Lightweight safe wind shielding device of motorcycle

Abstract

A light-weight safety wind shielding device of a motorcycle comprises a wind shielding plate, a front goods shelf, a connecting plate and a drainage strip. The upper, middle and lower pairs of mounting holes of the connecting plate are positioned on two sides of the middle arc-shaped structure; two ends of the connecting plate are centered and connected with the inner edge of the wind shield; a front-side groove of the front goods shelf is connected with a middle arc-shaped structure of the connecting plate, the left and right sides are connected with the inner sides of the two side wind shields, and the upper-side front goods shelf is located between the upper mounting hole and the middle mounting hole of the wind shield; the lower-side front goods shelf is positioned between the middle mounting hole and the lower mounting hole of the wind shield; the drainage strips are vertically arranged on the outer side of the wind shield and are perpendicular to the connecting plate installation plate. A longitudinal and transverse rib plate structure is formed by the wind shield, the connecting plate, the front goods shelf and the drainage plate, the front bumper and the lower wind shield are mutually fused, a bar is replaced by a plate, steel is replaced by plastic, and light weight and protection performance are both considered; the utility model not only can be used for light motorcycles, but also can be used for electric bicycles and light electric tricycles.

Description

Technical Field

[0001] This utility model relates to protective devices for cycling vehicles, particularly lightweight safety windshield devices for motorcycles. Background Technology

[0002] Delivery drivers must deliver on time, rain or shine. The cold wind and dampness can irritate riders' legs and knees (especially in winter), easily causing joint problems. To reduce this irritation, motorcycles commonly have lower windshields installed on the front bumper. When the wheels run over puddles, the lower windshield can also block mudslides. In the event of a rollover, the steel lower windshield can support the motorcycle, preventing damage and protecting the rider's legs. In a head-on collision, the steel lower windshield can also act as a reinforcement plate for the front bumper, providing puncture resistance and improving its protective capabilities.

[0003] As the government repeatedly updates its weight limits for mopeds, some mopeds, and even moped tricycles, have abandoned bumpers and steel lower windshields to avoid exceeding the limits. While this meets the weight limit, it sacrifices safety, especially for delivery drivers who are a high-risk group for collisions and rollovers. Many delivery drivers work part-time, and delivery companies do not provide them with dedicated riding gear. Countless delivery drivers ride electric bicycles, mopeds, and moped tricycles without bumpers and lower windshields. To reduce weight, some manufacturers choose to use engineering plastic sheets to fuse the front bumper and lower windshield into a front bumper windshield. However, engineering plastic sheets have poor impact resistance, crack resistance, and even worse puncture resistance, making them impractical. To ensure timely delivery regardless of weather conditions, most delivery drivers use homemade windshields with poor safety.

[0004] Balancing the lightweight design and protective features of the front bumper and lower windshield is crucial for the safety of cyclists, especially delivery drivers on their delivery routes. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a lightweight safety windshield device for motorcycles that combines lightweight design and protection.

[0006] The technical solution of this utility model is as follows: A lightweight safety windshield device for motorcycles includes: a windshield, a front rack, a connecting plate, and a guide strip; three pairs of mounting holes (upper, middle, and lower) on the connecting plate are located on both sides of the middle arc-shaped structure, and the two ends of the connecting plate are centered and connected to the inner edge of the windshield; the front groove of the front rack is fixedly connected to the middle arc-shaped structure of the connecting plate, and the left and right sides are respectively fixedly connected to the inner sides of the two windshields; the upper front rack is located below the mounting hole on the windshield and above the middle mounting hole; the lower front rack is located below the middle mounting hole on the windshield and above the lower mounting hole; the guide strip is arranged vertically side by side on the outer side of the windshield and is perpendicular to the connecting plate and the mounting plate.

[0007] The wind deflector, front shelf, and flow guide strip are arranged in two mirror images symmetrically with the connecting plate centered on them.

[0008] The wind deflector is installed obliquely on both sides of the connecting plate. It is made of hot-rolled carbon fiber and glass fiber blended fabric reinforced polypropylene board, and the blended glass fiber is modified high-ductility glass fiber.

[0009] The front shelf has a groove in the center of the front side to match the connecting plate, and slopes on both sides to match the wind deflector. The cross-section is L-shaped and the material is carbon fiber cloth reinforced polypropylene foam resin board.

[0010] The connecting plate has two flat mounting plates on both sides with three pairs of mounting holes (upper, middle, and lower). The middle part has an arc-shaped structure that matches the vehicle frame. The material is a hot-rolled carbon fiber and glass fiber blended fabric reinforced polypropylene plate, and the blended glass fiber is modified high-ductility glass fiber.

[0011] The drainage strip is a narrow strip with an inner slope that matches the outer side of the wind deflector, an outer arc, and flat surfaces on the left and right sides. It is made of carbon fiber cloth reinforced polypropylene foam resin board.

[0012] This invention addresses the shortcomings of engineering plastic sheets in terms of impact and crack resistance, particularly poor puncture resistance, which significantly reduces the protective function of motorcycle lower windshields. It utilizes hot-rolled carbon fiber and glass fiber blended polypropylene sheets with excellent impact, crack, and puncture resistance to construct the windshield and connecting plates. Carbon fiber cloth reinforced polypropylene foam resin sheets with good impact and crack resistance are used to construct the front rack and air intake strips. The vertically arranged air intake strips on the outer side of the windshield act as a corrugated plate for airflow reduction and also serve as longitudinal reinforcing ribs. The front rack can hold items and also acts as longitudinal reinforcing ribs. The sturdy windshield and connecting plates, together with the lightweight front rack and air intake plates, form a longitudinal and transverse rib structure, integrating the front bumper and lower windshield. By replacing the bumper with sheets and steel with plastic, the weight reduction effect is significant, achieving both lightweight design and enhanced protection.

[0013] Compared with the existing technology, the present invention has the following advantages:

[0014] This utility model has a good lightweight effect; the drainage strip of this utility model acts as a reinforcing longitudinal rib, and the front shelf acts as a reinforcing transverse rib. Together with the wind deflector and connecting plate, they form a longitudinal and transverse rib plate structure, which integrates the front bumper and the lower wind deflector. By replacing the bumper with a plate and the steel with plastic, the weight of this utility model is effectively reduced.

[0015] This invention offers excellent safety protection. It utilizes hot-rolled carbon fiber and glass fiber blended fabric reinforced polypropylene sheets to create the windbreak and connecting plates. The blended glass fiber is a modified high-ductility glass fiber, effectively increasing the sheet's toughness and improving its impact resistance, crack resistance, and puncture resistance. The front rack and guide plate form a longitudinal and transverse reinforcing rib structure, effectively improving overall mechanical strength and providing resistance to punctures, further enhancing puncture resistance. This invention balances lightweight design with protective features, effectively improving rider safety.

[0016] This invention has a good drag reduction effect. The wind deflector is installed obliquely on both sides of the connecting plate, which helps to reduce wind resistance. The vertically arranged guide strips on the outer side of the wind deflector can play the role of guide strips and reduce drag. The guide strips are narrow and long, which can reduce lateral wind resistance.

[0017] This utility model is easy to assemble and disassemble and has good compatibility. The upper front rack is located below the mounting hole on the wind deflector and above the middle mounting hole, while the lower front rack is located below the middle mounting hole on the wind deflector and above the lower mounting hole. This design avoids obstructing the three pairs of mounting holes on the upper, middle, and lower connecting plates, thus not affecting assembly and disassembly. The middle of the mounting plates on both sides of the connecting plate has an arc-shaped structure to match the frame, which facilitates the movement of frame components and improves installation compatibility.

[0018] This invention can increase the load capacity, and the two front racks of this invention allow riders to carry more items.

[0019] This utility model has good versatility; it can be used for mopeds, electric bicycles, and moped tricycles. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of this utility model;

[0021] Figure 2 Top view of this utility model. Detailed Implementation

[0022] like Figure 1 , Figure 2As shown, this utility model is a lightweight safety windshield device for motorcycles, including: a windshield 1, a front rack 2, a connecting plate 3, and a guide strip 4; the connecting plate 3 has three pairs of mounting holes on the upper, middle, and lower sides located on both sides of the middle arc-shaped structure, and the two ends of the connecting plate 3 are centered and connected to the inner edge of the windshield 1; the front groove of the front rack 2 is fixedly connected to the middle arc-shaped structure of the connecting plate 3, and the left and right sides are respectively fixedly connected to the inner sides of the two windshields 1, the upper front rack 2 is located below the upper mounting hole of the windshield 1 and above the middle mounting hole; the lower front rack 2 is located below the middle mounting hole of the windshield 1 and above the lower mounting hole; the guide strip 4 is arranged vertically side by side on the outer side of the windshield 1, perpendicular to the mounting plate of the connecting plate 3.

[0023] The wind deflector 1, front shelf 2, and flow guide 4 are arranged in two mirror images symmetrically with the connecting plate 3 in the center.

[0024] The wind deflector 1 is obliquely installed on both sides of the connecting plate 3. It is made of hot-rolled carbon fiber and glass fiber blended fabric reinforced polypropylene board, and the blended glass fiber is modified high-ductility glass fiber.

[0025] The front shelf 2 has a groove in the center of its front side that matches the connecting plate 3, and slopes on both sides that match the wind deflector 1. The cross-section is L-shaped and the material is carbon fiber cloth reinforced polypropylene foam resin board.

[0026] The connecting plate 3 has two flat mounting plates on both sides, with three pairs of mounting holes at the top, middle and bottom. The middle part has an arc-shaped structure to match the frame. The material is a hot-rolled carbon fiber and glass fiber blended fabric reinforced polypropylene plate, and the blended glass fiber is modified high-ductility glass fiber.

[0027] The drainage strip 4 is a narrow strip with an inner slope that matches the outer side of the wind deflector 1, an outer arc, and flat surfaces on the left and right sides. It is made of carbon fiber cloth reinforced polypropylene foam resin board.

Claims

1. A lightweight safety windshield device for motorcycles, comprising: The device comprises a wind deflector, a front shelf, a connecting plate, and flow guide strips. Three pairs of mounting holes (upper, middle, and lower) are located on both sides of the central arc-shaped structure on the connecting plate, with both ends of the connecting plate centered and connected to the inner edge of the wind deflector. The front shelf has a groove on its front side that connects to the central arc-shaped structure of the connecting plate, and its left and right sides are respectively connected to the inner sides of the two wind deflectors. The upper front shelf is located below the mounting hole on the wind deflector and above the middle mounting hole; the lower front shelf is located below the middle mounting hole on the wind deflector and above the lower mounting hole; and flow guide strips are arranged vertically side-by-side on the outer side of the wind deflector.

2. The lightweight safety windshield device for motorcycles according to claim 1, characterized in that: The front shelf has a groove in the center of the front side to match the connecting plate, and slopes on both sides to match the wind deflector, with an L-shaped cross-section.

3. A lightweight safety windshield device for motorcycles according to claim 1 or 2, characterized in that: The connecting plate has two flat mounting plates on both sides, with three pairs of mounting holes at the top, middle and bottom, and an arc-shaped structure in the middle to match the frame.

4. A lightweight safety windshield device for motorcycles according to claim 3, characterized in that: The drainage strip is a narrow strip with an inner slope that matches the outer side of the wind deflector, an outer arc, and flat surfaces on the left and right sides.

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