CN216401644U

CN216401644U - Electric bicycle frame

Info

Publication number: CN216401644U
Application number: CN202122666497.9U
Authority: CN
Inventors: 阮积聪
Original assignee: Taizhou Xiaowen Intelligent Technology Co ltd
Current assignee: Taizhou Xiaowen Intelligent Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-29
Anticipated expiration: 2031-10-29

Abstract

The utility model provides an electric bicycle frame, and belongs to the technical field of electric bicycle main frames. The five-way pipe solves the problems that the outer wall of the existing five-way pipe is welded with the third connecting pipe part to be fixedly connected, and the mechanical strength of the structure is low. This electric bicycle frame, including main frame and auxiliary frame, auxiliary frame sets up the top at main frame, be provided with the connecting block between main frame and the auxiliary frame, this main frame and auxiliary frame link to each other through the connecting block and form spatial structure, horizontal pole one and horizontal pole two that have horizontal parallel interval distribution on the main frame, the bridge of crossing that has perpendicular setting between horizontal pole one and the horizontal pole two, the bridge of crossing is used for fixed five-way, be provided with the fixing device who makes the bridge of crossing stably to connect between horizontal pole one and horizontal pole two between bridge and main frame. The five-way connecting device is reasonable and simple in structural design, the mechanical strength of the five-way connecting device at the fixed position of the bridge can be effectively improved through the support of the extension plate and the connecting plate, the structural stability is high, and the service life is long.

Description

Electric bicycle frame

Technical Field

The utility model belongs to the technical field of electric vehicle main frames, and relates to an electric bicycle frame.

Background

The structure of the existing electric bicycle frame is as follows: "202020145491. X" entitled bulletin number: CN211766067U discloses a shock-absorbing structure and a storage structure for electric bicycle frame, its specific structure is: including the head tube, frame front beam, frame rear beam, frame folding module, well pipe, No. four connecting tubes, No. three connecting tubes, five-way, the horizontal return bend, the storing box, right rocking arm, left rocking arm, right spring module and left spring module, the preceding terminal surface of head tube and frame folding module is connected respectively to the both ends of frame front beam, the rear end face and the well pipe of frame folding module are connected respectively to the both ends of frame rear beam, the upper portion of well pipe is through No. one connecting tube and No. two connecting tube connection horizontal return bends, the lower part of well pipe is equipped with No. three connecting tubes, and through No. three connecting tube connection five-way, be equipped with No. four connecting tubes between frame rear beam bottom and the five-way, No. four connecting tubes, five-way, form one between No. three connecting tubes and the well pipe and place the storing box.

In the structure, the five-way pipe and the third connecting pipe are fixedly connected in a welding mode, the five-way pipe and the third connecting pipe are fixedly connected in a partially welding mode through the outer wall of the five-way pipe and the third connecting pipe, the structure is low in mechanical strength, poor in stability and short in service life.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides the electric bicycle frame which is simple in structure, high in mechanical strength, good in stability and long in service life.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides an electric bicycle frame, includes main frame and auxiliary frame, auxiliary frame set up the top at main frame, main frame and auxiliary frame between be provided with the connecting block, this main frame and auxiliary frame link to each other through the connecting block and form spatial structure, its characterized in that, main frame on have horizontal pole one and horizontal pole two of horizontal parallel interval distribution, horizontal pole one and horizontal pole two between have the perpendicular bridge of crossing that sets up, the bridge of crossing be used for fixed five-way, the bridge of crossing be provided with between bridge and the main frame and make the bridge of crossing stably connect between horizontal pole one and horizontal pole two fixing device.

This electric bicycle frame mainly sets up fixing device between bridge girder and the main frame, can effectively improve the bridge through fixing device and connect between horizontal pole one and horizontal pole two, increases the mechanical strength that the bridge links firmly, and the mechanical strength that should cross the bridge is high, causes five-way fixed stable in structure on the bridge, long service life.

In the frame of the electric bicycle, the fixing device comprises a foot support seat, the foot support seat is obliquely and fixedly arranged on the main frame, an extension plate extending towards the direction of the bridge piece is arranged at the upper end of the foot support seat, the extension plate is fixedly connected with the bridge piece in a welding mode, and a supporting structure used for forming relative support with the bridge piece and the main frame is arranged on the extension plate. And the extension plate and the foot support seat which are welded and fixed with the bridge girder are fixed again, the connection strength of the bridge girder on the main frame, the first cross rod and the second cross rod is effectively improved by the foot support seat shell, the mechanical strength is high, and the structural stability is good.

In the frame of the electric bicycle, the support structure comprises support walls formed by vertically bending two edges of an extension plate upwards at the same time, the extension plate is obliquely bent and provided with a connecting plate, the connecting plate is fixedly connected with the main frame in a welding manner, and the connecting plate is positioned between the two support walls and fixedly connected with the two support walls in a welding manner. The two supporting walls, the extension plate and the connecting plate form a three-dimensional triangular shape, the supporting is used between the main frame and the bridge girder, the structural strength is high, the service life is long, the anti-collision performance is good, and deformation is not easy.

In the frame of the electric bicycle, the front end of the auxiliary frame is provided with a transverse rod III which is transversely arranged, and the transverse rod III, the transverse rod I and the transverse rod I are distributed in parallel. The purpose of the arrangement is to enable the cross rod III, the cross rod I and the cross rod II on the auxiliary frame to form the three-dimensional structure space, the mechanical strength of the structure is high, and the service life is long.

In the frame of the electric bicycle, the main pipe is fixedly connected with the front ends of the main frame and the auxiliary frame, and the front ends of the main frame and the auxiliary frame are fixedly connected with the main pipe in a welding mode respectively. This main frame and auxiliary frame and the person in charge separately weld and link firmly, and the welding department separates, can effectively improve the self mechanical strength who is responsible for, stable in structure, long service life.

In the frame of the electric bicycle, the upper end of the main pipe is provided with the obliquely arranged faucet pipe, and the faucet pipe is fixedly connected with the main pipe through the pad corner piece in a welding manner. The purpose of setting up like this can effectively improve tap pipe, be responsible for both slope welding and link firmly, and connection structure is stable.

In the frame of the electric bicycle, the rear end of the main frame is bent obliquely towards the rear upper side to form a tail part, and the outer wall of the bent part at the rear end of the main frame is fixedly connected with the hinge seat in a welding mode. Therefore, the mechanical strength of the bending part at the rear end of the main frame can be effectively improved, and the structural stability is good.

In the frame of the electric bicycle, the tail part of the rear end of the main frame is fixedly provided with the closed seat, and the closed seat is used for connecting and closing the tail part of the rear end of the main frame. The purpose of setting up like this is that can effectively improve the holistic mechanical strength of main frame, stable in structure, the resistance to deformation ability is stronger.

Compared with the prior art, the electric bicycle frame has the advantages that: structural design is reasonable, simple, can effectively improve the mechanical strength of five-way at the fixed department of bridge of passing through the support of extension board, connecting plate, and structural stability is high, long service life.

Drawings

Fig. 1 is a perspective view of the electric bicycle frame.

Fig. 2 is a perspective view of the electric bicycle frame.

In the figure, 1, a main frame; 2. an auxiliary frame; 3. connecting blocks; 4. a first cross bar; 5. a second cross bar; 6. passing through a bridge; 7. five-way connection; 8. a foot support seat; 9. an extension plate; 10. a support wall; 11. a connecting plate; 12. a cross bar III; 13. a main pipe; 14. a faucet pipe; 15. a corner fitting; 16. a tail portion; 17. a hinged seat; 18. and (4) closing the seat.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the electric bicycle frame mainly comprises a main frame 1 and an auxiliary frame 2, wherein the auxiliary frame 2 is arranged above the main frame 1, a connecting block 3 is arranged between the main frame 1 and the auxiliary frame 2, the main frame 1 and the auxiliary frame 2 are connected through the connecting block 3 to form a three-dimensional structure, a first cross rod 4 and a second cross rod 5 which are transversely distributed in parallel at intervals are arranged on the main frame 1, a bridge passing beam 6 which is vertically arranged is arranged between the first cross rod 4 and the second cross rod 5, the bridge passing beam 6 is used for fixing a five-way valve 7, and a fixing device which enables the bridge passing beam 6 to be stably connected between the first cross rod 4 and the second cross rod 5 is arranged between the bridge passing beam 6 and the main frame 1; in actual manufacturing, the specific implementation of the fixing device is as follows: the supporting device mainly comprises a supporting seat 8, wherein the supporting seat 8 is obliquely and fixedly arranged on a main frame 1, an extension plate 9 extending towards the direction of a bridge 6 is arranged at the upper end of the supporting seat 8, the extension plate 9 is fixedly connected with the bridge 6 in a welding manner, and a supporting structure for forming relative support with the bridge 6 and the main frame 1 is arranged on the extension plate 9; specifically, the specific implementation of the supporting structure is as follows: the edges of the two sides of the extension plate 9 are bent upwards to form supporting walls 10 at the same time, the extension plate 9 is bent obliquely to form a connecting plate 11, the connecting plate 11 is fixedly connected with the main frame 1 in a welding mode, and the connecting plate 11 is located between the supporting walls 10 on the two sides and fixedly connected with the supporting walls 10 on the two sides in a welding mode.

In actual manufacturing, the front end of the auxiliary frame 2 is provided with a transverse rod three 12, and the transverse rod three 12 is distributed in parallel with the transverse rods one 4 and two 5.

During actual manufacturing, the front ends of the main frame 1 and the auxiliary frame 2 are fixedly connected with a main pipe 13, and the front ends of the main frame 1 and the auxiliary frame 2 are fixedly connected with the main pipe 13 in a welding mode respectively; the upper end of the main pipe 13 is provided with a faucet pipe 14 which is obliquely arranged, and the faucet pipe 14 is fixedly connected with the main pipe 13 through a fillet piece 15 in a welding way.

During actual manufacturing, the rear end of the main frame 1 is bent obliquely backwards and upwards to form a tail part 16, and the outer wall of the bent part at the rear end of the main frame 1 is fixedly connected with a hinge seat 17 in a welding mode; the tail part 16 of the rear end of the main frame 1 is fixedly provided with a closed seat 18, and the closed seat 18 is used for connecting and closing the tail part 16 of the rear end of the main frame 1.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. An electric bicycle frame comprises a main frame (1) and an auxiliary frame (2), the auxiliary frame (2) is arranged above the main frame (1), a connecting block (3) is arranged between the main frame (1) and the auxiliary frame (2), the main frame (1) and the auxiliary frame (2) are connected through a connecting block (3) to form a three-dimensional structure, it is characterized in that the main frame (1) is provided with a first transverse rod (4) and a second transverse rod (5) which are transversely distributed in parallel at intervals, a bridge passing beam (6) is vertically arranged between the first cross bar (4) and the second cross bar (5), the cross bridge (6) is used for fixing the five-way pipe (7), and a fixing device which enables the cross bridge (6) to be stably connected between the cross rod I (4) and the cross rod II (5) is arranged between the cross bridge (6) and the main frame (1).

2. The electric bicycle frame according to claim 1, characterized in that the fixing device comprises a foot support seat (8), the foot support seat (8) is obliquely and fixedly arranged on the main frame (1), an extension plate (9) extending towards the direction of the bridge piece (6) is arranged at the upper end of the foot support seat (8), the extension plate (9) is fixedly connected with the bridge piece (6) in a welding manner, and a supporting structure for forming relative support with the bridge piece (6) and the main frame (1) is arranged on the extension plate (9).

3. An electric bicycle frame as claimed in claim 2, characterized in that the supporting structure comprises two side edges of the extension plate (9) bent upward and vertically to form supporting walls (10), the extension plate (9) is bent obliquely to form a connecting plate (11), the connecting plate (11) is welded to the main frame (1), and the connecting plate (11) is located between the two supporting walls (10) and is welded to the two supporting walls (10).

4. An electric bicycle frame as claimed in claim 3, characterised in that the front end of the auxiliary frame (2) is provided with a transverse rod three (12), and the transverse rod three (12) is distributed in parallel with the transverse rods one (4) and two (5).

5. An electric bicycle frame as claimed in claim 4, characterized in that the main tube (13) is fixedly connected to the front ends of the main frame (1) and the auxiliary frame (2), and the front ends of the main frame (1) and the auxiliary frame (2) are fixedly connected to the main tube (13) by welding.

6. The frame for electric bicycles, as set forth in claim 5, is characterized in that the upper end of the main tube (13) has a faucet tube (14) disposed obliquely, and the faucet tube (14) is fixedly connected to the main tube (13) by welding through a fillet member (15).

7. An electric bicycle frame as claimed in claim 1 or 6, characterized in that the rear end of the main frame (1) is bent obliquely to the rear and upward to form a tail portion (16), and the outer wall of the bent portion of the rear end of the main frame (1) is fixedly connected with a hinge seat (17) by welding.

8. An electric bicycle frame as claimed in claim 7, characterised in that the rear end (16) of the main frame (1) is fixedly provided with a closed seat (18), and the closed seat (18) is used for connecting and closing the rear end (16) of the main frame (1).