Rear cradle structure of motorcycle

Abstract

The utility model discloses a rear cradle structure of a motorcycle, which belongs to the technical field of rear cradles of motorcycles, and comprises two rear cradle arms, a connecting arm is arranged between the two rear cradle arms, the right ends of the two rear cradle arms are respectively provided with a chute, the inner walls of the two chutes are respectively connected with a telescopic cradle arm in a sliding manner, and the telescopic cradle arms are connected with the connecting arm in a sliding manner. Connecting sleeves are fixedly connected to the right ends of the two telescopic cradle arms, fixing screws are fixedly connected to the front faces of the two telescopic cradle arms, first through holes are formed in the outer surfaces of the two rear cradle arms, and fixing nuts are in threaded connection to the outer surfaces of the two fixing screws; threaded grooves are formed in the upper surfaces of the two telescopic cradle arms, and second through holes are formed in the upper surfaces of the two rear cradle arms. According to the motorcycle rear cradle structure, the overall length of the rear cradle arm and the telescopic cradle arm can be adjusted, the assembly requirements of different motorcycle rear wheel states can be met, and the assembly flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle rear swingarms, specifically a motorcycle rear swingarm structure. Background Technology

[0002] The motorcycle rear swingarm is an important component of the motorcycle frame. It mainly connects the rear wheel of the motorcycle to the main frame body. Its basic function is to support the rear wheel and allow it to move up and down flexibly within a certain range. At the same time, it also provides a mounting position for the rear shock absorber. The rear shock absorber acts on the rear wheel through the swingarm, effectively buffering the impact of the road.

[0003] The motorcycle rear swingarm is an important component that supports the rear wheel. However, current rear swingarms are usually one-piece structures, making it difficult to adjust the length of the swingarm and failing to meet the assembly requirements of different motorcycle rear wheel configurations. This will cause trouble during the assembly process. Therefore, those skilled in the art have provided a motorcycle rear swingarm structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a motorcycle rear swingarm structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A motorcycle rear swingarm structure includes two swingarm arms, a connecting arm between the two swingarm arms, a sliding groove at the right end of each of the two swingarm arms, a telescopic swingarm arm slidably connected to the inner wall of each of the two sliding grooves, a connecting sleeve fixedly connected to the right end of each of the two telescopic swingarm arms, a fixing screw fixedly connected to the front of each of the two telescopic swingarm arms, a first through hole on the outer surface of each of the two swingarm arms, a fixing nut threadedly connected to the outer surface of each of the two fixing screws, a threaded groove on the upper surface of each of the two telescopic swingarm arms, and a second through hole on the upper surface of each of the two swingarm arms.

[0007] As a further improvement of this utility model: each of the two second through holes is provided with a fixing screw, and the outer surfaces of the two fixing screws are respectively threaded to the inner walls of the two threaded grooves.

[0008] As a further improvement of this utility model: the two rear rocker arms are fixedly connected to the outer surface of the connecting arm on their sides that are close to each other, and the left ends of the two rear rocker arms are fixedly connected to a pivot tube.

[0009] As a further improvement of this utility model: two upright plates are fixedly connected to the upper surface of the connecting arm, and connecting holes are provided on the side of the two upright plates that are far apart from each other.

[0010] As a further embodiment of this utility model: two reinforcing plates are fixedly connected to the right side of the connecting arm, and the two reinforcing plates are respectively fixedly connected to the sides of the two rear rocker arms that are close to each other.

[0011] As a further embodiment of this utility model: the ends of the two fixing screws that are far apart from each other pass through the first through hole and extend to the outside of the rear rocker arm, and the ends of the two fixing nuts that are close to each other are in close contact with the outer surfaces of the two rear rocker arms respectively.

[0012] As a further embodiment of this utility model: the bottom surface of the connecting arm is fixedly connected to two fixing blocks, and the two fixing blocks are respectively fixedly connected to the sides of the two rear rocker arms that are close to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This motorcycle rear swingarm structure features two sliding grooves on the two swingarm arms, allowing for the installation of two telescopic swingarm arms. These grooves enable the telescopic swingarm arms to slide and extend within the grooves, facilitating adjustment of the overall length between the swingarm arms and the telescopic swingarm arms. A fixing screw and nut located in the first through hole, along with a second through hole, threaded groove, and fixing screw, provide double locking and securing to the telescopic swingarm arms, ensuring their stability. This allows for overall length adjustment of the rear swingarm, meeting the assembly requirements of different motorcycle rear wheel configurations and improving assembly flexibility. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of a motorcycle rear swingarm structure (front view).

[0016] Figure 2 This is a sectional view of a side view of a motorcycle rear swingarm structure;

[0017] Figure 3 This is a sectional view of the front view of the rear swingarm in a motorcycle rear swingarm structure;

[0018] Figure 4 A motorcycle rear swingarm structure Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Rear rocker arm; 2. Connecting arm; 3. Telescopic rocker arm; 4. Slide groove; 5. Connecting sleeve; 6. First through hole; 7. Fixing screw; 8. Fixing nut; 9. Second through hole; 10. Fixing screw; 11. Threaded groove; 12. Connecting hole; 13. Reinforcing plate; 14. Fixing block; 15. Pivot tube; 16. Vertical plate. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4 In this embodiment of the utility model, a motorcycle rear swingarm structure includes two rear swingarm arms 1, a connecting arm 2 between the two rear swingarm arms 1, a sliding groove 4 at the right end of each of the two rear swingarm arms 1, a telescopic swingarm arm 3 slidably connected to the inner wall of each of the two sliding grooves 4, a connecting sleeve 5 fixedly connected to the right end of each of the two telescopic swingarm arms 3, a fixing screw 7 fixedly connected to the front of each of the two telescopic swingarm arms 3, a first through hole 6 on the outer surface of each of the two rear swingarm arms 1, a fixing nut 8 threadedly connected to the outer surface of each of the two fixing screws 7, a threaded groove 11 on the upper surface of each of the two telescopic swingarm arms 3, and a second through hole 9 on the upper surface of each of the two rear swingarm arms 1. Through the cooperation of the fixing screw 7 and the fixing nut 8, and the threaded groove 11 and the fixing screw 10, the telescopic swingarm arm 3 that slides inside the rear swingarm arm 1 will be doubly locked and fixed, ensuring the stability of the telescopic swingarm arm 3.

[0023] As a further improvement of this utility model: Each of the two second through holes 9 is provided with a fixing screw 10. The outer surfaces of the two fixing screws 10 are respectively threaded to the inner walls of the two threaded grooves 11. The sides of the two rear rocker arms 1 that are close to each other are fixedly connected to the outer surface of the connecting arm 2. The left ends of the two rear rocker arms 1 are fixedly connected with pivot tubes 15. The upper surface of the connecting arm 2 is fixedly connected with two upright plates 16. The sides of the two upright plates 16 that are far apart from each other are provided with connecting holes 12. Through the threaded connection of the fixing screws 10 and the threaded grooves 11, the telescopic rocker arms 3 can be firmly locked and fixed. By utilizing the cooperation of the upright plates 16 and the connecting holes 12, they can be connected and installed with the rear shock absorber, which will better install and fix the rear shock absorber.

[0024] As a further improvement of this utility model: two reinforcing plates 13 are fixedly connected to the right side of the connecting arm 2. The two reinforcing plates 13 are fixedly connected to the sides of the two rear rocker arms 1 that are close to each other. Two fixing blocks 14 are fixedly connected to the bottom surface of the connecting arm 2. The two fixing blocks 14 are fixedly connected to the sides of the two rear rocker arms 1 that are close to each other. The ends of the two fixing screws 7 that are far apart from each other pass through the first through hole 6 and extend to the outside of the rear rocker arm 1. The ends of the two fixing nuts 8 that are close to each other are in close contact with the outer surface of the two rear rocker arms 1. By setting the reinforcing plates 13 and fixing blocks 14, the connecting arm 2 and the rear rocker arm 1 can be better connected, improving the overall firmness and making the rear rocker structure more pressure resistant.

[0025] The working principle of this utility model is as follows: When adjusting the overall length of the rear rocker arm 1, firstly, use a wrench to loosen the fixing screw 10 and the fixing nut 8. Then, the telescopic rocker arm 3 can be pulled left and right through the connecting sleeve 5, which allows the telescopic rocker arm 3 to slide outward inside the slide groove 4, thereby increasing the length between the rear rocker arm 1 and the telescopic rocker arm 3. Next, use a wrench to rotate and tighten the fixing screw 10 and the fixing nut 8 respectively, thereby completing the adjustment of the overall length of the rear rocker arm 1, which facilitates the assembly and connection with the motorcycle rear wheel assembly and improves the connection and assembly speed.

[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motorcycle rear swingarm structure, comprising two swingarm arms (1), characterized in that, A connecting arm (2) is provided between the two rear rocker arms (1). A sliding groove (4) is provided at the right end of each of the two rear rocker arms (1). A telescopic rocker arm (3) is slidably connected to the inner wall of each of the two sliding grooves (4). A connecting sleeve (5) is fixedly connected to the right end of each of the two telescopic rocker arms (3). A fixing screw (7) is fixedly connected to the front of each of the two telescopic rocker arms (3). A first through hole (6) is provided on the outer surface of each of the two rear rocker arms (1). A fixing nut (8) is threadedly connected to the outer surface of each of the two fixing screws (7). A threaded groove (11) is provided on the upper surface of each of the two telescopic rocker arms (3). A second through hole (9) is provided on the upper surface of each of the two rear rocker arms (1).

2. The motorcycle rear swingarm structure according to claim 1, characterized in that, The two second through holes (9) are each provided with a fixing screw (10), and the outer surfaces of the two fixing screws (10) are respectively threaded to the inner walls of the two threaded grooves (11).

3. The motorcycle rear swingarm structure according to claim 1, characterized in that, The two rear rocker arms (1) are fixedly connected to the outer surface of the connecting arm (2) on their side closest to each other, and the left ends of the two rear rocker arms (1) are fixedly connected to the pivot tube (15).

4. The motorcycle rear swingarm structure according to claim 1, characterized in that, The upper surface of the connecting arm (2) is fixedly connected to two upright plates (16), and each of the two upright plates (16) has a connecting hole (12) on one side away from each other.

5. A motorcycle rear swingarm structure according to claim 1, characterized in that, Two reinforcing plates (13) are fixedly connected to the right side of the connecting arm (2), and the two reinforcing plates (13) are fixedly connected to the sides of the two rear rocker arms (1) that are close to each other.

6. The motorcycle rear swingarm structure according to claim 1, characterized in that, The ends of the two fixing screws (7) that are far apart from each other pass through the first through hole (6) and extend to the outside of the rear rocker arm (1), and the ends of the two fixing nuts (8) that are close to each other are in close contact with the outer surfaces of the two rear rocker arms (1).

7. A motorcycle rear swingarm structure according to claim 1, characterized in that, The bottom surface of the connecting arm (2) is fixedly connected to two fixing blocks (14), and the two fixing blocks (14) are fixedly connected to the sides of the two rear rocker arms (1) that are close to each other.

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