Engine protection plate

Abstract

The utility model provides an engine protection plate which comprises a bottom plate, a first side plate and a second side plate. Firstly, the streamline design is adopted for the bottom plate, running resistance is reduced, meanwhile, the engine protection plate is attached to the outline of an engine, comprehensive and efficient protection is provided for the bottom of the motorcycle engine and the exhaust front portion, and damage of gravel is avoided; secondly, an air inlet is formed in the middle of the second arc-shaped part, fresh cold air can enter the air inlet in the driving process, the streamline design is adopted for the bottom plate, the entered cold air passes through the narrow space between the bottom plate and the engine at a high speed, then strong airflow is formed, and the air flow is more uniform. The airflow flows close to the surface of the engine, so that heat generated by working of the engine is effectively taken away, and the temperature of the engine is remarkably reduced. Therefore, the engine protection plate provides comprehensive and efficient protection and heat dissipation performance for the motorcycle engine, and stability and reliability of the engine under severe road conditions and long-time operation are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle accessories, in particular to an engine guard plate. Background Art

[0002] With the continuous development of the motorcycle market and technological advancements, people are placing higher demands on motorcycle safety, comfort, and design. As an important means of transportation for daily commutes, the performance of motorcycles directly impacts the safety and comfort of riders. The motorcycle engine is a core component, determining not only the motorcycle's power performance but also its overall safety.

[0003] At present, the engine assembly of most civilian motorcycles is located in the front and lower side of the seat. Although this layout helps to optimize the overall center of gravity distribution of the motorcycle, it also exposes some problems in actual use. First, when the motorcycle is driving on a wet and muddy road, the rotation of the front wheel will throw sand and gravel all around. These sand and gravel can easily splash onto the engine assembly, which may damage the engine and shorten the engine's service life. Secondly, the engine will generate a lot of heat when running for a long time. If the engine is not effectively protected, the high temperature may cause burns to the rider's legs, especially in the summer or when riding long distances. In addition, although the existing plastic material guard is low in cost, due to the limitations of the material itself, such as poor temperature resistance and durability, it is prone to aging, deformation and other problems after long-term use, which in turn affects the heat dissipation effect of the engine and even causes engine overheating failure. In view of this, it is necessary to provide an engine guard that can effectively protect the engine and improve the heat dissipation performance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides an engine guard plate, which solves the problems in the prior art of insufficient protection performance, poor heat dissipation effect and low safety of some engine guard plates.

[0005] An engine guard plate comprises a bottom plate, a first side plate and a second side plate, wherein the bottom plate is streamlined and comprises a straight portion, a first curved portion and a second curved portion connected end to end, an oil drain hole is provided at the junction of the first curved portion and the straight portion, a plurality of heat dissipation holes are provided on the first curved portion, a first mounting hole is provided on a side of the second curved portion close to the first curved portion, and an air inlet is provided in the middle of the second curved portion; the first side plate and the second side plate are respectively arranged on both sides of the bottom plate, a cross-flow air duct is provided on a side of the first side plate close to the second curved portion, a second mounting hole is provided on a side of the first side plate close to the straight portion, and two third mounting holes are provided on a side of the second side plate close to the straight portion.

[0006] Preferably, the air inlet is a square air inlet, and the square air inlet occupies 1 / 4 to 1 / 3 of the area of ​​the second arc-shaped portion.

[0007] Preferably, the cross-flow air duct includes a cross-flow air outlet recessed into the first side plate or the second side plate, an air induction plate arranged on the side of the cross-flow air outlet, two connecting plates connected to the air induction plate, and a wind shield plate connected to the ends of the two connecting plates.

[0008] Furthermore, the side edge of the cross-flow air duct close to one side of the bottom plate to the bottom plate is the air induction plate, and the air induction plate is recessed toward one side of the first side plate or the second side plate.

[0009] Preferably, the heat dissipation holes include a plurality of first strip heat dissipation hole groups and a plurality of second strip heat dissipation holes arranged at intervals, the first strip heat dissipation hole group includes two identical first strip heat dissipation holes arranged in a straight line, and the second strip heat dissipation holes are staggered between the two first strip heat dissipation holes.

[0010] Preferably, the engine guard plate is made of aluminum alloy plate.

[0011] Furthermore, the engine guard plate is integrally die-cast.

[0012] Preferably, the outer surface of the engine guard plate is provided with an anti-corrosion layer.

[0013] Preferably, the first mounting hole, the second mounting hole and the third mounting hole are all circular mounting holes, and a rubber pad with an I-shaped cross-section is provided on the circular mounting hole, and both ends of the rubber pad respectively abut against two opposite side surfaces of the circular mounting hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides an engine guard plate, comprising a bottom plate, a first side plate, and a second side plate. Firstly, the bottom plate adopts a streamlined design, which not only optimizes aerodynamic performance and reduces driving resistance, but also the bottom plate, the first curved portion, and the second curved portion are arranged to conform to the contour of the engine, providing comprehensive and efficient protection for the bottom of the motorcycle engine and the front of the exhaust, thereby preventing damage from sand and gravel. Secondly, an air inlet is provided in the middle of the second curved portion, which allows fresh cold air to enter during driving. The streamlined design of the bottom plate allows the incoming cold air to pass through the narrow space between the bottom plate and the engine at high speed, thereby forming a strong airflow. This airflow flows closely along the surface of the engine, effectively removing heat generated by the engine during operation, significantly reducing the engine temperature, and avoiding performance degradation and potential failures caused by overheating. Thirdly, the provision of a cross-flow duct allows air to be guided by the cross-flow duct and blown directly to the side of the engine during driving, effectively removing heat generated by the side of the engine during operation. At the same time, the first mounting hole, the second mounting hole, and the third mounting hole provide a convenient installation method, thereby enhancing the practicality and stability of the guard plate. Therefore, the engine guard provides comprehensive and efficient protection and heat dissipation performance for the motorcycle engine, ensuring the stability and reliability of the engine under harsh road conditions and long-term operation, thereby bringing a safer and more comfortable driving experience to the rider. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the top view of the engine guard plate of the present invention;

[0017] Figure 2 This is a bottom structural schematic diagram of the engine guard plate of the present invention;

[0018] Figure 3 This is a front structural diagram of the engine guard plate of the present invention;

[0019] Figure 4 This is a side structural schematic diagram of the engine guard plate described in the present invention.

[0020] in:

[0021] 10-bottom plate, 20-first side plate, 30-second side plate, 40-oil drain hole, 50-air inlet, 60-cross-flow air duct, 11-straight portion, 12-first curved portion, 13-second curved portion, 14-heat dissipation hole, 15-first mounting hole, 16-second mounting hole, 17-third mounting hole, 18-rubber pad, 61-cross-flow air outlet, 62-air inlet plate, 63-connecting plate, 64-wind shield, 141-first strip-shaped heat dissipation hole group, 142-second strip-shaped heat dissipation hole. DETAILED DESCRIPTION

[0022] The embodiments described below are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See Figures 1 to 4 The present embodiment provides an engine guard plate, which includes a bottom plate 10, a first side plate 20 and a second side plate 30. The bottom plate 10 is streamlined and includes a straight portion 11, a first curved portion 12 and a second curved portion 13 connected end to end. An oil drain hole 40 is provided at the junction of the first curved portion 12 and the straight portion 11. A plurality of heat dissipation holes 14 are provided on the first curved portion 12. A heat dissipation hole 14 is provided on the side of the second curved portion 13 close to the first curved portion 12. A first mounting hole 15, an air inlet 50 is provided in the middle of the second arc-shaped portion 13; the first side panel 20 and the second side panel 30 are respectively arranged on both sides of the bottom plate 10, and a cross-flow air duct 60 is provided on the side of the first side panel 20 and the second side panel 30 close to the second arc-shaped portion 13, a second mounting hole 16 is provided on the side of the first side panel 20 close to the straight portion 11, and two third mounting holes 17 are provided on the side of the second side panel 30 close to the straight portion 11.

[0024] See Figure 3 Preferably, the air inlet 50 is a square air inlet 50, occupying 1 / 4 to 1 / 3 of the area of ​​the second arc-shaped portion 13. The design of the square air inlet 50 allows the cool air entering the guard plate to more effectively remove heat generated by the engine, further reducing the engine's operating temperature. Furthermore, the air inlet 50 of the present application has a moderate area, ensuring sufficient air flow while avoiding the weakening of the overall structure of the engine guard plate caused by an overly large air inlet 50.

[0025] See Figure 3 、 Figure 4Preferably, the cross-flow air duct 60 includes a cross-flow air port 61 recessed into the first side panel 20 or the second side panel 30, an air inlet 62 disposed on the side of the cross-flow air port 61, two connecting plates 63 connected to the air inlet 62, and a wind shield 64 connected to the ends of the two connecting plates 63. The cross-flow air port 61 is recessed into the side panel, allowing airflow to more smoothly enter the gap between the first side panel 20 and the second side panel 30 and the side of the engine, reducing airflow obstruction, thereby enhancing the air supply capacity of the air duct, and improving the air supply capacity by 20% to 30%. At the same time, the coordinated arrangement of the air inlet 62, the connecting plate 63, and the wind shield 64 further guides the direction of the airflow, allowing the airflow to flow more stably and orderly in the gap between the first side panel 20 and the second side panel 30 and the side of the engine, thereby improving the overall airflow performance. Again, the cross-flow air outlet 61 is recessed into the side panel and cooperates with the setting of the air inlet plate 62, which helps to reduce the noise and vibration generated by the air flow in the gap, making the air flow quieter and smoother during operation, and correspondingly improving the user experience and comfort.

[0026] See Figure 1 、 Figure 2 , more specifically, the side edge of the cross-flow air duct 60 close to the bottom plate 10 to the bottom plate 10 is the air guide plate 62, and the air guide plate 62 is recessed toward the first side plate 20 or the second side plate 30. The design of the air guide plate 62 being recessed toward the side plate on the other side effectively increases the air inlet area of ​​the air duct, allowing more external air to be smoothly introduced into the gap, which not only improves the ventilation efficiency of the air duct, but also further enhances the heat dissipation effect on the side of the engine, ensuring the stable operation of the engine in a high-temperature environment. At the same time, it also helps to reduce the turbulence of the air flow in the air duct and the generation of noise. When external air is introduced into the air duct, the air guide plate 62 can guide the air flow to flow along a more orderly path, reducing the friction and collision between the air flow and the inner wall of the air duct, thereby reducing the generation of noise and vibration.

[0027] See Figure 2 Preferably, the heat dissipation holes 14 include a plurality of first strip-shaped heat dissipation hole groups 141 and a plurality of second strip-shaped heat dissipation holes 142 arranged at intervals. The first strip-shaped heat dissipation hole group 141 includes two identical first strip-shaped heat dissipation holes 14 arranged in a straight line, and the second strip-shaped heat dissipation holes 142 are staggered between the two first strip-shaped heat dissipation holes 14. This achieves a diversified layout of the heat dissipation holes 14, increases the heat dissipation area, and thus improves heat dissipation efficiency. The plurality of first strip-shaped heat dissipation hole groups 141 and the plurality of second strip-shaped heat dissipation holes 142 allow air flowing through the heat dissipation holes 14 to more fully exchange heat with the engine surface, effectively removing some of the heat generated by the engine and ensuring stable engine operation.

[0028] Preferably, the engine guard is made of aluminum alloy. Using aluminum alloy as the material for the engine guard significantly reduces weight. Specifically, aluminum alloy offers excellent properties such as low density, high strength, and excellent corrosion resistance. This allows the guard to maintain sufficient strength and rigidity while significantly reducing weight, thereby improving the motorcycle's overall handling and fuel economy.

[0029] Furthermore, the engine guard plate is integrally die-cast. This integral die-casting ensures a tight connection between the various parts of the guard plate, avoiding the problems of loose connections and susceptibility to vibration associated with traditional welding or riveting, thereby improving the overall structural strength and stability of the guard plate. Furthermore, this integral die-casting process allows the engine guard plate to be made as thin as possible, thereby reducing the overall weight of the motorcycle after installation and contributing to a certain improvement in fuel efficiency.

[0030] Preferably, the outer surface of the engine guard is provided with an anti-corrosion layer. It should be noted that during use, the engine guard is directly exposed to various harsh environments, such as moisture, salt spray, and dust, all of which can cause corrosion and damage to the guard. The presence of the anti-corrosion layer can effectively isolate these harmful factors, protecting the guard from corrosion and erosion, thereby extending the service life of the guard.

[0031] See Figure 1 Preferably, the first mounting hole 15, the second mounting hole 16, and the third mounting hole 17 are all circular mounting holes, and are provided with a rubber pad 18 with an I-shaped cross-section. The two ends of the rubber pad 18 abut against two opposing side surfaces of the circular mounting hole. The provision of the rubber pad 18 with an I-shaped cross-section enhances the shock absorption and noise reduction effects after the guard plate is installed. Specifically, the rubber pad 18 has excellent elasticity and toughness, and can fit tightly between the mounting hole and the mounting member, forming an effective shock-absorbing layer. When the engine vibrates, the rubber pad 18 can absorb and disperse the vibration energy, reducing the possibility of vibration being transmitted to the guard plate. At the same time, the rubber pad 18 can also reduce direct friction and collision between metal parts, further reducing noise generation. In addition, the I-shaped cross-section design of the rubber pad 18 increases the contact area between the rubber pad 18 and the side of the mounting hole, improving the stability and durability of the rubber pad 18, making it better able to resist vibration and impact, thereby extending its service life. At the same time, the I-shaped cross-section can also increase the elastic recovery ability of the rubber pad 18, so that it can return to its original shape more quickly after being subjected to vibration and impact, thereby maintaining the continuity and stability of the shock absorption and noise reduction effects.

[0032] The present invention provides an engine guard plate, comprising a bottom plate 10, a first side plate 20, and a second side plate 30. First, the bottom plate 10 adopts a streamlined design, which not only optimizes aerodynamic performance and reduces driving resistance, but also the bottom plate 10, the first curved portion 12, and the second curved portion 13 are arranged to fit the engine contour, providing comprehensive and efficient protection for the bottom of the motorcycle engine and the front of the exhaust, thereby avoiding damage from sand and gravel; secondly, an air inlet 50 is provided in the middle of the second curved portion 13, and the air inlet 50 allows fresh cold air to enter during driving. Through the streamlined design of the bottom plate 10, the incoming cold air passes through the narrow space between the bottom plate 10 and the engine at high speed, thereby forming a strong airflow. This airflow flows closely along the surface of the engine, effectively removing the heat generated by the engine, significantly reducing the engine temperature and avoiding performance degradation and potential failures caused by overheating. At the same time, part of the heat removed by the airflow is discharged from the tail, and part of the heat is discharged from the heat dissipation holes 14. Thirdly, the setting of the cross-flow duct 60 allows the air to be guided by the cross-flow duct 60 during the driving of the motorcycle and blow directly to the side of the engine, effectively removing the heat generated by the side of the engine when it is running. At the same time, it provides a convenient installation method through the first mounting hole 15, the second mounting hole 16 and the third mounting hole 17, enhancing the practicality and stability of the guard plate. Therefore, the engine guard plate provides comprehensive and efficient protection and heat dissipation performance for the motorcycle engine, ensuring the stability and reliability of the engine under harsh road conditions and long-term operation, thereby providing the rider with a safer and more comfortable driving experience.

[0033] The above disclosures are merely some preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An engine guard plate, characterized in that: It includes a bottom plate, a first side plate and a second side plate. The bottom plate is streamlined and includes a straight portion, a first curved portion and a second curved portion connected end to end. An oil drain hole is provided at the junction of the first curved portion and the straight portion. A plurality of heat dissipation holes are provided on the first curved portion. A first mounting hole is provided on the side of the second curved portion close to the first curved portion, and an air inlet is provided in the middle of the second curved portion. The first side plate and the second side plate are respectively arranged on both sides of the bottom plate, and a cross-flow air duct is provided on the side of the first side plate and the second side plate close to the second curved portion. A second mounting hole is provided on the side of the first side plate close to the straight portion, and two third mounting holes are provided on the side of the second side plate close to the straight portion.

2. The engine guard according to claim 1, wherein: The air inlet is a square air inlet, and the square air inlet occupies 1 / 4 to 1 / 3 of the area of ​​the second arc-shaped portion.

3. The engine guard according to claim 1, wherein: The cross-flow air duct includes a cross-flow air port recessed into the first side plate or the second side plate, an air induction plate arranged on the side of the cross-flow air port, two connecting plates connected to the air induction plate, and a wind shield connected to the ends of the two connecting plates.

4. The engine guard according to claim 3, characterized in that: The side edge of the cross-flow air duct close to one side of the bottom plate to the bottom plate is the air induction plate, and the air induction plate is recessed toward one side of the first side plate or the second side plate.

5. The engine guard according to claim 1, wherein: The heat dissipation holes include a plurality of first strip heat dissipation hole groups and a plurality of second strip heat dissipation holes arranged at intervals. The first strip heat dissipation hole group includes two identical first strip heat dissipation holes arranged in a straight line, and the second strip heat dissipation holes are staggered between the two first strip heat dissipation holes.

6. The engine guard according to claim 1, wherein: The engine guard plate is made of aluminum alloy plate.

7. The engine guard according to claim 6, wherein: The engine guard plate is integrally die-cast.

8. The engine guard according to claim 1, wherein: The outer surface of the engine guard plate is provided with an anti-corrosion layer.

9. The engine guard according to claim 1, wherein: The first mounting hole, the second mounting hole and the third mounting hole are all circular mounting holes. A rubber pad with an I-shaped cross section is provided on the circular mounting hole, and two ends of the rubber pad are respectively in contact with two opposite side surfaces of the circular mounting hole.

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