CN214084602U

CN214084602U - Two-wheel vehicle frame

Info

Publication number: CN214084602U
Application number: CN202023171926.7U
Authority: CN
Inventors: 孙木楚
Original assignee: Tailing Technology Development Co ltd
Current assignee: Tailing Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-08-31
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to a two-wheel vehicle frame, which comprises a head pipe, wherein a main beam pipe extending downwards is welded at the rear side of the middle part of the head pipe, upper side pipes are respectively arranged at two sides of the lower part of the main beam pipe, and a lower side pipe is fixedly arranged at the bottom end of the main beam pipe below the upper side pipes; the lower side pipe is of a U-shaped structure with a backward opening, the upper part of the front end of the lower side pipe is welded with the bottom end of the main beam pipe, and the rear ends of two arms of the lower side pipe are fixedly arranged on the bottom surfaces of the corresponding upper side pipes respectively; tail pipes are fixedly arranged above the rear ends of the two upper side pipes respectively, the two tail pipes are arranged left and right and extend upwards and backwards, and an upper cross beam is arranged between the rear ends of the two tail pipes; the utility model discloses a two wheeler frame has effectively increased pedal space to the overall structure frame is firm, and the lightweight, the practicality is good.

Description

Two-wheel vehicle frame

Technical Field

The utility model belongs to the technical field of the electric motor car technique and specifically relates to a two wheeler frame.

Background

The frame is a basic component of the two-wheeled electric vehicle, and other parts are installed and assembled on the basis of the frame, so that the requirement on the structural stability of the frame is high; in the prior art, the pedal space of the two-wheel vehicle is limited, and the use of a user cannot be completely met; on the other hand, as a direction of development of vehicles, weight reduction also puts higher demands on the frame structure.

SUMMERY OF THE UTILITY MODEL

The applicant provides a rational two-wheeled frame to the shortcoming in the above-mentioned prior art of production to pedal space has effectively been increased, and overall structure frame is firm, lightweight, and the practicality is good.

The utility model discloses the technical scheme who adopts as follows:

a two-wheel vehicle frame comprises a head pipe, a main beam pipe extending downwards is welded on the rear side of the middle part of the head pipe, upper side pipes are arranged on two sides of the lower part of the main beam pipe, and a lower side pipe is fixedly arranged at the bottom end of the main beam pipe below the upper side pipes; the lower side pipe is of a U-shaped structure with a backward opening, the upper part of the front end of the lower side pipe is welded with the bottom end of the main beam pipe, and the rear ends of two arms of the lower side pipe are fixedly arranged on the bottom surfaces of the corresponding upper side pipes respectively; the upper parts of the rear ends of the two upper side pipes are respectively fixedly provided with tail pipes, the two tail pipes are arranged left and right and extend upwards and backwards, and an upper cross beam is jointly arranged between the rear ends of the two tail pipes.

As a further improvement of the above technical solution:

and a middle connecting piece is arranged between the rear end of the upper side pipe and the corresponding tail pipe, and a rear bottom fork is arranged between the two middle connecting pieces.

An included angle (alpha) smaller than 90 degrees is formed between the rear end of the upper pipe and the corresponding tail pipe.

The structure of a single upper pipe is as follows: the tail pipe comprises a backward bending section, an upward tilting section and a flat section which are sequentially connected from front to back, wherein the front end of the backward bending section is fixedly installed with the side wall surface of the main beam pipe, and the tail pipe is welded above the pipe wall surface of the flat section.

The structure of a single tail pipe is as follows: the pipe joint comprises a first inclined section, a bent transition section and a second inclined section which are sequentially connected from front to back, wherein the first inclined section and the second inclined section both extend upwards and backwards, and the bottom end of the first inclined section is welded with an upper pipe; an upper beam is arranged between the two end parts of the inclined sections of the two tail pipes.

A lower beam is arranged between the rear ends of the two upper side tubes.

The head pipe inclines backwards, the upper part of the main beam pipe inclines forwards, the top end of the main beam pipe is welded with the wall surface of the head pipe, the lower part of the main beam pipe is provided with a downward vertical part, and the two upper side pipes are symmetrically welded on two sides of the vertical part; an obtuse angle is formed between the inclined part at the upper part of the main beam pipe and the vertical part at the lower part of the main beam pipe.

The outer wall surface of the upper cross beam is welded with a rear bent pipe, the rear bent pipe is of a U-shaped structure with a forward opening, and the ends of two arms of the rear bent pipe are respectively welded on the upper cross beam.

The utility model has the advantages as follows:

the utility model has compact and reasonable structure and convenient operation, effectively increases the front-back distance of the pedal space between the main beam pipe and the tail pipe through the structure that the tail pipe is welded at the rear end part of the upper pipe, and can meet the requirements of users; on the other hand, the existence of lower edge pipe when promoting the whole steadiness of frame, the mode of welding in upper edge socle face is divided to the both arms end of its U type, has effectively reduced the quantity of frame whole material, has realized the lightweight, and the practicality is good.

The utility model discloses still include following advantage:

the main beam pipe, the upper side pipes on two sides, the tail pipes on two sides, the upper cross beam and the lower side pipes form a frame whole body of a frame structure together, the structure is simple and compact, and the stability is good; the existence of the middle connecting piece between the upper side pipe and the tail pipe plays a role in reinforcing the frame structure, and meanwhile, the middle connecting piece is also used for installing the rear bottom fork;

the frame formed by the tail pipes at two sides, the upper cross beam and the rear bent pipe is convenient for direct welding and installation of a subsequent new frame, mold opening is not needed again, and use flexibility is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is an installation schematic diagram between the upper pipe and the tail pipe of the present invention.

Fig. 5 is the installation schematic diagram of the rear bottom fork on the middle connecting piece of the present invention.

Wherein: 1. a head pipe; 2. a main beam pipe; 3. an upper edge tube; 4. a lower edge tube; 5. a tail pipe; 6. an upper cross beam; 7. back bending the pipe; 8. a middle connecting piece; 9. a lower cross beam; 10. a rear bottom fork; 31. a backward curved section; 32. an upwardly inclined section; 33. a straight section; 51. a first inclined section; 52. bending the transition section; 53. and a second inclined section.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the two-wheel vehicle frame of the embodiment comprises a head pipe 1, a main beam pipe 2 extending downwards is welded on the rear side of the middle part of the head pipe 1, upper side pipes 3 are symmetrically arranged on two sides of the lower part of the main beam pipe 2, and a lower side pipe 4 is fixedly arranged at the bottom end of the main beam pipe 2 below the upper side pipes 3; the lower side pipe 4 is of a U-shaped structure with a backward opening, the upper part of the front end of the lower side pipe 4 is welded with the bottom end of the main beam pipe 2, and the rear ends of two arms of the lower side pipe 4 are fixedly arranged on the bottom surfaces of the corresponding upper side pipes 3 respectively; the upper parts of the rear ends of the two upper side pipes 3 are respectively fixedly provided with tail pipes 5, the two tail pipes 5 are symmetrically arranged and extend upwards and backwards, and an upper cross beam 6 is arranged between the rear ends of the two tail pipes 5.

As shown in fig. 2, a middle connector 8 is installed between the rear end of the upper side pipe 3 and the corresponding tail pipe 5, the middle connector 8 is located behind the tail pipe 5, the middle connector 8 between the upper side pipe 3 and the tail pipe 5 plays a role in reinforcing the frame structure, and the middle connector 8 is also used for installing a rear bottom fork 10; the middle connector 8 is in one of a tubular or plate-shaped structure; a rear fork 10 is mounted between the two middle connecting pieces 8, as shown in fig. 5.

The rear end of the upper pipe 3 and the corresponding tail pipe 5 form an included angle alpha smaller than 90 degrees, as shown in fig. 4.

As shown in fig. 3, the structure of the single upper pipe 3 is: the pipe joint comprises a backward bending section 31, an upward inclined section 32 and a straight section 33 which are sequentially connected from front to back, wherein the front end of the backward bending section 31 is fixedly installed with the side wall surface of a main beam pipe 2, and a tail pipe 5 is welded above the pipe wall surface of the straight section 33.

The structure of a single tail pipe 5 is as follows: the pipe joint comprises a first inclined section 51, a bent transition section 52 and a second inclined section 53 which are sequentially connected from front to back, wherein the first inclined section 51 and the second inclined section 53 both extend upwards and backwards, and the bottom end of the first inclined section 51 is welded with the upper pipe 3; an upper cross beam 6 is arranged between the end parts of the two inclined sections 53 of the two tail pipes 5.

A lower beam 9 is arranged between the rear ends of the two upper side pipes 3.

The head pipe 1 inclines backwards, the upper part of the main beam pipe 2 inclines forwards, the top end of the main beam pipe is welded with the wall surface of the head pipe 1, the lower part of the main beam pipe 2 is provided with a downward vertical part, and the two upper side pipes 3 are symmetrically welded at two sides of the vertical part; the inclined portion of the upper portion of the girder tube 2 forms an obtuse angle with the vertical portion of the lower portion.

A rear elbow 7 is welded on the outer wall surface of the upper cross beam 6, the rear elbow 7 is of a U-shaped structure with a forward opening, and the end heads of two arms of the rear elbow 7 are respectively welded on the upper cross beam 6; the frame consisting of the tail pipes 5 at two sides, the upper cross beam 6 and the rear bent pipe 7 is convenient for direct welding and installation of a subsequent new frame without re-opening the die, thereby improving the use flexibility.

In this embodiment, the upper and

lower cross members

6 and 9 may be one of a tubular structure, a cylindrical structure, or a plate-like structure.

In the utility model, the problem of limited distance caused by the forming of a single pipe is avoided by welding the tail pipe 5 at the rear end part of the upper pipe 3, the front-back distance of the pedal space between the main beam pipe 2 and the tail pipe 5 is effectively increased, and the user demand can be further met;

on the other hand, the lower side tube 4 improves the overall stability of the frame, and the U-shaped two arm ends are welded on the bottom surface of the upper side tube 3, so that the using amount of the overall frame material is effectively reduced, and the light weight is realized;

the utility model discloses in, girder pipe 2, both sides pipe 3, both sides tail pipe 5, entablature 6 and lower limit pipe 4 constitute frame construction's frame wholly jointly, simple structure is compact, and the steadiness is good.

The utility model discloses simple structure is ingenious reasonable, when guaranteeing frame overall structure frame stability, has effectively increased pedal space to realized the frame lightweight, the practicality is good.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. A two-wheel vehicle frame is characterized in that: the pipe joint comprises a head pipe (1), a main beam pipe (2) extending downwards is welded on the rear side of the middle part of the head pipe (1), upper side pipes (3) are arranged on two sides of the lower part of the main beam pipe (2), and a lower side pipe (4) is fixedly arranged at the bottom end of the main beam pipe (2) below the upper side pipes (3); the lower side pipe (4) is of a U-shaped structure with a backward opening, the upper part of the front end of the lower side pipe (4) is welded with the bottom end of the main beam pipe (2), and the rear ends of two arms of the lower side pipe (4) are fixedly arranged on the bottom surfaces of the corresponding upper side pipes (3) respectively; tail pipes (5) are fixedly arranged above the rear ends of the two upper side pipes (3) respectively, the two tail pipes (5) are arranged left and right and extend upwards and backwards, and an upper cross beam (6) is arranged between the rear ends of the two tail pipes (5) together.

2. A two wheel vehicle frame as claimed in claim 1, wherein: and a middle connecting piece (8) is arranged between the rear end of the upper side pipe (3) and the corresponding tail pipe (5), and a rear bottom fork (10) is arranged between the two middle connecting pieces (8).

3. A two wheel vehicle frame as claimed in claim 1, wherein: an included angle (alpha) smaller than 90 degrees is formed between the rear end of the upper side pipe (3) and the corresponding tail pipe (5).

4. A two wheel vehicle frame as claimed in claim 3, wherein: the structure of a single upper pipe (3) is as follows: the pipe joint comprises a backward bending section (31), an upward inclined section (32) and a flat section (33) which are sequentially connected from front to back, wherein the front end of the backward bending section (31) is fixedly installed with the side wall surface of a main beam pipe (2), and a tail pipe (5) is welded above the pipe wall surface of the flat section (33).

5. A two wheel vehicle frame as claimed in claim 3, wherein: the structure of a single tail pipe (5) is as follows: the pipe joint comprises a first inclined section (51), a bent transition section (52) and a second inclined section (53) which are sequentially connected from front to back, wherein the first inclined section (51) and the second inclined section (53) both extend upwards and backwards, and the bottom end of the first inclined section (51) is welded with an upper side pipe (3); an upper beam (6) is arranged between the end parts of the two inclined sections (53) of the two tail pipes (5).

6. A two wheel vehicle frame as claimed in claim 1, wherein: a lower beam (9) is arranged between the rear ends of the two upper side pipes (3).

7. A two wheel vehicle frame as claimed in claim 1, wherein: the head pipe (1) inclines backwards, the upper part of the main beam pipe (2) inclines forwards, the top end of the main beam pipe is welded with the wall surface of the head pipe (1), the lower part of the main beam pipe (2) is provided with a downward vertical part, and the two upper side pipes (3) are symmetrically welded on two sides of the vertical part; an obtuse angle is formed between the inclined part at the upper part of the main beam pipe (2) and the vertical part at the lower part of the main beam pipe.

8. A two wheel vehicle frame as claimed in claim 1, wherein: the outer wall surface of the upper cross beam (6) is welded with a rear elbow (7), the rear elbow (7) is of a U-shaped structure with a forward opening, and the ends of two arms of the rear elbow (7) are respectively welded on the upper cross beam (6).