Motorcycle rear fork structure

By designing the connecting seat and anti-wear components in the rear fork structure of the motorcycle, the problem of large friction between the rear fork and the shaft is solved, extending the service life of the shaft and improving the lubrication effect.

CN222522802UActive Publication Date: 2025-02-25SHIYAN TONGLU IND
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Patent Information

Application Number
CN202421380674.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-02-25
Estimated Expiration
2034-06-17

AI Technical Summary

Technical Problem

In use, the rear flat fork structure of existing motorcycles has a large friction between the rear flat fork and the shaft, causing the shaft to wear and affecting the service life.

Method used

A motorcycle rear flat fork structure is designed, the first fork plate and the second fork plate are fixedly connected through the connecting seat, and anti-wear components are installed in the sleeve, including a shaft sleeve, ball, limit ring, etc., to reduce the The friction of the shaft. At the same time, an oiling component is provided to facilitate the lubrication operation of the shaft.

Benefits of technology

By increasing the connection strength of the rear fork structure and reducing the friction of the shaft, the service life of the shaft is extended, and the lubrication operation is simplified, thereby improving the lubrication effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rear fork structure of a motorcycle, which comprises a first fork plate, a second fork plate, a second fork plate and a connecting seat, the first fork plate is fixedly connected with the second fork plate through the connecting seat, and a sleeve is fixedly mounted at the top end of the first fork plate and the top end of the second fork plate; the anti-abrasion assembly is mounted in the sleeve; and the mounting seat is fixedly mounted at the bottom ends of the first fork plate and the second fork plate, a shaft groove is formed in the surface of the mounting seat, and an oil adding assembly is mounted in the mounting seat. By means of the arranged anti-abrasion assembly, the rotating shaft penetrating through the interior is conveniently protected after use, the rotating friction force of the rotating shaft is reduced, the damage degree of the rotating shaft is reduced, the service life of the rotating shaft is guaranteed, under the action of the arranged oil adding assembly, lubricating operation is conveniently conducted on the shaft installed in the shaft groove, lubricating oil can be better added to the shaft, and the service life of the rotating shaft is prolonged. Operation is simple, the rotating requirement of the shaft is met, and the lubricating effect is improved.
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Description

Technical Field

[0001] The utility model relates to a rear flat fork structure of a motorcycle. Background Art

[0002] A motorcycle is a two-wheeled or three-wheeled vehicle driven by a gasoline engine and steered by a handlebar. It is light, flexible and fast. It is widely used in patrolling, passenger and cargo transportation, and is also used as sports equipment. Generally speaking, motorcycles are divided into street bikes, road racing motorcycles, off-road motorcycles, cruisers, and touring bikes.

[0003] When the existing motorcycle rear flat fork structure is in use, after the existing motorcycle rear flat fork structure is installed, the friction between the rear flat fork and the shaft is relatively large, and long-term use easily causes the shaft to wear, thus affecting the service life of the shaft. Utility Model Content

[0004] The utility model provides a motorcycle rear flat fork structure to solve the technical problem that after the existing motorcycle rear flat fork structure is installed, the friction at the connection between the rear flat fork and the shaft is large, and the shaft is easily worn out after long-term use, which affects the service life of the shaft.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a motorcycle rear flat fork structure, the motorcycle rear flat fork structure comprising:

[0007] A first fork plate, wherein the first fork plate is fixedly connected to the second fork plate via a connecting seat, and sleeves are fixedly installed on top ends of the first fork plate and the second fork plate;

[0008] An anti-wear component, wherein the anti-wear component is installed in the sleeve;

[0009] The mounting seat is fixedly mounted on the bottom ends of the first fork plate and the second fork plate, an axial groove is provided on the surface of the mounting seat, and an oil filling assembly is installed in the mounting seat.

[0010] Furthermore, fixing blocks are fixedly installed on the top sides of the two opposite ends of the connecting seat, and the fixing blocks are fixedly connected to the fitted first fork plate and the second fork plate.

[0011] In the technical solution, the first fork plate is connected to the second fork plate via a connecting seat, and the connecting seat is fixedly connected to the first fork plate and the second fork plate respectively via a fixing block fixedly connected to the side surface, thereby improving the connection strength.

[0012] Furthermore, a sleeve is fixedly mounted on the top end of the first fork plate, and reinforcing seats are fixedly mounted on the two opposite side surfaces of the sleeve, and the sleeve is fixedly connected to the top end of the first fork plate via the reinforcing seats.

[0013] In this technical solution, the fixed connection strength between the sleeve and the first fork plate is guaranteed.

[0014] Furthermore, a sleeve is fixedly mounted on the top end of the second fork plate, and the top end of the second fork plate is fixedly connected to the side surface of the sleeve via a reinforcing seat.

[0015] In this technical solution, the fixed connection strength between the second fork plate and the sleeve is guaranteed.

[0016] Furthermore, the first fork plate is placed parallel to the second fork plate, and the sleeves fixedly connected to the top ends of the first fork plate and the second fork plate are coaxially arranged.

[0017] Furthermore, the anti-wear component includes a sleeve, a ball, a limit ring, a limit seat, a fixing ring, a fixing seat and a fixing ring. The sleeve is installed in the inner cavity of the sleeve, one end of the sleeve is fixedly installed with the limit seat, the outer surface of the limit seat is fixedly sleeved with the limit ring, the inner cavity of the sleeve is rotatably connected with the ball, the other end of the sleeve is connected to the fixing seat, the top side surface of the fixing seat is fixedly sleeved with the fixing ring, and the side surface of the fixing seat is provided with fixing bolts.

[0018] In this technical solution, the sleeve is arranged in the inner cavity of the sleeve, and the sleeve is fixed in the sleeve through a fixing seat. The shaft passes through the inner cavity of the sleeve, and the shaft is rotatably connected with the ball in the sleeve, thereby reducing the friction force of the rotation of the penetrating shaft, ensuring the service life of the shaft, and meeting the use needs of workers.

[0019] Furthermore, a plurality of balls are rotatably connected to the inner wall of the sleeve, and the plurality of balls are evenly distributed in an annular shape inside the sleeve.

[0020] Furthermore, the fixing seat is threadedly sleeved on the surface of the shaft sleeve, and four fixing bolts are distributed in an annular manner on the side surface of the fixing seat. The ends of the fixing bolts pass through the fixing seat and are threadedly connected to the side surface of the sleeve.

[0021] In the present technical solution, the fixing bolt is used to fix the fixing seat installed on the surface of the sleeve, so as to achieve the fixation of the connection between the fixing seat and the sleeve and ensure the stability of the connection between the sleeve and the sleeve.

[0022] Furthermore, the oil filling assembly includes an oil filling hole, a sealing plug, an oil inlet pipe, an oil filling cavity and a refueling hole. The oil filling hole is opened on the side surfaces of the first fork plate and the second fork plate, the oil filling hole is connected to the oil inlet pipe, the inner cavity of the oil filling hole is snap-connected with a sealing plug, the end of the oil inlet pipe is fixedly connected to the oil filling cavity, and the bottom side of the oil filling cavity is connected through the refueling hole opened in the mounting seat.

[0023] In the present technical solution, an oil filling hole is provided, and by removing the sealing plug, it is convenient for the worker to inject lubricating oil through the oil filling hole. The lubricating oil enters the oil filling hole through the oil inlet pipe and falls on the shaft surface through the oil filling hole, thereby realizing the lubrication operation of the shaft groove and rotating shaft. The operation is relatively simple, meets the rotation requirements of the shaft, and improves the lubrication effect.

[0024] Furthermore, there are several oil filling holes, the ends of which are connected to the inner cavity of the shaft groove, and the oil filling holes are distributed in a ring shape on the top side of the shaft groove.

[0025] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0026] The positive and progressive effects of the utility model are:

[0027] The motorcycle rear fork structure proposed above fixes the first fork plate and the second fork plate through a connecting seat, and is assisted in fixing by a fixing block, so as to improve the overall strength of the rear fork. The anti-wear component is provided, so as to facilitate protection of the internal rotating shaft after use, reduce the friction of the rotating shaft rotation, reduce the degree of damage to the rotating shaft, and ensure the service life of the rotating shaft. Through the action of the provided oiling component, it is convenient to lubricate the shaft installed in the shaft groove, so as to facilitate better adding of lubricating oil to the shaft. The operation is relatively simple, meets the rotation requirements of the shaft, and improves the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a three-dimensional structural schematic diagram of the rear flat fork structure of a motorcycle.

[0029] Figure 2 The utility model is a schematic diagram of the front and side cross-sectional connection structure of the shaft sleeve of the rear flat fork structure of a motorcycle.

[0030] Figure 3 The utility model is a schematic diagram of the oil filling assembly structure of the rear flat fork structure of a motorcycle.

[0031] Description of Reference Numerals

[0032] 1. First fork plate; 2. Second fork plate; 3. Reinforcement seat; 4. Sleeve; 5. Anti-wear component; 51. Bushing; 52. Ball; 53. Limiting ring; 54. Limiting seat; 55. Fixing bolt; 56. Fixing ring; 57. Fixing seat; 6. Mounting seat; 601. Shaft groove; 7. Oiling component; 71. Oiling hole; 72. Sealing plug; 73. Oil inlet pipe; 74. Adding chamber; 75. Oiling hole; 8. Connecting seat; 9. Fixing block. DETAILED DESCRIPTION

[0033] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0034] like Figure 1-3 As shown, the motorcycle rear flat fork structure includes:

[0035] A first fork plate 1, wherein the first fork plate 1 is fixedly connected to the second fork plate 2 via a connecting seat 8, and sleeves 4 are fixedly installed on top ends of the first fork plate 1 and the second fork plate 2;

[0036] An anti-wear component 5, wherein the anti-wear component 5 is installed in the sleeve 4;

[0037] The mounting seat 6 is fixedly mounted on the bottom ends of the first fork plate 1 and the second fork plate 2 , an axis groove 601 is provided on the surface of the mounting seat 6 , and an oil filling assembly 7 is installed inside the mounting seat 6 .

[0038] The first fork plate 1 and the second fork plate 2 are fixed by the connecting seat 8, and the fixing block 9 is used to assist in fixing, so as to improve the overall strength of the rear flat fork. The anti-wear component 5 is provided to facilitate protection of the internal rotating shaft after use, reduce the friction of the rotating shaft rotation, reduce the degree of damage to the rotating shaft, and ensure the service life of the rotating shaft. The oiling component 7 is provided to facilitate the lubrication operation of the shaft installed in the shaft groove 601, so as to facilitate better adding of lubricating oil to the shaft, the operation is relatively simple, meet the rotation requirements of the shaft, and improve the lubrication effect.

[0039] The top sides of opposite ends of the connection seat 8 are fixedly mounted with fixing blocks 9 , and the fixing blocks 9 are fixedly connected to the first fork plate 1 and the second fork plate 2 that are in contact with each other.

[0040] The first fork plate 1 is connected to the second fork plate 2 via a connecting seat 8, and the connecting seat 8 is fixedly connected to the first fork plate 1 and the second fork plate 2 via a fixing block 9 fixedly connected to the side surface, thereby improving the connection strength.

[0041] A sleeve 4 is fixedly installed on the top of the first fork plate 1, and reinforcing seats 3 are fixedly installed on the opposite side surfaces of the sleeve 4. The sleeve 4 is fixedly connected to the top of the first fork plate 1 through the reinforcing seat 3 to ensure the fixed connection strength between the sleeve 4 and the first fork plate 1.

[0042] A sleeve 4 is fixedly installed on the top end of the second fork plate 2, and the top end of the second fork plate 2 is fixedly connected to the side surface of the sleeve 4 through a reinforcing seat 3 to ensure the fixed connection strength between the second fork plate 2 and the sleeve 4.

[0043] The first fork plate 1 is placed parallel to the second fork plate 2, and the sleeve 4 fixedly connected to the top of the first fork plate 1 and the second fork plate 2 is coaxially arranged.

[0044] The anti-wear component 5 includes a sleeve 51, a ball 52, a limiting ring 53, a limiting seat 54, a fixing ring 56, a fixing seat 57 and a fixing ring 56. The sleeve 51 is installed in the inner cavity of the sleeve 4. The limiting seat 54 is fixedly installed at one end of the sleeve 51. The limiting ring 53 is fixedly sleeved on the outer surface of the limiting seat 54. The inner cavity of the sleeve 51 is rotatably connected with the ball 52. The other end of the sleeve 51 is connected to the fixing seat 57. The fixing ring 56 is fixedly sleeved on the top side surface of the fixing seat 57. The fixing bolts 55 are arranged on the side surface of the fixing seat 57.

[0045] The sleeve 51 is arranged in the inner cavity of the sleeve 4, and the sleeve 51 is fixed in the sleeve 4 by the fixing seat 57. The shaft passes through the inner cavity of the sleeve 51, and the shaft is rotatably connected with the ball 52 in the sleeve 51, which reduces the friction force of the rotation of the penetrating shaft, ensures the service life of the shaft, and meets the use needs of workers.

[0046] The inner wall of the shaft sleeve 51 is rotatably connected with a plurality of balls 52 , and the plurality of balls 52 are evenly distributed in an annular shape in the shaft sleeve 51 .

[0047] The fixing seat 57 is threadedly sleeved on the surface of the shaft sleeve 51 , and four fixing bolts 55 are distributed in an annular manner on the side surface of the fixing seat 57 . The ends of the fixing bolts 55 penetrate the fixing seat 57 and are threadedly connected to the side surface of the sleeve 4 .

[0048] The fixing bolt 55 is used to be installed on the fixing seat 57 on the surface of the shaft sleeve 51 for fixing, so as to achieve the connection fixation between the fixing seat 57 and the sleeve 4 and ensure the stability of the connection between the shaft sleeve 51 and the sleeve 4.

[0049] The oil filling assembly 7 includes an oil filling hole 71, a sealing plug 72, an oil inlet pipe 73, an adding chamber 74 and a refueling hole 75. The oil filling hole 71 is opened on the side surfaces of the first fork plate 1 and the second fork plate 2. The oil filling hole 71 is connected to the oil inlet pipe 73. The inner cavity of the oil filling hole 71 is snap-connected with the sealing plug 72. The end of the oil inlet pipe 73 is fixedly connected to the adding chamber 74. The bottom side of the adding chamber 74 is connected through the refueling hole 75 opened in the mounting seat 6.

[0050] The oil filling hole 71 is set, and by removing the sealing plug 72, it is convenient for the worker to inject lubricating oil through the oil filling hole 71. The lubricating oil enters the oil filling hole 71 through the oil inlet pipe 73 and falls on the shaft surface through the oil filling hole 71, thereby realizing the lubrication operation of the shaft groove 601. The operation is relatively simple, meets the rotation requirements of the shaft, and improves the lubrication effect.

[0051] There are a plurality of refueling holes 75 , the ends of which are connected to the inner cavity of the shaft groove 601 , and the refueling holes 75 are distributed in a ring shape on the top side of the shaft groove 601 .

[0052] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A motorcycle rear fork structure, characterized in that: The motorcycle rear flat fork structure comprises: A first fork plate (1), wherein the first fork plate (1) is fixedly connected to the second fork plate (2) via a connecting seat (8), and sleeves (4) are fixedly mounted on the top ends of the first fork plate (1) and the second fork plate (2); An anti-wear component (5), wherein the anti-wear component (5) is installed in the sleeve (4); A mounting seat (6) is fixedly mounted on the bottom ends of the first fork plate (1) and the second fork plate (2), an axis groove (601) is provided on the surface of the mounting seat (6), and an oil filling assembly (7) is installed in the mounting seat (6).

2. The motorcycle rear fork structure according to claim 1, characterized in that: The top sides of the two opposite ends of the connection seat (8) are fixedly mounted with fixing blocks (9), and the fixing blocks (9) are fixedly connected to the fitted first fork plate (1) and the second fork plate (2).

3. The motorcycle rear fork structure according to claim 1, characterized in that: A sleeve (4) is fixedly mounted on the top of the first fork plate (1), and reinforcing seats (3) are fixedly mounted on the opposite two side surfaces of the sleeve (4). The sleeve (4) is fixedly connected to the top of the first fork plate (1) via the reinforcing seats (3).

4. The motorcycle rear fork structure according to claim 1, characterized in that: A sleeve (4) is fixedly mounted on the top end of the second fork plate (2), and the top end of the second fork plate (2) is fixedly connected to the side surface of the sleeve (4) via a reinforcing seat (3).

5. The motorcycle rear fork structure according to claim 1, characterized in that: The first fork plate (1) and the second fork plate (2) are placed in parallel, and the sleeve (4) fixedly connected to the top end of the first fork plate (1) and the second fork plate (2) are arranged coaxially.

6. The motorcycle rear fork structure according to claim 1, characterized in that: The anti-wear component (5) comprises a shaft sleeve (51), a ball (52), a limiting ring (53), a limiting seat (54), a fixing ring (56), a fixing seat (57) and a fixing ring (56); the shaft sleeve (51) is installed in the inner cavity of the sleeve (4); one end of the shaft sleeve (51) is fixedly installed with the limiting seat (54); the outer surface of the limiting seat (54) is fixedly sleeved with the limiting ring (53); the inner cavity of the shaft sleeve (51) is rotatably connected with the ball (52); the other end of the shaft sleeve (51) is connected with the fixing seat (57); the top side surface of the fixing seat (57) is fixedly sleeved with the fixing ring (56); and the side surface of the fixing seat (57) is provided with a fixing bolt (55).

7. The motorcycle rear fork structure according to claim 6, characterized in that: The inner wall of the shaft sleeve (51) is rotatably connected with a plurality of balls (52), and the plurality of balls (52) are evenly distributed in an annular shape inside the shaft sleeve (51).

8. The motorcycle rear fork structure according to claim 6, characterized in that: The fixing seat (57) is threadedly sleeved on the surface of the shaft sleeve (51), and four fixing bolts (55) are distributed in an annular manner on the side surface of the fixing seat (57). The ends of the fixing bolts (55) penetrate the fixing seat (57) and are threadedly connected to the side surface of the sleeve (4).

9. The motorcycle rear fork structure according to claim 1, characterized in that: The oil filling assembly (7) comprises an oil filling hole (71), a sealing plug (72), an oil inlet pipeline (73), an adding cavity (74) and a refueling hole (75); the oil filling hole (71) is provided on the side surfaces of the first fork plate (1) and the second fork plate (2); the oil filling hole (71) is connected to the oil inlet pipeline (73); the inner cavity of the oil filling hole (71) is snap-connected with the sealing plug (72); the end of the oil inlet pipeline (73) is fixedly connected to the adding cavity (74); the bottom side of the adding cavity (74) is connected via the refueling hole (75) provided in the mounting seat (6).

10. The motorcycle rear fork structure according to claim 9, characterized in that: There are a plurality of refueling holes (75), the ends of which are in communication with the inner cavity of the shaft groove (601), and the refueling holes (75) are distributed in a ring shape on the top side of the shaft groove (601).