CN217456226U

CN217456226U - Frame of electric bicycle and electric bicycle with same

Info

Publication number: CN217456226U
Application number: CN202220328394.3U
Authority: CN
Inventors: 蒋榆波; 董增凯; 肖建明; 陈亚明; 张正国
Original assignee: Nine Intelligent Changzhou Tech Co Ltd
Current assignee: Nine Intelligent Changzhou Tech Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-09-20
Anticipated expiration: 2032-02-17
Also published as: CN218022006U

Abstract

The embodiment of the utility model provides an electric bicycle's frame and have its electric bicycle. This electric bicycle's frame, including single tube main part and seat bucket bearing structure, seat bucket bearing structure sets up on the single tube main part to a seat bucket for installing electric bicycle is formed with integrative shock attenuation suspension connection structure on the seat bucket bearing structure. The frame is lower in weight and simpler in structure, so that the production cost can be reduced, and more abundant accessories or batteries with larger capacity can be configured under the condition that the weight standard is not exceeded, so that the using effect of the electric bicycle is better.

Description

Frame of electric bicycle and electric bicycle with same

Technical Field

The utility model relates to the technical field of mechanical equipment, especially, relate to an electric bicycle's frame and have its electric bicycle.

Background

The frame structure of the existing electric bicycle is complicated, the weight is heavy, and generally 8-10 kg is adopted. Because the national standard has strict regulations on the weight of the whole electric bicycle, the weight of the whole electric bicycle cannot exceed 55kg, and under the limitation, because the weight of the frame is heavy, a battery or other components with larger capacity are difficult to arrange, and the endurance of the electric bicycle is limited. In addition, the existing frame has a complex structure, so that the manufacturing cost is higher and the resources are wasted.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the embodiment of the present invention provides an electric bicycle frame and an electric bicycle having the same, so as to solve at least the problem of complex structure of the existing frame.

One or more embodiments of the utility model provide an electric bicycle's frame, it includes single tube main part and seat bucket bearing structure, and seat bucket bearing structure sets up in the single tube main part to a seat bucket for installing electric bicycle is formed with integrative shock attenuation suspension connection structure on the seat bucket bearing structure.

Optionally, the single pipe main body comprises a main body transverse pipe section, a first longitudinal pipe section and a second longitudinal pipe section, the main body transverse pipe section is located between the first longitudinal pipe section and the second longitudinal pipe section, an included angle is formed between a center line of the first longitudinal pipe section and a center line of the second longitudinal pipe section relative to a center line of the main body transverse pipe section, and the seat barrel supporting structure is connected to one end, far away from the main body transverse pipe section, of the second longitudinal pipe section.

Optionally, the seat tub support structure comprises: the connecting rod is connected to the single tube main body; the mounting arm group comprises at least two mounting arms, the two ends of the connecting rod are respectively provided with the mounting arms, and mounting holes serving as shock absorption suspension connecting structures are formed in the mounting arms.

Optionally, the mounting arm is arc-shaped, the arc-shaped having a first end and a second end, the mounting hole being provided at the first end of the arc-shaped, the connecting rod being connected between the first end and the second end.

Optionally, the seat pan support structure further comprises a seat pan carrier plate connected to the second end of the mounting arm.

Optionally, a bottom bracket is arranged on the main body horizontal pipe section, and the bottom bracket is used for bearing the seat barrel.

Optionally, a rear bottom fork mounting structure is arranged on the second longitudinal pipe section, and the rear bottom fork mounting structure is used for being connected with a rear bottom fork of the electric bicycle.

Optionally, the frame still includes handlebar mounting bracket and limit structure, and the handlebar mounting bracket setting is on first vertical pipe section, and the handlebar mounting bracket is used for being connected with the handlebar, and limit structure supports between handlebar mounting bracket and single pipe main part.

Optionally, the frame further comprises a pedal mounting structure disposed on the main body cross tube section and configured to be connected with a pedal of the electric bicycle.

According to another aspect of the application, provide an electric bicycle's frame, including single tube main part, handlebar mounting bracket and limit structure, the handlebar mounting bracket is connected in the single tube main part, and is used for installing electric bicycle's front fork, and limit structure supports between handlebar mounting bracket and single tube main part, and limit structure has the spacing portion that is located handlebar mounting bracket both sides, and spacing portion is used for backstop to the front fork to inject the turned angle of front fork.

Optionally, limit structure includes: the front stop piece is fixedly connected to the handlebar mounting frame, a first part of the front stop piece protrudes from one side of the handlebar mounting frame to form a limiting part, and a second part of the front stop piece protrudes from the other side of the handlebar mounting frame to form another limiting part; and the side supporting piece is connected with the front stop piece and is connected to the single pipe main body.

According to another aspect of the present application, there is provided an electric bicycle comprising a frame as described above and a wheel connected to the frame.

In this embodiment, this frame uses the single tube main part to support, under the condition that satisfies electric bicycle's intensity and rigidity demand, remove the limit pipe, thereby make the structure of frame simplify more, with this structure complexity that reduces the frame, and reduce the weight of frame, be provided with seat bucket bearing structure in the single tube main part, and be formed with the shock attenuation of an organic whole with it on the seat bucket bearing structure and hang connection structure, thereby avoided needing extra welding leg joint absorbing to hang, the structure complexity and the weight of frame have been reduced from this, thereby make the electric bicycle who uses this frame can set up bigger battery under the condition that satisfies the total weight requirement, perhaps can increase other accessories.

Drawings

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

FIG. 1 provides a perspective view of a vehicle frame according to an embodiment of the present application;

FIG. 2 provides a perspective view of another vehicle frame according to an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of the frame of FIG. 2 at a restraint feature;

FIG. 4 is a partial enlarged view of the bottom bracket mounting structure of the frame of FIG. 2;

FIG. 5 is an enlarged, fragmentary view of the rear fork mounting structure of the frame of FIG. 2;

FIG. 6 is an enlarged view of a portion of the frame of FIG. 2 at the tub carrier deck.

10. A single tube body; 11. a main body transverse tube section; 111. a five-way pipe mounting structure; 112. a rear bottom fork mounting structure; 113. a pedal mounting structure; 115. a connecting plate; 12. a first longitudinal tube section; 121. a handlebar mounting bracket; 122. a limiting structure; 122a, a limiting part; 13. a second longitudinal tube section; 20. a seat bucket support structure; 21. a connecting rod; 22. mounting an arm; 23. a seat barrel bearing plate; 30. a shock absorbing suspension connection structure; 40. a five-way pipe; 50. seat bucket installing support.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. 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 application provides a frame of electric bicycle. The frame comprises a single pipe body 10 and a seat barrel supporting structure 20, wherein the seat barrel supporting structure 20 is arranged on the single pipe body 10 and used for installing a seat barrel of the electric bicycle, and an integrated damping suspension connecting structure 30 is formed on the seat barrel supporting structure 20. This frame uses single tube main part 10 to support, under the condition that satisfies electric bicycle's intensity and rigidity demand, remove the limit pipe, thereby make the structure of frame simplify more, with this structure complexity that reduces the frame, and reduce the weight of frame, be provided with seat bucket bearing structure 20 on single tube main part 10, and be formed with the shock attenuation of an organic whole with it on the seat bucket bearing structure 20 and hang connection structure 30, thereby avoided needing extra welding leg joint absorbing to hang, the structure complexity and the weight of frame have been reduced from this, thereby make the electric bicycle who uses this frame can set up bigger battery under the condition that satisfies the total weight requirement, or can increase other accessories.

As shown in fig. 1, the frame of the embodiment can be used as a basic framework of a chassis platform of a national standard electric bicycle, meets the structural strength requirement of a frame with a medium or large volume in the national standard, and omits edge pipes under the condition of ensuring the overall strength and rigidity of the frame, thereby reducing the weight of the frame. Technical prejudice exists in the art which prevents the reduction of the side tubes of the frame by the person skilled in the art and which is overcome in the present embodiment.

As shown in fig. 1, the monotube body 10 comprises a main body transverse section 11, a first longitudinal section 12 and a second longitudinal section 13, the main body transverse section 11 is located between the first longitudinal section 12 and the second longitudinal section 13, an included angle is formed between the central line of the first longitudinal section 12 and the central line of the second longitudinal section 13 relative to the central line of the main body transverse section 11, and a seat barrel supporting structure 20 is connected to one end of the second longitudinal section 13 far away from the main body transverse section 11. The single-tube body 10 with such a structure ensures structural strength and rigidity, thereby ensuring the reliability of the entire frame.

The transverse body section 11, the first longitudinal section 12 and the second longitudinal section 13 of the monotube body 10 are integrally formed, so that the structural strength and rigidity of the monotube body 10 can be effectively improved.

In one embodiment, as shown in fig. 1, the cross-sectional shape of the body transverse section 11, the first longitudinal section 12 and the second longitudinal section 13 is circular, and the center line thereof may be a line connecting the centers of the circles. The first longitudinal pipe section 12 is used for mounting a handlebar and the like, and the second longitudinal pipe section 13 is used for mounting a seat and the like.

In this embodiment, the seat barrel supporting structure 20 comprises a connecting rod 21 and a mounting arm set to meet the bearing requirements of the seat barrel. The connecting rod 21 is connected to the single pipe body 10; the mounting arm group comprises at least two mounting arms 22, the two ends of the connecting rod 21 are respectively provided with the mounting arms 22, and the mounting arms 22 are provided with mounting holes serving as shock absorption suspension connecting structures 30.

The connecting rod 21 may be fixed to the second longitudinal section 13 by welding or screwing. The mounting arm 22 is fixed to an end of the connecting rod 21, and a mounting hole is provided on the mounting arm 22 as a shock-absorbing suspension connection structure 30 to connect a shock absorber. Through set up the mounting hole on installation arm 22, hang the shock attenuation to realize that the shock attenuation hangs the direct setting of point on the mounting hole of installation arm 22, need not weld the support alone, with this whole weight that reduces the frame, simplify its structure.

In addition, the shock-absorbing suspension connection structure 30 can also be used as a mounting point of a rear shelf of the electric bicycle, thereby realizing multifunctional use of one structure, and further making the structure simpler and lighter.

Optionally, to facilitate mounting shock absorption and to enable support of the seat barrel, the mounting arm 22 is arc-shaped having a first end and a second end, the mounting hole is provided at the first end of the arc-shape, and the connecting rod 21 is connected between the first end and the second end.

Optionally, the seat tub support structure 20 further includes a seat tub carrier plate 23, the seat tub carrier plate 23 being connected with the second end of the mounting arm 22. The seat barrel can be reliably supported by arranging the seat barrel bearing plate 23.

Optionally, in order to facilitate the installation of the bottom bracket, a bottom bracket mounting structure 111 and/or a seat barrel mounting bracket (not shown in the drawings) are provided on the main body horizontal tube section 11, and the bottom bracket mounting structure 111 is used for connecting with a bottom bracket (also called a bottom bracket) of the electric bicycle. The seat barrel lower mounting bracket is used for bearing the seat barrel so as to support the seat barrel.

As shown in fig. 1, the five-way pipe mounting structure 111 includes two transverse plates and two vertical plates, the two vertical plates are fixed on the main body transverse pipe section 11, the transverse plates are connected between the vertical plates, and a groove is provided on the vertical plates between the two transverse plates, so as to implement the mounting of the five-way pipe and the seat barrel.

Optionally, a rear fork mounting structure 112 is disposed on the second longitudinal tube section 13, and the rear fork mounting structure 112 is configured to be connected to a rear fork of the electric bicycle.

In this embodiment, the rear fork mounting structure 112 includes a mounting barrel that is attached to the monotube body.

With continued reference to fig. 1, the rear bottom fork mounting structure 112 in this embodiment is located at a transition portion between the second longitudinal pipe section 13 and the main body transverse pipe section 11, the transition portion is an arc pipe portion formed by bending, and in order to further improve the structural strength of the transition portion, a connecting plate is provided on the transition portion, and the connecting plate extends along the transition portion, so that on one hand, the structural strength of the transition portion can be improved, and on the other hand, a mounting position can be provided for a mounting barrel of the rear bottom fork mounting structure 112, and the mounting barrel can be assembled more easily.

In addition, the connecting plate can also regard as other structures (like the mounting point of well stay), can simplify the structure like this, realizes the multiplexing of connecting plate, and then under the condition that does not reduce structural strength, effectively reduces weight, and promotes the utilization ratio of connecting plate.

Optionally, in order to be able to reliably mount and carry the handlebars, the frame further comprises a handlebar mounting frame 121 and a limiting structure 122, the handlebar mounting frame 121 being arranged on the first longitudinal pipe section 12, the handlebar mounting frame 121 being intended to be connected to the handlebars, the limiting structure 122 being supported between the handlebar mounting frame 121 and the mono-pipe body 10.

For example, handlebar mounting bracket 121 includes a support cylinder disposed at the end of first longitudinal tube section 12 to carry a handlebar. Be connected with limit structure 122 on handlebar mounting frame 121, limit structure 122 supports between handlebar mounting frame 121 and single tube main part 10 to can effectively consolidate handlebar mounting frame 121, thereby promote the structural strength and the reliability of whole frame.

In addition, the stopper structure 122 may protrude from both sides of the handlebar mounting frame 121 to form a stopper portion 122a, and the stopper portion 122a may stop the front fork of the electric bicycle when it rotates, thereby achieving an effect of limiting the rotation angle thereof.

Optionally, the frame further comprises a pedal mounting structure 113, the pedal mounting structure 113 being disposed on the body cross section 11 and being for connection with a pedal of the electric bicycle. For example, the pedal mounting structure 113 is provided on the main body cross pipe section 11 and extends in a direction perpendicular to the center line of the main body cross pipe section 11.

The frame adopts a single-tube structure, so that the structure is simple, the weight is light, the weight can be reduced by 20-40% compared with the frame adopting a polygonal tube structure, and the five-way tube can be detachably connected with the five-way tube mounting structure 111 or welded and connected with the five-way tube mounting structure 111. The frame is simple in structure, the shock absorption hanging point and the seat barrel supporting structure are integrated, the weight is reduced, and the whole space is occupied less.

As shown in fig. 2, according to another aspect of the present application, there is provided a frame of an electric bicycle, which includes a single pipe body 10, a handle bar mounting frame 121 and a limiting structure 122, the handle bar mounting frame 121 is connected to the single pipe body 10 and is used for mounting a front fork of the electric bicycle, the limiting structure is supported between the handle bar mounting frame 121 and the single pipe body 10, and the limiting structure has limiting portions 122a located at both sides of the handle bar mounting frame 121 and used for stopping the front fork to limit a rotation angle of the front fork.

This single tube main part 10 removes the limit pipe as the main support under the condition that satisfies electric bicycle's intensity and rigidity demand to make the structure of frame more simplified, with this structural complexity who reduces the frame, and reduce the weight of frame. The handlebar mounting frame 121 (which may also be referred to as a head pipe) provided on the single pipe body 10 may be used to mount a front fork of the electric bicycle, so that the front fork can rotate relative to the handlebar mounting frame 121, thereby achieving steering of the electric bicycle. In order to limit the steering angle, a limiting structure 122 is arranged between the handlebar mounting frame 121 and the single pipe body 10, and the limiting structure 122 is supported between the single pipe body 10 and the handlebar mounting frame 121, so that the handlebar mounting frame 121 can be reliably supported, the structural strength and the stability are improved, and the limiting parts 122a of the limiting structure 122 extending out of the two sides of the handlebar mounting frame 121 can effectively stop the front fork, so that the rotation angle of the front fork can be effectively limited.

Because the triangular support form that stability and reliability are all better is formed between handlebar mounting frame 121, limit structure 122 and single tube main part 10, not only promoted handlebar mounting frame 121's steadiness, also promoted limit structure 122's itself wear-resisting, resistant collision ability, fully prolonged life, increased the reliability.

As shown in fig. 3, in one example, the limit structure 122 includes a front stop and side supports. The front stopper is fixedly coupled to the handlebar mounting frame 121, and a first portion of the front stopper protrudes from one side of the handlebar mounting frame 121 to form a stopper portion 122a, and a second portion of the front stopper protrudes from the other side of the handlebar mounting frame 121 to form another stopper portion 122 a. The side supporter is connected to the front stopper and to the single pipe body 10.

Preceding stop piece and side support piece can integrated into one piece, make limit structure whole have better structural reliability like this, preceding stop piece fixed connection on handlebar mounting frame 121, side support piece fixed connection is on single tube main part 10 to limit structure 122 can be reliably fixed, and effectively supports handlebar mounting frame 121.

Of course, the front stop and the side support may be separately processed and then connected by welding or the like, which is not limited thereto.

As shown in fig. 4, the structure of the single pipe body 10 may be the same as or similar to that of the previous example (i.e., the example shown in fig. 1), and thus, a detailed description thereof will be omitted. Be provided with five-way pipe mounting structure 111 and seat bucket installing support 50 on the main part horizontal tube section 11 of single tube main part 10, can dismantle the connection between seat bucket installing support 50 and the five-way pipe mounting structure 111 to satisfy the demand of different motorcycle types, make adaptability stronger.

As shown in fig. 4, a bottom bracket 40 (also called a middle shaft) is fixedly connected to the seat barrel mounting bracket 50, and the bottom bracket 40 is placed in a groove of the bottom bracket mounting structure 111.

Other structures of the frame can be the same as those of the frame in the previous aspect, and therefore, the description is omitted. The handlebar mounting frame 121 and the limiting structure 122 of the frame for steering can improve the strength of the handlebar mounting frame 121, thereby improving the safety.

As shown in fig. 5, the frame of the present embodiment is provided with a rear bottom fork mounting structure 112, the rear bottom fork mounting structure 112 is located at a transition portion between the second longitudinal pipe section 13 and the main body transverse pipe section 11, the transition portion is an arc pipe portion formed by bending, in order to further enhance the structural strength of the transition portion, a connecting plate 115 is provided on the transition portion, and the connecting plate 115 extends along the transition portion, so that on one hand, the structural strength of the transition portion can be enhanced, and on the other hand, a mounting position can be provided for a mounting barrel of the rear bottom fork mounting structure 112, so that the mounting barrel can be assembled more easily.

As shown in fig. 6, optionally, in order to facilitate installation of shock absorption and support of the seat barrel, the installation arm 22 is an arc shape having a first end and a second end, the installation hole is provided at the first end of the arc shape, and the connection rod 21 is connected between the first end and the second end.

It should be noted that, the structures in the vehicle frame in the foregoing two aspects may be combined with each other, and this is not limited.

According to another aspect of the present application, there is provided an electric bicycle comprising a frame as described above and a wheel connected to the frame. This electric bicycle's simple structure can reduction in production and research and development cost to save the resource, and under the circumstances of guaranteeing to satisfy national standard car overall weight requirement, can dispose the battery of bigger electric quantity, also can increase other more accessories, thereby make electric bicycle's function abundanter. The frame is simple in structure, low in cost, capable of saving resources, universal and capable of reducing production cost.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components or names, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be noted that, although the specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention should not be construed as limited to the scope of the present invention. Various modifications and changes may be made by those skilled in the art without inventive work within the scope of the present invention as described in the claims.

The examples of the embodiment of the present invention are intended to concisely illustrate the technical features of the embodiments of the present invention, so that a person skilled in the art can visually understand the technical features of the embodiments of the present invention, and do not act as an improper limitation of the embodiments of the present invention.

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 it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The frame of the electric bicycle is characterized by comprising a single pipe main body (10) and a seat barrel supporting structure (20), wherein the seat barrel supporting structure (20) is arranged on the single pipe main body (10) and used for installing a seat barrel of the electric bicycle, and an integrated damping suspension connecting structure (30) is formed on the seat barrel supporting structure (20).

2. The frame of the electric bicycle according to claim 1, characterized in that the monotube body (10) comprises a body transverse tube section (11), a first longitudinal tube section (12) and a second longitudinal tube section (13), the body transverse tube section (11) is located between the first longitudinal tube section (12) and the second longitudinal tube section (13), an included angle is formed between a center line of the first longitudinal tube section (12) and a center line of the second longitudinal tube section (13) relative to a center line of the body transverse tube section (11), and the seat barrel supporting structure (20) is connected to one end of the second longitudinal tube section (13) far away from the body transverse tube section (11).

3. Frame for an electric bicycle according to claim 1 or 2, characterized in that said seat-tub supporting structure (20) comprises:

a connecting rod (21), the connecting rod (21) being connected to the single pipe body (10);

the installation armset, the installation armset includes two at least installation arms (22), the both ends of connecting rod (21) are provided with respectively installation arm (22), be provided with on installation arm (22) and regard as the mounting hole of shock attenuation suspension connection structure (30).

4. The frame of the electric bicycle according to claim 3, characterized in that the mounting arm (22) is arc-shaped having a first end and a second end, the mounting hole being provided at the first end of the arc-shape, the connecting rod (21) being connected between the first end and the second end.

5. The frame of an electric bicycle according to claim 4, characterized in that the seat-tub support structure (20) further comprises a seat-tub carrier plate (23), the seat-tub carrier plate (23) being connected with the second end of the mounting arm (22).

6. The frame of the electric bicycle as claimed in claim 2, wherein the main body cross pipe section (11) is provided with a five-way pipe mounting structure (111), the five-way pipe mounting structure (111) is used for being connected with a five-way pipe of the electric bicycle and a seat barrel lower mounting bracket, and the seat barrel lower mounting bracket is used for bearing a seat barrel.

7. The frame of the electric bicycle according to claim 2, characterized in that a rear fork mounting structure (112) is provided on the second longitudinal tube section (13), the rear fork mounting structure (112) being adapted to be connected with a rear fork of the electric bicycle.

8. Frame of an electric bicycle according to claim 2, characterized in that it further comprises a handlebar mounting frame (121) and a limiting structure (122), said handlebar mounting frame (121) being provided on said first longitudinal tube section (12), said handlebar mounting frame (121) being intended to be connected with a handlebar, said limiting structure (122) being supported between said handlebar mounting frame (121) and said monotube body (10).

9. The frame of the electric bicycle according to claim 2, characterized in that the frame further comprises a pedal mounting structure (113), the pedal mounting structure (113) being provided on the main body cross tube section (11) and being adapted to be connected with a pedal of the electric bicycle.

10. The frame of an electric bicycle according to claim 8, characterized in that the limit structure (122) comprises:

a front stopper fixedly attached to the handlebar mounting frame (121), a first portion of the front stopper protruding from one side of the handlebar mounting frame (121) to form a stopper portion (122a), and a second portion of the front stopper protruding from the other side of the handlebar mounting frame (121) to form another stopper portion (122 a);

a side supporter connected with the front stopper and connected to the monotube main body (10).

11. An electric bicycle, characterized by comprising a frame according to any one of claims 1-10 and a wheel connected to the frame.