CN205440708U - A front wheel positioning structure of a folding bicycle and the folding bicycle - Google Patents

Abstract

The utility model provides a front wheel positioning structure of a folding bicycle and the folding bicycle. The front wheel positioning structure of the folding bicycle comprises a first positioning mechanism and a second positioning mechanism, wherein the first positioning mechanism is connected to a retractable handlebar stem, and the second positioning mechanism is connected to a bicycle frame, so that when the first positioning mechanism cooperates with the second positioning mechanism, the front wheel cannot rotate left and right, thus avoiding left and right swinging during pushing, and keeping the front wheel in the same direction as the rear wheel, making pushing easier.

Description

A front wheel positioning structure of a folding bicycle and the folding bicycle

technical field

The utility model relates to a front wheel positioning structure of a folding bicycle and the folding bicycle.

Background technique

Folding bicycles or folding electric vehicles are used by more and more people because they are convenient to store after they are folded. But existing folding bicycle or folding electric vehicle, after it is folded, because the front wheel is not fixed, so can swing from side to side in the process of carrying out, can not keep consistent with the direction of rear wheel, causes moving inconvenience.

Utility model content

The utility model provides a front wheel positioning mechanism for folding bikes in order to overcome the above-mentioned defects in the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A front wheel positioning structure of a folding bike, comprising a first positioning mechanism and a second positioning mechanism, the first positioning mechanism is connected with a telescopic and movable handlebar riser, and the second positioning mechanism is connected with a vehicle frame, so that When the first positioning mechanism cooperates with the second positioning mechanism, the front wheel cannot rotate left and right.

The handlebar riser is telescopically movable, and it includes a first telescopic rod connected to the handlebar, and a second telescopic rod connected to the steering shaft, the first telescopic rod is socketed with the second telescopic rod , the handlebar standpipe can use a locking or clamping mechanism in the prior art (such as a quick release clip, etc.) to fix the first telescopic rod and the second telescopic rod. Further, the first positioning mechanism includes a positioning pin provided on the first telescopic rod, the second positioning mechanism includes a positioning slot provided on the vehicle frame, and the positioning pin and the positioning slot It is adapted so that when the handlebar standpipe shrinks, the positioning pin is compatible with the positioning groove, so that the front wheel cannot rotate left and right.

By setting the cooperation between the positioning pin and the positioning groove, when the handlebar riser contracts, the first telescopic rod moves downward relative to the second telescopic rod, and the positioning pin also moves following the first telescopic rod, When reaching the maximum contraction position, the positioning pin is stuck in the positioning groove to fix the handlebar standpipe so that the front wheel cannot rotate left and right.

As an embodiment, the second telescopic rod is sleeved in the first telescopic rod.

As another embodiment, the first telescopic rod is sleeved in the second telescopic rod, the second telescopic rod is provided with a limit hole, and the positioning pin protrudes from the limit hole, so that the positioning The pin can move along the limiting hole so as to be locked in the positioning groove. Specifically, the limiting hole is a strip-shaped limiting hole, the positioning groove is concave, and the positioning pin moves along the limiting hole. When the handlebar riser shrinks, the positioning pin moves along the The limiting hole moves to the bottom of the limiting hole, enters the positioning groove from the opening direction of the upper end of the "concave" positioning groove, and is stuck in the positioning groove to fix the first telescopic rod.

As another embodiment, the first telescopic rod is sleeved in the second telescopic rod, and the second telescopic rod is provided with a through hole corresponding to the position of the positioning slot, and the first positioning mechanism also Including an elastic mechanism (such as a spring), the elastic mechanism is located in the first telescopic rod, the elastic mechanism is connected with the positioning pin, so that the positioning pin pops out from the through hole to be inserted into the positioning groove Inside, the second positioning mechanism also includes a pressing mechanism for pushing the positioning pin back into the first telescopic rod, through the cooperation of the elastic mechanism and the pressing mechanism, the positioning pin can be realized insertion and extraction. When the handlebar standpipe shrinks, the first telescopic rod shrinks into the second telescopic rod, and after the positioning pin is aligned with the through hole, the elastic mechanism moves the positioning pin from the through hole The hole pops out for insertion into the positioning slot. When the handlebar standpipe needs to be deployed, the positioning pin is only required to be pushed back into the first telescopic rod by the pressing mechanism, and the first telescopic rod can be moved to unfold the handlebar standpipe.

Further, the pressing mechanism includes a push rod arranged in the positioning groove and a button arranged outside the vehicle frame, and the push rod is connected with the button. When in use, the push rod is pushed to move by pressing the button, and the positioning pin inserted into the positioning slot is pushed accordingly.

In order to enable the positioning pin to be pulled out quickly, further, the end of the positioning pin inserted into the positioning groove is bullet-shaped, preferably with a smooth surface, and the bullet-shaped structure can effectively reduce the time of pulling out. The friction force experienced by the positioning pin.

Further, the first telescopic rod or the second telescopic rod is provided with a positioning indicator line, so as to indicate that the positioning pin is aligned with the positioning pin when the telescopic rod is contracted.

Another object of the present utility model is to provide a folding bike, which includes a frame, a handlebar riser, a front fork, a front wheel and a rear wheel, and the frame is provided with a folding mechanism for folding the frame , so that the front wheels and the rear wheels are juxtaposed with each other, the folding car is provided with the front wheel positioning structure of the folding car, and the handlebar standpipe is also provided with the first telescopic rod and the second telescopic rod for fixing the fixing mechanism.

The folding mechanism can adopt the structure of a folding bicycle or a folding electric vehicle in the prior art. The frame includes a front frame and a rear frame, and the folding mechanism includes a first pivot end arranged on the front frame, a second pivot end arranged on the rear frame, and the The pivot connecting the first pivot end and the second pivot end, and the buckle for locking the front frame and the rear frame, the first pivot end is connected to the second pivot through the pivot The connecting ends are pivotally connected, and when folded, the front frame and the rear frame rotate and fold around the pivot, so that the front wheels and the rear wheels are juxtaposed.

The handlebar standpipe can use a locking or clamping mechanism in the prior art (such as a quick release clip, etc.) to fix the first telescopic rod and the second telescopic rod.

Further, the front fork is connected to one side of the front wheel, so that when the front wheel and the rear wheel are juxtaposed to each other, the rear wheel is located on the opposite side of the connection between the front wheel and the front fork. Such a design makes the front and rear wheels closer together, reduces the volume of the electric vehicle after folding, and saves more space.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model is provided with a first positioning mechanism and a second positioning mechanism between the handlebar standpipe and the vehicle frame, through the cooperation of the first positioning mechanism and the second positioning mechanism, the front wheel cannot be rotated left and right, avoiding the In the process of moving, it will swing from side to side, which is consistent with the direction of the rear wheels, which is easy to push.

Description of drawings

Fig. 1 is a schematic diagram of the front wheel positioning structure of the folding bicycle described in embodiment 1.

Fig. 2 is a schematic diagram of the front wheel positioning structure of the folding bicycle described in Embodiment 2.

Fig. 3 is a schematic cross-sectional view of the positioning pin and the positioning groove.

Fig. 4 is a schematic diagram of the front wheel positioning structure of the folding bicycle described in embodiment 3.

Fig. 5 is a schematic diagram of the front wheel part of the folding bicycle described in Embodiment 4.

detailed description

The utility model will be further described below in conjunction with specific embodiments. Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than actual drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present utility model, some parts of the accompanying drawings will be omitted , enlargement or reduction, do not represent the size of the actual item; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

Example 1

As shown in FIG. 1 , a front wheel positioning structure of a folding bicycle includes a first positioning mechanism and a second positioning mechanism, the first positioning mechanism is connected with the handlebar riser 2 , and the second positioning mechanism is connected with the vehicle frame 1 .

The handlebar standpipe 2 is telescopically movable, and the handlebar standpipe 2 includes a first telescopic rod 21 and a second telescopic rod 22. The first telescopic rod 21 is connected with the handlebar (shown omitted in the figure), and the second telescopic rod 22 is connected with the handlebar. The steering shaft 4 in the folding car is connected, and the second telescopic rod 22 is sleeved in the first telescopic rod 21, so that the first telescopic rod 21 can move up and down relative to the second telescopic rod 22. When the telescopic rod shrinks, the second telescopic rod The rod 22 is accommodated in the first telescopic rod 21 . The steering bearing 3 in the folding bike is connected with its vehicle frame 1 and the steering shaft 4 respectively, and the steering shaft 4 is connected with the front fork 9 .

The first positioning mechanism includes a positioning pin 5 arranged on the first telescopic rod 21, and the second positioning mechanism includes a positioning groove 6 arranged on the vehicle frame 1. The positioning pin 5 is compatible with the positioning groove 6, and the positioning groove is concave. (As shown in Figure 3), when the handlebar riser shrinks, the first telescopic rod 21 moves downward relative to the second telescopic rod 22, and the positioning pin 5 also moves with the first telescopic rod 21, from the "concave" The opening direction of the upper end of the positioning groove enters, and when reaching the maximum shrinkage position, the positioning pin 5 is stuck in the positioning groove 6 to fix the handlebar standpipe 2, and then fix the front wheel so that the front wheel can not rotate left and right.

Example 2

As shown in Figure 2, the difference from Embodiment 1 is that the first telescopic rod 21 is sleeved in the second telescopic rod 22, and the second telescopic rod 22 is provided with a limit hole 221, and the positioning pin 5 extends from the limit hole 221. out, so that the positioning pin 5 can move along the limiting hole 221 to be fixed in the positioning groove 6, and the positioning groove 6 is also concave (as shown in FIG. 3 ). When the handlebar standpipe 2 shrinks, the positioning pin 5 moves along the limiting hole 221 to the bottom of the limiting hole 221, enters the positioning groove from the opening direction of the upper end of the "concave" positioning groove, and is stuck in the positioning groove 6 , to fix the first telescopic rod 21, so that the handlebar riser 2 is fixed, and the other components and connections are the same as in Embodiment 1.

Example 3

As shown in Figure 4, different from Embodiment 2, the first telescopic rod 21 is sleeved in the second telescopic rod 22, and the second telescopic rod 22 is provided with a through hole 222 corresponding to the position of the positioning groove 6. The positioning mechanism also includes an elastic mechanism. The elastic mechanism 7 (such as a spring) is placed in the first telescopic rod 21. The elastic mechanism 7 is connected with the positioning pin 5, so that the positioning pin 5 pops out from the through hole 222 to be inserted into the positioning groove 6, and the positioning The end of the pin 5 inserted into the positioning groove 6 is bullet-shaped, and its smooth surface can effectively reduce the frictional force on the positioning pin when it is pulled out.

The second positioning mechanism also includes a pressing mechanism 8 for pushing the positioning pin 5 back into the first telescopic rod 21. The pressing mechanism 8 includes a push rod 81 arranged in the positioning groove and a button 82 arranged outside the vehicle frame. The rod 81 is connected to the button 82 , and the push rod 81 can move in the positioning groove 6 and is opposite to the positioning pin 5 when inserted into the positioning groove 6 . Other components and connection relationship are the same as in embodiment 2.

When in use, push the push rod 81 to move by pressing the button, and push the positioning pin 5 accordingly. When the handlebar standpipe 2 shrinks, the first telescopic rod 21 shrinks into the second telescopic rod 22, and after the positioning pin 5 is aligned with the through hole 222, the elastic mechanism 7 ejects the positioning pin 5 from the through hole 222 to be inserted into the positioning pin 5. In slot 6. When the handlebar standpipe needs to be expanded, only the positioning pin 5 is pushed back into the first telescopic rod by pressing the button 82, and the first telescopic rod can be moved to unfold the handlebar standpipe.

Example 4

A folding bicycle, comprising a vehicle frame 1, a handlebar standpipe 2, a steering bearing 3, a steering shaft 4, a front fork 9, a front wheel 10, a rear fork and a rear wheel. Describe the front wheel point positioning structure of a folding bicycle. The handlebar standpipe is provided with a quick release clip to fix the first telescopic rod and the second telescopic rod.

The vehicle frame is provided with a folding mechanism for folding the vehicle frame. The vehicle frame includes a front vehicle frame and a rear vehicle frame. The folding mechanism comprises a first pivot joint arranged on the front vehicle frame and a second pivot joint arranged on the rear vehicle frame. , a pivot shaft connected to the first pivot end and the second pivot end, and a buckle for locking the front frame and the rear frame, the first pivot end is pivotally connected to the second pivot end through the pivot shaft, In addition, the front fork is connected to one side of the front wheel (as shown in Figure 5). When folded, the front frame and the rear frame rotate and fold around the pivot, so that the front and rear wheels are juxtaposed, while the rear wheel is in the front The opposite side of the wheel from where the fork is attached.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. A front wheel positioning structure of a folding bike, characterized in that it comprises a first positioning mechanism and a second positioning mechanism, the first positioning mechanism is connected with a telescopic movable handlebar riser, and the second positioning mechanism It is connected with the vehicle frame so that the front wheel cannot rotate left and right when the first positioning mechanism cooperates with the second positioning mechanism. 2. The front wheel alignment structure of the folding bicycle according to claim 1, wherein the handlebar riser comprises a first telescopic link connected with the handlebar, and a second telescopic link connected with the steering shaft, the The first telescopic rod is socketed with the second telescopic rod, the first positioning mechanism includes a positioning pin provided on the first telescopic rod, and the second positioning mechanism includes a positioning pin provided on the vehicle frame. The locating pin is matched with the locating groove, so that when the handlebar riser shrinks, the locating pin is matched with the locating groove, so that the front wheel cannot rotate left and right. 3 . The front wheel positioning structure of the folding bicycle according to claim 2 , wherein the second telescopic rod is sleeved in the first telescopic rod. 4 . 4. The front wheel positioning structure of the folding bicycle according to claim 2, wherein the first telescopic rod is sleeved in the second telescopic rod, and a limit hole is provided on the second telescopic rod, so that The positioning pin protrudes from the limiting hole, and the positioning pin can move along the limiting hole, so that the positioning pin is locked in the positioning groove. 5. The front wheel alignment structure of the folding bicycle according to claim 2, wherein the first telescopic rod is sleeved in the second telescopic rod, and the second telescopic rod is provided with a The through hole corresponding to the position of the groove, the first positioning mechanism also includes an elastic mechanism, the elastic mechanism is connected with the positioning pin, so that the positioning pin pops out from the through hole to be inserted into the positioning groove; The second positioning mechanism further includes a pressing mechanism for pushing the positioning pin back into the first telescopic rod. 6. The front wheel alignment structure of the folding bicycle according to claim 5, wherein the pressing mechanism comprises a push rod arranged in the positioning groove and a button arranged outside the vehicle frame, and the push rod Connect with the key. 7 . The front wheel positioning structure of the folding bicycle according to claim 2 , wherein the end of the positioning pin inserted into the positioning groove is bullet-shaped. 8 . The front wheel positioning structure of a folding bicycle according to claim 2 , wherein a positioning indicator line is provided on the first telescopic rod or the second telescopic rod. 9. A folding bicycle, comprising a vehicle frame, a handlebar riser, a front fork, a front wheel and a rear wheel, the vehicle frame is provided with a folding mechanism for folding the vehicle frame, so that the front wheel and the rear wheel are parallel to each other It is characterized in that the folding bicycle is provided with the front wheel positioning structure of the folding bicycle according to any one of claims 1 to 8. 10. The folding bicycle according to claim 9, wherein the front fork is connected to one side of the front wheel, so that when the front wheel and the rear wheel are juxtaposed to each other, the rear wheel is located on the side of the front wheel. The opposite side where the front wheel connects to the fork.