CN205801361U - A kind of Portable double-foldable bicycle - Google Patents

Abstract

The utility model discloses a portable double folding bicycle, which comprises a front wheel, a frame assembly and a rear wheel. The frame assembly includes a handlebar, a front frame, a cross bar assembly, a rear frame and a seat. The handlebar is detachably connected At the upper end of the front frame, the cross bar assembly includes a front cross bar, a middle cross bar and a rear cross bar. The second folder is connected, and the vehicle seat is detachably connected to the rear cross bar. The inclination angle of the first folder is 58°-62°, and the inclination angle of the second folder is 89°-94°. The utility model is provided with a first folder and a second folder on the cross bar assembly, so that the handlebar can be tilted backward after being folded, and the front wheel and the rear wheel can be coaxial to facilitate parallel towing. The handlebar and the seat are disassembled and put into the backpack together with the folded bicycle, which is more convenient for travel, thereby improving the performance of the bicycle as a whole.

Description

A portable double folding bicycle

technical field

The utility model relates to the technical field of bicycles, in particular to a portable double-folding bicycle.

Background technique

At present, when going out for travel, cycling, shopping, commuting, etc., they will bring their own bicycles to travel, and now they use bicycles with a double-fold structure, which is inconvenient to drag, and even if they are folded when going out, they still need both hands to keep on the folded bicycle. Manipulation, such as when you need to carry luggage, shopping bags and other items, you have to bring a bicycle, which will be very troublesome; the bicycle after folding in half takes up a lot of space, and it is inconvenient to carry on the bus, subway, ship, etc., the above These will reduce the performance of the bicycle.

Therefore, improvements must be made at the above-mentioned defects.

Utility model content

The utility model provides a portable double-folding bicycle, which solves the problem of poor usability of the bicycle in the prior art.

The technical scheme of the utility model is achieved in that:

A portable double folding bicycle, comprising a front wheel connected in sequence, a frame assembly and a rear wheel, the frame assembly includes a handlebar, a front frame, a cross bar assembly, a rear frame and a seat, the front wheel is connected On the front frame, the handlebar is detachably connected to the upper end of the front frame, the rear wheel is connected to the rear frame, and the cross bar assembly includes front cross bars connected in sequence from front to back Rod, middle cross bar and rear cross bar, the front end of the front cross bar is fixedly connected with the front frame, the rear end of the front cross bar is connected with the front end of the middle cross bar through a first folder, and the middle cross bar The rear end of the bar is connected to the front end of the rear cross bar through a second folder, the rear end of the rear cross bar is fixedly connected to the rear frame, the vehicle seat is detachably connected to the rear cross bar, and the The inclination angle of the first folder is A, and the size of A is: 58°≤A≤62°; the inclination angle of the second folder is B, and the size of B is: 89°≤B≤94°.

Further, A=60°, B=93°.

Further, the handlebar is detachably connected to the front frame through a handlebar.

Further, the handlebar is a telescopic rod.

Further, the seat is detachably connected to the rear cross bar through a seat post.

Further, the seat post is a telescopic rod.

Further, at least one socket is provided on the cross bar assembly.

Further, pedals are provided on the rear frame.

Further, a motor drive device is provided on the rear frame.

Adopt the above-mentioned technical scheme, since the first folder and the second folder are arranged on the crossbar assembly, and the inclination angle of the first folder is set to 58°～62°, and the inclination angle of the second folder is set to 89°～94°, so that the handlebar can be tilted backward after folding, which is convenient for towing, and the front wheel and rear wheel can be coaxial, which is convenient for parallel towing. The handlebar and seat can also be disassembled to follow The folded bicycles are put into the backpack together, which is more convenient for travel, thereby improving the performance of the bicycle as a whole.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a left view structure diagram of an embodiment of a portable double folding bicycle of the present invention;

Fig. 2 is a structural schematic diagram of the rear folding of the front wheel of a portable double folding bicycle of the present invention;

Fig. 3 is a structural schematic diagram of a portable double folding bicycle of the present invention towed after being folded;

Fig. 4 is a structural schematic diagram of a portable bi-folding bicycle of the present invention folded and stored in a knapsack.

The serial numbers of the attached drawings and their descriptions:

1. Handlebar; 2. Handle bar; 3. Front frame; 4. Front wheel; 5. Front crossbar; 6. First folder; 7. Middle crossbar; 8. Second folder; 9. Rear cross bar; 10, pedal; 11, rear frame; 12, rear wheel; 13, seat post; 14, seat.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1 to Fig. 4, a kind of portable bi-folding bicycle provided by the utility model comprises the front wheel 4, frame assembly and rear wheel 12 connected in sequence, and the frame assembly includes handlebar 1, front frame 3, cross bar Assemblies, rear frame 11 and vehicle seat 14, front wheel 4 is connected on the front frame 3, handlebar 1 is detachably connected to the upper end of front frame 3, rear wheel 12 is connected on the rear frame 11, cross bar assembly includes The front cross bar 5, the middle cross bar 7 and the rear cross bar 9 connected sequentially from front to back, the front end of the front cross bar 5 is fixedly connected with the front frame 3, the rear end of the front cross bar 5 and the front end of the middle cross bar 7 are folded through the first fold The rear end of the middle cross bar 7 is connected with the front end of the rear cross bar 9 through the second folder 8, the rear end of the rear cross bar 9 is fixedly connected with the rear frame 11, and the vehicle seat 14 is detachably connected to the rear cross bar 9 , the inclination angle of the first folder 6 is A, the size of A is: 58°≤A≤62°, the inclination angle of the second folder 8 is B, and the size of B is: 89°≤B≤94°. The crossbar assembly of this technical solution is a double-folding structure, and the inclination angle of the first folder 6 is set to 58° to 62°, and the inclination angle of the second folder 8 is set to 89° to 94°. 6 and the second folder 8 are both tilted backwards. When the backward tilted angle of the second folder 8 is set to 90° to 94°, it is equivalent to the forward tilted angle of the second folder 8 being set to 86°. °～90°, so that the handlebar 1 can be tilted backward after being folded, so that it is convenient to tow; During use, the front wheel 4 is folded backward, and the rear wheel 12 is folded forward, which saves the space taken by the bicycle, and the diameter of the front wheel 4 and the rear wheel 12 is the same, and then the seat 14 is disassembled and inserted into the jack, so that It can be towed smoothly; when you need to put it in the backpack, remove the handlebar 1 and plug it into the socket. The folded bicycle has a rectangular structure, which is convenient to put in the backpack and walk on the back. The first folder 6 and The second folder 8 is a two-way folder, which can meet the folding habits of different users. This structure is easy to fold and disassemble, and is convenient for travel.

More specifically, A=60°, B=93°, the diameter of the front wheel 4 and the rear wheel 12 is 25cm, and the height of the backpack after being folded is not higher than 60cm, and the front wheel and the rear wheel are used as the bottom, which will not Damage the bottom of the backpack.

The handlebar 1 is detachably connected with the front frame 3 through the handlebar 2. The handlebar 2 is a telescopic rod, so that the height of the handlebar can be adjusted. The left and right handshakes on the handlebar 1 are foldable or detachable structures. In this way, the space occupied by the folded bicycle can be more fully reduced.

The vehicle seat 14 is detachably connected with the rear cross bar 9 by the vehicle seat bar 13, and the vehicle seat bar 13 is a telescopic rod, so the height of the vehicle seat can be adjusted, and the occupied space of the bicycle after folding can be substantially reduced by the telescopic rod.

At least one socket is arranged on the cross bar assembly. There are two technical solutions, one is used to insert the handlebar 2, and the other is used to insert the seatpost 13, the handlebar 1 and the seat 14 can be placed through the jack, saving the occupation of the handlebar and seat after folding Space.

The rear vehicle frame 11 is provided with a pedal 10, and the rear vehicle frame 11 is provided with a motor drive device. The function of pedaling a bicycle is realized by the pedal 10 . The driving device can realize power-assisted riding, reduce the physical output of people, and make going out more convenient. The driving device includes a driving power supply and a driving motor. During use, the driving power supply can also be installed in the rear cross bar according to actual installation requirements, which can save more space.

Several structures of the utility model in use are as follows:

1. Non-folding structure: that is, the structure for riding a bicycle, which can be used for people to ride, etc. Refer to Figure 1 for details.

2. Towing structure: By rotating the first folder and the second folder, the front wheel and the rear wheel are coaxial, and the seat is removed and plugged into the socket, so as to reduce the space and tow with the handlebar. For details, refer to image 3.

3. Portable structure: On the basis of the towing structure, remove the handlebar and plug it into the jack and put it in the backpack, see Figure 4 for details.

In summary, the utility model is provided with a first folder and a second folder on the crossbar assembly, and the inclination angle of the first folder is set to 58°～62°, and the inclination angle of the second folder The angle is set to 89°～94°, so that the handlebar can be tilted backward after folding, which is convenient for towing, and the front wheel and rear wheel can be coaxial, which is convenient for parallel towing. Disassemble it and put it into the backpack together with the folded bicycle, which is more convenient for travel, thereby improving the performance of the bicycle as a whole.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (9)

1. A portable double folding bicycle is characterized in that it comprises front wheels, a vehicle frame assembly and a rear wheel connected in sequence, it is characterized in that the vehicle frame assembly comprises a handlebar, a front vehicle frame, a cross bar assembly, a rear vehicle frame and seat, the front wheel is connected to the front frame, the handlebar is detachably connected to the upper end of the front frame, the rear wheel is connected to the rear frame, and the cross bar The assembly includes a front cross bar, a middle cross bar and a rear cross bar which are sequentially connected from front to back, the front end of the front cross bar is fixedly connected with the front frame, and the rear end of the front cross bar passes through the front end of the middle cross bar. The first folder is connected, the rear end of the middle crossbar is connected with the front end of the rear crossbar through the second folder, the rear end of the rear crossbar is fixedly connected with the rear frame, and the seat is detachably connected On the rear crossbar, the inclination angle of the first folder is A, the size of A is: 58°≤A≤62°, the inclination angle of the second folder is B, and the size of B is: 89°≤B≤94°. 2. The portable double folding bicycle according to claim 1, characterized in that, A=60°, B=93°. 3. The portable double folding bicycle according to claim 1 or 2, wherein the handlebar is detachably connected to the front frame through a handlebar. 4. The portable double folding bicycle according to claim 3, wherein the handlebar is a telescopic rod. 5. The portable double-folding bicycle according to claim 1 or 2, wherein the seat is detachably connected to the rear crossbar through a seat post. 6. The portable double-folding bicycle according to claim 5, wherein the seat post is a telescopic rod. 7. The portable double folding bicycle according to claim 1 or 2, characterized in that at least one socket is provided on the cross bar assembly. 8. The portable double folding bicycle according to claim 1 or 2, characterized in that, the rear frame is provided with pedals. 9. The portable double folding bicycle according to claim 1 or 2, characterized in that, the rear frame is provided with a motor driving device.