CN201209011Y - Shock-absorbing foldable bicycle - Google Patents

Abstract

The utility model relates to a damping folding bicycle. A damping hinge shaft connected with a front frame and a rear frame is arranged at the lower end or on the rear side surface of a middle tube of the front frame, a driving middle shaft is mounted on the rear frame, and a shock absorber is mounted between the front frame and the rear frame. Compared with the prior art, the utility model can decrease the folded size, can effectively improve the characteristics of riding, and enables the riding to be stable, quick and labor-saving.

Description

The damping folding bicycle

Technical field

The utility model relates to technical field of bicycles, especially a kind of folding bicycle that is provided with the rear wheel shock-absorbing device.

Background technology

The folded bicycle at initial stage does not all have damping, because long saddle pipe will be inserted into ground when folding, so the middle beam barrel of folded bicycle all is the front that is welded in pipe in the vehicle frame, and Guan Yuzhong beam barrel welding during chain stay strides across behind the vehicle frame.The folding bicycle that is provided with the rear wheel shock-absorbing device of Chu Xianing was to improve to form on original basis afterwards, and its rear wheel shock-absorbing hinge is to be contained in after the middle beam barrel, promptly be arranged between middle beam barrel and the hind axle, and middle beam barrel is captiveed joint with middle pipe.The damping hinge of the bicycle of this structure is between axis and rear axle, and damping spring need have with a certain distance from the damping hinge, therefore wheel base increases to some extent than before improving, and the volume after making the increase of folded bicycle weight thus and making folding strengthens, and manufacturing cost has also improved.The more important thing is, because axis, drive sprocket are independent of outside the vehicle frame of back, when riding, chain pull periodically fluctuation can cause the back vehicle frame therefore to swing up and down around the damping hinge, this part energy that swings up and down the merit that on the one hand makes by bike to be done will be done to absorb in damping spring and release, this frequent transitions can cause the loss of energy, require great effort by bike, on the other hand, trailing wheel swings up and down with respect to this of front vehicle frame, in fact being equivalent to the bicyclist becomes slope, vertical tremor top to shake, produced artificial slope, top, the characteristic of riding is degenerated.

Summary of the invention

Problem to be solved in the utility model provides little and steady, the comfortable labour-saving damping folding bicycle of riding of a kind of folding volume.

This addresses the above problem, this damping folding bicycle includes front vehicle frame, back vehicle frame and is connected described front vehicle frame and the back bumper between the vehicle frame, the damping hinge that described front vehicle frame is connected with the back vehicle frame is located at the lower end or the trailing flank of pipe in the front vehicle frame, and described driving axis is contained on the vehicle frame of back.

Owing to adopted such scheme, the utility model compared with prior art has following beneficial effect:

1, is located at the back vehicle frame owing to be used for installing the beam barrel that drives axis, promptly be all among the stress system with axis bonded assembly drive sprocket with the back vehicle frame, because chain can not cause the back vehicle frame to swing around front vehicle frame to the pulling force of trailing wheel driven sprocket when riding, thereby avoided the merit of partly the riding conversion of frequently in rear shock absorber, coming in and going out, improve powerdriven efficient, make and ride easilyer, also avoided bicyclist's slope, vertical tremor top to shake simultaneously, make ride more steady.

2, front vehicle frame and the back damping hinge that is connected of vehicle frame are located at the lower end or the trailing flank of pipe in the front vehicle frame, this structure that middle beam barrel is located on the vehicle frame of back is compared with the prior art of damping hinge between axis and rear axle, wheel base can obtain effectively to dwindle, can make folded bicycle weight reduce the volume-diminished after the folding thus.

Description of drawings:

Fig. 1 is existing damping folding bicycle scheme drawing;

Fig. 2 is the utility model embodiment one scheme drawing;

Fig. 3 is the utility model embodiment two scheme drawings;

Fig. 4 is the utility model embodiment three scheme drawings;

Fig. 5 is the utility model embodiment four scheme drawings;

Fig. 6 is the utility model embodiment five scheme drawings;

Fig. 7 is the utility model embodiment six scheme drawings.

The specific embodiment

The utility model is described in further detail below in conjunction with specific embodiment:

Damping folding bicycle as shown in Figure 2, front vehicle frame 1 is connected by damping hinge 2 with back vehicle frame 5,

Damping hinge 2 is located at the lower end of pipe in the front vehicle frame, drives axis 3 and is installed on the back vehicle frame 5 between damping hinge 2 and the hind axle 6, between front vehicle frame 1 and back vehicle frame 5 bumper 9 is housed.When riding, the driven sprocket that driving axis 3 drives on the trailing wheels 7 by drive sprocket 4, chain 8 because drive sprocket 4 and driven sprocket all are contained on the vehicle frame 5 of back, can not cause back vehicle frame 5 not shake around front vehicle frame 1 so chain 8 draws driven sprockets.And the prior art of Fig. 1, drive the preceding bottom that axis 31 is provided in a side of pipe in the front vehicle frame 11, front vehicle frame 11 is located between axis 31 and the hind axle 61 with the damping hinge 21 that back vehicle frame 51 is connected, middle pipe then presss from both sides between axis 31 and damping hinge 21, because drive sprocket 41 and driven sprocket are contained in respectively on front vehicle frame 11 and the back vehicle frame 51, so chain 81 traction driven sprockets can cause back vehicle frame 51 to shake around front vehicle frame 11.

Damping folding bicycle shown in Figure 3 is compared with example shown in Figure 2, and its difference is that its damping hinge 23 is located at the trailing flank of pipe lower end in the front vehicle frame 13.

Damping folding bicycle shown in Figure 4 is compared with example shown in Figure 3, and its key distinction is to be contained in bumper 94 between front vehicle frame 14 and the back vehicle frame 54 for being horizontally disposed with.

Damping folding bicycle shown in Figure 5, the key distinction of comparing with the foregoing description are that the structure of front vehicle frame 15 is different.

Damping folding bicycle shown in Figure 6, the key distinction of comparing with the foregoing description are that the structure of front vehicle frame 16 is different.

Damping folding bicycle shown in Figure 7, the key distinction of comparing with the foregoing description are that the structure of front vehicle frame 17 is different.

Claims (1)

1. [claim 1] a kind of damping folding bicycle, include the driving axis, front vehicle frame, back vehicle frame and be connected described front vehicle frame and the back bumper between the vehicle frame, it is characterized in that: the damping hinge that described front vehicle frame is connected with the back vehicle frame is located at the lower end or the trailing flank of pipe in the front vehicle frame, and described driving axis is contained on the vehicle frame of back.

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