CN218617028U

CN218617028U - Rear frame of electric bicycle

Info

Publication number: CN218617028U
Application number: CN202222300443.5U
Authority: CN
Inventors: 张家钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-03-14
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses an electric bicycle rear frame, including the axis, bumper shock absorber and two back fork supports, two back fork supports distribute along controlling the direction, the back fork support includes first installation member and second installation member, the front end and the axis connection of first installation member, the front end and the first installation member of second installation member are connected, in the direction that the front side indicates the rear side, the whole tilt up of first installation member, the whole downward sloping of second installation member, the left end of two first installation members passes through the dead lever to be connected, the both ends of bumper shock absorber are connected with axis and dead lever respectively, the bumper shock absorber is laid along the fore-and-aft direction, the rear wheel is installed back on two back fork supports, the rear end of bumper shock absorber is located the rear upper side that the rear wheel was put foremost, this structure can improve rear frame space utilization when installing the bumper shock absorber, reduce the length of automobile body.

Description

Rear frame of electric bicycle

Technical Field

The utility model relates to an electric bicycle technical field, concretely relates to electric bicycle rear frame.

Background

Along with the development of the country, the safety is more and more emphasized. After drunk driving is carried out in the criminal, the driving industry of the generation is started. The electric vehicle of riding instead of walk need to be used to ride instead of walk on behalf of the user, and the electric vehicle of riding instead of walk needs to be as little as possible to make vapour car trunk can hold.

The utility model discloses a provide an ultra-light folding electric bicycle frame in utility model patent with CN215971916U, in this patent, divide into preceding frame and back frame with the frame, preceding frame passes through the crossbeam with the back frame and connects, and the crossbeam includes front beam and back beam, and front beam and back beam pass through the scray and connect, and when using, the fifty percent discount of frame and back frame before can realizing through the scray to reduce the length when the vehicle is placed.

The existing electric vehicle for riding instead of walk needs to be short, narrow, short and small, and can be conveniently placed in a car trunk for carrying and using. Traditional electric motor car drawback of riding instead of walk, all motorcycle types back fork support mounting bumper shock absorbers are the installation principle that pushes up upwards, and the majority is that two bumper shock absorbers push up the installation upwards, designs like this and can not satisfy small to the electric motor car of riding instead of walk, and the short requirement of wheel base, so a lot of manufacturers can only give up the scheme of back fork support mounting bumper shock absorber, and the electric motor car of riding instead of walk like this is uncomfortable, and is unsafe again.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a frame behind electric bicycle, this structure can improve back frame space utilization when the installation bumper shock absorber, reduces the length of automobile body.

The utility model provides a frame behind electric bicycle, including the axis, bumper shock absorber and two back fork supports, two back fork supports distribute along left right direction, the back fork support includes first installation member and second installation member, the front end and the axis connection of first installation member, the front end and the first installation member of second installation member are connected, in the direction of front side finger rear side, the whole tilt up of first installation member, the whole downward sloping of second installation member, the left end of two first installation members passes through the dead lever and connects, the both ends of bumper shock absorber are connected with axis and dead lever respectively, the bumper shock absorber is laid along the fore-and-aft direction, the back wheel is installed back on two back fork supports, the rear end of bumper shock absorber is located the back top of back wheel foremost position.

Preferably, the battery mounting bracket further comprises a battery mounting bracket, and the front end of the battery mounting bracket is connected with the two first mounting rod pieces.

Preferably, the battery mounting frame and the two second mounting rod pieces are connected through a support rod.

Preferably, a battery box is installed on the battery mounting frame.

Preferably, the battery box is a pull-out battery box.

Preferably, a controller box is arranged on the front side of the middle shaft.

Preferably, the first mounting rod and the second mounting rod of the rear fork bracket are connected through a connecting rod.

Preferably, in a direction from the front side to the rear side, the rear fork brackets located on the right side are entirely inclined to the right side, and the rear fork brackets located on the left side are entirely inclined to the left side.

The beneficial effects of the utility model are embodied in: in the embodiment, through the matching of the middle shaft, the shock absorber and the two rear fork supports, the shock absorber is transversely installed, after the rear wheels are installed on the two rear fork supports, the rear end of the shock absorber is positioned above and behind the position of the foremost side of the rear wheels, so that the length occupied by the shock absorber in the front-back direction and the front-back direction of the rear wheels is partially overlapped, the vacant space between the rear wheels and the middle shaft can be fully utilized, and the length of a vehicle body is reduced; the transversely installed shock absorber can also play soft tail effect, can let short section shock absorber also have very good shock attenuation effect, and along the shock absorber of fore-and-aft direction installation, forward thrust has when the front side return, can play energy-conserving effect, and the back frame that so sets up can be more steady, and is more comfortable, improves back frame space utilization, reduces the length of automobile body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a right side view of the present invention;

fig. 2 is a top view of the battery mounting rack of the present invention.

In the attached drawings, 1-a middle shaft, 2-a shock absorber, 3-a first mounting rod piece, 4-a second mounting rod piece, 5-a battery mounting frame, 6-a support rod, 7-a connecting rod, 8-a controller box, 9-a rear wheel and 10-a fixing rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

As shown in fig. 1, the embodiment provides an electric bicycle rear frame, which includes a center shaft 1, a shock absorber 2 and two rear fork supports, the two rear fork supports are distributed along the left and right direction, the rear fork supports include a first installation rod 3 and a second installation rod 4, the front end of the first installation rod 3 is connected with the center shaft 1, the front end of the second installation rod 4 is connected with the first installation rod 3, the front side points to the rear side, the first installation rod 3 is wholly inclined upwards, the second installation rod 4 is wholly inclined downwards, the left end portions of the two first installation rods 3 are connected through a fixing rod 10, the two ends of the shock absorber 2 are respectively connected with the center shaft 1 and the fixing rod 10, the shock absorber 2 is arranged along the front and rear direction, the rear wheel 9 is installed on the two rear fork supports, and the rear end of the shock absorber 2 is located above the foremost position of the rear wheel 9.

In the embodiment, through the matching of the middle shaft 1, the shock absorber 2 and the two rear fork supports, the shock absorber 2 is different from the traditional vertical installation, the shock absorber 2 is transversely installed in the embodiment, after the rear wheels 9 are installed on the two rear fork supports, the rear end of the shock absorber 2 is positioned above the rear part of the position of the foremost side of the rear wheels 9, so that the length occupied by the shock absorber 2 in the front-rear direction and the front-rear direction of the rear wheels 9 is partially overlapped, the vacancy between the rear wheels 9 and the middle shaft 1 can be fully utilized, the length of a vehicle body is reduced, and the single shock absorber 2 is arranged, so that the size is small, the cost is reduced, and the device is practical; transversely install bumper shock absorber 2 and can also play soft tail effect, can let short money bumper shock absorber 2 also have very good shock attenuation effect, simultaneously along the bumper shock absorber 2 of fore-and-aft direction installation, has prorsad thrust when preceding side return, can play energy-conserving effect, the back frame that so sets up can be more steady, and is more comfortable, improves back frame space utilization, reduces the length of automobile body.

In a specific using process, referring to a patent with a publication number of CN215971916U, a central shaft 1 is connected with a rear cross beam, and the rear cross beam is connected with a front cross beam through a folder, which is not described in detail herein.

The battery mounting structure further comprises a battery mounting frame 5, and the front end of the battery mounting frame 5 is connected with the two first mounting rod pieces 3 and is used for mounting a battery box. In this embodiment, the battery mounting bracket 5 is provided with a battery box. In this embodiment, the battery box is a pull-out battery box.

In this embodiment, the battery mounting bracket 5 and the two second mounting rods 4 are connected through the support rod 6, and the support rod 6 is connected between the battery mounting bracket 5 and the second mounting rods 4, so that the battery mounting bracket 5 is more stably supported.

In the present embodiment, a controller box 8 is disposed on the front side of the bottom bracket 1.

In this embodiment, the first mounting rod piece 3 and the second mounting rod piece 4 of the rear fork support are connected through the connecting rod 7, and the shape of the two rear fork supports is set in such a way that the first mounting rod piece 3 is wholly inclined upwards and the second mounting rod piece 4 is wholly inclined downwards in the direction from the front side to the rear side. The back vent support sets up to similar A type in this embodiment, overturns traditional design, can match with the setting of horizontal bumper shock absorber 2, when reducing length, guarantees structural strength.

In the direction from the front side to the rear side in this embodiment, the rear fork support located on the right side is wholly inclined to the right side, and the rear fork support located on the left side is wholly inclined to the left side, so that the rear wheel 9 is installed between the two rear fork supports, and the structure of the installed rear wheel 9 is the prior art, and redundant description is not given here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an electric bicycle rear frame, a serial communication port, including axis (1), bumper shock absorber (2) and two back vent supports, two back vent supports distribute along left right direction, the back vent support includes first installation member (3) and second installation member (4), the front end and the axis (1) of first installation member (3) are connected, the front end and the first installation member (3) of second installation member (4) are connected, in the direction that the foreside points to the rear side, first installation member (3) whole tilt up, second installation member (4) whole downward sloping, the left end of two first installation members (3) passes through dead lever (10) to be connected, the both ends of bumper shock absorber (2) are connected with axis (1) and dead lever (10) respectively, bumper shock absorber (2) are laid along the fore-and-aft direction, rear wheel (9) are installed the back on two back vent supports, the rear end of bumper shock absorber (2) is located the rearmost top of rear wheel (9) foremost position.

2. The electric bicycle rear frame according to claim 1, characterized by further comprising a battery mounting bracket (5), wherein the front end of the battery mounting bracket (5) is connected with both of the two first mounting bars (3).

3. The rear frame of the electric bicycle according to claim 2, characterized in that the battery mounting frame (5) and the two second mounting bars (4) are connected through a support rod (6).

4. An electric bicycle rear frame according to claim 2, characterized in that the battery mounting bracket (5) is provided with a battery box.

5. The rear frame of the electric bicycle as claimed in claim 4, wherein the battery box is a pull-out battery box.

6. The rear frame of the electric bicycle according to claim 1, characterized in that the front side of the middle axle (1) is provided with a controller box (8).

7. An electric bicycle rear frame according to claim 1, characterized in that the first mounting bar (3) and the second mounting bar (4) of the rear fork carrier are connected by a connecting rod (7).

8. The rear frame for an electric bicycle according to claim 1, wherein the rear fork brackets on the right side are entirely inclined to the right side and the rear fork brackets on the left side are entirely inclined to the left side in a direction from the front side to the rear side.