Motorcycle frame

Abstract

The utility model relates to the technical field of motorcycles, in particular to a motorcycle frame which comprises a vertical tube, the upper portion of the vertical tube is connected with a left main beam tube and a right main beam tube, and the front end of the left main beam tube is connected with the front end of the right main beam tube. The rear end of the left main beam pipe and the rear end of the right main beam pipe are connected with a left inclined supporting pipe and a right inclined supporting pipe respectively, the left inclined supporting pipe and the right inclined supporting pipe are connected with a double-lug connecting piece, and the other end of the double-lug connecting piece is connected with the bicycle vertical pipe. The left main beam pipe, the right main beam pipe, the left inclined supporting pipe and the right inclined supporting pipe are all in obtuse angle shapes. The whole frame has high strength, the problem that an existing frame is complex in connecting mode is solved, the structure is compact, the technology is simple, the connecting strength of an engine and the frame can be improved, and vibration is reduced; a part of mounting points are integrally cast and formed, so that welding support lugs are reduced, the welding process is optimized, a plurality of mounting functions are integrated on one product, the labor cost is greatly reduced, and meanwhile, the simple structural characteristic is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a motorcycle frame. Background Art

[0002] Currently, vertical rear engine suspension is used in motorcycle technology. However, this suspension method results in insufficient bracket connection strength and difficulty ensuring consistent engine suspension. This structure has the following problems: 1. The split bracket is not strong enough, resulting in excessive vibration between the engine and the frame; 2. It is prone to deformation during use; and 3. The production process is complex.

[0003] Therefore those skilled in the art are devoted to developing a motorcycle frame with high strength and low vibration. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a motorcycle frame with high strength and low vibration.

[0005] To achieve the above-mentioned object, the present invention provides a motorcycle frame, comprising a seat tube, wherein the upper portion of the seat tube is connected to a left main beam tube and a right main beam tube, and the front ends of the left main beam tube and the right main beam tube are connected; the rear ends of the left main beam tube and the right main beam tube are respectively connected to a left diagonal bracing tube and a right diagonal bracing tube, and the left diagonal bracing tube and the right diagonal bracing tube are connected to a double-ear connector, and the other end of the double-ear connector is connected to the seat tube;

[0006] The left main beam tube, the right main beam tube, the left diagonal bracing tube and the right diagonal bracing tube are all in an obtuse angle shape.

[0007] Preferably, a reinforcing plate is provided at the lower end of the double-ear connector, and the front end of the reinforcing plate is connected to the vehicle stand pipe.

[0008] Preferably, the left main beam tube and the right main beam tube are integrally formed.

[0009] Preferably, the left main beam tube and the left diagonal support tube are arranged opposite to each other at a corner; the right main beam tube and the right diagonal support tube are arranged opposite to each other at a corner.

[0010] Preferably, the left main beam tube and the right main beam tube are provided with an engine upper suspension connection block, and the left diagonal bracing tube and the right diagonal bracing tube are provided with an engine lower suspension connection block.

[0011] Preferably, a support tube is connected between the left main beam tube and the right main beam tube.

[0012] Preferably, the support pipe is connected to a left tail pipe and a right tail pipe.

[0013] Preferably, the tail ends of the left main beam tube and the right main beam tube are connected to the left tail tube support tube and the right tail tube support tube respectively, and the other ends of the left tail tube support tube and the right tail tube support tube are connected to the left tail tube and the right tail tube respectively.

[0014] Preferably, the left main beam tube and the left diagonal bracing tube are connected via a left pedal bracket, and the right main beam tube and the right diagonal bracing tube are connected via a right pedal bracket.

[0015] Preferably, a riser connector connected to the vehicle riser is provided on the upper side of the double-ear connector, and the top of the riser connector is connected to the junction of the left main beam tube and the right main beam tube.

[0016] The beneficial effects of the present invention are as follows: the present invention has a relatively high overall strength, solves the problem of the complicated connection method of the existing frame, has a compact structure and a simple process, can increase the connection strength between the engine and the frame, and reduce vibration; some installation points adopt an integral casting and one-piece molding method, which reduces the welding lugs, optimizes the welding process, and realizes the integration of multiple installation functions on one product, greatly reducing labor costs, and at the same time achieving a simple and beautiful structural feature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a specific implementation method of the utility model.

[0018] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, in the description of the present invention, the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positions, are based on the directions or positions shown in the accompanying drawings and are intended solely for the purpose of facilitating and simplifying the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific manner. Therefore, they should not be construed as limiting the present invention. The terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figure 1As shown, a motorcycle frame includes a seat tube 1. A left main beam tube 31 and a right main beam tube 32 are connected to the upper portion of the seat tube 1. The front ends of the left and right main beam tubes 31 and 32 are connected. In this embodiment, the left and right main beam tubes 31 and 32 are integrally formed, thereby enhancing the rigidity of the component. The rear ends of the left and right main beam tubes 31 and 32 are connected to a left diagonal bracing tube 111 and a right diagonal bracing tube 112, respectively. The left and right diagonal bracing tubes 111 and 112 are connected to a double-ear connector 13, the other end of which is connected to the seat tube 1. In this embodiment, the double-ear connector is Y-shaped, with a main connecting end connected to the seat tube 1 and two symmetrical branch connecting ends at the lower end, each of which is connected to the left and right diagonal bracing tubes 111 and 112, respectively. A riser connector 14 connected to the vehicle riser 1 is provided on the upper side of the double-ear connector 13. The top of the riser connector 14 is connected to the junction of the left main beam tube 31 and the right main beam tube 32. In this embodiment, the riser connector 14 is triangular in shape to improve overall stability.

[0021] The left main beam tube 31, right main beam tube 32, left diagonal bracing tube 111, and right diagonal bracing tube 112 all have obtuse angles. The left main beam tube 31 and left diagonal bracing tube 111 are positioned opposite each other at their corners, while the right main beam tube 32 and right diagonal bracing tube 112 are positioned opposite each other at their corners. This arrangement creates two symmetrical triangles with large angles, each with the left and right diagonal bracing tubes, facilitating overall load-bearing and stability.

[0022] The present invention makes the vehicle stand tube 1, the left main beam tube 31, the left diagonal bracing tube 111, the right main beam tube 31 and the right diagonal bracing tube 112 form an integral body, so that the vehicle frame is a closed structure, the connection method is simple, and the stability of the overall structure is improved.

[0023] The lower end of the double-ear connector 13 is provided with a reinforcing plate 2, and the front end of the reinforcing plate 2 is connected to the vehicle stand pipe 1. The provision of the reinforcing plate can increase the strength of the double-ear connector 13 and improve the overall durability.

[0024] The left and right main beam tubes 31 and 32 are equipped with engine upper suspension connection blocks 4, while the left and right diagonal bracing tubes 111 and 112 are equipped with engine lower suspension connection blocks 10. This design integrates the rear engine suspension with the vehicle frame, reducing vibration and improving vehicle rigidity. This also reduces welding deformation of the frame, significantly improving the comfort and consistency of the final product.

[0025] A support tube 5 is connected between the left and right main beam tubes 31 and 32. In this embodiment, the support tube 5 is a gate-shaped support tube, comprising a main cross tube with downwardly extending support angles at each end. The two support angles are connected to the left and right main beam tubes 31 and 32, respectively. The provision of the support tube 5 increases the stability of the left and right main beam tubes 31 and 32 and prevents deformation under stress.

[0026] The left and right tail pipes 61 and 62 are connected to the support tube 5. The tail ends of the left and right main beam tubes 31 and 32 are connected to the left and right tail pipe support tubes 71 and 72, respectively. The other ends of the left and right tail pipe support tubes 71 and 72 are connected to the left and right tail pipes 61 and 62, respectively. The left and right tail pipe support tubes 61 and 62 together form the rear portion of the vehicle frame. The left and right tail pipes 61 and 62 are connected to the support tube 5, and the left and right tail pipe support tubes 71 and 72 are connected to the left and right main beam tubes 31 and 32. This design not only provides better support for the rear portion of the vehicle frame, but also facilitates the dispersion of unilateral forces through the connection of the support tubes, thereby improving overall stability.

[0027] The left main beam tube 31 and the left diagonal bracing tube 111 are connected by the left footrest bracket 81, and the right main beam tube 32 and the right diagonal bracing tube 112 are connected by the right footrest bracket 82. The left footrest bracket 81 and the right footrest bracket 82 are made of cast steel in this embodiment, which has high strength and good durability. Figure 1 and Figure 2 As shown, the left pedal bracket 81 and the right pedal bracket 82 are both provided with a flat fork mounting seat 83 and a pedal mounting seat 84, and the right pedal bracket 82 is provided with a rear disc brake mounting seat 85. The overall structure is compact and adopts steel casting, which has high strength and further improves the processing speed.

[0028] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A motorcycle frame, characterized by: Including car A vertical tube (1), wherein the upper portion of the vehicle vertical tube (1) is connected to a left main beam tube (31) and a right main beam tube (32), and the front ends of the left main beam tube (31) and the right main beam tube (32) are connected; the rear ends of the left main beam tube (31) and the right main beam tube (32) are respectively connected to a left diagonal support tube (111) and a right diagonal support tube (112), and the left diagonal support tube (111) and the right diagonal support tube (112) are connected to a double-ear connector (13), and the other end of the double-ear connector (13) is connected to the vehicle vertical tube (1); The left main beam tube (31), the right main beam tube (32), the left diagonal bracing tube (111) and the right diagonal bracing tube (112) are all in an obtuse angle shape.

2. The motorcycle frame according to claim 1, wherein: A reinforcing plate (2) is provided at the lower end of the double-ear connector (13), and the front end of the reinforcing plate (2) is connected to the vehicle stand pipe (1).

3. The motorcycle frame according to claim 1, wherein: The left main beam tube (31) and the right main beam tube (32) are integrally formed.

4. The motorcycle frame according to claim 1, wherein: The left main beam tube (31) and the left diagonal support tube (111) are arranged opposite to each other at a corner; the right main beam tube (32) and the right diagonal support tube (112) are arranged opposite to each other at a corner.

5. The motorcycle frame according to claim 1, wherein: The left main beam tube (31) and the right main beam tube (32) are provided with an engine upper suspension connection block (4), and the left diagonal support tube (111) and the right diagonal support tube (112) are provided with an engine lower suspension connection block (10).

6. The motorcycle frame according to claim 1, wherein: A support tube (5) is connected between the left main beam tube (31) and the right main beam tube (32).

7. The motorcycle frame according to claim 6, wherein: The support tube (5) is connected to a left tail tube (61) and a right tail tube (62).

8. The motorcycle frame according to claim 7, wherein: The tail ends of the left main beam tube (31) and the right main beam tube (32) are respectively connected to a left tail pipe support tube (71) and a right tail pipe support tube (72); the other ends of the left tail pipe support tube (71) and the right tail pipe support tube (72) are respectively connected to a left tail pipe (61) and a right tail pipe (62).

9. The motorcycle frame according to claim 1, wherein: The left main beam tube (31) and the left diagonal bracing tube (111) are connected via a left pedal bracket (81), and the right main beam tube (32) and the right diagonal bracing tube (112) are connected via a right pedal bracket (82); The left pedal bracket (81) and the right pedal bracket (82) are both provided with a flat fork mounting seat (83) and a pedal mounting seat (84), and the right pedal bracket (82) is provided with a rear disc brake mounting seat (85).

10. The motorcycle frame according to claim 1, wherein: A standpipe connector (14) connected to the vehicle standpipe (1) is provided on the upper side of the double-ear connector (13), and the top of the standpipe connector (14) is connected to the junction of the left main beam tube (31) and the right main beam tube (32).

Images