Split type light weight high strength off-road motorcycle and frame thereof

Abstract

The utility model discloses a kind of off-road motorcycles of split type light weight high strength and its frame, including girder, engine elbow pipe frame and tailstock, the engine elbow pipe frame is connected in girder bottom and along girder length direction distribution, annular shock beam is connected with the side where engine elbow pipe frame is connected with the tail end of girder, annular shock beam and engine elbow pipe frame are surrounded and formed with annular mounting space located in the rear side of girder, and tailstock and engine elbow pipe frame and annular shock beam are all connected;Compared with prior art, by adjusting the connecting position of engine elbow pipe frame, girder and tailstock, and annular shock beam is connected with the side where engine elbow pipe frame is connected with the tail end of girder, annular shock beam and engine elbow pipe frame are surrounded and formed with annular mounting space located in the rear side of girder, this annular mounting space provides space for the arrangement of fuel pipe and oil circuit of carburetor etc., so that fuel pipe and oil circuit can be orderly arranged.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle technology, specifically to a split-type lightweight high-strength off-road motorcycle and its frame. Background Technology

[0002] A motocross bike is a two-wheeled motorcycle designed specifically for off-road environments, primarily used in various off-road races and all-terrain vehicle racing.

[0003] Most existing off-road motorcycles use either a cradle frame or a single-beam slab frame. These two types of frames have the following problems:

[0004] Traditional single-beam frames lack rigidity and strength, affect the shape and volume of the fuel tank, and cannot accommodate large-displacement engines with high cylinder heads due to the obstruction of the upper single beam, severely limiting the performance and safety of off-road motorcycles. In addition, the integral single-beam frame is not conducive to later modification and upgrades, and the overall weight is large, which to some extent weakens the overall performance of off-road vehicles.

[0005] Traditional cradle-style frames have many parts, are heavy, and have complex manufacturing processes, resulting in high manufacturing costs.

[0006] To address the aforementioned issues, CN223315150U discloses a split-type lightweight high-strength off-road motorcycle frame, comprising an engine bend frame and a tail rack mounted on the engine bend frame. It also includes a bent main beam fixed above the engine bend frame, reinforcement components mounted between the bent main beam and the engine bend frame, and two front bracket plates mounted inside the engine bend frame and away from the tail rack. The tail rack is detachably connected to the lower end of the bent main beam and both sides of the outer wall of the engine bend frame.

[0007] In the aforementioned split-type lightweight high-strength off-road motorcycle frame, the bottom front side of the bent main beam is connected to the engine bend frame, and the engine is installed in the mounting space formed inside the engine bend frame; however, the rear end of the bent main beam is directly connected to the tail frame, resulting in a small space between them, which seriously affects the layout of the pipelines and fuel lines of the carburetor, etc., and causes the pipelines and fuel lines to be arranged in a messy manner. Utility Model Content

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a split-type lightweight high-strength off-road motorcycle and its frame, so as to solve the problem that in the existing technology, the tail end of the bent main beam is directly connected to the tail frame, resulting in a small space between them, which seriously affects the layout of the pipelines and fuel lines of the carburetor, etc., and causes the pipelines and fuel lines to be messy and disorganized.

[0009] To achieve the above objectives, the first aspect of this utility model adopts the following technical solution: a split-type lightweight high-strength off-road motorcycle frame, including a main beam, an engine bend frame, and a tail frame. The engine bend frame is connected to the bottom of the main beam and distributed along the length of the main beam. An annular shock-absorbing beam is connected to the side of the engine bend frame that is connected to the tail end of the main beam. The annular shock-absorbing beam and the engine bend frame form an annular mounting space located behind the main beam. The tail frame is connected to both the engine bend frame and the annular shock-absorbing beam.

[0010] The second aspect of this utility model adopts the following technical solution: a split-type lightweight high-strength off-road motorcycle, including a split-type lightweight high-strength off-road motorcycle frame as described in the first aspect of this utility model.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This split-type lightweight high-strength off-road motorcycle frame adjusts the connection positions of the engine bend frame, main beam, and tailstock. A ring-shaped shock absorber beam is connected to the side where the engine bend frame connects to the rear end of the main beam. The ring-shaped shock absorber beam and the engine bend frame enclose a ring-shaped mounting space located behind the main beam. This ring-shaped mounting space provides space for the arrangement of pipelines and fuel lines, such as the carburetor, allowing for an orderly arrangement of these lines. Simultaneously, the ring-shaped shock absorber beam is connected to the shock absorber during use, which enhances the shock absorption capability of this split-type lightweight high-strength off-road motorcycle frame. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a split-type lightweight high-strength off-road motorcycle frame according to one embodiment of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of a split-type lightweight high-strength off-road motorcycle frame according to one embodiment of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of a split-type lightweight high-strength off-road motorcycle frame according to one embodiment of the present invention. Figure 3 ;

[0016] Figure 4 This is a partial structural diagram of a split-type lightweight high-strength off-road motorcycle according to one embodiment of the present invention.

[0017] The reference numerals in the accompanying drawings include: main beam 1, engine bend bracket 2, tail bracket 3, "V" bracket 31, connecting plate 32, annular shock absorber beam 4, fixing point 5, fuel tank 6, split suspension 7, connecting cylinder 71, connecting block 72, connecting shaft 73, and engine 8. Detailed Implementation

[0018] The present invention will be further described in detail below through specific embodiments:

[0019] like Figure 1 , Figure 2 as well as Figure 3 As shown in the figure, this utility model embodiment proposes a split-type lightweight high-strength off-road motorcycle frame, including a main beam 1, an engine bend frame 2, and a tail frame 3. The engine bend frame 2 is connected to the bottom of the main beam 1 and distributed along the length of the main beam 1. An annular shock-absorbing beam 4 is connected to the side of the engine bend frame 2 that is connected to the tail end of the main beam 1. The annular shock-absorbing beam 4 and the engine bend frame 2 form an annular mounting space located behind the main beam 1. The tail frame 3 is connected to both the engine bend frame 2 and the annular shock-absorbing beam 4.

[0020] This split-type lightweight high-strength off-road motorcycle frame adjusts the connection positions of the engine bend frame 2, main beam 1, and tail frame 3. A ring-shaped shock-absorbing beam 4 is connected to the side where the engine bend frame 2 connects to the tail end of the main beam 1. The ring-shaped shock-absorbing beam 4 and the engine bend frame 2 form a ring-shaped mounting space located behind the main beam 1. This ring-shaped mounting space provides space for the arrangement of pipelines and fuel lines such as the carburetor, allowing for an orderly arrangement of these lines. Simultaneously, the ring-shaped shock-absorbing beam 4 is connected to the shock absorber during use, which enhances the shock absorption capability of this split-type lightweight high-strength off-road motorcycle frame.

[0021] In this embodiment, the annular shock-absorbing beam 4 is bent in the middle and its two ends are welded to different sides of the top of the engine bending frame 2, so that the annular shock-absorbing beam 4 and the engine bending frame 2 form the annular installation space.

[0022] To improve the structural stability of the tailstock 3; such as Figure 1 , Figure 2 as well as Figure 3 As shown, according to another embodiment of the present invention, the split-type lightweight high-strength off-road motorcycle frame, wherein the tail frame 3 is connected to the engine bend frame 2 and the annular shock absorber beam 4 and arranged in a triangular shape.

[0023] In this embodiment, the tailstock 3 includes a "V"-shaped frame 31, and multiple "V"-shaped frames 31 are arranged sequentially at intervals along the width direction of the engine bend frame 2. One end of each "V"-shaped frame 31 is connected to the engine bend frame 2, and the other end is connected to the annular shock-absorbing beam 4. There are two "V"-shaped frames 31, and the bends of the two "V"-shaped frames 31 are connected by a connecting plate 32.

[0024] Here, the tailstock 3 is mainly composed of two "V"-shaped frames 31 and a connecting plate 32. The connecting plate 32 connects the two "V"-shaped frames 31, and both "V"-shaped frames 31 are connected to the engine bend frame 2 and the annular shock absorber beam 4, giving them sufficient connection stability. The "V"-shaped frames 31, as the main structure of the tailstock 3, have a shape design that makes their forming and processing relatively convenient. Simultaneously, the "V"-shaped frames 31 serve as two sides of a triangle, while the engine bend frame 2 and the annular shock absorber beam 4 cooperate to form one side of the triangle, so that the "V"-shaped frames 31, engine bend frame 2, and annular shock absorber beam 4 cooperate to form a triangular-like structure, thus giving the tailstock 3 superior structural stability.

[0025] The "V" shaped frame 31 is detachably connected to the engine bend frame 2 or the annular shock absorber beam 4 using bolts, which makes the tail frame 3 more expandable and allows for the replacement of other tail frame shapes as needed.

[0026] To improve the installation stability of fuel tank 6 within the chassis, such as Figure 2 As shown, according to another embodiment of the present invention, the split-type lightweight high-strength off-road motorcycle frame has at least one fixing point 5 formed on the engine bend frame 2 for connecting to the fuel tank 6.

[0027] In this embodiment, there are two fixing points 5, which are distributed on different sides of the main beam 1. Both fixing points 5 are located on the top side of the engine bend bracket 2. The two fixing points 5 are connected to the fuel tank 6 by means of screws or the like, so as to improve the stability of the fuel tank 6 after installation. In addition, the fixing points 5 can also distribute the pressure on the fuel tank 6 to the engine bend bracket 2.

[0028] In order to be compatible with different models of engine 8, such as Figure 1 , Figure 2 as well as Figure 3 As shown, according to another embodiment of the present invention, a split-type lightweight high-strength off-road motorcycle frame is provided, wherein a split-type suspension 7 for connecting to the engine 8 is detachably connected to the engine bend frame 2.

[0029] In this embodiment, since the split suspension 7 is detachably connected to the engine bend bracket 2, the split suspension 7 can be adapted to different models of engine 8, ensuring that the engine 8 can be installed stably.

[0030] Specifically, the split suspension 7 shown in this embodiment includes a connecting cylinder 71 and a connecting block 72. A connecting shaft 73 is movably connected inside the connecting cylinder 71, and both ends of the connecting shaft 73 are detachably connected to the engine bend bracket 2. There are multiple connecting blocks 72, and the middle of each of the multiple connecting blocks 72 is connected to the connecting cylinder 71. The two ends of the multiple connecting blocks 72 cooperate to form a connection point for connecting to the engine 8.

[0031] The connecting shaft 73 has mounting holes at both ends that are formed on the engine bend bracket 2. Each end of the connecting shaft 73 passes through one of the mounting holes and is threaded with a nut to stably and detachably connect the split suspension 7 to the engine bend bracket 2. In this embodiment, there are two connecting blocks 72, and the middle of each connecting block 72 is bent so that the four connection points formed by the two connecting blocks 72 are all arranged facing the mounting space formed by the engine bend bracket 2. Each of the four connection points can be detachably connected to the engine 8 using bolts.

[0032] The aforementioned split-type lightweight, high-strength off-road motorcycle frame is applied to off-road motorcycles, such as... Figure 4 As shown, according to another embodiment of the present invention, the split-type lightweight high-strength off-road motorcycle includes a split-type lightweight high-strength off-road motorcycle frame as described in any of the above embodiments, thereby possessing its advantages.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A split-type lightweight high-strength off-road motorcycle frame, comprising a main beam, an engine bend frame, and a tail rack, characterized in that, The engine bending frame is connected to the bottom of the main beam and distributed along the length of the main beam. A ring-shaped shock-absorbing beam is connected to the side of the engine bending frame that is connected to the tail end of the main beam. The ring-shaped shock-absorbing beam and the engine bending frame form a ring-shaped installation space located on the rear side of the main beam. The tail frame is connected to both the engine bending frame and the ring-shaped shock-absorbing beam.

2. The split-type lightweight high-strength off-road motorcycle frame according to claim 1, characterized in that, The tailstock is connected to the engine bending frame and the annular shock absorber beam, and is arranged in a roughly triangular shape.

3. The split-type lightweight high-strength off-road motorcycle frame according to claim 2, characterized in that, The tail frame includes: The "V" shaped frame has multiple "V" shaped frames arranged sequentially at intervals along the width direction of the engine bend frame. One end of each "V" shaped frame is connected to the engine bend frame and the other end is connected to the annular shock-absorbing beam.

4. A split-type lightweight high-strength off-road motorcycle frame according to claim 3, characterized in that, There are two "V"-shaped frames, and the turning points of the two "V"-shaped frames are connected by a connecting plate.

5. A split-type lightweight high-strength off-road motorcycle frame according to any one of claims 1-4, characterized in that, The engine bend bracket has at least one fixing point for connecting to the fuel tank.

6. A split-type lightweight high-strength off-road motorcycle frame according to claim 5, characterized in that, The fixing point is located on the top side of the engine bend bracket.

7. A split-type lightweight high-strength off-road motorcycle frame according to any one of claims 1-4, characterized in that, The engine bend frame is detachably connected to a split suspension for connecting to the engine.

8. A split-type lightweight high-strength off-road motorcycle frame according to claim 7, characterized in that, The split-type suspension includes: A connecting cylinder, wherein a connecting shaft is movably connected inside the connecting cylinder, and both ends of the connecting shaft are detachably connected to the engine bending frame; The connecting blocks are multiple in number and their middle portions are connected to the connecting cylinder. The two ends of the multiple connecting blocks cooperate to form a connection point for connection with the engine.

9. A split-type lightweight high-strength off-road motorcycle, characterized in that, Including a split-type lightweight high-strength off-road motorcycle frame as described in any one of claims 1-8.

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