Motorcycle abdominal protection structure and motorcycle

Abstract

The application provides a motorcycle abdominal protection structure and a motorcycle, and belongs to the technical field of airbag installation. The motorcycle abdominal protection structure comprises a frame base body, a plurality of guide plates and a decorative plate. The frame base body is provided with an installation cavity with an open top surface. The installation cavity is arranged between an oil tank and a cushion part and used for accommodating an airbag. The plurality of guide plates are arranged at intervals around the airbag. Each guide plate is fixed to the inner wall of the installation cavity and extends upwards. The decorative plate is connected to the top of the frame base body and seals the top of the installation cavity. The decorative plate is connected to the upper ends of the plurality of guide plates. The decorative plate is provided with a tear line corresponding to the ejection direction of the airbag. Each guide plate is provided with a curvature on the side facing the airbag, and the curvature is used for guiding the airbag to eject outward. The motorcycle abdominal protection structure and the motorcycle can guide the ejection direction of the airbag and effectively improve the safety of motorcycle driving.

Description

Technical Field

[0001] This application belongs to the field of airbag installation technology, and more specifically, relates to a motorcycle abdominal protection structure and a motorcycle. Background Technology

[0002] Airbags typically contain gas generators of varying sizes. In the event of a motorcycle collision, the gas generator inflates the airbag body and deploys to protect the driver. Airbags are usually installed in a cavity near the driver's abdomen on the motorcycle body, and this cavity is designed to allow for inflation, so that the airbag can impact the cover under pressure and eject from the cavity.

[0003] Under the preset conditions, the airbag should deploy to the driver's abdomen after inflation. However, in actual tests, due to the influence of inflation time and installation angle, the deployment direction of some airbags is prone to deviate, causing the deployment direction to deviate from the preset trajectory, thus affecting its actual effectiveness. Utility Model Content

[0004] The purpose of this application is to provide a motorcycle abdominal protection structure and a motorcycle, which aims to solve the technical problems of existing abdominal airbags having difficulty controlling the deployment direction, being prone to deviation, and affecting the protective effect.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, a protective structure for the underbelly of a motorcycle is provided, comprising: The vehicle frame base has an open mounting cavity on the top surface; the mounting cavity is located between the fuel tank and the seat cushion and is used to accommodate the airbag; Multiple guide plates are spaced apart around the airbag; each guide plate is fixed to the inner wall of the mounting cavity and extends upwards; and A decorative panel is connected to the top of the vehicle frame base and closes the top of the mounting cavity; the decorative panel is correspondingly connected to the upper extension of the plurality of guide plates; the decorative panel is provided with a tear line corresponding to the airbag deployment direction; Each of the guide plates has an arc on the side facing the airbag, and the arc is used to guide the airbag to pop outward.

[0006] Compared with the prior art, the solution shown in this application, by installing the airbag in the mounting cavity between the fuel tank and the seat, allows the airbag to deploy in the event of a collision, positioned between the fuel tank and the driver's abdomen. A decorative panel covers the top of the mounting cavity, sealing it and providing support for the cavity top while maintaining the motorcycle's aerodynamic shape and aesthetics. The spaced guide plates in this application effectively support the decorative panel, ensuring its stability, and guide the airbag deployment direction. Specifically, the guide plate has an arc on the side facing the airbag, allowing the arc side to abut against the outer wall of the airbag during inflation, thus guiding the airbag's inflation and deployment direction. This ensures the airbag aligns with the tear line on the decorative panel, reducing the risk of the airbag deviating from its intended trajectory and affecting its protective effect due to a deviation in deployment direction. It also avoids the problem of the airbag being too far from the tear line, affecting its deployment.

[0007] Therefore, the motorcycle abdominal protection structure provided in this application embodiment can effectively guide the airbag deployment direction, reduce the risk of airbag deployment direction deviation, effectively ensure the airbag deployment effect, reduce the risk to the driver during a collision, and help improve the safety of motorcycle driving.

[0008] In one possible implementation, the decorative panel has a pop-out notch recessed outward from the mounting cavity, and the tear line is located at the center of the pop-out notch.

[0009] By setting an ejection notch, the support and connection strength of the decorative panel near the tear line can be reduced, which is beneficial for the airbag to break through the ejection notch and deploy smoothly.

[0010] In some embodiments, the decorative panel includes: A connecting plate is disposed at the top of the mounting cavity and is fixedly connected to the vehicle frame base; the connecting plate is provided with mounting holes corresponding to the upper and lower parts of the airbag; the connecting plate is connected to the upper extension of the guide plate; A tear plate is provided at the mounting hole and is fixedly connected to the connecting plate; the tear plate is provided with the pop-out notch.

[0011] By separating the decorative panel into a connecting plate and a tear plate, the connecting plate ensures the connection and support strength of the decorative panel, while the tear plate is torn by the airbag when it deploys. This creates a strength gradient layer on the decorative panel, namely, a primary tear at the deployment notch, a secondary tear at the tear plate, and an intermediate buffer at the connecting plate. This gradual strength gradient adapts to the deployment of the airbag and effectively buffers the vehicle frame base connected to the decorative panel, achieving a reasonable transition from the tear zone to the protective layer.

[0012] For example, the connecting plate is provided with: A reinforcing ring plate is disposed around the mounting hole, and the reinforcing ring plate extends into the mounting cavity; Multiple reinforcing ribs are spaced apart around the outer peripheral wall of the reinforcing ring plate; the reinforcing ribs are fixedly connected to the inner wall of the mounting cavity and the connecting plate.

[0013] The reinforcing ring plate is used to increase the support strength of the connecting plate at the mounting hole, and the reinforcing rib plate is used to increase the connection and support strength at the connection between the connecting plate and the frame base.

[0014] In one possible implementation, the airbag has a mounting base at its bottom, and the airbag is detachably connected to the bottom of the mounting cavity via the mounting base.

[0015] The mounting bracket is used to effectively secure the airbag, ensuring the stability of the airbag connection.

[0016] In some embodiments, the mounting base includes: The base is fixed to the bottom of the mounting cavity; Mounting plates are arranged parallel to and spaced apart above the base, and the front end of the mounting plates is hinged to the base. An adjusting member is connected at its lower end to the rear end of the base and at its upper end to the rear end of the mounting plate. The adjusting member is used to adjust the distance between the rear end of the base and the rear end of the mounting plate so that the mounting plate drives the airbag to rotate around its hinge side until the top center of the airbag is aligned with the tear line.

[0017] By setting an adjustment component, the connection angle between the mounting plate and the base can be adjusted so that the mounting plate can drive the airbag to rotate around the hinge side of the mounting plate, thereby aligning the top center of the airbag with the tear line.

[0018] For example, the adjusting member includes: The connecting screw has its upper end inserted into the mounting plate and its lower end inserted into the base; A spherical nut is located at the top of the base and screwed onto the lower end of the connecting screw; and Two sets of limiting nut plates are respectively clamped on the upper and lower sides of the mounting plate and screwed to the upper end of the connecting screw. The mounting plate has a through-hole extending radially along the airbag; the upper end of the connecting screw passes through the connecting hole; when the mounting plate rotates around its hinge side, the connecting screw slides within the connecting hole along its extension direction; after the mounting plate rotates around its hinge side until the airbag aligns with the tear line, two sets of limiting nuts clamp the mounting plate from above and below.

[0019] By setting a connecting nut, the lower end of the connecting screw is fixed, while the upper end of the connecting screw slides within the connecting hole. Specifically, when the mounting plate rotates up and down around the hinge side, the mounting plate moves the connecting hole accordingly. At this time, the upper end of the connecting screw can slide within the connecting hole. After the tilt angle of the mounting plate changes, the mounting plate can tilt the airbag accordingly. When the mounting plate tilts until the top center of the airbag aligns with the tear line, the mounting plate is clamped up and down by two sets of limit nuts, thus fixing the position of the mounting plate.

[0020] For example, the connecting nut is a spherical nut, and the base is provided with mounting ball holes that correspond to the connecting hole above and below, and the spherical nut is rotatably connected in the mounting ball holes.

[0021] By setting a mounting ball hole, the spherical nut is rotatably connected to the base, which in turn drives the connecting screw to rotate. This further causes the upper end of the connecting screw to slide within the connecting hole, allowing the connecting screw to tilt to a state perpendicular to the mounting plate. This increases the contact area between the limit nut plate and the mounting plate, thereby increasing the force-bearing area and protecting both the limit nut plate and the mounting plate.

[0022] In some embodiments, the adjusting member includes: Multiple inclined pads, the lower side of which is used to abut against the top of the base; the upper side of each of the inclined pads extends upward at an angle to abut against the bottom of the mounting plate; and the multiple inclined pads have different inclination angles. The connecting bolts pass sequentially through the mounting plate and one of the inclined pads in a direction perpendicular to the mounting plate, and are tightened into the base by nuts.

[0023] By setting multiple tilting pads at different angles, the mounting plate can be made to form the required tilt angle when it abuts against the tilting pads, thereby aligning the top center of the airbag with the tear line.

[0024] Secondly, this application also provides a motorcycle, including the aforementioned motorcycle belly protection structure.

[0025] The motorcycle provided in this application embodiment has all the beneficial effects of the above-mentioned motorcycle abdominal protection structure because it includes the above-mentioned motorcycle abdominal protection structure. It can reduce the risk of airbag deflection by effectively guiding the airbag deployment direction, thereby ensuring that the airbag is effectively supported between the fuel tank and the driver's abdomen when it deploys, reducing the risk to the driver during a collision, and improving the safety and stability of motorcycle driving. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the installation structure of the motorcycle belly protection structure provided in the embodiments of this application; Figure 2 This is a cross-sectional structural diagram of the motorcycle belly protection structure provided in an embodiment of this application; Figure 3 For the appendix Figure 2 Enlarged structural diagram at point A Figure 1 ; Figure 4 For the appendix Figure 2 Enlarged structural diagram at point A Figure 2 .

[0028] In the diagram: 1. Frame base; 11. Mounting cavity; 12. Fuel tank; 13. Seat cushion; 2. Guide plate; 3. Decorative panel; 31. Connecting plate; 32. Tear plate; 321. Pop-out notch; 322. Tear line; 33. Reinforcing ring plate; 34. Reinforcing rib plate; 4. Airbag; 5. Mounting seat; 51. Base; 511. Mounting ball hole; 52. Mounting plate; 521. Connecting hole; 53. Adjusting component; 531. Connecting screw; 532. Ball nut; 533. Limiting nut plate; 534. Inclined pad; 535. Connecting bolt. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] It should be noted that the orientation or positional relationship indicated by "front", "rear", "inner", "outer", "upper", and "lower" in this embodiment is based on the orientation of the motorcycle itself. Among them, the front of the motorcycle represents "front", the rear of the motorcycle represents "rear", the top of the motorcycle represents "upper", the bottom of the motorcycle represents "lower", the "inner" side refers to the side facing into the mounting cavity 11, and the "outer" side refers to the side facing out of the mounting cavity 11.

[0033] In addition, the front-back direction defined in the embodiments of this application refers to the front-back direction of the motorcycle's forward movement during travel, and the up-down direction defined refers to the up-down direction of the motorcycle's forward movement during travel.

[0034] It is important to understand that while the airbag 4 will deploy after inflation, it does not deploy immediately upon initial inflation. Instead, while still inside the mounting cavity 11, a certain amount of gas is first injected into the airbag 4 via a gas generator, causing the top of the airbag 4 to contact the cover plate in conventional technology. At this point, the pressure inside the airbag 4 is sufficient to break through the cover plate and deploy it from the mounting cavity 11. After the airbag 4 deploys, the gas generator continues to inflate the airbag 4 to a preset time or volume to achieve the protective function. It is important to understand that the inflation process of the airbag 4 is very rapid, and the inflation time is also very short. Therefore, the actual inflation time of the airbag 4 within the mounting cavity 11 is very short.

[0035] In the prior art, due to the uncertainty of the motorcycle's displacement or tipping after a collision, the airbag 4 may also shift during the inflation process. Furthermore, due to limitations in the machining accuracy of the mounting parts and the size requirements of different motorcycle models, it cannot be guaranteed that the top center of the airbag 4 is aligned with the tear line 322. In particular, if it deviates from the tear line 322, the deployment of the airbag 4 may be obstructed. Therefore, the deployment direction of the airbag 4 is prone to deviate during deployment, and this deviation in deployment direction will directly affect the protective effect of the airbag 4.

[0036] Please refer to the following: Figures 1 to 4 The present application describes the motorcycle belly protection structure and the motorcycle itself. The motorcycle belly protection structure includes a frame base 1, multiple guide plates 2, and a decorative plate 3. The frame base 1 has an open mounting cavity 11. The mounting cavity 11 is located between the fuel tank 12 and the seat 13 and is used to accommodate the airbag 4. Multiple guide plates 2 are spaced around the airbag 4. Each guide plate 2 is fixed to the inner wall of the mounting cavity 11 and extends upward. The decorative plate 3 is connected to the top of the frame base 1 and closes the top of the mounting cavity 11. The decorative plate 3 is correspondingly connected to the upper extension of the multiple guide plates 2. The decorative plate 3 has a tear line 322 corresponding to the deployment direction of the airbag 4. Each guide plate 2 has an arc on the side facing the airbag 4, and the arc is used to guide the airbag 4 to deploy outward.

[0037] It should be understood that the airbag 4 installed in this application needs to deploy towards the driver's abdomen. Therefore, its actual installation direction is tilted relative to the horizontal plane, and the top center of the airbag 4 after installation is oriented towards the tear line 322. Therefore, the up and down referred to in this application are relative up and down, and not absolutely vertical up and down.

[0038] Specifically, in this application, the guide plate 2 extends upward at one end. Its direction of extension is not absolutely vertical upward, but relative to the lower end fixed in the mounting cavity 11, meaning it is relatively upward.

[0039] Specifically, the number of guide plates 2 can be selectively set according to actual needs; preferably, two sets are set on the front and rear sides of the airbag 4, and three sets are set on the left and right sides of the airbag 4; furthermore, the interval between two adjacent guide plates 2 can be equal or unequal; the specific interval distance can be reasonably set according to the motorcycle model.

[0040] Furthermore, each guide plate 2 has a curvature, but the curvature formed by the bending of each guide plate 2 towards the side of the airbag 4 is different, but overall it is used to guide the airbag 4 to deploy towards the driver's abdomen. In addition, it should be understood that the guide plate 2 provided in this application can guide the deployment direction of the airbag 4 compared with the prior art, but it is not intended to achieve precise positioning of the deployment direction of the airbag 4.

[0041] Specifically, the side of each guide plate 2 facing the airbag 4 is defined as the curved side, which has the aforementioned curvature. The curved side of the guide plate 2 located in front of the airbag 4 is recessed forward from the airbag 4, and the upper end of the guide plate 2 at this location extends backward at a slight inclination, so that the airbag 4 is deflected towards the driver's abdomen at the rear. The curved side of the guide plate 2 located behind the airbag 4 protrudes forward, i.e., protrudes towards the airbag 4, and the upper end of the guide plate 2 at this location extends backward at a slight inclination, so that the airbag 4 is deflected towards the driver's abdomen at the rear. The guide plates 2 located on the left and right sides of the airbag 4 mainly serve to surround the airbag 4 and guide the airbag 4 to pop out towards the center, rather than deflecting to the left or right.

[0042] Therefore, during the inflation of the airbag 4, the curved side of the guide plate 2 can abut against the outer peripheral wall of the airbag 4, thereby guiding and restricting the ejection direction of the airbag 4, so that it ejects according to the preset trajectory.

[0043] It should be noted that the decorative panel 3 should have a streamlined structure with a certain bend or curvature to adapt to the streamlined shape of the motorcycle and reduce wind resistance during riding. Furthermore, the end of the decorative panel 3 near the seat 13 has a protrusion that extends upwards above the seat 13 for frontal protection of the driver.

[0044] Specifically, the airbag 4 includes a gas generator, a mounting housing, and an airbag body. The deployment of the airbag 4 referred to in this application refers to the deployment of the airbag body. Since the specific structure of the airbag 4 is not within the scope of protection of this application, it will not be described in detail here. When the vehicle body collides, the gas generator is triggered and begins to inflate the airbag body of the airbag 4. After the airbag body is inflated to the point where the top of the airbag body touches the tear line 322 of the tear plate 32, the pressure inside the airbag body is sufficient to break through the tear line 322 and deploy the decorative plate 3. During the deployment process, the airbag body continues to inflate until the preset inflation time is met, forming a protective bag between the driver's abdomen and the motorcycle frame base 1. It should be understood that the actual inflation time is very short.

[0045] Compared with the prior art, the motorcycle abdominal protection structure provided in this application, by installing the airbag 4 in the mounting cavity 11 between the fuel tank 12 and the seat 13, allows the airbag 4 to deploy in the event of a collision and be positioned between the fuel tank 12 and the driver's abdomen. The decorative panel 3 covers the top of the mounting cavity 11, sealing it and providing support for the top of the cavity, while maintaining the motorcycle's aerodynamic shape and ensuring its aesthetics. The spaced guide plates 2 effectively support the decorative panel 3, ensuring its stability. On the other hand, it can guide the deployment direction of the airbag 4. Specifically, the guide plate 2 has an arc on the side facing the airbag 4. During the inflation of the airbag 4, the arc side of the guide plate 2 can abut against the outer peripheral wall of the airbag 4, thereby guiding the inflation and deployment direction of the airbag 4. This ensures that the airbag 4 is aligned with the tear line 322 on the decorative panel 3, reducing the risk that the airbag 4 will deviate from the preset trajectory due to the deviation in the deployment direction of the airbag 4, thus affecting the protective effect. At the same time, it avoids the problem that the airbag 4 will be affected by moving away from the tear line 322.

[0046] The design of the guide plate 2 and decorative plate 3 in this application ensures that the airbag 4 is rationally arranged and supported within the mounting cavity 11. The coordinated operation of all components guarantees the integrity and stability of the entire abdominal protection structure. Specifically, the frame base 1 provides the basic mounting framework, while the guide plate 2 and decorative plate 3 further enhance the enclosure and guidance environment for the airbag 4, ensuring that the airbag 4 can reliably function in emergency situations such as vehicle collisions, protecting the driver's abdominal safety. Therefore, the motorcycle abdominal protection structure provided in this embodiment reduces the risk of airbag 4 deviating from its deployment direction, thus improving motorcycle driving safety.

[0047] Please see Figure 2 In some possible embodiments, the decorative panel 3 is provided with a pop-out notch 321 that is recessed outward from the mounting cavity 11, and a tear line 322 is provided at the center of the pop-out notch 321.

[0048] By setting the pop-out notch 321, the support and connection strength of the decorative panel 3 near the tear line 322 can be reduced, which is conducive to the airbag 4 breaking through the pop-out notch 321 and popping out smoothly.

[0049] It's important to understand that the design of the ejection notch 321 allows the airbag 4 to penetrate the trim panel 3 more smoothly upon deployment. Specifically, the recessed ejection notch 321, with its lower connection strength, provides a concentrated ejection channel for the airbag 4. This helps the airbag 4 deploy quickly and accurately, avoiding unnecessary obstruction or dispersion during deployment, thus more effectively fulfilling its protective function. Compared to a design without the specific ejection notch 321, this design better enables the airbag 4 to deploy, enhancing protection for the driver's abdomen. Please see Figure 2 In some embodiments, the decorative panel 3 includes a connecting plate 31 and a tear plate 32; the connecting plate 31 is disposed on the top of the mounting cavity 11 and is fixedly connected to the vehicle frame base 1; the connecting plate 31 is provided with mounting holes corresponding to the upper and lower parts of the airbag 4; the connecting plate 31 is connected to the extended upper end of the guide plate 2; the tear plate 32 is disposed on the mounting holes and is fixedly connected to the connecting plate 31; the tear plate 32 is provided with a pop-out notch 321.

[0050] It should be understood that when the airbag 4 deploys, the tear plate 32 breaks, while the connecting plate 31 mainly serves as a transition. The part of the connecting plate 31 near the mounting hole may remain intact or may crack or break. However, the part of the connecting plate 31 near the frame base 1 can still be effectively connected, so as to effectively ensure the integrity of the frame base 1 through the transition of the connecting plate 31.

[0051] By dividing the decorative panel 3 into a connecting plate 31 and a tear plate 32, the connecting plate 31 can ensure the connection and support strength of the decorative panel 3, while the tear plate 32 is torn by the airbag 4 when it deploys. Thus, a strength gradient layer can be formed at the decorative panel 3, namely, the first-level tear at the deployment notch 321, the second-level tear at the tear plate 32, and the intermediate buffer at the connecting plate 31. The strength gradient adapts to the deployment of the airbag 4 and effectively buffers the vehicle frame base 1 connected to the decorative panel 3, achieving a reasonable transition from the tear zone to protection.

[0052] Therefore, the aforementioned gradient layered design allows the decorative panel 3 to not only fulfill the function of the top of the enclosed mounting cavity 11, but also to conveniently set up structures related to the deployment of the airbag 4, making the deployment process of the airbag 4 more reasonable and orderly, and improving the reliability and practicality of the entire abdominal protection structure.

[0053] It should be noted that during the deployment of the airbag 4, although it will successfully deploy through the tear line 322, it will damage the decorative panel 3. However, in this application, the damaged decorative panel 3 will not harm the driver. Specifically, in this application, the decorative panel 3 is divided into a tear plate 32 and a connecting plate 31. When the airbag 4 deploys, the tear plate 32 may crack or break at the tear line 322. However, on the one hand, since there is a connecting plate 31 between the tear plate 32 and the driver's seat cushion 13, and the connecting plate 31 is supported by the reinforcing ring plate 33 and multiple reinforcing ribs 34, it will not... The airbag 4 is damaged, thus creating a buffer between the driver and the tear plate 32, preventing direct impact on the driver. On the other hand, the airbag 4 continues to enlarge after the tear line 322 is deployed, and the enlarged size of the airbag 4 is larger than the size of the tear plate 32. Therefore, the driver will directly contact the airbag 4, so it will not cause injury to the driver. Furthermore, the aforementioned deployment notch 321 is provided on the tear plate 32 closest to the tear line 322. The strength of the tear plate 32 is relatively low at this location, so even if the tear plate 32 contacts the driver, the deployment notch 321 will not cause injury to the driver.

[0054] Please see Figure 2 For example, the connecting plate 31 is provided with a reinforcing ring plate 33 and a plurality of reinforcing ribs 34; the reinforcing ring plate 33 is arranged around the mounting hole and extends into the mounting cavity 11; the plurality of reinforcing ribs 34 are arranged at intervals around the outer peripheral wall of the reinforcing ring plate 33; the reinforcing ribs 34 are fixedly connected to the inner cavity wall of the mounting cavity 11 and the connecting plate 31.

[0055] The reinforcing ring plate 33 is used to increase the support strength of the connecting plate 31 at the mounting hole, and the reinforcing rib plate 34 is used to increase the connection and support strength at the connection between the connecting plate 31 and the frame base 1.

[0056] In this application, by setting up a reinforcing ring plate 33 and a reinforcing rib plate 34, the gradual layering structure of the decorative panel 3 achieves a gradual change in connection strength, effectively realizing a reasonable transition of the connecting plate 31, and increasing the orderliness and rationality of the breakage of the decorative panel 3.

[0057] It is important to understand that the reinforcement ring plate 33 and the reinforcement rib plate 34 significantly enhance the strength and stability of the connecting plate 31. When the airbag 4 deploys and generates impact force, they can effectively disperse and withstand the pressure. While protecting the connecting plate 31, they effectively prevent the frame base 1 from deforming or being damaged due to excessive force, ensuring the normal function of the frame base 1 and the entire abdominal protection structure, guaranteeing the reliability of the airbag 4 deployment, and thus improving the protection capability for the driver's abdomen.

[0058] Please see Figure 2In some possible embodiments, the airbag 4 is provided with a mounting base 5 at its bottom, and the airbag 4 is detachably connected to the bottom of the mounting cavity 11 via the mounting base 5.

[0059] Mounting base 5 is used to effectively fix the airbag 4 to ensure the connection stability of the airbag 4.

[0060] It is important to understand that the mounting base 5 is detachably connected to the bottom of the mounting cavity 11. This detachable connection makes the installation and removal of the airbag 4 more convenient. When the airbag 4 needs to be inspected, maintained, or replaced, it can be easily removed from the bottom of the mounting cavity 11 without complicated operations or damage to the overall structure. This improves the maintenance efficiency and service life of the airbag 4, and also facilitates the proper handling and adjustment of the airbag 4 during production, transportation, and installation.

[0061] Specifically, the airbag 4 can be detachably connected to the mounting base 5 via bolts or screws; or, the airbag 4 can be detachably connected to the mounting base 5 via a snap-fit ​​structure. The specific connection method can be selectively set according to actual needs.

[0062] Please see Figure 3 In some embodiments, the mounting base 5 includes a base 51, a mounting plate 52, and an adjusting member 53; the base 51 is fixed to the bottom of the mounting cavity 11; the mounting plate 52 is parallel and spaced above the base 51, and the front end of the mounting plate 52 is hinged to the base 51; the lower end of the adjusting member 53 is connected to the rear end of the base 51, and the upper end is correspondingly connected to the rear end of the mounting plate 52; the adjusting member 53 is used to adjust the distance between the base 51 and the mounting plate 52 so that the mounting plate 52 drives the airbag 4 to rotate around its hinge side until the top center of the airbag 4 is aligned with the tear line 322.

[0063] By setting the adjustment component 53, the connection angle between the mounting plate 52 and the base 51 can be adjusted so that the mounting plate 52 drives the airbag 4 to rotate around the hinge side of the mounting plate 52, thereby aligning the top center of the airbag 4 with the tear line 322.

[0064] Through the aforementioned adjustable structural design, the position of the airbag 4 can be further adjusted according to the actual installation situation and the state of the airbag 4, ensuring that the airbag 4 can be accurately aligned with the tear line 322 when it deploys, thereby deploying more effectively and playing a protective role, and improving the adaptability and accuracy of the abdominal protection structure.

[0065] It should be noted that the aforementioned adjustment component 53 can only adjust the tilt angle of the mounting plate 52 to a certain extent, and the adjustment range is actually not large. The streamlined structural design of the motorcycle also needs to be taken into account during the adjustment process. Therefore, the adjustment range of the airbag 4 is not particularly large. Therefore, after adjustment, the airbag 4 can be aligned with the tear line 322, but it is not a precise alignment.

[0066] Furthermore, it should be understood that during adjustment, the mounting plate 52 causes the airbag 4 to rotate around the hinge side of the mounting plate 52. After the adjustment is in place, the position of the mounting plate 52 needs to be fixed. This adjustment process is carried out during the installation of the airbag 4. At the same time, during subsequent inspection and maintenance, fine adjustments can be made to address changes in the position of the airbag 4.

[0067] Please see Figure 3 For example, the adjusting component 53 includes a connecting screw 531, a connecting nut, and two sets of limiting nut plates 533; the upper end of the connecting screw 531 passes through the mounting plate 52, and the lower end passes through the base 51; the connecting nut is located on the top of the base 51 and is screwed to the lower end of the connecting screw 531; the two sets of limiting nut plates 533 are correspondingly clamped on the upper and lower sides of the mounting plate 52 and screwed to the upper end of the connecting screw 531; wherein, the mounting plate 52 is provided with a vertically through connecting hole 521, which extends radially along the airbag 4; the upper end of the connecting screw 531 passes through the connecting hole 521; when the mounting plate 52 rotates around its hinge side, the connecting screw 531 slides in the connecting hole 521 along its extension direction; after the mounting plate 52 rotates around its hinge side until the airbag 4 is aligned with the tear line 322, the two sets of limiting nut plates 533 clamp the mounting plate 52 from top to bottom.

[0068] By setting a connecting nut, the lower end of the connecting screw is fixed, while the upper end of the connecting screw 531 slides within the connecting hole 521. Specifically, when the mounting plate 52 rotates up and down around the hinge side, the mounting plate 52 causes the connecting hole 521 to move accordingly. At this time, the upper end of the connecting screw 531 can slide within the connecting hole 521. After the tilt angle of the mounting plate 52 changes, the mounting plate 52 can cause the airbag 4 to tilt accordingly. When the mounting plate 52 tilts until the top center of the airbag 4 is aligned with the tear line 322, the mounting plate 52 is clamped up and down by two sets of limiting nut plates 533, thereby fixing the position of the mounting plate 52.

[0069] It should be noted that the width of the connecting hole 521 in the direction perpendicular to its extension is equal to the radial dimension of the connecting screw 531, so as to avoid the connecting screw 531 from shifting in the direction perpendicular to the extension of the connecting hole 521.

[0070] When the mounting plate 52 rotates around its hinge side, the connecting screw 531 slides within the connecting hole 521 along its extending direction. When the connecting nut is a common nut, it actually fixes the lower end of the connecting screw 531, so the position of the connecting screw 531 remains unchanged. The mounting plate 52, however, moves the connecting hole 521, causing relative sliding between the connecting screw 531 and the connecting hole 521. This allows the connecting screw 531 to slide within the connecting hole 521 along its extending direction. When the mounting plate 52 is rotated until the airbag 4 is aligned with the tear line 322, the two sets of limit nut plates 533 clamp the mounting plate 52 from top to bottom, which can fix the position of the mounting plate 52.

[0071] The design of this adjusting component 53 is ingenious. It utilizes the cooperation between the connecting screw 531 and the connecting hole 521 to achieve the rotational adjustment of the mounting plate 52. The connecting nut and the limiting nut plate 533 ensure the flexibility and stability of the adjustment. It can accurately adjust the position of the airbag 4 and fix it after adjustment, ensuring the accuracy and reliability of the airbag 4 deployment.

[0072] It should be noted that when the connecting nut is a regular nut, the connecting screw 531 is no longer perpendicular to the mounting plate 52 after the mounting plate 52 changes its tilt angle. Therefore, the limiting nut plate 533 cannot completely abut against the upper or lower side of the mounting plate 52. Thus, the limiting nut plate 533 is actually only partially abutting against the mounting plate 52.

[0073] Please see Figure 3 For example, the connecting nut is a ball nut 532, and the base 51 is provided with mounting ball holes 511 that correspond to the connecting hole 521. The ball nut 532 is rotatably connected in the mounting ball hole 511.

[0074] By setting the mounting ball hole 511, the spherical nut 532 is rotatably connected to the base 51, thereby causing the spherical nut 532 to drive the connecting screw 531 to rotate. This further causes the upper end of the connecting screw 531 to slide within the connecting hole 521, so that the connecting screw 531 is tilted to a state perpendicular to the mounting plate 52. This increases the contact area between the limiting nut plate 533 and the mounting plate 52, increases the force-bearing area, and thus protects the limiting nut plate 533 and the mounting plate 52.

[0075] It is important to understand that during the above adjustment process, the tilt angle of the mounting plate 52 needs to be adjusted first so that the top center of the airbag 4 is aligned with the tear line 322. During this process, the mounting plate 52 drives the connecting hole 521 to move relative to the connecting screw 531. After the mounting plate 52 is adjusted into place, the connecting screw 531 can be swung to rotate around the rotating nut at the lower end, thereby making the connecting screw 531 perpendicular to the mounting plate 52. Then, the two limiting nut plates 533 are tightened up and down to clamp the mounting plate 52, ensuring the support strength of the limiting nut plates 533. During this process, the connecting screw 531 slides relative to the connecting hole 521.

[0076] Please see Figure 4 In some embodiments, the adjusting member 53 includes a plurality of inclined pads 534 and connecting bolts 535; the lower side of the plurality of inclined pads 534 is used to abut against the top of the base 51; the upper side of each inclined pad 534 extends obliquely upward for abutting against the bottom of the mounting plate 52; and the inclined angles of the plurality of inclined pads 534 are different. The connecting bolts 535 pass through the mounting plate 52 and one of the inclined pads 534 in a direction perpendicular to the mounting plate 52, and are tightened in the base 51 by nuts.

[0077] By setting multiple tilting pads 534 at different angles, the mounting plate 52 is made to abut against the tilting pads 534 to form the required tilt angle, thereby aligning the top center of the airbag 4 with the tear line 322.

[0078] It is important to understand that the aforementioned inclined pad 534 is a simple yet effective design. By using the inclined pad 534, when the connecting bolt 535 is tightened, the mounting plate 52 can rotate around its hinge side, thereby adjusting the position of the airbag 4. Compared to other complex adjustment structures, this method is easier to operate and implement, meeting the need for fine-tuning the position of the airbag 4, ensuring accurate alignment of the airbag 4 with the tear line 322, and improving the protective effect of the abdominal protection structure.

[0079] It should be noted that this method requires the preparation of multiple inclined pads 534 in advance, and during installation, one type of inclined pad 534 should be selected for installation according to actual needs.

[0080] Preferably, when adjusting the mounting plate 52, the angle between the axial direction of the airbag 4 and the horizontal line can be 65°, and at this time, the angle between the mounting plate 52 and the horizontal line is 25°.

[0081] Based on the same inventive concept, this application also provides a motorcycle, including the above-described motorcycle belly protection structure.

[0082] The motorcycle provided in this application embodiment has all the beneficial effects of the above-mentioned motorcycle abdominal protection structure because it includes the above-mentioned motorcycle abdominal protection structure. By effectively guiding the deployment direction of the airbag 4, the risk of the airbag 4 deviating from its deployment direction can be reduced, thereby ensuring that the airbag 4 is effectively supported between the fuel tank 12 and the driver's abdomen when it is deployed, reducing the risk to the driver during a collision and improving the safety and stability of motorcycle driving.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective structure for the underside of a motorcycle, characterized in that, include: The frame base (1) has an open mounting cavity (11) on the top surface; the mounting cavity (11) is located between the fuel tank (12) and the seat cushion (13) and is used to accommodate the airbag (4); Multiple guide plates (2) are spaced apart around the airbag (4); each guide plate (2) is fixed to the inner wall of the mounting cavity (11) and extends upwards; and The decorative panel (3) is connected to the top of the vehicle frame base (1) and closes the top of the mounting cavity (11); the decorative panel (3) is correspondingly connected to the upper extension of the multiple guide plates (2); the decorative panel (3) is provided with a tear line (322) corresponding to the deployment direction of the airbag (4); Each of the guide plates (2) has an arc on the side facing the airbag (4), and the arc is used to guide the airbag (4) to pop outward.

2. The motorcycle belly protection structure as described in claim 1, characterized in that, The decorative panel (3) is provided with a pop-out notch (321) that is recessed outward from the mounting cavity (11), and the center of the pop-out notch (321) is provided with the tear line (322).

3. The motorcycle belly protection structure as described in claim 2, characterized in that, The decorative panel (3) includes: A connecting plate (31) is provided on the top of the mounting cavity (11) and is fixedly connected to the vehicle frame base (1); the connecting plate (31) is provided with mounting holes corresponding to the airbag (4) above and below; the connecting plate (31) is connected to the upper extension of the guide plate (2); A tear plate (32) is provided on the mounting hole and fixedly connected to the connecting plate (31); the tear plate (32) is provided with the pop-out notch (321).

4. The motorcycle belly protection structure as described in claim 3, characterized in that, The connecting plate (31) is provided with: A reinforcing ring plate (33) is disposed around the mounting hole, and the reinforcing ring plate (33) extends into the mounting cavity (11); Multiple reinforcing ribs (34) are spaced apart around the outer peripheral wall of the reinforcing ring plate (33); the reinforcing ribs (34) are fixedly connected to the inner wall of the mounting cavity (11) and the connecting plate (31).

5. The motorcycle belly protection structure as described in claim 1, characterized in that, The airbag (4) is provided with a mounting base (5) at its bottom, and the airbag (4) is detachably connected to the bottom of the mounting cavity (11) via the mounting base (5).

6. The motorcycle belly protection structure as described in claim 5, characterized in that, The mounting base (5) includes: The base (51) is fixed to the bottom of the mounting cavity (11); Mounting plates (52) are arranged parallel to and spaced above the base (51), and the front end of the mounting plates (52) is hinged to the base (51); The adjusting member (53) is connected at its lower end to the rear end of the base (51) and at its upper end to the rear end of the mounting plate (52). The adjusting member (53) is used to adjust the distance between the rear end of the base (51) and the rear end of the mounting plate (52) so that the mounting plate (52) drives the airbag (4) to rotate around its hinge side until the top center of the airbag (4) is aligned with the tear line (322).

7. The motorcycle belly protection structure as described in claim 6, characterized in that, The adjusting member (53) includes: The connecting screw (531) has its upper end inserted into the mounting plate (52) and its lower end inserted into the base (51); A connecting nut is located on the top of the base (51) and screwed onto the lower end of the connecting screw (531); and Two sets of limiting nut plates (533) are respectively clamped on the upper and lower sides of the mounting plate (52) and screwed to the upper end of the connecting screw (531); The mounting plate (52) is provided with a connecting hole (521) that extends through the upper and lower parts of the airbag (4) radially. The upper end of the connecting screw (531) passes through the connecting hole (521). When the mounting plate (52) rotates around its hinge side, the connecting screw (531) is used to slide in the connecting hole (521) along its extension direction. After the mounting plate (52) rotates around its hinge side until the airbag (4) is aligned with the tear line (322), two sets of limiting nut plates (533) clamp the mounting plate (52) from top to bottom.

8. The motorcycle belly protection structure as described in claim 7, characterized in that, The connecting nut is a spherical nut (532), and the base (51) is provided with mounting ball holes (511) that correspond to the connecting hole (521) vertically. The spherical nut (532) is rotatably connected in the mounting ball holes (511).

9. The motorcycle belly protection structure as described in claim 6, characterized in that, The adjusting member (53) includes: Multiple inclined pads (534) are provided, with their lower sides abutting against the top of the base (51); the upper sides of each of the inclined pads (534) extend upwards at an angle to abut against the bottom of the mounting plate (52); and the inclined angles of the multiple inclined pads (534) are different. A connecting bolt (535) passes sequentially through the mounting plate (52) and one of the inclined pads (534) in a direction perpendicular to the mounting plate (52), and is tightened into the base (51) by a nut.

10. A motorcycle, characterized in that, Including the motorcycle belly protection structure as described in any one of claims 1-9.

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