CN102358373B

CN102358373B - Frame for electric bicycle

Info

Publication number: CN102358373B
Application number: CN 201110263294
Authority: CN
Inventors: 姜富军
Original assignee: BAODAO BICYCLE INDUSTRY GROUP Co Ltd
Current assignee: BAODAO BICYCLE INDUSTRY GROUP Co Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2013-03-13
Anticipated expiration: 2031-09-08
Also published as: CN102358373A

Abstract

The invention relates to a novel frame for a two-wheeled electric bicycle. The frame mainly comprises a head pipe, a lower pipe, an upper pipe, an upright pipe, a middle connector, a front horizontal fork, a rear horizontal fork, an upright fork, a fork connecting sheet, a battery box guide plate, a battery box base plate, a front hanger leg, a rear hanger leg, an outer hanger frame, a bracket base, a horizontal fork axle pipe and an upright fork axle pipe, wherein the principal axes of the lower pipe, the front horizontal fork and the rear hanger leg are continuous and tangent and have a shape of bowl; an arc-shaped part protruded on the upper part of the front hanger leg can be used for lifting the electric bicycle; the rear part of the front hanger leg is connected to the outer hanger frame while the lower end is connected to the upright fork; the principal axis of the front hanger leg is parallel to the upright pipe; a downward bent arc-shaped lower pipe, the upper pipe and the front horizontal fork are adopted; the front end of the upper pipe is connected to the middle rear part of the lower pipe; the upper end of the upper pipe is connected to the middle part of the upright pipe; the middle lower rear part of the upper pipe is connected to the middle connector; the front end of the rear horizontal fork is connected to the front horizontal fork while the rear end is connected to the fork connecting sheet; the upper surface of the upper pipe is continuously and approximately smoothly tangent with the upper surface of the lower pipe and the front surface of the upright pipe; the rear end of the lower pipe is connected to the battery box base plate; an opening part is left at the rear end of the lower pipe; and the bracket base is located at the rear lower end of the lower pipe.

Description

Electric bicycle fame

Technical field

The present invention relates to a kind of novel two-wheeled electric bicycle vehicle frame, especially adopt the two-wheeled electric bicycle vehicle frame of novel upper pipe, chain stay.

Background technology

At present, known electric bicycle fame kind, type are a lot, and these cars have many advantages separately, but also come with some shortcomings separately, for example: unreasonable structure, stress raisers are larger, strength at repeated alternation is lower, the inconvenience of getting on or off the bus, and the part adapted is inharmonious etc.

Summary of the invention

In order to overcome the deficiency of existing electric bicycle frame, the invention provides a kind of electric bicycle fame, this vehicle frame adopts novel upper, lower tube, chain stay, integral clothes rack structure.

The technical solution adopted for the present invention to solve the technical problems is: Novel frame is made of head tube, lower pipe, upper pipe, standpipe, center tap, front chain stay, rear chain stay, vertical fork, fork-join sheet, battery box guide, battery case base plate, clothes hanger foreleg, clothes hanger back leg, clothes hanger housing, bracket base, chain stay bridge tube, vertical fork bridge tube etc.The spindle axis of lower pipe, front chain stay, clothes hanger back leg is continuous in, tangent the bowl type.The outstanding arch section in clothes hanger foreleg top can be carried automobile-used, and clothes hanger foreleg rear portion is connected with the clothes hanger housing, the lower end is connected with vertical fork, and its spindle axis is parallel with standpipe.Adopt under the lower curved arc shape and manage, upper pipe, front chain stay, upper pipe front end is connected with lower pipe postmedian, the upper end is connected with the standpipe middle part, in lower rear portion be connected with center tap, upper pipe upper surface and lower pipe upper surface, the standpipe front surface is approximate coherent round and smooth tangent, rear chain stay front end is connected with front chain stay, the rear end is connected with the fork-join sheet, the rear end of lower pipe is connected with the battery case base plate, uncovered part is left in lower pipe rear end, center tap is positioned at the upper back of lower pipe, bracket base is positioned at lower pipe posterior end, the chain stay bridge tube is positioned at the battery case base plate rear end, the battery box guide lower end, vertical fork bridge tube is positioned at rear portion on the battery box guide.

The invention has the beneficial effects as follows, created novel body frame structure for automotive.Upper pipe upper surface and lower pipe upper surface, standpipe front surface are similar to coherent round and smooth tangent, have improved strained condition, have reduced stress and have concentrated, and make car load strength at repeated alternation Effective Raise.Simultaneously, the space of upper pipe and lower pipe top, standpipe front portion is larger, and lower pipe is lower, make get on or off the bus more convenient.Adopt forward and backward flat fork combination formula bottom fork structure, the spindle axis of front chain stay, clothes hanger leg is continuous, tangent, has improved the rear portion rigidity.The battery case base plate is connected with lower pipe rear end, and the battery case base plate is connected with chain stay bridge tube and vertical fork bridge tube with guide plate, has improved integral strength and rigidity.Bracket base is positioned at lower pipe posterior end, and is succinct, reliable.The uncovered part that lower pipe rear end is left can make things convenient for, smooth brake cable and the electric wire of deriving.The rear end of lower pipe is connected with the battery case base plate, mutually reinforcement.

This vehicle frame novelty, uniqueness, coordination, lucid and lively, smooth, attractive in appearance, generous, structural strength is high, lightweight, the life-span long, it is comfortable, easy to use to ride, and has distinct novelty, significant practicality, outstanding creativeness.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the vehicle frame front view.

Fig. 2 is vehicle frame block diagram 1.

Fig. 3 is vehicle frame block diagram 2.

1. head tubes among the figure, 2. time pipe,, 3. on pipe, 4. center tap, 5. standpipe, 6. bracket base, 7. battery case base plate, 8. front chain stay, 9. battery box guide, 10. rear chain stay, 11. fork-join sheets, 12. vertical forks, 13. clothes hanger forelegs, 14. clothes hanger back legs, 15. clothes hanger housings, 16. vertical bridge tubes, the 17. chain stay bridge tubes pitched.

The specific embodiment

Fig. 1 shows that the spindle axis of lower pipe 2, front chain stay 8, clothes hanger back leg 14 is continuous in, tangent the bowl type.Clothes hanger foreleg 13 spindle axiss are parallel with standpipe 5.Adopt and to manage 2 under the lower curved arc shape, upper pipe 3, front chain stay 8, upper pipe 3 front ends are connected with lower pipe 2 postmedians, the upper end is connected with standpipe 5 middle parts, in lower rear portion be connected with center tap 4, upper pipe 3 upper surfaces and lower pipe 2 upper surfaces, standpipe 5 front surfaces are similar to coherent round and smooth tangent, rear chain stay 10 front ends are connected with front chain stay 8, the rear end is connected with fork-join sheet 11, center tap 4 is positioned at the upper back of lower pipe, and bracket base 6 is positioned at the posterior end of lower pipe 2.

Fig. 2 shows that the outstanding arch section in clothes hanger foreleg 13 tops can carry automobile-usedly, and clothes hanger foreleg 13 rear portions are connected with clothes hanger housing 15, the lower end is pitched 12 and is connected with standing.Chain stay bridge tube 17 is positioned at battery case base plate 7 rear ends, battery box guide 9 lower ends, and vertical fork bridge tube 16 is positioned at the upper rear portion of battery box guide 9.

Fig. 3 shows that the rear end of lower pipe 2 is connected with battery case base plate 7, and uncovered part 2a is left in lower pipe 2 rear ends.

Claims

1. two-wheeled electric bicycle vehicle frame, mainly be made of head tube, lower pipe, upper pipe, standpipe, center tap, front chain stay, rear chain stay, vertical fork, fork-join sheet, battery box guide, battery case base plate, clothes hanger foreleg, clothes hanger back leg, clothes hanger housing, bracket base, chain stay bridge tube, vertical fork bridge tube, it is characterized in that: the spindle axis of lower pipe, front chain stay, clothes hanger back leg is continuous in, tangent the bowl type; The outstanding arch section in clothes hanger foreleg top can be carried automobile-used, and clothes hanger foreleg rear portion is connected with the clothes hanger housing, the lower end is connected with vertical fork, and its spindle axis is parallel with standpipe; Adopt pipe, upper pipe, front chain stay under the lower curved arc shape, upper pipe front end is connected with lower pipe postmedian, be connected in the middle part of upper end and the standpipe, in down the rear portion be connected with center tap, rear chain stay front end is connected with front chain stay, the rear end is connected with the fork-join sheet; Upper pipe upper surface and lower pipe upper surface, standpipe front surface are similar to coherent round and smooth tangent; The rear end of lower pipe is connected with the battery case base plate; Uncovered part is left in lower pipe rear end; Bracket base is positioned at lower pipe posterior end; Lower pipe is in the bottom of center tap; The chain stay bridge tube is positioned at battery case base plate rear end, battery box guide lower end, and vertical fork bridge tube is positioned at rear portion on the battery box guide.