CN216034859U

CN216034859U - Two-wheel vehicle frame and motorcycle

Info

Publication number: CN216034859U
Application number: CN202121927805.2U
Authority: CN
Inventors: 母世才; 蒋明发; 余国洋
Original assignee: Chongqing Astronautic Bashan Motorcycle Manufacturing Co ltd
Current assignee: Chongqing Astronautic Bashan Motorcycle Manufacturing Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-15
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a frame of a two-wheel vehicle, which comprises a main beam pipe, wherein an oil tank rear mounting seat is welded at the back of the main beam pipe, and the left end and the right end of the rear side of the oil tank rear mounting seat are respectively connected with a bottom fork left upper inclined stay pipe and a bottom fork right upper inclined stay pipe; the lower end of the main beam pipe is also welded with an engine main suspension bracket, and a bottom fork left lower side pipe and a bottom fork right lower side pipe are respectively welded on two sides of the engine main suspension bracket; the other ends of the bottom fork left lower edge tube and the bottom fork left upper inclined supporting tube are welded and fixed with the bottom fork left plate; the bottom fork right lower side tube, the bottom fork right upper inclined supporting tube and the bottom fork right plate are welded and fixed; the lower end of the main suspension frame of the engine is welded with a pedal shaft seat. The utility model has simple structure, high strength and good stability, can realize the simultaneous use of the power supply of the motorcycle engine and the power assisting of the pedal of a rider, and of course, the frame of the utility model can also be applied to other two-wheeled vehicles except motorcycles and has the same effect.

Description

Two-wheel vehicle frame and motorcycle

Technical Field

The utility model relates to the field of machinery, in particular to a two-wheel vehicle frame and a motorcycle.

Background

In some mountain areas, the road has a large gradient, so that some small-displacement motorcycles cannot drive up the slope, manpower is needed for pushing, and great inconvenience is brought to drivers. In the prior art, part of electric vehicles are also provided with manpower pedals, but the electric vehicles have complex structures, poor strength and are easy to damage.

Therefore, those skilled in the art have made an effort to develop a bicycle frame and a motorcycle with a simple structure and suitable for assisting with power from a human pedal.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present invention provides a frame for a two-wheeled vehicle and a motorcycle with a simple structure and capable of assisting with manual pedaling.

In order to achieve the purpose, the utility model provides a frame of a two-wheel vehicle, which comprises a main beam pipe, wherein an oil tank rear mounting seat is welded at the back of the main beam pipe, and the left end and the right end of the rear side of the oil tank rear mounting seat are respectively connected with a bottom fork left upper inclined stay pipe and a bottom fork right upper inclined stay pipe;

the lower end of the main beam pipe is also welded with an engine main suspension bracket, and a bottom fork left lower side pipe and a bottom fork right lower side pipe are respectively welded on two sides of the engine main suspension bracket;

the other ends of the bottom fork left lower edge tube and the bottom fork left upper inclined supporting tube are welded and fixed with the bottom fork left plate; the bottom fork right lower side tube, the bottom fork right upper inclined supporting tube and the bottom fork right plate are welded and fixed;

the lower end of the main suspension frame of the engine is welded with a pedal shaft seat.

Preferably, a head pipe is welded at the front end of the main beam pipe, a main beam pipe reinforcing plate is welded at the lower end of the head pipe, and the other end of the main beam pipe reinforcing plate is welded on the inner side of the main beam pipe.

Preferably, an upper engine left suspension bracket and an upper engine right suspension bracket are respectively welded on the two sides of the main beam pipe below the rear mounting seat and above the main engine suspension bracket.

Preferably, a bottom fork lower connecting pipe is welded between the bottom fork left lower side pipe and the bottom fork right lower side pipe; an upper bottom fork connecting pipe is welded between the upper left bottom fork inclined supporting pipe and the upper right bottom fork inclined supporting pipe.

Preferably, a damping seat is welded between the bottom fork lower connecting pipe and the bottom fork upper connecting pipe.

Preferably, a tool box supporting seat is welded between the main suspension frame of the engine and the shock absorption seat.

Preferably, the front parts of the bottom fork left and right lower tubes are arc-shaped and are folded inwards forwards, and the end parts are flat; the bottom fork right upper inclined supporting pipe and the bottom fork left upper inclined supporting pipe extend upwards from back to front, form an arc in the middle and gradually retract, and the end parts are flat.

Preferably, the lower part of the main beam pipe is bent, and the rear mounting seat of the oil tank is connected to the bent part of the main beam pipe.

The utility model also provides a motorcycle which comprises the two-wheeled vehicle frame, wherein a pedal shaft is arranged in the pedal shaft seat.

Preferably, the pedal shaft is sleeved with a chain wheel, and the chain wheel is provided with a chain wheel and a chain matched with the chain wheel.

The utility model has the beneficial effects that: the utility model has simple structure, high strength and good stability, can realize the simultaneous use of the power supply of the motorcycle engine and the power assisting of the pedal of a rider, and of course, the frame of the utility model can also be applied to other two-wheeled vehicles except motorcycles and has the same effect.

Drawings

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

Fig. 2 is a schematic view of the rear part of an embodiment of the present invention.

Fig. 3 is a schematic view of the connection structure of the pedal axle seat according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 2, the frame of the two-wheeled vehicle comprises a main beam pipe 3, an oil tank rear mounting seat 4 is welded at the back of the main beam pipe 3, the lower part of the main beam pipe 3 is bent, and the oil tank rear mounting seat 4 is connected to the bent part of the main beam pipe. The left and right ends of the rear side of the oil tank rear mounting seat 4 are respectively connected with a bottom fork left upper inclined stay tube 5b and a bottom fork right upper inclined stay tube 5 a. The bottom fork right upper inclined supporting pipe 5a and the bottom fork left upper inclined supporting pipe 5b extend upwards from back to front, are in a circular arc at the middle part and gradually retract, and are flat at the end parts.

The lower end of the main beam pipe 3 is also welded with an engine main suspension bracket 11, and a bottom fork left lower edge pipe 7b and a bottom fork right lower edge pipe 7a are respectively welded on two sides of the engine main suspension bracket 11. The front parts of the bottom fork left lower tube 7b and the bottom fork right lower tube 7a are provided with circular arcs which are folded forwards and inwards, and the end parts are flat. The other ends of the bottom fork left lower edge tube 7b and the bottom fork left upper inclined supporting tube 5b are welded and fixed with a bottom fork left plate 8 b. And the bottom fork right lower edge tube 7a, the bottom fork right upper inclined supporting tube 5a and the bottom fork right plate 8a are welded and fixed.

A bottom fork lower connecting pipe 9 is welded between the bottom fork left lower pipe 7b and the bottom fork right lower pipe 7 a. A bottom fork upper connecting pipe 14 is welded between the bottom fork left upper inclined supporting pipe 5b and the bottom fork right upper inclined supporting pipe 5 a. A shock absorption seat 13 is welded between the bottom fork lower connecting pipe 9 and the bottom fork upper connecting pipe 14. Through the design, the two large triangles are formed at the rear part of the frame, the stability is good, and the strength requirement of the frame can be met on the premise of not using the traditional bottom fork.

The lower end of the main suspension frame 11 of the engine is welded with a pedal shaft seat 10, and in the embodiment, a tubular bearing seat is adopted for assembling a manual pedal power-assisted crank arm. The frame adopting the structure has high strength, is matched with the pedal shaft seat 10 for use, and realizes the functions of supplying working power to the engine and pedaling assistance to a rider, namely, the engine can work simultaneously or independently without interference.

In order to strengthen the strength of the utility model, the front end of the main beam pipe 3 is welded with a head pipe 1, the lower end of the head pipe 1 is welded with a main beam pipe reinforcing plate 2, and the other end of the main beam pipe reinforcing plate 2 is welded at the inner side of the main beam pipe 3. An upper engine left suspension bracket 6b and an upper engine right suspension bracket 6a are respectively welded on the two sides of the main beam pipe 3 below the rear mounting seat 4 and above the main engine suspension bracket 11. A tool box supporting seat 12 is welded between the engine main suspension frame 11 and the shock absorption seat 13.

The utility model also provides a motorcycle comprising the two-wheeled vehicle frame, as shown in fig. 3, wherein a pedal shaft 15 is arranged in the pedal shaft seat 10. The pedal shaft 15 is sleeved with a chain wheel 16, the chain wheel 16 is provided with a chain wheel chain (not shown) matched with the chain wheel, and the chain wheel chain is matched with a chain wheel of the rear wheel at the same time to provide assistance for the rear wheel.

Of course, in order to satisfy the use condition of the motorcycle, a bearing 17 is provided between the pedal shaft seat 10 and the pedal shaft 15, crank arms 18 are connected to both ends of the pedal shaft 15, and pedals 19 are connected to the crank arms 18.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A two wheeler frame, characterized by: the oil tank rear mounting structure comprises a main beam pipe (3), wherein an oil tank rear mounting seat (4) is welded at the back of the main beam pipe (3), and the left end and the right end of the rear side of the oil tank rear mounting seat (4) are respectively connected with a bottom fork left upper inclined supporting pipe (5b) and a bottom fork right upper inclined supporting pipe (5 a);

the lower end of the main beam pipe (3) is further welded with an engine main suspension bracket (11), and a bottom fork left lower side pipe (7b) and a bottom fork right lower side pipe (7a) are respectively welded on two sides of the engine main suspension bracket (11);

the other ends of the bottom fork left lower side tube (7b) and the bottom fork left upper inclined supporting tube (5b) are welded and fixed with a bottom fork left plate (8 b); the bottom fork right lower side tube (7a), the bottom fork right upper inclined supporting tube (5a) and the bottom fork right plate (8a) are welded and fixed;

the lower end of the main suspension frame (11) of the engine is welded with a pedal shaft seat (10).

2. The two-wheeled vehicle frame of claim 1, wherein: the front end of the main beam pipe (3) is welded with a head pipe (1), the lower end of the head pipe (1) is welded with a main beam pipe reinforcing plate (2), and the other end of the main beam pipe reinforcing plate (2) is welded on the inner side of the main beam pipe (3).

3. The two-wheeled vehicle frame of claim 1, wherein: an upper left suspension bracket (6b) and an upper right suspension bracket (6a) of the engine are respectively welded on the two sides of the main beam pipe (3) below the rear mounting seat (4) and above the main suspension bracket (11) of the engine.

4. The two-wheeled vehicle frame of claim 1, wherein: a bottom fork lower connecting pipe (9) is welded between the bottom fork left lower side pipe (7b) and the bottom fork right lower side pipe (7 a); an upper bottom fork connecting pipe (14) is welded between the upper left bottom fork inclined supporting pipe (5b) and the upper right bottom fork inclined supporting pipe (5 a).

5. The two-wheeled vehicle frame of claim 4, wherein: a damping seat (13) is welded between the bottom fork lower connecting pipe (9) and the bottom fork upper connecting pipe (14).

6. The two-wheeled vehicle frame of claim 5, wherein: a tool box supporting seat (12) is welded between the main suspension frame (11) of the engine and the shock absorption seat (13).

7. The two-wheeled vehicle frame of claim 1, wherein: the front parts of the bottom fork left lower side pipe (7b) and the bottom fork right lower side pipe (7a) are provided with forward and inward-folded circular arcs, and the end parts are flat; the bottom fork right upper inclined supporting pipe (5a) and the bottom fork left upper inclined supporting pipe (5b) extend upwards from back to front, are in arc shapes in the middle and gradually contract inwards, and are flat at the end parts.

8. The two-wheeled vehicle frame of claim 1, wherein: the lower part of the main beam pipe (3) is bent, and the oil tank rear mounting seat (4) is connected to the bent part of the oil tank rear mounting seat.

9. A motorcycle is characterized in that: comprising a two-wheeled vehicle frame according to any of claims 1 to 8, wherein the pedal axle seat (10) has a pedal axle (15) built-in.

10. A motorcycle as claimed in claim 9, wherein: the pedal shaft (15) is sleeved with a chain wheel (16), and the chain wheel (16) is provided with a chain wheel and a chain matched with the chain wheel.