Plastic rear fender integrated assembly structure

Abstract

The utility model belongs to motorcycle assembly technical field, concretely relates to a plastic rear mudguard integrated assembly structure, including the frame rear fork, the frame rear fork whole is U type structure frame, is provided with the fixed plate at its terminal opening place one side, be provided with the screw hole A of even distribution on the fixed plate, and be connected with the aluminium alloy connecting plate through the screw hole A, be provided with the rear mudguard body on the aluminium alloy connecting plate, the rear mudguard body is integrated with the steering lamp, rear license plate lamp, rear reflector and rear license plate support, the utility model novel structure, the layout is reasonable, through the integration of rear reflector, rear license plate lamp, steering lamp in rear mudguard, reduce the vehicle body mounting point, simplify the vehicle body structure, promote the appearance degree of beauty, while each component between adopts the threaded connection, can conveniently dismouting and repair, has improved the assembly efficiency, also reduced the manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the field of motorcycle assembly technology, specifically relating to an integrated assembly structure for a plastic rear mudguard. Background Technology

[0002] For motorcycles, a type of motorized two-wheeled vehicle, mudguards are installed on the wheels to protect the wheels and frame, and to prevent mud and debris from being kicked up by the wheels and contaminating the rider and the vehicle. The rear mudguard is a crucial component of a motorcycle. Installed at the rear of the frame, above the rear wheel, its primary function is to shield the vehicle from mud and water splashed up by the rear wheel, preventing it from splashing onto internal components or the rider. However, for most motorcycle models, the rear mudguard is directly mounted to the frame support after the taillights and turn signals are integrated. This traditional assembly method has the following drawbacks: the split structure leads to a cumbersome installation process (multiple frame supports need to be welded to ensure proper assembly); stress concentration at the welded areas can easily lead to breakage, requiring additional fasteners; replacement of taillights, turn signals, rear license plate lights, and rear reflectors is difficult; and the cumbersome assembly process increases labor costs during production and maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated assembly structure for plastic rear mudguards to solve the problems mentioned in the background art.

[0004] The objective of this utility model can be achieved using the following technical solutions: An integrated assembly structure for a plastic rear mudguard includes a frame and a rear fork. The rear fork is a U-shaped frame with a fixing plate on one side of its end opening. The fixing plate has evenly distributed threaded holes A, and an aluminum alloy connecting plate is connected through the threaded holes A. The rear mudguard body is mounted on the aluminum alloy connecting plate. The rear mudguard body integrates a turn signal, a rear license plate light, a rear reflector, and a rear license plate bracket.

[0005] The aluminum alloy connecting plate has an L-shaped structure, with evenly distributed through holes A on one side and evenly distributed threaded holes B on the other side, and a rear mudguard body connected to it; the through holes A and the threaded holes A correspond to each other, and the aluminum alloy connecting plate is installed on the rear fork of the frame by bolts A.

[0006] The rear mudguard body is an arc-shaped plate structure. Symmetrically arranged through holes B and C are provided on the upper part of its protruding arc-shaped panel, and evenly distributed through holes D are provided in the middle of the lower arc-shaped panel.

[0007] The turn signals are symmetrically inserted through the through holes B and secured with nuts. The back of the rear license plate light has evenly distributed mounting holes corresponding to the through holes D, and is mounted on them with self-tapping screws. The rear reflector is fixed to the rear end face of the rear license plate light with adhesive.

[0008] The rear license plate bracket is provided with evenly distributed through holes E; the positions of the through holes E, through holes D, and threaded holes B correspond to each other, and are fastened by bolts B passing through them.

[0009] The rear license plate bracket is integrally stamped from a 3mm thick cold-rolled steel plate.

[0010] The aluminum alloy connecting plate is made of 6061 aluminum alloy by CNC machining, and the surface of the connecting plate is anodized, with a thickness of 5-8mm.

[0011] The rear fork of the frame is made of high-strength Q235 steel tubing with a thickness of 2mm.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a novel structure and a reasonable layout. By integrating the rear reflector, rear license plate light, and turn signal into the rear mudguard, it reduces the number of mounting points on the vehicle body, simplifies the vehicle body structure, and enhances the aesthetic appeal. At the same time, the use of threaded connections between the components facilitates disassembly and maintenance, improving assembly efficiency while reducing manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Schematic diagram of the rear fork structure of the mid-frame.

[0015] Figure 3 for Figure 1 Schematic diagram of the aluminum alloy connecting plate structure.

[0016] Figure 4 for Figure 1 Schematic diagram of the middle and rear mudguard body structure.

[0017] Figure 5 for Figure 1 Schematic diagram of the rear license plate bracket structure.

[0018] Figure 6 for Figure 1 Exploded view of the middle and rear mudguard assembly.

[0019] In the diagram: 1. Rear fork of the frame; 2. Threaded hole A; 3. Through hole A; 4. Aluminum alloy connecting plate; 5. Threaded hole B; 6. Through hole B; 7. Through hole C; 8. Through hole D; 9. Rear fender body; 10. Rear license plate bracket; 11. Through hole E; 12. Rear reflector; 13. Rear license plate light; 14. Rear license plate light mounting hole; 15. Turn signal; 16. Self-tapping screw; 17. Nut; 18. Bolt A; 19. Bolt B; 20. Fixing plate. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-6 As shown, an integrated assembly structure for a plastic rear mudguard includes a rear fork 1 of a bicycle frame. The rear fork 1 is a U-shaped frame with a fixing plate 20 on one side of its end opening. The fixing plate 20 has evenly distributed threaded holes A2, and an aluminum alloy connecting plate 4 is connected to it through the threaded holes A2. A rear mudguard body 9 is mounted on the aluminum alloy connecting plate 4. The rear mudguard body 9 integrates a turn signal 15, a rear license plate light 13, a rear reflector 12, and a rear license plate bracket 10. The aluminum alloy connecting plate 4 has an L-shaped structure, with evenly distributed through holes A3 on one end and evenly distributed threaded holes B5 on the other end, and a rear mudguard body 9 connected thereto. The through holes A3 and threaded holes A2 correspond to each other, and the aluminum alloy connecting plate 4 is mounted on the rear fork 1 of the bicycle frame using bolts A18.

[0022] The turn signals 15 are symmetrically inserted through the through holes B6 and secured with nuts 17. The rear license plate light 13 has evenly distributed mounting holes 14 on its back, corresponding to the through holes D8, and is mounted on them with self-tapping screws 16. The rear reflector 12 is fixed to the rear end face of the rear license plate light 13 with adhesive. The rear fender body 9 is an arc-shaped plate structure. Symmetrically arranged through holes B6 and C7 are provided on the upper part of its protruding arc-shaped panel, and evenly distributed through holes D8 are provided in the middle of the arc-shaped panel below it. The above components are assembled onto the rear fork 1 of the frame by aluminum alloy connecting plate 4, which can reduce assembly time by more than 60% and greatly improve assembly efficiency. At the same time, the integrated design of each component eliminates scattered parts at the rear of the motorcycle, improving the appearance.

[0023] The rear license plate bracket 10 is provided with evenly distributed through holes E11; the positions of the through holes E11, through holes D8, and threaded holes B5 correspond to each other, and are fastened by bolts B19 passing through them; the rear license plate bracket 10 is integrally stamped from a 3mm thick cold-rolled steel plate; the aluminum alloy connecting plate 4 is made of 6061 aluminum alloy by CNC machining, and the surface of the connecting plate is anodized, with a thickness of 5-8mm; the rear fork 1 of the frame is integrally formed from high-strength Q235 steel pipe, with a thickness of 2mm. The rear fender body 9 is integrally injection molded from nylon and glass fiber plastic; the rear fork 1 of the frame is made of Q235 steel, which has high strength, good weldability, and good plasticity and toughness; the aluminum alloy connecting plate 4 is made of 6061 aluminum, which is a heat-treatable and strengthenable alloy with good formability, weldability, and machinability; the rear fender body 9 is a combination of plastic body and aluminum alloy connecting plate, which reduces the weight by 30% compared to the traditional metal bracket + dispersed parts structure, thus achieving a lightweight design.

[0024] In use, this utility model integrates the rear reflector 12, rear license plate light 13, and turn signal 15 onto the rear mudguard body 9 and uses a threaded connection. This connection method ensures the assembly of the rear mudguard and facilitates disassembly and replacement, thereby improving product production efficiency. At the same time, the use of lightweight materials not only ensures stability but also reduces manufacturing costs.

[0025] The above are merely preferred embodiments 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 scope of the technology 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.

Claims

1. A plastic rear fender integrated assembly structure, including a frame and rear fork (1); characterized in that: The rear fork (1) of the frame is a U-shaped frame with a fixing plate (20) on one side of the opening at its end. The fixing plate (20) has evenly distributed threaded holes A (2) and is connected to an aluminum alloy connecting plate (4) through the threaded holes A (2). The aluminum alloy connecting plate (4) has a rear mudguard body (9). The rear mudguard body (9) integrates a turn signal (15), a rear license plate light (13), a rear reflector (12), and a rear license plate bracket (10).

2. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The aluminum alloy connecting plate (4) has an L-shaped structure. One end of the plate has evenly distributed through holes A (3), and the other end has evenly distributed threaded holes B (5). A rear mudguard body (9) is connected to the plate. The through holes A (3) and the threaded holes A (2) correspond to each other. The aluminum alloy connecting plate (4) is installed on the rear fork of the frame (1) by bolts A (18).

3. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The rear mudguard body (9) is an arc-shaped plate structure. Symmetrically arranged through holes B (6) and through holes C (7) are provided on the upper part of its protruding arc-shaped panel, and evenly distributed through holes D (8) are provided in the middle of the arc-shaped panel below it.

4. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The turn signal (15) is symmetrically inserted through the through hole B (6) and fastened by the provided nut (17); the rear license plate light (13) has evenly distributed rear license plate light mounting holes (14) on its back side, which correspond to the through hole D (8) and are installed on it by the provided self-tapping screw (16); the rear reflector (12) is fixed to the rear end face of the rear license plate light (13) by adhesive.

5. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The rear license plate bracket (10) is provided with evenly distributed through holes E (11); the positions of the through holes E (11), through holes D (8), and threaded holes B (5) correspond to each other, and are fastened by bolts B (19) passing through them.

6. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The rear license plate bracket (10) is integrally stamped from a 3mm thick cold-rolled steel plate.

7. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The aluminum alloy connecting plate (4) is made of 6061 aluminum alloy by CNC machining. The surface of the connecting plate is anodized and the thickness is 5-8mm.

8. The integrated assembly structure for the plastic rear mudguard according to claim 1, characterized in that: The rear fork of the frame (1) is formed by high-strength Q235 steel pipe with a thickness of 2mm.

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