Rear suspension rocker arm structure for motorcycle

Abstract

The utility model relates to the technical field of motorcycles, in particular to a rear suspension rocker arm structure for a motorcycle, which comprises a bent plate and a suspension rocker arm, the surface of the bent plate is fixedly connected with the surface of the suspension rocker arm, the left side of the surface of the bent plate is fixedly connected with a damping mounting support lug, a first inner threaded hole is processed in the bent plate, and a slot is processed in a tailstock. A motorcycle damping fixing structure is arranged in the open groove, a rear suspension rocker arm anti-friction structure is arranged at the upper end of the surface of the bent plate, the suspension pull rod is manually rotated to move leftwards or rightwards through cooperation of the rear suspension rocker arm anti-friction structure and the bent plate, and the rotating rod is driven to move leftwards and rightwards in the pull rod mounting supporting lug through a bearing. The suspension pull rod and the pull rod installation supporting lug move through the rubber pad and the friction disc, the suspension pull rod is prevented from making direct contact with the pull rod installation supporting lug, left-right movement of the suspension pull rod is not hindered through cooperation of the friction disc, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a rear suspension rocker arm structure for motorcycles. Background Art

[0002] In motorcycle design, the rocker arm is one of the key components. Its main function is to connect the engine and the frame and provide a stable suspension system for the motorcycle. There are two main design forms of the rocker arm: single rocker arm and double rocker arm.

[0003] For example, in a rear suspension rocker arm structure for motorcycles with authorization announcement number "CN220577448U", the suspension rod and the shock absorber rod are respectively connected to the two vertices of the triangular structure. In the case of extreme use, the suspension rod and the shock absorber rod will not be in the same straight line, thus avoiding the phenomenon of locking, thereby avoiding the risk of the suspension rod breaking, and ensuring the stability and reliable safety of the suspension rocker arm. However, when the rear suspension rocker arm structure for motorcycles is performing shock absorption work, although the upper end of the shock absorber rod of the device is fixed, the lower end cannot be fixed in position, and the shock absorber rod is movably connected to the body. When the motorcycle is driving, the shock absorber rod will have a slight left and right movement, which reduces the stability of the shock absorber rod. At the same time, when the rear suspension rocker arm structure for motorcycles is performing left and right movement, the suspension rocker arm and the tie rod mounting lug are in direct contact. Long-term work will cause wear on the surfaces of the suspension rocker arm and the tie rod mounting lug, increasing the maintenance cost of the equipment. Summary of the invention

[0004] The utility model aims to solve the problems that when a motorcycle is running, the shock absorber rod will produce slight left and right movement, which reduces the stability of the shock absorber rod and causes wear on the surfaces of the suspension rocker arm and the pull rod mounting lugs due to long-term work, thereby increasing the maintenance cost of the equipment, and proposes a rear suspension rocker arm structure for a motorcycle.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rear suspension rocker arm structure for a motorcycle is designed, comprising a bent plate and a suspension rocker arm, wherein the surface of the bent plate is fixedly connected to the surface of the suspension rocker arm, a shock-absorbing mounting ear is fixedly connected to the left side of the bent plate surface, a first internal threaded hole is processed in the bent plate, the back of the bent plate is movably connected to the tail seat through a pin shaft, a slot is processed in the tail seat, a motorcycle shock-absorbing fixing structure is arranged in the slot, and a rear suspension rocker arm anti-friction structure is arranged on the upper end of the bent plate surface.

[0007] Preferably, the motorcycle shock-absorbing fixed structure includes a spring, the inner wall of the spring is fixedly connected to a round rod, the right end of the round rod is fixedly connected to a square plate, the upper surface of the square plate is fixedly connected to a vertical rod, the vertical rod passes through the tailstock and is slidably connected to a slideway processed on the tailstock, and the square plate passes through a slot and is socketed with the slot.

[0008] Preferably, the left end of the spring is fixedly connected to the inner wall of the slot, and the right end of the spring is fixedly connected to the left end of the square plate.

[0009] Preferably, a second internal threaded hole is processed in the square plate, and a shock absorbing rod is fixedly connected to the left end of the tailstock.

[0010] Preferably, the rear suspension rocker arm anti-friction structure includes a suspension rod, a rubber pad is fixedly connected to the surface of the suspension rod, the surface of the rubber pad is movably connected to the surface of the friction disk, circular holes are processed in the rubber pad and the friction disk, a rod mounting ear is fixedly connected to the surface of the friction disk, the rod mounting ear is fixedly connected to the surface of the bent plate, a rotating rod is fixedly connected to the surface of the suspension rod, the rotating rod passes through the circular holes of the rubber pad and the friction disk respectively and is movably connected to the rod mounting ear through a bearing.

[0011] Preferably, a flat fork mounting lug is fixedly connected to the middle portion of the curved plate surface, and a suspension rocker arm is fixedly connected to the upper end of the curved plate surface.

[0012] The utility model provides a rear suspension rocker arm structure for motorcycles, which has the beneficial effects of: through the cooperation of the motorcycle shock-absorbing fixing structure and the first internal threaded hole, the vertical rod is manually pulled to the right, so that the vertical rod slides to the right on the slideway processed on the tailstock, driving the square plate and the round rod to move to the right, stretching the spring, and moving the square plate to the right in the slot, so that the second internal threaded hole is aligned with the first internal threaded hole, and then the bolt penetrates the first internal threaded hole and the second internal threaded hole to fix the position of the square plate, and the shock-absorbing rod and the tailstock are fixed in position by cooperating with the fixed position of the upper part of the shock-absorbing rod and the equipment, thereby improving the stability of the shock-absorbing rod;

[0013] Through the cooperation of the rear suspension rocker arm anti-friction structure and the bent plate, the suspension tie rod is manually rotated to the left or right, driving the rotating rod to move left and right through the bearing in the tie rod mounting ear. The suspension tie rod and the tie rod mounting ear are moved through the rubber pad and the friction disk to prevent the suspension tie rod from directly contacting the tie rod mounting ear and prevent damage due to long-term movement. The cooperation of the friction disk does not hinder the suspension tie rod from moving left and right, thereby reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front view of

[0016] Figure 3 It is a partial top view of the anti-friction structure of the bent plate and the rear suspension rocker arm;

[0017] Figure 4 for Figure 2 A partial front view of

[0018] Figure 5 It is a top cross-sectional view of the tailstock, slots and motorcycle shock-absorbing fixing structure;

[0019] Figure 6 It is a three-dimensional diagram of the square plate and the second internal threaded hole.

[0020] In the figure: 1, bent plate, 2, flat fork mounting lug, 3, suspension rocker arm, 4, rear suspension rocker arm anti-friction structure, 401, suspension pull rod, 402, pull rod mounting lug, 403, friction plate, 404, rubber pad, 405, rotating rod, 5, tail seat, 6, shock absorber rod, 7, shock absorber mounting lug, 8, first internal threaded hole, 9, motorcycle shock absorber fixing structure, 901, square plate, 902, vertical pole, 903, spring, 904, round rod, 905, second internal threaded hole, 10, slot. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6 :

[0023] In this embodiment, a rear suspension rocker arm structure for a motorcycle includes a bent plate 1 and a suspension rocker arm 3. The surface of the bent plate 1 is fixedly connected to the surface of the suspension rocker arm 3. A shock-absorbing mounting ear 7 is fixedly connected to the left side of the surface of the bent plate 1. A first internal threaded hole 8 is processed inside the bent plate 1, and a bolt can pass through the first internal threaded hole 8. The back of the bent plate 1 is movably connected to the tail seat 5 through a pin shaft. The tail seat 5 can rotate on the back of the bent plate 1. A groove 10 is processed inside the tail seat 5, and a motorcycle shock-absorbing fixing structure 9 is arranged in the groove 10. A rear suspension rocker arm anti-friction structure 4 is arranged on the upper end of the surface of the bent plate 1, a flat fork mounting ear 2 is fixedly connected to the middle part of the surface of the bent plate 1, and a suspension rocker arm 3 is fixedly connected to the upper end of the surface of the bent plate 1.

[0024] See attached Figure 1-2 and Figure 5-6 :

[0025] The motorcycle shock-absorbing fixed structure 9 includes a spring 903, the inner wall of the spring 903 is fixedly connected with a round rod 904, the elastic coefficient of the spring 903 is determined according to actual needs and meets the working needs, the right end of the round rod 904 is fixedly connected with a square plate 901, the upper surface of the square plate 901 is fixedly connected with a vertical rod 902, the vertical rod 902 penetrates the tailstock 5 and is slidably connected with the slideway processed on the tailstock 5, the vertical rod 902 can slide left and right on the slideway processed on the tailstock 5, the square plate 901 penetrates the slot 10 and is connected with the slot 10 are socketed, and the left and right movement of the vertical rod 902 can drive the square plate 901 to move left and right in the slot 10. The left end of the spring 903 is fixedly connected to the inner wall of the slot 10, and the right end of the spring 903 is fixedly connected to the left end of the square plate 901. A second internal threaded hole 905 is processed in the square plate 901, and the second internal threaded hole 905 can pass through the bolt. The left end of the tail stock 5 is fixedly connected to the shock absorbing rod 6, and the specific working method of the shock absorbing rod 6 has been disclosed in the authorization announcement number "CN220577448U".

[0026] Refer to the attached Figure 1-4 :

[0027] The rear suspension rocker arm anti-friction structure 4 includes a suspension rod 401, a rubber pad 404 is fixedly connected to the surface of the suspension rod 401, the surface of the rubber pad 404 is movably connected to the surface of the friction disk 403, the rubber pad 404 can rotate on the surface of the friction disk 403, and circular holes are processed in the rubber pad 404 and the friction disk 403. A rod mounting ear 402 is fixedly connected to the surface of the friction disk 403, and the rod mounting ear 402 is fixedly connected to the surface of the bent plate 1. A rotating rod 405 is fixedly connected to the surface of the suspension rod 401, and the rotating rod 405 passes through the circular holes of the rubber pad 404 and the friction disk 403 respectively and is movably connected to the rod mounting ear 402 through a bearing. The movement of the suspension rod 401 can drive the rotating rod 405 to be movably connected in the rod mounting ear 402.

[0028] Working principle:

[0029] Move the damping rod 6 and the tailstock 5 to a suitable position on the back of the bending plate 1, and then prepare for subsequent work.

[0030] Motorcycle shock absorber fixing work:

[0031] When the positions of the shock-absorbing rod 6 and the tailstock 5 need to be fixed, the vertical rod 902 is manually pulled to the right, so that the vertical rod 902 slides to the right on the slideway processed on the tailstock 5, driving the square plate 901 and the round rod 904 to move to the right, stretching the spring 903, and moving the square plate 901 to the right in the slot 10, so that the second internal threaded hole 905 is aligned with the first internal threaded hole 8, and then the first internal threaded hole 8 and the second internal threaded hole 905 are penetrated by bolts to fix the position of the square plate 901, and the shock-absorbing rod 6 and the tailstock 5 are fixed in position by cooperating with the fixed position of the equipment above the shock-absorbing rod 6.

[0032] Rear suspension rocker arm anti-friction work:

[0033] When the suspension rod 401 needs to be moved, the suspension rod 401 is manually rotated to the left or right, driving the rotating rod 405 to move left and right through the bearing in the rod mounting ear 402. The suspension rod 401 and the rod mounting ear 402 are moved through the rubber pad 404 and the friction disk 403 to prevent the suspension rod 401 from directly contacting the rod mounting ear 402 and causing no damage due to long-term movement. The cooperation of the friction disk 403 does not hinder the suspension rod 401 from moving left and right.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A rear suspension rocker arm structure for a motorcycle, comprising a bent plate (1) and a suspension rocker arm (3), wherein the surface of the bent plate (1) is fixedly connected to the surface of the suspension rocker arm (3), and characterized in that: A shock-absorbing mounting ear (7) is fixedly connected to the left side of the surface of the bent plate (1), a first internal threaded hole (8) is machined inside the bent plate (1), the back of the bent plate (1) is movably connected to the tail seat (5) via a pin, a slot (10) is machined inside the tail seat (5), a motorcycle shock-absorbing fixing structure (9) is arranged in the slot (10), and a rear suspension rocker anti-friction structure (4) is arranged on the upper end of the surface of the bent plate (1).

2. A rear suspension rocker arm structure for motorcycle according to claim 1, characterized in that: The motorcycle shock-absorbing fixed structure (9) comprises a spring (903), the inner wall of the spring (903) is fixedly connected to a round rod (904), the right end of the round rod (904) is fixedly connected to a square plate (901), the upper surface of the square plate (901) is fixedly connected to a vertical rod (902), the vertical rod (902) passes through the tailstock (5) and is slidably connected to a slideway processed on the tailstock (5), and the square plate (901) passes through the slot (10) and is sleeved with the slot (10).

3. A rear suspension rocker arm structure for motorcycle according to claim 2, characterized in that: The left end of the spring (903) is fixedly connected to the inner wall of the slot (10), and the right end of the spring (903) is fixedly connected to the left end of the square plate (901).

4. A rear suspension rocker arm structure for motorcycle according to claim 2, characterized in that: A second internal threaded hole (905) is machined in the square plate (901), and a damping rod (6) is fixedly connected to the left end of the tailstock (5).

5. The rear suspension rocker arm structure for motorcycle according to claim 1, characterized in that: The rear suspension rocker anti-friction structure (4) comprises a suspension rod (401), a rubber pad (404) is fixedly connected to the surface of the suspension rod (401), the surface of the rubber pad (404) is movably connected to the surface of the friction plate (403), circular holes are processed in the rubber pad (404) and the friction plate (403), a rod mounting lug (402) is fixedly connected to the surface of the friction plate (403), the rod mounting lug (402) is fixedly connected to the surface of the bent plate (1), a rotating rod (405) is fixedly connected to the surface of the suspension rod (401), and the rotating rod (405) passes through the circular holes of the rubber pad (404) and the friction plate (403) respectively and is movably connected to the rod mounting lug (402) through a bearing.

6. The rear suspension rocker arm structure for motorcycle according to claim 1, characterized in that: A flat fork mounting lug (2) is fixedly connected to the middle of the surface of the bent plate (1), and a suspension rocker arm (3) is fixedly connected to the upper end of the surface of the bent plate (1).

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