CN207791008U - Structure of folding two-wheeled vehicle supported by unilateral double tubes on the rear wheel - Google Patents

Abstract

The utility model relates to the technical field of two-wheeled vehicles, in particular to the structure of folding two-wheeled vehicles supported by unilateral double tubes on the rear wheel, in order to solve the problem that the support structure adopted by the rear wheels of the existing folding two-wheeled vehicles is not beautiful and practical enough, and is not popular among young people. It is agreed that the market popularity is not enough, and a structure of a single-sided double-tube support folding two-wheeled vehicle is provided. The rear wheel is installed on the rear unilateral frame through the rear hub and the rear hub shaft, and the drive is installed on the rear hub shaft. Flywheel, the rear unilateral frame includes an upper tube and a lower tube, the rear ends of the upper tube and the lower tube intersect on the axis of the rear wheel shaft and form a support arm for the hub shaft; between the driving flywheel and the chainring A transmission belt is installed; in the side view direction of the vehicle body, the upper tube and the lower tube of the rear unilateral frame are located between the upper straight section and the lower straight section of the transmission belt. The strength of the one-piece molding process is also guaranteed, which is in line with the aesthetics of young people.

Description

Structure of folding two-wheeled vehicle supported by unilateral double tubes on the rear wheel

technical field

The utility model relates to the technical field of two-wheeled vehicles, in particular to the structure of a folded two-wheeled vehicle supported by unilateral double tubes on the rear wheel. The two-wheeled vehicle includes bicycles, electric bicycles, electric boosters, and two-wheeled electric vehicles.

Background technique

As a form of short-distance driving, two-wheeled vehicles are widely used for exercise or entertainment. The current two-wheeled vehicle industry has gradually developed towards miniaturized folding two-wheeled vehicles. At present, the folding two-wheeled vehicles that appear on the market are structurally The support structure adopted for the rear wheels is not beautiful and practical enough, and is not recognized by young people, and the market popularity is not enough.

Utility model content

The technical problem to be solved by the utility model is: in order to solve the problem that the support structure adopted by the rear wheel of the existing folding two-wheeler is not beautiful and practical, not recognized by young people, and the market popularity is not enough, a rear wheel unilateral Double tubes support the structure of the folding two-wheeler.

The technical scheme adopted by the utility model to solve its technical problems is: a structure of a rear wheel unilateral double tube support folding two-wheeled vehicle, the rear wheel is installed on the rear unilateral vehicle frame through the rear hub and the rear hub shaft, and the rear hub A driving flywheel is installed on the shaft, and the rear unilateral frame includes an upper tube and a lower tube, the rear ends of which are intersected on the axis of the rear wheel shaft and form a supporting arm for supporting the hub shaft; the driving flywheel A drive belt is installed between the drive belt and the crankshaft; in the side view direction of the vehicle body, the upper tube and the lower tube of the rear unilateral frame are located between the upper straight section and the lower straight section of the drive belt.

As a preference, in order to make the structure compact, the force of the frame is reasonable, and the riding is stable, the connection line between the two ends of the down tube and the horizontal plane has an included angle of 0°-25°, and the connection line between the two ends of the upper tube The connection line between the line and the endpoints at both ends of the down tube has an included angle of 10°-35°.

Preferably, also for compact structure, reasonable force on the frame, and stable riding, the straight line section on the transmission belt is parallel to the connecting line between the two ends of the upper tube.

Preferably, in order to protect the transmission belt, an upper guide groove is provided on the upper side of the upper tube, and the upper straight section of the transmission belt is located in the upper guide groove.

Preferably, also to make the structure compact, the frame to bear a reasonable force, and the riding to be stable, the angle between the straight line under the drive belt and the two ends of the down tube is less than or equal to 10°.

Preferably, the lower straight section of the transmission belt is parallel to the line connecting the ends of the lower tube.

Preferably, a lower guide groove is provided on the lower side of the lower tube, and the lower straight section of the transmission belt is located in the lower guide groove.

Preferably, the upper tube is integrally formed with a brake mounting frame.

The beneficial effect of the utility model is that, in the structure of a single-sided double-tube support folding two-wheeled vehicle of the utility model, the upper tube and the lower tube are arranged in the middle of the transmission belt, and guides are even provided on the upper and lower sides of the upper tube and the lower tube. groove, and then let the transmission belt rotate in the guide groove, the overall body is more concise, the appearance is better, and the strength of the body is guaranteed by the one-piece molding process, which is in line with the aesthetics of young people.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a perspective view of the utility model.

In the figure: 1. rear wheel, 2. rear hub, 3. driving flywheel, 4. upper tube, 5. lower tube, 6. chainring, 7. transmission belt, 8. brake mounting frame.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

Figure 1 and Figure 2 show the structure of a rear wheel unilateral double tube support folding two-wheeled vehicle, the rear wheel 1 is installed on the rear unilateral vehicle frame through the rear hub 2 and the rear hub axle, and the rear hub axle is equipped with Drive the flywheel 3, the rear unilateral frame includes an upper tube 4 and a lower tube 5, the rear ends of the upper tube 4 and the lower tube 5 intersect on the axis of the rear wheel shaft and form a support arm for the hub shaft; A transmission belt 7 is installed between the flywheel 3 and the chainring 6; in the side view direction of the vehicle body, the upper tube 4 and the lower tube 5 of the rear unilateral frame are located between the upper straight section and the lower straight section of the transmission belt 7, and the upper tube 4 is integrally formed with a brake mounting frame 8, and a transmission belt 7 is installed between the drive flywheel 3 and the tooth plate 6. The transmission belt 7 is a chain or a belt, and the transmission belt 7 is engaged between the drive flywheel 3 and the tooth plate 6. The rear of the transmission belt 7 The arc section meshes with the drive flywheel 3, the front arc section of the transmission belt 7 meshes with the tooth plate 6; the connection line between the ends of the lower tube 5 and the horizontal plane has an included angle of 0° to 25°, and the two ends of the upper tube 4 The connection line of the end points and the connection line of the two ends of the down pipe 5 have an included angle of 10° to 35°, and the line between the lower straight line of the transmission belt 7 and the end points of the lower pipe 5 has an included angle less than or equal to 10°. The straight section of the transmission belt 7 is a straight section that does not consider the sagging factor caused by the gravity of the transmission belt 7 itself.

Another kind of unilateral double-pipe support folding two-wheeled vehicle structure, the rear wheel 1 is installed on the rear unilateral frame through the rear hub 2 and the rear hub shaft, the driving flywheel 3 is installed on the rear hub shaft, and the rear unilateral frame Comprising an upper tube 4 and a lower tube 5, the rear ends of the upper tube 4 and the lower tube 5 intersect on the axis of the rear wheel axle to form a support arm for the hub shaft; There is a transmission belt 7; in the side view direction of the vehicle body, the upper pipe 4 and the lower pipe 5 of the rear unilateral frame are located between the upper straight section and the lower straight section of the transmission belt 7, and the upper pipe 4 is integrally formed with a brake mounting frame 8 A transmission belt 7 is installed between the driving flywheel 3 and the tooth plate 6, the transmission belt 7 is a chain or a belt, the transmission belt 7 is engaged between the driving flywheel 3 and the tooth plate 6, and the back arc segment of the transmission belt 7 is engaged with the driving flywheel 3, The front arc section of the transmission belt 7 is meshed with the tooth plate 6; the upper straight section of the transmission belt 7 is parallel to the connection line between the ends of the upper tube 4, and the upper side of the upper tube 4 is provided with an upper guide groove, and the upper straight section of the transmission belt 7 is located at the In the above-mentioned upper guide groove, the lower straight section of the transmission belt 7 is parallel to the connection line between the ends of the lower tube 5, and the lower side of the lower tube 5 is provided with a lower guide groove, and the lower straight section of the transmission belt 7 is located in the lower guide groove. ; The straight line section of the transmission belt 7 is a straight line section that does not consider the sagging factor caused by the self gravity of the transmission belt 7 .

Inspired by the above-mentioned ideal embodiment according to the utility model, and through the above-mentioned description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (8)

1. a kind of structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel, trailing wheel (1) are installed by rear drum (2) and rear drum axis On rear unilateral vehicle frame, driving flywheel (3) is installed on rear drum axis, it is characterised in that：Afterwards unilateral vehicle frame include upper tube (4) and The rear end of down tube (5), the upper tube (4) and down tube (5) intersects at the support that supporting point is formed on hind axle axis, to flower drum shaft Arm；Transmission belt (7) is installed between the driving flywheel (3) and chain wheel (6)；In vehicle body side-looking direction, the rear unilateral vehicle The upper tube (4) and down tube (5) of frame are located on transmission belt (7) between straightway and lower straightway.

2. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1, it is characterised in that：The down tube (5) line of both ends endpoint has 0 °~25 ° of angle, line and the down tube (5) of upper tube (4) both ends endpoint with horizontal plane The line of both ends endpoint has 10 °~35 ° of angle.

3. the structure of unilateral two-tube support folding two-wheel vehicle according to claim 1, it is characterised in that：The transmission belt (7) straightway is parallel to the line of upper tube (4) both ends endpoint on.

4. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1, it is characterised in that：The upper tube (4) upside is equipped with upper guide groove, and the upper straightway of transmission belt (7) is located in the upper guide groove.

5. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1, it is characterised in that：The transmission Have between straightway and the line of down tube (5) both ends endpoint under band (7) and is less than or equal to 10 ° of angles.

6. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1 or 3, it is characterised in that：It is described Straightway is parallel to the line of down tube (5) both ends endpoint under transmission belt (7).

7. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1, it is characterised in that：The down tube (5) downside is equipped with lower guide groove, and the lower straightway of transmission belt (7) is located in the lower guide groove.

8. the structure of the unilateral two-tube support folding two-wheel vehicle of trailing wheel according to claim 1, it is characterised in that：The upper tube (4) integrally formed with brake mounting bracket (8) on.