffer gear, and its outside is with recoil spring, and this buffer gear one end links on the seat pipe, and other end both sides are provided with radius stay, and described radius stay cooperates with the draw-in groove that the bifurcation of back vent is provided with.

Above-mentioned vehicle frame both sides are provided with guard bar, are used for guaranteeing that seat pipe and saddle standpipe are consistent with vehicle frame.

Above-mentioned seat pipe is to be chevron pointing by a long tube and a pipe to be combined as a whole, the saddle standpipe be placed in the seat pipe pipe within, and fix by a catch gear, the saddle standpipe can be adjusted the relative position with the seat pipe up and down, the long tube bottom is connected on the vehicle frame by a transverse axis, be with two bearings on this transverse axis, play during bending and rotate flexible purpose.

Above-mentioned vehicle frame rear end is hinged by a transverse axis and back vent, and transverse axis is with bearing, and bearing is arranged in the through hole that vehicle frame rear end transverse axis passes, and bearing plays and rotates purpose flexibly during bending.

When the utility model folds, back vent and trailing wheel rotate forward, latch effect by bottom of frame prevents rocking of trailing wheel, at this moment, roller on the back seat support is kiss the earth just in time, handlebar car frame after the rear overhang turnback is on the vehicle frame, after the handle of vehicle frame one side is drawn back, just can make shopping cart and use; If there is not the car frame, back vent and trailing wheel rotate forward, make the roller kiss the earth on the seat support of back, and stem is opened the connecting element of the one side certain angle that folds back, and the folding forward certain angle of seat pipe and saddle standpipe, the saddle standpipe just in time is positioned between two clamping plate on front fork top, draws back the handle of vehicle frame one side this moment, the user just pulls or is pushing away and can walk, and does not need portable or be positioned in the cloth bag (case and bag).

The utility model the time can be used as shopping cart in shopping and uses, and has solved the unsafe potential problem of bicycle parking simultaneously, simultaneously upstairs or can also carry during inconvenient push-and-pull, have rational in infrastructure, be convenient for carrying, advantage such as safe in utilization.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the folding back of the utility model first running condition scheme drawing;

Fig. 3 is the folding back of the utility model second running condition scheme drawing;

Fig. 4 is that the utility model stem is connected local enlarged diagram with front fork;

Fig. 5 is that the utility model bracing or strutting arrangement connects local enlarged diagram;

Fig. 6 is the local enlarged diagram of the latch on the utility model vehicle frame.

Wherein, 1, vehicle frame, 101, latch, 102, guard bar

2, seat pipe, 3, the saddle standpipe, 301, catch gear.

4, front fork, 401, clamping plate, 402, bolt, 403, radius stay, 404, positioning groove,

5, stem, 501, the car frame, 5011, hook, 502, locations,

6, back vent, 601, draw-in groove,

7, bracing or strutting arrangement, 701, recoil spring,

8, back seat support, 801, roller,

9, telescoping handle.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Embodiment: structure such as Fig. 1 are to shown in Figure 6, and the utility model comprises vehicle frame 1, seat pipe 2, saddle standpipe 3, front fork 4, stem 5, back vent 6, and wherein the seat pipe 2, are connected to one with saddle standpipe 3; The bottom end bearing formula of seat pipe 2 is movably connected on the vehicle frame 1; Vehicle frame 1, one crossbeam mechanism, front end is connected with front fork 4, and vehicle frame 1 rear end and back vent 6 bearing-types are articulated as one, and vehicle frame 1 both sides are provided with guard bar 102, are used for guaranteeing that seat pipe and saddle standpipe are consistent with vehicle frame.Stem 5, its lower end and front fork 4 flexibly connect; As Fig. 5, also be provided with a bracing or strutting arrangement 7 between described seat pipe 2 and the back vent 6, these bracing or strutting arrangement 7 one ends are hinged with seat pipe 2, a connection piece of the bifurcation of the other end and back vent 6 flexibly connects, bracing or strutting arrangement 7 is buffer gears, and its outside is with recoil spring 701, and this buffer gear one end links on the seat pipe, other end both sides are provided with radius stay, and described radius stay cooperates with the draw-in groove 601 that the bifurcation of back vent is provided with.Also connect a back seat support 8 on the described back vent 6, the two sides of tail of this back seat support 8 is separately installed with roller 801; Described vehicle frame one side is installed an extendable handle 9, and folding back is used with the roller 801 of back seat support 8 afterbodys.

Stem 5 front sides are provided with a car frame 501, and the hook 5011 that this car frame logical 501 is crossed on it is connected on the handlebar, and use as shopping cart with the said structure combination folding back; The time spent can conveniently not taken off this car frame.

As Fig. 5, bottom of frame is provided with a latch 101, during folded state, this latch be connected in the location of back vent fast on, prevent that trailing wheel is folding after, trailing wheel rocks when mentioning car load.

As Fig. 4, cut with scissors in two clamping plate 401 that extend at front fork 4 tops stem 5 bottoms, one rotating connecting element wherein is installed on the clamping plate, this connecting element passes the positioning groove 404 on stem one side conjunction, another clamping plate successively, the corresponding side with conjunction of stem also is provided with locations 502, to guarantee that stem cooperates with the accurate of front fork.Connecting element is the radius stay 403 of bolt 402 and built-in screw thread, the in addition end of radius stay 403 is articulated in wherein on the clamping plate, bolt 402 and radius stay 403 pass the positioning groove 404 on stem one side conjunction and another clamping plate, can be by the more firm fixedly stem of degree of tightness of adjustable bolt 402.

Seat pipe 2 is to be chevron pointing by a long tube and a pipe to be combined as a whole, the saddle standpipe be placed in the seat pipe pipe within, and it is fixing by a catch gear 301, saddle standpipe 3 can be adjusted the relative position with the seat pipe up and down, the long tube bottom is connected on the vehicle frame by a transverse axis, is with two bearings on this transverse axis.

In Fig. 2, Fig. 3, the vehicle frame rear end is hinged by a transverse axis and back vent, and transverse axis is with bearing, and bearing is arranged in the through hole that vehicle frame rear end transverse axis passes, and bearing plays and rotates purpose flexibly during bending.

When the utility model folds, back vent and trailing wheel rotate forward, latch effect by bottom of frame prevents rocking of trailing wheel, at this moment, roller on the back seat support is kiss the earth just in time, and handlebar car frame after the rear overhang turnback is on the vehicle frame, after the handle of vehicle frame one side is drawn back, just can make shopping cart and use, as shown in Figure 2; If there is not the car frame, back vent and trailing wheel rotate forward, make the roller kiss the earth on the seat support of back, and stem is opened the connecting element of the one side certain angle that folds back, and the folding forward certain angle of seat pipe and saddle standpipe, the saddle standpipe just in time is positioned between two clamping plate on front fork top, draw back the handle of vehicle frame one side this moment, the user just pulls or is pushing away and can walk, and does not need portable or be positioned in the cloth bag (case and bag), as shown in Figure 3.

The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.

Claims

1, a kind of portable pull-type folding bicycle comprises vehicle frame, seat pipe, saddle standpipe, front fork, stem, back vent, it is characterized in that:

The seat pipe is connected to one with the saddle standpipe, and the bottom end bearing formula of seat pipe is movably connected on the vehicle frame;

Vehicle frame, a crossbeam mechanism, front end is connected with front fork, and vehicle frame rear end and rear fork bearings formula are articulated as one;

Stem, its lower end and front fork flexibly connect;

2, portable pull-type folding bicycle according to claim 1, it is characterized in that: described stem front side is provided with a car frame, and this car frame is connected on the handlebar by the hook on it.

3, portable pull-type folding bicycle according to claim 1, it is characterized in that: described bottom of frame is provided with a latch, during folded state, this latch be connected in the location of back vent fast on.

4, portable pull-type folding bicycle according to claim 1, it is characterized in that: cut with scissors in two clamping plate that extend at the front fork top described stem bottom, one rotating connecting element wherein is installed on the clamping plate, this connecting element passes the positioning groove on stem one side conjunction, another clamping plate successively, the corresponding side with conjunction of stem also is provided with locations, to guarantee that stem cooperates with the accurate of front fork.

5, portable pull-type folding bicycle according to claim 4, it is characterized in that: described this connecting element is the radius stay of bolt and built-in screw thread, the in addition end of radius stay is articulated in wherein on the clamping plate, bolt and radius stay pass the positioning groove on stem one side conjunction and another clamping plate, can be by the more firm fixedly stem of degree of tightness of adjustable bolt.

6, portable pull-type folding bicycle according to claim 1, it is characterized in that: described bracing or strutting arrangement is a buffer gear, its outside is with recoil spring, this buffer gear one end links on the seat pipe, other end both sides are provided with radius stay, and described radius stay cooperates with the draw-in groove that the bifurcation of back vent is provided with.

7, portable pull-type folding bicycle according to claim 1, it is characterized in that: described vehicle frame both sides are provided with guard bar, are used for guaranteeing that seat pipe and saddle standpipe are consistent with vehicle frame.

8, portable pull-type folding bicycle according to claim 1, it is characterized in that: described seat pipe is to be chevron pointing by a long tube and a pipe to be combined as a whole, the saddle standpipe be placed in the seat pipe pipe within, and fix by a catch gear, the saddle standpipe can be adjusted the relative position with the seat pipe up and down; The long tube bottom is connected on the vehicle frame by a transverse axis, is with two bearings on this transverse axis.

9, portable pull-type folding bicycle according to claim 1 is characterized in that: the vehicle frame rear end is hinged by a transverse axis and back vent, and transverse axis is with bearing, and bearing is arranged in the through hole that vehicle frame rear end transverse axis passes.