CN214689976U

CN214689976U - Electric bicycle frame

Info

Publication number: CN214689976U
Application number: CN202120768390.2U
Authority: CN
Inventors: 彭小平
Original assignee: Hongtai Intelligent Technology Dongguan Co Ltd
Current assignee: Hongtai Intelligent Technology Dongguan Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-12
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses an electric bicycle frame, mainly include frame head pipe, frame well pipe, back seat frame and back seat frame fork, regard frame well pipe as the axis, divide into front and back frame, frame head pipe and frame girder pipe T type welding, frame girder pipe tail welding has the scray, the scray is fixed in U-shaped rotor plate upper portion, be equipped with middle bumper shock absorber between U-shaped rotor plate upper portion opposite side and frame well pipe, be equipped with the rotation axis between U-shaped rotor plate bottom and the connecting plate, the connecting plate welds in frame well bottom; the rear seat frame is characterized in that a battery box is arranged in the middle tube of the frame, a lower frame fork is welded at the bottom of the middle tube of the frame, a transmission shaft is arranged at the lower frame fork at the right side of the middle tube of the frame, a fork plate is arranged at the tail of the lower frame fork, the top of the fork plate is welded and fixed with a rear seat frame support fork, the other end of the rear seat frame support fork is fixed on the battery box, a rear seat frame is arranged on the rear seat frame support fork, and a rear shock absorber is arranged between the rear seat frame and the rear seat frame support fork. The utility model discloses adopt bumper shock absorber and triangular structure more, improved holistic driving comfort level of frame and stability.

Description

Electric bicycle frame

Technical Field

The utility model relates to an electric vehicle technical field, more specifically the utility model relates to an electric bicycle frame that says so.

Background

The electric vehicle is a very popular tool for riding instead of walk in modern society, and is widely favored by simple driving operation, energy conservation and environmental protection. Most of the existing electric vehicles imitate the appearance of a motorcycle, the driving distance is long, but the vehicle body is heavy, so that the electric vehicles are not light enough for female users and inconvenient to use, and the electric vehicles are household charging electric vehicles in the market at present, if the electric vehicles are brought into the home, the electric vehicles need to be small and light in structure and can be folded at best, and the existing electric vehicle frames cannot well realize the purpose; moreover, the existing frame is mostly formed integrally, so that the shock absorption is abandoned while the shock resistance strength of the frame is improved, and the electric vehicle is in rigid connection to indirectly damage the waist and the spine of a user.

Therefore, to solve the above problems, it is an urgent need in the art to provide a frame for an electric bicycle.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an electric bicycle frame, which well solves the above problems, and the frame is divided into a front frame and a rear frame by using a frame middle tube as an axis; all be equipped with the bumper shock absorber on preceding frame and the back frame, and all be equipped with the rotation axis, can control the rotation folding, the frame is whole small and exquisite light, is applicable to various crowds, is equipped with a plurality of bumper shock absorbers, avoids rigid connection, improves driving comfort degree greatly, and partial frame is collapsible, reduces the occupation of land volume, conveniently takes home to deposit to the frame is in the design, and the triangle framework is adopted in many places, guarantees that the frame has certain stability.

In order to achieve the above object, the utility model provides a following technical scheme: a frame of an electric bicycle mainly comprises a frame head pipe, a frame main beam pipe, a frame middle pipe, a frame lower fork, a rear seat frame and a rear seat frame support fork, wherein the frame of the electric bicycle is divided into a front frame and a rear frame by taking the frame middle pipe as an axis, the front frame comprises the frame head pipe, the frame main beam pipe, a folder, a middle damper, a U-shaped rotating plate and a connecting plate, and the rear frame comprises the frame lower fork, the rear seat frame support fork, a fork plate, the rear damper and a battery box; the frame head pipe and the frame main beam pipe are welded and fixed in a T-shaped mode, the tail of the frame main beam pipe is welded with a folder, the folder is fixed to the upper portion of the U-shaped rotating plate, a middle damper is arranged between the other side of the upper portion of the U-shaped rotating plate and the frame middle pipe, a rotating shaft is arranged between the bottom of the U-shaped rotating plate and a connecting plate in a hinged mode, and the connecting plate is welded to the bottom of the frame middle pipe; the bicycle frame is characterized in that a battery box is welded in the middle of a middle tube of the bicycle frame, a lower fork of the bicycle frame is welded at the bottom of the middle tube of the bicycle frame, a transmission shaft is arranged at the lower fork of the bicycle frame on the right side, a fork plate is arranged at the tail of the lower fork of the bicycle frame, the top of the fork plate is welded and fixed with a back seat frame support fork, the other end of the back seat frame support fork is fixed on the battery box, a back seat frame is arranged on the back seat frame support fork, and a rear shock absorber is arranged between the back seat frame and the back seat frame support fork.

Preferably, in the frame of the electric bicycle, two middle dampers are arranged between the U-shaped rotating plate and the middle tube of the frame, and a triangular structure is formed between the middle dampers and the middle tube of the frame, so that the stability of the frame is ensured.

Preferably, in above-mentioned electric bicycle frame, the battery case includes bottom plate and curb plate, and the back seat frame fork is fixed in on the curb plate, and the welding is triangle-shaped between curb plate and the frame well pipe, and the battery case is bayonet battery case structure, can carry the battery and pull out, and convenience of customers charges the battery alone, tears the convenience open.

Preferably, in the electric bicycle frame, the head of the rear seat frame is hinged with the rear seat frame support fork and can rotate left and right, the rear shock absorber is arranged in the middle of the rear seat frame, a triangular structure is formed among the rear shock absorber, the rear seat frame and the rear seat frame support fork, the stability of the rear seat frame is guaranteed, the rear shock absorber is arranged, and the riding comfort of the rear seat is improved.

Preferably, in the electric bicycle frame, the frame lower fork is divided into a left side and a right side, the right side lower fork adopts a chainless design and is provided with a transmission shaft for transmission, and the battery box side plate, the frame lower fork and the rear seat frame support fork form a triangular structure together, so that the stability of the rear frame is improved.

Preferably, in the electric bicycle frame, the electric bicycle frame is made of magnesium-aluminum alloy or aluminum alloy, and is high in strength and light in weight.

Preferably, in the electric bicycle frame, the bottom of the middle tube of the frame is a welding center, a welding spot structure needs to be reinforced, and a reinforcing block can be added.

Preferably, in the electric bicycle frame, the top of the fork plate is welded and fixed with the rear seat frame support fork, and a shock absorber can be additionally arranged at the welding and fixing position, so that the shock absorption performance is improved.

According to the technical scheme, the utility model provides an electric bicycle frame compares with prior art, has abandoned frame integrated into one piece structure, adopts triangle structure and bumper shock absorber to compensate the overall stability of frame, replaces rigid connection with elasticity, has improved the user ride and has taken advantage of the comfort level, has alleviateed the whole weight of frame, conveniently carries, frame structure part is collapsible, reduce occupation space, the battery case design is bayonet, conveniently tear open and get the use of charging, wholly accord with modern crowd and use aesthetic.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is an axial side view of the present invention.

In the figure: 1. a frame head tube; 2. a frame main beam tube; 3. a frame middle tube; 4. a frame lower fork; 5. a rear seat frame; 6. a rear seat frame support fork; 7. a folder; 8. a middle damper; 9. a U-shaped rotating plate; 10. a connecting plate; 11. a fork plate; 12. a rear shock absorber; 13. a battery case; 14. a rotating shaft; 15. a drive shaft.

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.

The embodiment of the utility model discloses an electric bicycle frame, which well solves the problems existing in the existing products, and the frame is divided into a front frame and a rear frame by taking a frame middle tube as an axis; all be equipped with the bumper shock absorber on preceding frame and the back frame, and all be equipped with the rotation axis, can control the rotation folding, the frame is whole small and exquisite light, is applicable to various crowds, is equipped with a plurality of bumper shock absorbers, avoids rigid connection, improves driving comfort degree greatly, and partial frame is collapsible, reduces the occupation of land volume, conveniently takes home to deposit to the frame is in the design, and the triangle framework is adopted in many places, guarantees that the frame has certain stability.

Referring to fig. 1-3, for the utility model discloses an electric bicycle frame, specifically include: the electric bicycle frame is divided into a front frame and a rear frame by taking the frame middle tube 3 as an axis, the front frame comprises the frame head tube 1, the frame main beam tube 2, a folder 7, a middle damper 8, a U-shaped rotating plate 9 and a connecting plate 10, and the rear frame comprises the frame lower fork 4, the rear seat frame 5, the rear seat frame fork 6, a fork plate 11, a rear damper 12 and a battery box 13; the frame head pipe 1 and the frame main beam pipe 2 are welded and fixed in a T shape, the tail part of the frame main beam pipe 2 is welded with a folder 7, the folder 7 is fixed on the upper part of a U-shaped rotating plate 9, a middle damper 8 is arranged between the other side of the upper part of the U-shaped rotating plate 9 and the frame middle pipe 3, a rotating shaft 14 is arranged between the bottom of the U-shaped rotating plate 9 and a connecting plate 10 and hinged with each other, and the connecting plate 10 is welded at the bottom of the frame middle pipe 3; the middle of the frame middle tube 3 is welded with a battery box 13, the bottom of the frame middle tube is welded with a frame lower fork 4, the right frame lower fork 4 is provided with a transmission shaft 15, the tail of the frame lower fork 4 is provided with a fork plate 11, the top of the fork plate 11 is welded and fixed with a rear seat frame support fork 6, the other end of the rear seat frame support fork 6 is fixed on the battery box 13, a rear seat frame 5 is arranged on the rear seat frame support fork 6, and a rear shock absorber 12 is arranged between the rear seat frame 5 and the rear seat frame support fork 6.

Preferably, a middle damper 8 is arranged between the U-shaped rotating plate 9 and the middle tube 3 of the frame, two middle dampers 8 are arranged, a triangular structure is formed between the middle damper 8 and the middle tube 3 of the frame, and stability of the vehicle body is guaranteed.

Preferably, battery case 13 includes bottom plate and curb plate, and back seat frame fork 6 is fixed in on the curb plate, and the welding is triangle-shaped between curb plate and the frame well pipe 3, and battery case 13 is bayonet battery case structure, can carry the battery and pull out, and convenience of customers charges the battery alone, tears the convenience open.

Preferably, the head of the rear seat frame 5 is hinged with the rear seat frame support fork 6 and can rotate left and right, the rear shock absorber 12 is arranged in the middle of the rear seat frame 5, a triangular structure is formed among the rear shock absorber 12, the rear seat frame 5 and the rear seat frame support fork 6, the stability of the rear seat frame 5 is guaranteed, the rear shock absorber 12 is arranged, and the riding comfort of the rear seat is improved.

Preferably, the frame bottom fork 4 divides about, and the right side bottom fork adopts the design of no chain, is equipped with transmission shaft 15 transmission, and battery case 13 curb plate, frame bottom fork 4 and back seat frame fork 6 form the triangle-shaped structure jointly, increase the stability of back frame.

Preferably, the electric bicycle frame is made of magnesium-aluminum alloy or aluminum alloy, and is high in strength and light in weight.

Preferably, the bottom of the frame middle tube 3 is a welding center, a welding point structure needs to be reinforced, and a reinforcing block can be added.

Preferably, the top of the fork plate 11 is welded and fixed with the back seat frame support fork 6, and a shock absorber can be additionally arranged at the welding and fixing position, so that the shock absorption performance is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric bicycle frame is characterized by mainly comprising a frame head pipe, a frame main beam pipe, a frame middle pipe, a frame lower fork, a rear seat frame and a rear seat frame branch fork, wherein the electric bicycle frame is divided into a front frame and a rear frame by taking the frame middle pipe as an axis, the front frame comprises the frame head pipe, the frame main beam pipe, a folder, a middle damper, a U-shaped rotating plate and a connecting plate, and the rear frame comprises the frame lower fork, the rear seat frame branch fork, a fork plate, the rear damper and a battery box; the frame head pipe and the frame main beam pipe are welded and fixed in a T-shaped mode, the tail of the frame main beam pipe is welded with a folder, the folder is fixed to the upper portion of the U-shaped rotating plate, a middle damper is arranged between the other side of the upper portion of the U-shaped rotating plate and the frame middle pipe, a rotating shaft is arranged between the bottom of the U-shaped rotating plate and a connecting plate in a hinged mode, and the connecting plate is welded to the bottom of the frame middle pipe; the bicycle frame is characterized in that a battery box is welded in the middle of a middle tube of the bicycle frame, a lower fork of the bicycle frame is welded at the bottom of the middle tube of the bicycle frame, a transmission shaft is arranged at the lower fork of the bicycle frame on the right side, a fork plate is arranged at the tail of the lower fork of the bicycle frame, the top of the fork plate is welded and fixed with a back seat frame support fork, the other end of the back seat frame support fork is fixed on the battery box, a back seat frame is arranged on the back seat frame support fork, and a rear shock absorber is arranged between the back seat frame and the back seat frame support fork.

2. The frame of the electric bicycle according to claim 1, wherein two middle dampers are arranged between the U-shaped rotating plate and the middle tube of the frame, and a triangular structure is formed between the middle dampers and the middle tube of the frame, so that the stability of the frame is ensured.

3. The frame of the electric bicycle as claimed in claim 1, wherein the battery box comprises a bottom plate and a side plate, the rear seat frame fork is fixed on the side plate, the side plate and the middle tube of the frame are welded to form a triangle, the battery box is of a plug-in type battery box structure, the battery can be pulled out, a user can charge the battery independently, and the battery box is convenient to detach.

4. The frame for electric bicycle as claimed in claim 1, wherein the head of the rear seat frame is hinged to the fork of the rear seat frame to be rotatable left and right, the rear shock absorber is disposed at the middle of the rear seat frame, a triangular structure is formed among the rear shock absorber, the rear seat frame and the fork of the rear seat frame to ensure the stability of the rear seat frame, and the rear shock absorber is provided to improve the riding comfort of the rear seat frame.

5. The frame for electric bicycle as claimed in claim 1, wherein the lower frame fork is divided into left and right side, the right side lower fork is designed without chain, transmission shaft transmission is provided, and the battery box side plate, the lower frame fork and the rear seat frame support fork together form a triangular structure, thereby increasing the stability of the rear frame.

6. The frame for electric bicycle as claimed in claim 1, wherein the frame for electric bicycle is made of magnesium aluminum alloy or aluminum alloy, and has high strength and light weight.

7. The frame of claim 1, wherein the bottom of the middle tube of the frame is a welding center, a welding spot structure needs to be reinforced, and a reinforcing block can be added.

8. The frame for electric bicycle as claimed in claim 1, wherein the top of the fork plate is welded to the rear seat frame fork, and a shock absorber is installed at the welded position to improve shock absorption performance.