Durable motorcycle mudguard

By designing sliding protective components and adjustable mounting brackets on motorcycle fenders, the fender is vulnerable to damage and limited application range when operating in tight spaces, achieving higher durability and a wider range of application.

CN223031153UActive Publication Date: 2025-06-27CHANGZHOU BENZHOU MASCH CO LTD
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Patent Information

Application Number
CN202421998292.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-06-27
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

Existing motorcycle fenders are prone to damage when turning or turning in narrow spaces, and due to different tire sizes, the scope of application of fenders is limited.

Method used

A durable motorcycle fender is designed including a fender body and a mounting bracket. The bottom of the fender body is provided with a sliding first and second protective assembly, which achieves multi-directional protection through a connecting rod and a shock absorbing spring, and adapts to tires of different sizes through an adjustable mounting bracket.

Benefits of technology

It effectively reduces the possibility of damage of fenders when operating in narrow spaces, improves the durability and service life of fenders, and expands its scope of application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a durable motorcycle fender which comprises a fender body and an installation support. A first protection assembly is arranged at the bottom of the fender body and comprises a first protection plate. A plurality of connecting rods are arranged on the mudguard body, one end of each connecting rod is coaxially connected with a connecting nut, the connecting nuts are embedded in the inner wall of the mudguard body, the other end of each connecting rod sequentially penetrates through the mudguard body and the first protection plate, and the connecting rods are in threaded connection with first connecting nuts and second connecting nuts; the first connecting nut abuts against the outer wall of the fender body, a first caulking groove is formed in the face, away from the fender body, of the first protection plate, the second connecting nut abuts against the inner wall of the first caulking groove, a first damping spring is arranged on the connecting rod, and one end of the first damping spring abuts against the first connecting nut. The other end of the first damping spring abuts against the face, close to the fender body, of the first protection plate. The fender has the effect of prolonging the service life of the fender.
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Description

Technical Field

[0001] The utility model relates to the field of mudguards, in particular to a durable motorcycle mudguard. Background Art

[0002] The main function of the mudguard of a motorcycle is to prevent mud or rain from splashing and polluting the body of the motorcycle and the riders during the driving process of the motorcycle. Therefore, the mudguard is an important accessory for motorcycles. Most of the mudguards on the market now are made of plastic. Installation brackets are provided on both sides of the mudguard, and the two installation brackets are directly fixed and installed between the left and right front shock absorbers of the motorcycle through bolts.

[0003] The mudguards of the prior art have several disadvantages:

[0004] First, when the motorcycle makes turning, U-turn and other movements in a narrow space, the mudguard will be scratched or impacted, resulting in damage to the mudguard;

[0005] Second, since the mudguard of the motorcycle is manufactured according to the tire size of the motorcycle, and because the tire sizes of many motorcycles are different, a mudguard can only be installed on tires of one size, and the scope of application is limited. Content of the Utility Model

[0006] In order to solve the above technical problems, the present application provides a durable motorcycle mudguard.

[0007] The durable motorcycle mudguard provided by the present application adopts the following technical solutions:

[0008] A durable motorcycle mudguard includes a mudguard body and installation brackets. Two groups of installation brackets are arranged along the width direction of the mudguard, and the mudguard body is connected to the shock absorber bracket of the motorcycle through the installation brackets;

[0009] A first protection component is arranged at the bottom of the mudguard body. The first protection component includes a first protection plate, and the first protection plate is slidably arranged outside the mudguard body and moves in a direction close to or away from the mudguard body;

[0010] A plurality of connecting rods are provided on the fender body. Threaded segments are provided at both ends of each connecting rod. One end of the connecting rod is coaxially connected with a connecting nut, and the connecting nut is embedded in the inner wall of the fender body. The other end of the connecting rod sequentially passes through the fender body and the first protective plate. A first connecting nut and a second connecting nut are threadedly connected to the connecting rod. The first connecting nut abuts against the outer wall of the fender body. A first embedding groove is formed on the surface of the first protective plate away from the fender body, and the second connecting nut abuts against the inner wall of the first embedding groove. A first shock-absorbing spring is provided on the connecting rod. One end of the first shock-absorbing spring abuts against the first connecting nut, and the other end of the first shock-absorbing spring abuts against the surface of the first protective plate close to the fender body.

[0011] Preferably, two connecting rods are arranged at intervals along the length direction of the first protective plate.

[0012] Preferably, second protective components are provided on both sides in the width direction of the fender body. The second protective components include second protective plates, and the second protective plates are slidably arranged outside the fender body and move in a direction close to or away from the fender body;

[0013] A plurality of mounting rods are provided on the fender body. Threaded segments are provided at both ends of each mounting rod. One end of the mounting rod is coaxially mounted with a mounting nut, and the mounting nut is embedded in the inner wall of the fender body. The other end of the mounting rod sequentially passes through the fender body and the second protective plate. A first mounting nut and a second mounting nut are threadedly connected to the mounting rod. The first mounting nut abuts against the outer wall of the fender body. A second embedding groove is formed on the surface of the second protective plate away from the fender body, and the second mounting nut abuts against the inner wall of the second embedding groove. A second shock-absorbing spring is provided on the mounting rod. One end of the second shock-absorbing spring abuts against the first mounting nut, and the other end of the second shock-absorbing spring abuts against the surface of the second protective plate close to the fender body.

[0014] Preferably, three mounting rods correspond to each second protective plate, and the three mounting rods are arranged at intervals along the circumferential direction of the second protective plate.

[0015] Preferably, each mounting bracket includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are cross-connected, and a first fixing plate and a second fixing plate are respectively arranged at both ends of each side of the fender body;

[0016] The first mounting plate includes a first plate body and a second plate body. One end of the first plate body is rotatably connected to the first fixing plate, the other end of the first plate body is slidably connected to the second plate body, and the first plate body and the second plate body are fixed by a first locking component;

[0017] The second mounting plate includes a third plate body and a fourth plate body. One end of the third plate body is rotatably connected to the second fixing plate, and the other end of the third plate body is slidably connected to the fourth plate body. The third plate body and the fourth plate body are fixed by a second locking assembly;

[0018] The second plate body and the fourth plate body are rotatably connected.

[0019] Preferably, a first strip-shaped groove is formed on the first plate body, and a second strip-shaped groove is formed on the second plate body. The second strip-shaped groove penetrates through one end of the second plate body close to the first fixing plate, and the first strip-shaped groove and the second strip-shaped groove are communicated; the first locking assembly includes a first slider, a first locking screw, and a first locking nut. The first slider is fixedly connected in the first strip-shaped groove, the first slider slides in the second strip-shaped groove, the first locking screw passes through the second strip-shaped groove, and the first locking nut abuts against the side of the second plate body facing away from the first plate body;

[0020] A third strip-shaped groove is formed on the third plate body, and a fourth strip-shaped groove is formed on the fourth plate body. The fourth strip-shaped groove penetrates through one end of the fourth plate body close to the second fixing plate, and the third strip-shaped groove and the fourth strip-shaped groove are communicated; the second locking assembly includes a second slider, a second locking screw, and a second locking nut. The second slider is fixedly connected in the third strip-shaped groove, the second slider slides in the fourth strip-shaped groove, the second locking screw passes through the fourth strip-shaped groove, and the second locking nut abuts against the side of the fourth plate body facing away from the third plate body.

[0021] Preferably, first limiting blocks are arranged on both sides of the first slider, and first limiting grooves for the first limiting blocks to slide are formed on the inner wall of the second strip-shaped groove;

[0022] Second limiting blocks are arranged on both sides of the second slider, and second limiting grooves for the second limiting blocks to slide are formed on the inner wall of the fourth strip-shaped groove.

[0023] Preferably, the first plate body and the first fixing plate are locked by a first fastening assembly. The first fastening assembly includes a first fastening bolt and a first fastening nut. The first fastening bolt sequentially passes through the first plate body and the first fixing plate and is threadedly connected to the first fastening nut, and the first fastening nut abuts against the first fixing plate;

[0024] The third plate body and the second fixing plate are locked by a second fastening assembly. The second fastening assembly includes a second fastening bolt and a second fastening nut. The second fastening bolt sequentially passes through the second fixing plate and the third plate body and is threadedly connected to the second fastening nut, and the second fastening nut abuts against the third plate body;

[0025] The second plate body and the fourth plate body are locked by a third fastening assembly. The third fastening assembly includes a third fastening bolt and a third fastening nut. The third fastening bolt sequentially passes through the second plate body and the fourth plate body and is threadedly connected to the third fastening nut. The third fastening nut abuts against the fourth plate body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When a motorcycle makes turning maneuvers such as U-turns and turns in a narrow space, the first protection assembly and the second protection assembly provide multi-directional protection for the fender body, reducing the possibility of the fender being scratched or impacted, minimizing damage to the fender, and improving the durability and service life of the fender.

[0028] 2. Before installing the fender, first adjust the size of the mounting bracket according to the tire size. When adjusting, loosen the first locking nut, the second locking nut, the first fastening nut, the second fastening nut, and the third fastening nut, then adjust the lengths of the first mounting plate and the second mounting plate, and then tighten the first locking nut, the second locking nut, the first fastening nut, the second fastening nut, and the third fastening nut to complete the adjustment. When installing the fender, pass a mating bolt through the first and second elongated slots on the first mounting plate and the shock absorber bracket and tighten with a mating nut to fix the first mounting plate. Then pass a mating bolt through the third and fourth elongated slots on the second mounting plate and the shock absorber bracket and tighten with a mating nut to fix the second mounting plate. Fixing the two mounting brackets to the shock absorber bracket of the motorcycle completes the installation, expanding the applicable range of the fender. Description of the Drawings

[0029] Figure 1 is an overall structural schematic diagram of a durable motorcycle fender in an embodiment of the present application.

[0030] Figure 2 is a structural schematic diagram for showing the first limit block in an embodiment of the present application.

[0031] Figure 3 is a structural schematic diagram for showing the second limit block in an embodiment of the present application.

[0032] Figure 4 is a structural schematic diagram for showing the first protection assembly in an embodiment of the present application.

[0033] Figure 5 is a structural schematic diagram for showing the second protection assembly in an embodiment of the present application.

[0034] Description of reference numerals: 1, fender body; 11, first fixing plate; 12, second fixing plate; 2, mounting bracket; 21, first mounting plate; 211, first plate body; 2111, first strip-shaped groove; 212, second plate body; 2121, second strip-shaped groove; 22, second mounting plate; 221, third plate body; 2211, third strip-shaped groove; 222, fourth plate body; 2221, fourth strip-shaped groove; 3, first locking assembly; 31, first slider; 311, first limiting block; 312, first limiting groove; 32, first locking screw; 33, first locking nut; 4, first fastening assembly; 41, first fastening bolt; 42, first fastening nut; 5, second locking assembly; 51, second slider; 511, second limiting block; 512, second limiting groove; 52, second locking screw; 53, second locking nut; 6, second fastening assembly; 61, second fastening bolt; 62, second fastening nut; 7, third fastening assembly; 71, third fastening bolt; 72, third fastening nut; 8, first protection assembly; 81, first protection plate; 82, connecting rod; 83, connecting nut; 84, first connecting nut; 85, second connecting nut; 86, first shock-absorbing spring; 9, second protection assembly; 91, second protection plate; 92, mounting rod; 93, mounting nut; 94, first mounting nut; 95, second mounting nut; 96, second shock-absorbing spring. Detailed implementation manners

[0035] The following further describes the present application in detail with reference to the Figures 1-5 accompanying drawings.

[0036] An embodiment of the present application discloses a durable motorcycle fender.

[0037] Referring to Figures 1-5 , the durable motorcycle fender includes a fender body 1 and a mounting bracket 2. Two sets of mounting brackets 2 are arranged along the width direction of the fender. The fender body 1 is connected to the shock absorber bracket of the motorcycle through the mounting bracket 2.

[0038] Each mounting bracket 2 includes a first mounting plate 21 and a second mounting plate 22. The first mounting plate 21 and the second mounting plate 22 are cross-connected. The first fixing plate 11 and the second fixing plate 12 are respectively arranged at both ends of each side of the fender body 1 in the width direction.

[0039] The first mounting plate 21 includes a first plate body 211 and a second plate body 212. One end of the first plate body 211 is rotatably connected to the first fixing plate 11, and the other end of the first plate body 211 is slidably connected to the second plate body 212. A first strip-shaped groove 2111 is formed in the first plate body 211, and a second strip-shaped groove 2121 is formed in the second plate body 212. The second strip-shaped groove 2121 penetrates through one end of the second plate body 212 close to the first fixing plate 11, and the first strip-shaped groove 2111 is communicated with the second strip-shaped groove 2121.

[0040] The first plate body 211 and the second plate body 212 are fixed by a first locking assembly 3. The first locking assembly 3 includes a first slider 31, a first locking screw 32, and a first locking nut 33. The first slider 31 is fixedly connected in the first strip-shaped groove 2111, the first slider 31 slides in the second strip-shaped groove 2121, the first locking screw 32 passes through the second strip-shaped groove 2121, and the first locking nut 33 abuts against the surface of the second plate body 212 facing away from the first plate body 211. First limiting blocks 311 are arranged on both sides of the first slider 31, and first limiting grooves 312 for the first limiting blocks 311 to slide are formed on the inner wall of the second strip-shaped groove 2121, improving the sliding stability of the first plate body 211 and the second plate body 212.

[0041] The first plate body 211 and the first fixing plate 11 are locked by a first fastening assembly 4. The first fastening assembly 4 includes a first fastening bolt 41 and a first fastening nut 42. The first fastening bolt 41 sequentially passes through the first plate body 211 and the first fixing plate 11 and is threadedly connected to the first fastening nut 42, and the first fastening nut 42 abuts against the first fixing plate 11.

[0042] The second mounting plate 22 includes a third plate body 221 and a fourth plate body 222. One end of the third plate body 221 is rotatably connected to the second fixing plate 12, the other end of the third plate body 221 is slidably connected to the fourth plate body 222. A third strip-shaped groove 2211 is formed on the third plate body 221, a fourth strip-shaped groove 2221 is formed on the fourth plate body 222, the fourth strip-shaped groove 2221 penetrates through one end of the fourth plate body 222 close to the second fixing plate 12, and the third strip-shaped groove 2211 and the fourth strip-shaped groove 2221 communicate with each other.

[0043] The third plate body 221 and the fourth plate body 222 are fixed by a second locking assembly 5. The second locking assembly 5 includes a second slider 51, a second locking screw 52, and a second locking nut 53. The second slider 51 is fixedly connected in the third strip-shaped groove 2211, the second slider 51 slides in the fourth strip-shaped groove 2221, the second locking screw 52 passes through the fourth strip-shaped groove 2221, and the second locking nut 53 abuts against the surface of the fourth plate body 222 facing away from the third plate body 221. Second limiting blocks 511 are arranged on both sides of the second slider 51, and second limiting grooves 512 for the second limiting blocks 511 to slide are formed on the inner wall of the fourth strip-shaped groove 2221, improving the sliding stability of the third plate body 221 and the fourth plate body 222.

[0044] The third plate body 221 and the second fixing plate 12 are locked by a second fastening assembly 6. The second fastening assembly 6 includes a second fastening bolt 61 and a second fastening nut 62. The second fastening bolt 61 sequentially passes through the second fixing plate 12 and the third plate body 221 and is threadedly connected to the second fastening nut 62, and the second fastening nut 62 abuts against the third plate body 221.

[0045] The second plate body 212 and the fourth plate body 222 are rotatably connected. The second plate body 212 and the fourth plate body 222 are locked by a third fastening assembly 7. The third fastening assembly 7 includes a third fastening bolt 71 and a third fastening nut 72. The third fastening bolt 71 sequentially passes through the second plate body 212 and the fourth plate body 222 and is threadedly connected to the third fastening nut 72. The third fastening nut 72 abuts against the fourth plate body 222.

[0046] Before installing the fender, first adjust the size of the mounting bracket 2 according to the tire size. When adjusting, loosen the first locking nut 33, the second locking nut 53, the first fastening nut 42, the second fastening nut 62, and the third fastening nut 72, then adjust the lengths of the first mounting plate 21 and the second mounting plate 22, and then tighten the first locking nut 33, the second locking nut 53, the first fastening nut 42, the second fastening nut 62, and the third fastening nut 72 to complete the adjustment. When installing the fender, pass a matching bolt through the first strip-shaped groove 2111 and the second strip-shaped groove 2121 on the first mounting plate 21 and the shock absorber bracket and then tighten with a matching nut to fix the first mounting plate 21. Then pass a matching bolt through the third strip-shaped groove 2211 and the fourth strip-shaped groove 2221 on the second mounting plate 22 and the shock absorber bracket and then tighten with a matching nut to fix the second mounting plate 22. Fixing the two mounting brackets 2 to the shock absorber bracket of the motorcycle completes the installation, expanding the applicable range of the fender.

[0047] A first protection assembly 8 is provided at the bottom of the fender body 1. The first protection assembly 8 includes a first protection plate 81. The first protection plate 81 is slidably disposed outside the fender body 1 and moves in a direction close to or away from the fender body 1.

[0048] A plurality of connecting rods 82 are provided on the fender body 1. Two connecting rods 82 are arranged at intervals along the length direction of the first protection plate 81.

[0049] Threaded segments are provided at both ends of each connecting rod 82. One end of the connecting rod 82 is coaxially connected with a connecting nut 83. The connecting nut 83 is embedded in the inner wall of the fender body 1. The other end of the connecting rod 82 sequentially passes through the fender body 1 and the first protection plate 81. A first connecting nut 84 and a second connecting nut 85 are threadedly connected to the connecting rod 82. The first connecting nut 84 abuts against the outer wall of the fender body 1. A first embedding groove for embedding the first connecting nut 84 is formed on the surface of the first protection plate 81 away from the fender body 1. The first connecting nut 84 abuts against the inner wall of the first embedding groove. A first shock-absorbing spring 86 is provided on the connecting rod 82. One end of the first shock-absorbing spring 86 abuts against the first connecting nut 84, and the other end of the first shock-absorbing spring 86 abuts against the surface of the first protection plate 81 close to the fender body 1.

[0050] On both sides of the fender body 1 in the width direction, a second protection component 9 is provided. The second protection component 9 includes a second protection plate 91, and the second protection plate 91 is slidably arranged outside the fender body 1 and moves in a direction close to or away from the fender body 1.

[0051] Multiple mounting rods 92 are arranged on the fender body 1. Each second protection plate 91 corresponds to three mounting rods 92, and the three mounting rods 92 are arranged at intervals along the circumferential direction of the second protection plate 91.

[0052] Threaded sections are provided at both ends of each mounting rod 92. One end of the mounting rod 92 is coaxially installed with a mounting nut 93, and the mounting nut 93 is embedded in the inner wall of the fender body 1. The other end of the mounting rod 92 sequentially passes through the fender body 1 and the second protection plate 91. A first mounting nut 94 and a second mounting nut 95 are threadedly connected to the mounting rod 92. The first mounting nut 94 abuts against the outer wall of the fender body 1. A second embedding groove for embedding the second mounting nut 95 is provided on the side of the second protection plate 91 away from the fender body 1, and the second mounting nut 95 abuts against the inner wall of the second embedding groove. A second shock-absorbing spring 96 is arranged on the mounting rod 92. One end of the second shock-absorbing spring 96 abuts against the first mounting nut 94, and the other end of the second shock-absorbing spring 96 abuts against the side of the second protection plate 91 close to the fender body 1.

[0053] When the motorcycle makes turning, turning around and other actions in a narrow space, the first protection plate 81 slides along the connecting rod 82 under the action of the first shock-absorbing spring 86 to achieve the function of shock absorption and protection. The second protection plate 91 slides along the mounting rod 92 under the action of the second shock-absorbing spring 96 to achieve the function of shock absorption and protection. The first protection component 8 and the second protection component 9 provide multi-faceted protection for the fender body 1, reduce the possibility of the fender being scratched or impacted, reduce the damage of the fender, and improve the durability and service life of the fender.

[0054] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A durable motorcycle fender, characterized in that: It comprises a fender body (1) and a mounting bracket (2), wherein two groups of the mounting brackets (2) are arranged along the width direction of the fender, and the fender body (1) is connected to a shock-absorbing bracket of a motorcycle via the mounting bracket (2); A first protection component (8) is provided at the bottom of the fender body (1), the first protection component (8) comprising a first protection plate (81), the first protection plate (81) being slidably arranged on the outside of the fender body (1) and moving in a direction approaching or moving away from the fender body (1); The fender body (1) is provided with a plurality of connecting rods (82), each of the connecting rods (82) being provided with threaded sections at both ends, one end of the connecting rod (82) being coaxially connected with a connecting nut (83), the connecting nut (83) being embedded in the inner wall of the fender body (1), the other end of the connecting rod (82) passing through the fender body (1) and the first protective plate (81) in sequence, the connecting rod (82) being threadedly connected with a first connecting nut (84) and a second connecting nut (85), the first connecting nut (85) and the second connecting nut (86) being threadedly connected to the first fender body (1). A connecting nut (84) is in contact with the outer wall of the fender body (1); a first embedding groove is provided on a side of the first protective plate (81) away from the fender body (1); the second connecting nut (85) is in contact with the inner wall of the first embedding groove; a first shock absorbing spring (86) is provided on the connecting rod (82); one end of the first shock absorbing spring (86) is in contact with the first connecting nut (84); and the other end of the first shock absorbing spring (86) is in contact with a side of the first protective plate (81) close to the fender body (1).

2. The durable motorcycle fender according to claim 1, characterized in that: Two connecting rods (82) are arranged at intervals along the length direction of the first protective plate (81).

3. The durable motorcycle fender according to claim 1, characterized in that: Second protection components (9) are arranged on both sides of the fender body (1) in the width direction, and the second protection components (9) include second protection plates (91). The second protection plates (91) are slidably arranged on the outside of the fender body (1) and move in a direction approaching or moving away from the fender body (1). The fender body (1) is provided with a plurality of mounting rods (92), each of the mounting rods (92) being provided with threaded sections at both ends, a mounting nut (93) being coaxially mounted on one end of the mounting rod (92), the mounting nut (93) being embedded in the inner wall of the fender body (1), the other end of the mounting rod (92) passing through the fender body (1) and the second protective plate (91) in sequence, the mounting rod (92) being threadedly connected with a first mounting nut (94) and a second mounting nut (95), the first mounting nut (94) and the second mounting nut (95) being threadedly mounted on the mounting rod (92 ...3) and the second mounting nut (93) being embedded in the inner wall of the fender body (1). A mounting nut (94) is in contact with the outer wall of the fender body (1); a second groove is provided on a side of the second protective plate (91) away from the fender body (1); the second mounting nut (95) is in contact with the inner wall of the second groove; a second damping spring (96) is provided on the mounting rod (92); one end of the second damping spring (96) is in contact with the first mounting nut (94); and the other end of the second damping spring (96) is in contact with a side of the second protective plate (91) close to the fender body (1).

4. The durable motorcycle fender according to claim 3, characterized in that: Each of the second protective plates (91) corresponds to three mounting rods (92), and the three mounting rods (92) are arranged at intervals along the circumference of the second protective plate (91).

5. The durable motorcycle fender according to claim 1, characterized in that: Each of the mounting brackets (2) comprises a first mounting plate (21) and a second mounting plate (22), the first mounting plate (21) and the second mounting plate (22) being cross-connected, and a first fixing plate (11) and a second fixing plate (12) are respectively provided at two ends of each side of the fender body (1); The first mounting plate (21) comprises a first plate body (211) and a second plate body (212); one end of the first plate body (211) is rotatably connected to the first fixing plate (11); the other end of the first plate body (211) is slidably connected to the second plate body (212); the first plate body (211) and the second plate body (212) are fixed by a first locking assembly (3); The second mounting plate (22) comprises a third plate body (221) and a fourth plate body (222), one end of the third plate body (221) is rotatably connected to the second fixing plate (12), the other end of the third plate body (221) is slidably connected to the fourth plate body (222), and the third plate body (221) and the fourth plate body (222) are fixed by a second locking assembly (5); The second plate body (212) and the fourth plate body (222) are rotatably connected.

6. The durable motorcycle fender according to claim 5, characterized in that: The first plate body (211) is provided with a first strip groove (2111), and the second plate body (212) is provided with a second strip groove (2121), the second strip groove (2121) passes through one end of the second plate body (212) close to the first fixed plate (11), and the first strip groove (2111) and the second strip groove (2121) are connected; the first locking assembly (3) comprises a first slider (31), a first locking screw (32), and a first locking nut (33), the first slider (31) is fixedly connected to the first strip groove (2111), the first slider (31) slides in the second strip groove (2121), the first locking screw (32) passes through the second strip groove (2121), and the first locking nut (33) abuts against a side of the second plate body (212) facing away from the first plate body (211); The third plate body (221) is provided with a third strip groove (2211), and the fourth plate body (222) is provided with a fourth strip groove (2221), the fourth strip groove (2221) passes through an end of the fourth plate body (222) close to the second fixed plate (12), and the third strip groove (2211) and the fourth strip groove (2221) are connected; the second locking assembly (5) comprises a second slider (51), a second locking screw (52), and a second locking nut (53), the second slider (51) is fixedly connected to the third strip groove (2211), the second slider (51) slides in the fourth strip groove (2221), the second locking screw (52) passes through the fourth strip groove (2221), and the second locking nut (53) abuts against a side of the fourth plate body (222) facing away from the third plate body (221).

7. The durable motorcycle fender according to claim 6, characterized in that: First limiting blocks (311) are arranged on both sides of the first sliding block (31), and a first limiting groove (312) for the first limiting block (311) to slide is opened on the inner wall of the second strip-shaped groove (2121); Second limiting blocks (511) are arranged on both sides of the second sliding block (51), and second limiting grooves (512) for the second limiting blocks (511) to slide are opened on the inner wall of the fourth strip-shaped groove (2221).

8. The durable motorcycle fender according to claim 5, characterized in that: A first fastening assembly (4) is locked between the first plate body (211) and the first fixing plate (11), wherein the first fastening assembly (4) comprises a first fastening bolt (41) and a first fastening nut (42), wherein the first fastening bolt (41) passes through the first plate body (211) and the first fixing plate (11) in sequence and is threadedly connected to the first fastening nut (42), and the first fastening nut (42) abuts against the first fixing plate (11); The second fastening assembly (6) is locked between the third plate body (221) and the second fixing plate (12), the second fastening assembly (6) comprising a second fastening bolt (61) and a second fastening nut (62), the second fastening bolt (61) sequentially passes through the second fixing plate (12) and the third plate body (221) and is threadedly connected with the second fastening nut (62), and the second fastening nut (62) is in contact with the third plate body (221); The second plate body (212) and the fourth plate body (222) are locked by a third fastening assembly (7), and the third fastening assembly (7) includes a third fastening bolt (71) and a third fastening nut (72). The third fastening bolt (71) passes through the second plate body (212) and the fourth plate body (222) in sequence and is threadedly connected to the third fastening nut (72). The third fastening nut (72) abuts against the fourth plate body (222).