CN213677017U

CN213677017U - Electric bicycle frame

Info

Publication number: CN213677017U
Application number: CN202022612935.9U
Authority: CN
Inventors: 周广德
Original assignee: Changzhou Niuniu New Energy Co ltd
Current assignee: Changzhou Niuniu New Energy Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-13
Anticipated expiration: 2030-11-12

Abstract

The utility model belongs to the technical field of vehicle frames, in particular to an electric bicycle frame, which comprises a frame girder, a saddle supporting shaft and a lower cross bar frame, wherein the saddle supporting shaft and the lower cross bar frame are welded and fixed at the bottom of the frame girder; upper and lower both ends through the frame girder set up camber portion and lower camber portion respectively, make the focus of whole frame girder move down, and increased and the saddle back shaft between the interval, make the activity space increase of driving the people, thereby can make and ride more convenient, it is wide to be suitable for the crowd, and set up between frame girder and the saddle back shaft and carried the stay tube, carry the stay tube and can provide trampling space of foot for driving the people, can also act as and carry and pull the handle, strengthen the stability between frame girder and the saddle back shaft, make frame intensity higher.

Description

Electric bicycle frame

Technical Field

The utility model belongs to the technical field of the frame, concretely relates to electric bicycle frame.

Background

Booster bicycle, a novel two-wheeled vehicle, belong to one kind of bicycle, regard as the auxiliary power source with the battery, ann has the motor, and possess power auxiliary system, can realize the manpower and ride and the motor helps the novel vehicle of integration, in the booster bicycle field, motor mounted position mainly divide into two kinds, one kind is put in, the motor is installed at the intermediate position of automobile body promptly the motor of five-way position promptly, put the motor in being called, put motor and connected to frame, and be connected and transmit power through chain and rear wheel, pedal is installed to the both sides of motor simultaneously, under the condition that the motor does not have the power, it can realize the manpower through pedal to ride the passerby, resistance and normal bicycle do not have the difference.

Most of the existing frames are aluminum alloy frames, but the bicycle is ridden, inevitable meeting needs obstacles to remove the frame, the center of gravity and the structural design of the frame can play a labor-saving effect, and a user can conveniently remove the frame.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric bicycle frame to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a frame of an electric bicycle comprises a frame main beam, a saddle supporting shaft and a lower cross bar frame, wherein the saddle supporting shaft and the lower cross bar frame are welded and fixed at the bottom of the frame main beam, a supporting frame is arranged at the top of the saddle supporting shaft, one end of the supporting frame is fixedly connected with the saddle supporting shaft, the other end of the supporting frame is positioned at one end, far away from the frame main beam, of the lower cross bar frame, so that the saddle supporting shaft, the lower cross bar frame and the supporting frame are encircled to form a triangle, a fixing part is arranged between the lower cross bar frame and the supporting frame and fixedly connected with the fixing part, a lifting pipe is welded and fixed between the frame main beam and the saddle supporting shaft, a rotating shaft pipe is welded and fixed at the top of the frame main beam, a reinforcing pipe is arranged at the bottom end of the rotating shaft pipe and fixedly fixed between the frame main, the bottom spiro union of lower horizontal bar frame is installed the controller mounting box, the top fixed mounting of support frame has goods shelves.

Preferably, the top of frame girder is equipped with camber beam portion, go up camber beam portion to the direction of steering spindle pipe is crooked, the bottom of frame girder is equipped with down the camber beam portion, down the camber beam portion to the direction of saddle back shaft is crooked.

Preferably, the outer side wall of the rotating shaft tube is fixedly provided with a limiting shaft, and the limiting shaft is provided with a limiting clamping shaft which moves along the axial direction in a sliding manner.

Preferably, the number of the limiting shafts is two, and a rubber damping ring is arranged between the rotating shaft pipe and the limiting shaft.

Preferably, the lifting pipe is located at the bottom end of the included angle between the main beam of the frame and the support shaft of the seat, and a rubber pad is clamped at the top of the lifting pipe.

Preferably, a clamping shaft is fixedly arranged at the top of the lifting pipe, a clamping groove matched with the clamping shaft is formed in the bottom of the rubber pad, and the rubber pad is fixedly clamped with the lifting pipe through the clamping shaft.

Preferably, the joints of the frame main beam, the saddle support shaft and the lower cross rod frame are provided with shaft cylinders, and the frame main beam, the saddle support shaft and the lower cross rod frame are all welded and fixed with the shaft cylinders.

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

the utility model discloses in, upper and lower both ends through the frame girder set up respectively and go up camber portion and lower camber portion, make the focus of whole frame girder move down, and increased and the saddle back shaft between the interval, make the activity space increase of driving and taking advantage of people, thereby can make to ride more convenient, it is wide to be suitable for the crowd, and set up between frame girder and the saddle back shaft and carried the stay tube, the stay tube can provide the trampling space of foot for driving and taking advantage of, can also act as and carry the handle, strengthen the stability between frame girder and the saddle back shaft, make frame intensity higher.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the middle supporting frame of the present invention;

FIG. 3 is a schematic structural view of the middle and lower cross bar frames of the present invention;

fig. 4 is a schematic structural view of the middle lifting pipe of the present invention.

In the figure: 1. a frame main beam; 11. a lower bent portion; 12. an upper beam section; 13. a reinforcement pipe; 14. a rotating shaft tube; 141. a limiting shaft; 2. a seat support shaft; 3. a lower cross bar frame; 31. a shaft cylinder; 4. a support frame; 41. a shelf; 5. lifting the tube; 51. clamping a shaft; 52. a rubber pad; 6. a battery mounting bracket; 7. a controller mounting box; 8. limiting the shaft; 9. and a fixing member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a frame of an electric bicycle comprises a frame main beam 1, a saddle supporting shaft 2 and a lower cross bar frame 3 which are welded and fixed at the bottom of the frame main beam 1, wherein a supporting frame 4 is arranged at the top of the saddle supporting shaft 2, one end of the supporting frame 4 is fixedly connected with the saddle supporting shaft 2, the other end of the supporting frame 4 is arranged at one end, far away from the frame main beam 1, of the lower cross bar frame 3, so that the saddle supporting shaft 2, the lower cross bar frame 3 and the supporting frame 4 enclose a triangle, a fixing part 9 is arranged between the lower cross bar frame 3 and the supporting frame 4 and is fixedly connected with the fixing part 9, a lifting pipe 5 is welded and fixed between the frame main beam 1 and the saddle supporting shaft 2, a rotating shaft pipe 14 is welded and fixed at the top of the frame main beam 1, a reinforcing pipe 13 is arranged at the bottom end of the rotating shaft pipe 14, the reinforcing pipe 13 is, the bottom of the lower cross bar frame 3 is screwed with a controller mounting box 7, and the top of the support frame 4 is fixedly provided with a goods shelf 41.

In this embodiment, through setting up by frame girder 1, saddle back shaft 2, the car frame body that sheer pole frame 3 and support frame 4 are constituteed, wherein camber beam portion 12 and lower camber beam portion 11 are set up respectively at the upper and lower both ends of frame girder 1, make the focus of whole frame girder 1 move down, and increased and saddle back shaft 2 between the interval, make the activity space increase of driving the people, thereby it is more convenient to make to ride, it is wide to be suitable for the crowd, and set up between frame girder 1 and the saddle back shaft 2 and carried stand pipe 5, carry pipe 5 and can provide the trampling space of foot for driving the people, can also act as and carry the pull handle, strengthen the stability between frame girder 1 and the saddle back shaft 2, make frame intensity higher.

In fig. 1, the top of the frame main beam 1 is provided with an upper beam bending portion 12, the upper beam bending portion 12 bends towards the direction of the rotating shaft tube 14, the bottom of the frame main beam 1 is provided with a lower beam bending portion 11, the lower beam bending portion 11 bends towards the direction of the saddle supporting shaft 2, so that the center of gravity of the whole frame main beam 1 moves downwards, the distance between the whole frame main beam 1 and the saddle supporting shaft 2 is increased, the moving space of a driver is increased, the riding is more convenient, and the riding range is wide.

In fig. 1, the outer side wall of the rotating shaft tube 14 is fixedly provided with a limiting shaft 141, the limiting shaft 141 is provided with a limiting clamping shaft 8 moving along the axial direction in a sliding manner, the number of the limiting shafts 141 is two, a rubber damping ring is arranged between the rotating shaft tube 14 and the limiting shaft 141, the limiting shaft 141 is arranged on the rotating shaft tube 14, the limiting clamping shaft 8 is arranged on the limiting shaft 141 in a sliding manner, when the device is used, the limiting clamping shaft 8 can slide upwards along the axial direction, the limiting clamping shaft 8 is clamped with a bicycle handlebar in a matching manner, and in the process of a carrier, a head is locked, and the device is convenient to carry.

In fig. 1 and 4, the lift tube 5 is located frame girder 1, the bottom of the 2 contained angles of saddle back shaft, rubber pad 52 is installed to the top block of lift tube 5, the top of lift tube 5 has set firmly card axle 51, the bottom of rubber pad 52 is equipped with the draw-in groove with card axle 51 complex, rubber pad 52 is fixed with lift tube 5 block through card axle 51, through set up rubber pad 52 at the top of lift tube 5, can strengthen the antiskid nature of lift tube 5, use electronic riding mode when people, the foot is stepped on lift tube 5, can prevent to skid in rainy day.

In fig. 3 and 4, a shaft tube 31 is arranged at the joint of the frame main beam 1, the seat support shaft 2 and the lower cross bar frame 3, the frame main beam 1, the seat support shaft 2 and the lower cross bar frame 3 are all welded and fixed with the shaft tube 31, and the shaft tube 31 is used for connecting the frame main beam 1, the seat support shaft 2 and the lower cross bar frame 3 and is used for installing a pedal rotating shaft, so that the bicycle can be ridden by manpower.

The utility model discloses a theory of operation and use flow: install the helping hand battery on battery mounting bracket 6, the upper and lower both ends of frame girder 1 set up camber beam portion 12 and camber beam portion 11 respectively, make the focus of whole frame girder 1 move down, and increased and saddle back shaft 2 between the interval, make the activity space increase of driving and taking people, thereby can make and ride more convenient, it is wide to be suitable for the crowd, and set up between frame girder 1 and the saddle back shaft 2 and carried trombone slide 5, carry trombone slide 5 can provide the trampling space of foot for driving and taking people, can also act as and carry the handle, strengthen the stability between frame girder 1 and the saddle back shaft 2, make frame intensity higher, at the in-process of carrier, can follow the spacing card axle 8 of axial lapse, make spacing card axle 8 die with the cooperation card of bicycle handlebar, the locomotive can not crooked convenient transport.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric bicycle frame which is characterized in that: comprises a frame main beam (1) and a saddle supporting shaft (2) and a lower cross bar frame (3) which are fixed at the bottom of the frame main beam (1) in a welding way, wherein a supporting frame (4) is arranged at the top of the saddle supporting shaft (2), one end of the supporting frame (4) is fixedly connected with the saddle supporting shaft (2), and the other end of the supporting frame is positioned at one end of the lower cross bar frame (3) far away from the frame main beam (1) so as to ensure that the saddle supporting shaft (2), the lower cross bar frame (3) and the supporting frame (4) enclose a triangle, a fixing piece (9) is arranged between the lower cross bar frame (3) and the supporting frame (4) and passes through the fixing piece (9) for fixed connection, a lifting pipe (5) is fixed between the frame main beam (1) and the saddle supporting shaft (2), a rotating shaft pipe (14) is fixed at the top of the frame main, the bottom of central siphon (14) is equipped with reinforcement pipe (13), reinforcement pipe (13) welded fastening in between frame girder (1) and central siphon (14), fixed mounting has battery mounting bracket (6) between the contained angle of lower beam frame (3) and saddle back shaft (2), controller mounting box (7) are installed to the bottom spiro union of lower beam frame (3), the top fixed mounting of support frame (4) has goods shelves (41).

2. An electric bicycle frame as claimed in claim 1, characterized in that: the top of frame girder (1) is equipped with bend portion (12), go up bend portion (12) to the direction of central siphon (14) is crooked, the bottom of frame girder (1) is equipped with down bend portion (11), down bend portion (11) to the direction of saddle back shaft (2) is crooked.

3. An electric bicycle frame as claimed in claim 1, characterized in that: the outer side wall of the rotating shaft tube (14) is fixedly provided with a limiting shaft (141), and the limiting shaft (141) is provided with a limiting clamping shaft (8) which moves along the axial direction in a sliding manner.

4. An electric bicycle frame as claimed in claim 3, characterized in that: the number of the limiting shafts (141) is two, and a rubber damping ring is arranged between the rotating shaft pipe (14) and the limiting shafts (141).

5. An electric bicycle frame as claimed in claim 1, characterized in that: the lifting pipe (5) is located at the bottom end of an included angle between the frame main beam (1) and the seat support shaft (2), and a rubber pad (52) is installed at the top of the lifting pipe (5) in a clamping mode.

6. An electric bicycle frame as claimed in claim 5, wherein: the top of the lifting pipe (5) is fixedly provided with a clamping shaft (51), the bottom of the rubber pad (52) is provided with a clamping groove matched with the clamping shaft (51), and the rubber pad (52) is fixedly clamped with the lifting pipe (5) through the clamping shaft (51).

7. An electric bicycle frame as claimed in claim 1, characterized in that: the connection parts of the frame main beam (1), the seat support shaft (2) and the lower cross rod frame (3) are provided with shaft cylinders (31), and the frame main beam (1), the seat support shaft (2) and the lower cross rod frame (3) are all welded and fixed with the shaft cylinders (31).