Fixing structure of rear mudguard of motorcycle
The mudguard structure, featuring an adjustable hinge and built-in heating element, solves the problems of traditional motorcycle rear mudguards being unable to be adjusted and frozen mud and sand being difficult to clean, thus improving mud-blocking performance and riding safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional motorcycle rear mudguards cannot adjust their angle according to tire size and road conditions, resulting in reduced mud-blocking effectiveness. Furthermore, in cold regions, mud and sand are prone to freezing and are difficult to clean, posing a safety hazard.
An adjustable rear fender structure was designed, which uses a hinge and locking device to adjust the front and rear position and tilt angle of the fender. A heating element is built into the fender to melt frozen mud and sand, and a hydrophobic coating is applied to the outside to reduce mud and sand adhesion.
The mudguards are adjustable, improving mud-blocking performance, avoiding mud splashes and the problem of cleaning frozen mud and sand, and enhancing riding safety and comfort.
Smart Images
Figure CN224104207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motorcycle technical field, especially relate to a fixing structure of motorcycle back mudguard. BACKGROUND
[0002] The motorcycle mudguard is an important part of the vehicle body, mainly bearing multiple protection functions. In the driving process, the high-speed rotation of the wheels will roll up the road mud, water or gravel, and the mudguard effectively prevents these sundries from splashing to the rider's legs, rear seat passengers or rear vehicles through physical blocking, improving the riding comfort, and avoiding the safety hazards caused by the mud blocking the line of sight or foreign matter hitting.
[0003] The conventional motorcycle rear mudguard is mostly installed at a fixed angle, and its position and inclination cannot be adaptively adjusted according to the tire size, driving conditions or load changes. Especially when driving in complex terrain or carrying objects, the fixed-angle mudguard is prone to insufficient clearance with the tire, resulting in reduced mud blocking effect and prominent mud splashing problems. In addition, the existing mudguards are mostly made of metal or plastic materials, with high surface roughness, and mud is easy to adhere and accumulate. When driving in cold areas, the mixed ice water mud on the surface of the mudguard freezes and hardens, forming stubborn clumps, which not only increases the weight of the vehicle body and affects the balance, but also causes the mudguard to deform or even break due to vibration, posing a safety hazard. SUMMARY
[0004] The utility model aims at providing a fixing structure of motorcycle back mudguard, solving the problem of free adjustment of the angle of the mudguard according to the size of the tire to achieve the best mud blocking effect, and conveniently cleaning the frozen mud.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:
[0006] A fixing structure of motorcycle back mudguard, comprising a connecting plate, a connecting plate mounting hole is formed through the connecting plate, the connecting plate mounting hole is a waist-shaped hole, the outer end of the connecting plate is hinged to the top end of the mudguard through a hinge, the outer end of the hinge is fixed to the rotating angle of the mudguard through a locking device, the mudguard is a hollow structure, a wire hole is formed in the top end, a plurality of heating plate mounting seats are fixed around the inside of the mudguard, a heating plate is mounted on the inside of the mudguard through the heating plate mounting seat, a heating sheet is bonded to the inside of the heating plate, and the wire of the heating sheet is drawn out from the wire hole.
[0007] Preferably, the mudguard is made of stainless steel.
[0008] Preferably, the outer side of the mudguard is sprayed with a hydrophobic coating.
[0009] Preferably, the hydrophobic coating is a fluorosilane hydrophobic coating.
[0010] Preferably, the hinge comprises a rotating cylinder, a fixed cylinder, a central shaft, the rotating cylinder is integrally formed with the top of the mudguard, the fixed cylinder is integrally formed with the end of the connecting plate, the rotating cylinder is connected with the fixed cylinder through the central shaft, the central shaft is fixed with the rotating cylinder and rotates along the fixed cylinder, the wire hole is opened at the top of the rotating cylinder and communicates with the inside of the mudguard.
[0011] Preferably, the locking device comprises a spring baffle, a locking cap, a positioning tooth, a guide strip and a spring, the spring baffle is fixed with the end of the central shaft, the locking cap is located on the central shaft on the side of the spring baffle, the locking cap is provided with the positioning tooth on the circumference of the opposite surface of the fixed cylinder, the end of the central shaft close to the locking cap is fixed with the guide strip in the radial direction, the locking cap is connected with the guide strip through sliding, the spring is sleeved on the central shaft between the spring baffle and the locking cap, the opposite surface of the fixed cylinder is provided with the positioning groove on the circumference, and the positioning tooth is buckled with the positioning groove.
[0012] Preferably, the locking cap is fixed with the hand ring on the outer circumference.
[0013] Preferably, the rear tail lamp is installed on the outer side of the mudguard.
[0014] Preferably, the license plate mounting seat is integrally formed on the outer side of the mudguard below.
[0015] The utility model has the following beneficial effects:
[0016] 1. Through the linkage design of the mounting hole and the hinge, the front and rear positions and the inclination angle of the mudguard are realized, different size tires and complex road conditions are adapted, the mud efficiency is accurately improved, and the problem of mud splashing caused by insufficient gap of the traditional fixed mudguard is avoided.
[0017] 2. The built-in heating sheet directly melts the frozen mud and sand through heat conduction of the heating plate, avoids the frozen mud and sand from being excessively adhered to the mudguard due to low outdoor temperature, is not convenient for cleaning, causes driving burden, and makes the frozen mud and sand of the mudguard 4 more easily cleaned and fallen off. DRAWINGS
[0018] Figure 1 is the appearance structure schematic view of the utility model;
[0019] Figure 2 is the heating sheet, heating plate and mudguard assembly schematic view of the utility model;
[0020] Figure 3 is the hinge structure schematic view of the utility model;
[0021] Figure 4 is the utility model Figure 3 A is the enlarged view of the utility model;
[0022] Icons: 1. Connecting plate; 2. Connecting plate mounting hole; 3. Hinge; 31. Rotating cylinder; 32. Fixing cylinder; 321. Positioning groove; 33. Central shaft; 4. Mudguard; 41. Cable guide hole; 42. Heating plate mounting base; 43. Heating plate; 44. Heating element; 45. Taillight; 46. License plate mounting base; 5. Locking device; 51. Spring baffle; 52. Locking cap; 53. Positioning tooth; 54. Guide strip; 55. Spring; 56. Hand lever ring. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figures 1-4 As shown, in this embodiment, a fixing structure for a motorcycle rear fender includes a connecting plate 1. The connecting plate 1 has a through-hole 2, which is an oblong hole allowing for adjustment of the connecting plate 1's position. The connecting plate 1 is bolted to the bottom of the motorcycle's rear seat via the connecting plate mounting hole 2. The outer end of the connecting plate 1 is hinged to the top of a fender 4 via a hinge 3. The outer end of the hinge 3 is fixed to the rotation angle of the fender 4 via a locking device 5. The angle of the fender 4 can be manually adjusted according to the size of the motorcycle's rear tire to achieve optimal mud-blocking effect. The fender 4 has a hollow structure with a wire hole 41 at its top. Multiple heating plate mounting seats 42 are fixed around the inside of the mudguard 4. Heating plates 43 are installed on the inner side of the mudguard 4 through the heating plate mounting seats 42. Heating elements 44 are glued to the inner side of the heating plates 43. The wiring of the heating elements 44 passes through the wire hole 41 and is connected to the wire of the motorcycle's central control button. By heating the heating elements 44, the temperature of the heating elements 44 is 80-120℃, which conducts heat to the mudguard 4 and melts the frozen mud and sand on the outside of the mudguard 4. This prevents the frozen mud and sand from sticking too much to the mudguard 4 due to the low outdoor temperature, making it difficult to clean and causing a burden on the rider. It also makes it easier to clean and remove the frozen mud and sand from the mudguard 4.
[0026] The mudguard 4 is made of stainless steel. The stainless steel mudguard 4 has a thickness of 1.2-1.5 mm, is mirror polished on the surface, has low surface roughness, long service life, good heat conduction effect, and is not easy to deform, and can significantly reduce the adhesion of mud and sand.
[0027] The outer side of the mudguard 4 is sprayed with a hydrophobic coating. The water in the slurry cannot infiltrate the surface, forming a "water bead rolling" effect, which entrains mud and sand particles and reduces the amount of adhesion, changes the physical and chemical properties of the surface of the mudguard 4, and achieves the effects of reducing adhesion, promoting shedding, and protecting the substrate.
[0028] The hydrophobic coating is a fluorosilane hydrophobic coating. Fluorosilane has good heat conduction effect and lower adhesion, and is more easily to make frozen mud and sand fall off when heated to melt ice.
[0029] The hinge 3 includes a rotating cylinder 31, a fixed cylinder 32, and a center shaft 33. The rotating cylinder 31 is integrally formed with the top of the mudguard 4. The fixed cylinder 32 is integrally formed with the end of the connecting plate 1. The rotating cylinder 31 is connected with the fixed cylinder 32 through the center shaft 33. The center shaft 33 is fixed with the rotating cylinder 31 and rotates along the fixed cylinder 32. The wire hole 41 is opened at the top of the rotating cylinder 31 and communicates with the inside of the mudguard 4.
[0030] The locking device 5 includes a spring baffle 51, a locking cap 52, a positioning tooth 53, a guide strip 54, and a spring 55. The spring baffle 51 is fixed with the end of the center shaft 33. The locking cap 52 is located on the center shaft 33 on one side of the spring baffle 51. The locking cap 52 is opposite to the fixed cylinder 32 and has the positioning tooth 53 around the circumference. The end of the center shaft 33 close to the locking cap 52 is fixed with the guide strip 54 radially. The locking cap 52 is connected with the guide strip 54 and rotates synchronously with the center shaft 33. The spring 55 is sleeved on the center shaft 33 between the spring baffle 51 and the locking cap 52 and applies an axial spring force to the locking cap 52. The fixed cylinder 32 and the locking cap 52 are opposite and have the positioning groove 321 around the circumference. The positioning tooth 53 is buckled with the positioning groove 321. The positioning tooth 53 and the positioning groove 321 are designed in trapezoidal section, and the tooth spacing is 15°, providing 24 angle locking. The positioning tooth 53 of the locking cap 52 is separated from the positioning groove 321 by manual mode, the angle of the mudguard 4 is adjusted freely, and the locking cap 52 and the fixed cylinder 32 are angle-fixed by spring force, and the angle of the center shaft 33 and the rotating cylinder 31 is fixed, so that the mudguard 4 cannot rotate, the angle is locked, and the stability is increased.
[0031] The locking cap 52 is fixed with the hand dial ring 56 outside the circumference. The diameter of the hand dial ring 56 is greater than that of the locking cap 52, which is convenient for manually pushing the locking cap 52 radially.
[0032] The rear tail lamp 45 is mounted outside the mudguard 4 to facilitate night warning effect.
[0033] The license plate mounting seat 46 is integrally formed below the outside of the mudguard 4 to facilitate installation of the motorcycle license plate.
[0034] The utility model works as follows: the connecting plate 1 is connected to the frame bolt through the waist type hole 2, and is slid along the long axis of the hole to change the longitudinal distance between the mudguard 4 and the tire, thereby avoiding insufficient clearance caused by tire size difference. The hand knob 56 is manually rotated to overcome the spring force of the spring 55, so that the positioning teeth 53 of the locking cap 52 are disengaged from the positioning groove 321 of the fixed cylinder 32. At this time, the mudguard 4 is rotated to drive the rotating cylinder 31 to rotate around the center shaft 33 until the mudguard reaches the target inclination angle. The hand knob 56 is loosened, the spring 55 pushes the locking cap 52 back to its original position, the positioning teeth 53 are re-engaged with the positioning groove 321, and the center shaft 33 is prevented from rotating through the self-locking effect of the trapezoidal tooth surface, thereby rigidly fixing the angle of the mudguard 4 and ensuring that it does not bounce or loosen in bumpy road conditions. The heating sheet 44 is started by the central control button, the resistance wire of which is heated to 80-120℃ after being powered on, and the heat is conducted to the surface of the stainless steel mudguard 4 through the heating plate 43, so that the frozen mud layer expands and the ice crystal structure is destroyed. The high thermal conductivity of the stainless steel substrate ensures uniform heat diffusion, and the surface of the fluorosilane hydrophobic coating can weaken the bonding force between ice and the plate, so that the melted mud naturally falls off due to gravity and vibration during riding.
[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A fixing structure for a rear fender of a motorcycle, comprising a connecting plate (1), wherein the connecting plate (1) has a connecting plate mounting hole (2) extending through it, the connecting plate mounting hole (2) being an oblong hole, characterized in that, The outer end of the connecting plate (1) is hinged to the top of the mudguard (4) via a hinge (3), and the outer end of the hinge (3) is fixed to the rotation angle of the mudguard (4) via a locking device (5). The mudguard (4) has a hollow structure with a wire hole (41) at the top. Multiple heating plate mounting seats (42) are fixed around the inside of the mudguard (4). A heating plate (43) is installed on the inner side of the mudguard (4) through the heating plate mounting seat (42). A heating element (44) is glued to the inner side of the heating plate (43). The wiring of the heating element (44) passes through the wire hole (41).
2. The fixing structure for a motorcycle rear fender according to claim 1, characterized in that, The mudguard (4) is made of stainless steel.
3. The fixing structure for a motorcycle rear fender according to claim 2, characterized in that, The mudguard (4) is coated with a hydrophobic coating on its outer side.
4. The fixing structure for a motorcycle rear fender according to claim 3, characterized in that, The hydrophobic coating is a fluorosilane hydrophobic coating.
5. The fixing structure for a motorcycle rear fender according to claim 1, characterized in that, The hinge (3) includes a rotating cylinder (31), a fixed cylinder (32), and a central shaft (33). The rotating cylinder (31) is integrally formed with the top of the mudguard (4), and the fixed cylinder (32) is integrally formed with the end of the connecting plate (1). The rotating cylinder (31) and the fixed cylinder (32) are connected by the central shaft (33). The central shaft (33) is fixed to the rotating cylinder (31) and rotates inside the fixed cylinder (32). The wire hole (41) is opened at the top of the rotating cylinder (31) and communicates with the inside of the mudguard (4).
6. The fixing structure for a motorcycle rear fender according to claim 5, characterized in that, The locking device (5) includes a spring baffle (51), a locking cap (52), positioning teeth (53), a guide bar (54), and a spring (55). The spring baffle (51) is fixed to the end of the central shaft (33). The locking cap (52) is located on the central shaft (33) on one side of the spring baffle (51). Positioning teeth (53) are opened on the circumference of the locking cap (52) opposite to the fixed cylinder (32). A guide bar (54) is radially fixed to one end of the central shaft (33) near the locking cap (52). The locking cap (52) is slidably connected along the guide bar (54). A spring (55) is sleeved on the central shaft (33) between the spring baffle (51) and the locking cap (52). The fixed cylinder (32) and the locking cap (52) have a positioning groove (321) on their opposite circumference, and the positioning tooth (53) engages with the positioning groove (321).
7. The fixing structure for a motorcycle rear fender according to claim 6, characterized in that, A hand lever ring (56) is fixed on the outer circumference of the locking cap (52).
8. The fixing structure for a motorcycle rear fender according to claim 1, characterized in that, A taillight (45) is installed on the outside of the mudguard (4).
9. The fixing structure for a motorcycle rear fender according to claim 1, characterized in that, The mudguard (4) has a license plate mounting seat (46) integrally formed on the lower outer side.