Fuel tank protection structure and vehicle

Abstract

The application relates to the technical field of vehicle safety protection, and provides a fuel tank protection structure and a vehicle. The fuel tank protection structure comprises a fuel tank arranged on a vehicle frame at the bottom of the vehicle and a guard plate assembly hung on the vehicle frame. The guard plate assembly comprises a guard plate body which covers the bottom of the fuel tank, and a buffer space is reserved between the guard plate body and the bottom of the fuel tank. The fuel tank protection structure has the advantages that the guard plate assembly is hung on the vehicle frame, and a buffer space is reserved between the guard plate body and the bottom of the fuel tank. When the ground is bumped or a flying stone collides with the guard plate body, the impact force is first transmitted to the vehicle frame, the buffer space between the guard plate body and the fuel tank can well buffer and absorb energy, the impact degree on the fuel tank is reduced, and the protection effect of the fuel tank is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle safety protection technology, and in particular to a fuel tank protection structure and vehicle. Background Technology

[0002] Currently, whether it's a traditional gasoline-powered vehicle or a hybrid vehicle, the fuel tank remains an important component. Typically, the fuel tank is secured to the vehicle's underframe using fuel tank straps, and a protective plate is installed at the bottom of the fuel tank. The protective plate is mounted on the side of the fuel tank and secured by the fuel tank straps.

[0003] However, in the above-mentioned protective structure, the guard plate is in direct contact with the fuel tank body. When impacted, the impact force will be quickly transmitted between the two to the fuel tank body, which lacks a buffering effect. In addition, the guard plate itself has a weak structural strength, resulting in poor protection effect for the fuel tank and low durability. Utility Model Content

[0004] In view of this, this application aims to propose a fuel tank protection structure to improve the protection effect of the fuel tank.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A fuel tank protection structure includes a fuel tank mounted on a frame at the bottom of a vehicle, and a protective plate assembly suspended on the frame; the protective plate assembly includes a protective plate body that covers the bottom of the fuel tank, and a buffer space is provided between the protective plate body and the bottom of the fuel tank.

[0007] Furthermore, the protective plate body is formed with a plurality of protrusions that protrude toward the fuel tank, and soft pads are provided on the protrusions.

[0008] Furthermore, the boss includes a central boss located in the middle of the protective plate body and a plurality of side bosses located on the side of the protective plate body; a recessed cavity is formed between the central boss and the side bosses, which is recessed relative to the boss, and a weight reduction hole is provided at the bottom of the recessed cavity.

[0009] Furthermore, the edge of the protective plate body is formed with a first flange, which bends towards the upper side of the protective plate body and forms protection for the bottom edge of the fuel tank.

[0010] Furthermore, the frame includes longitudinal beams arranged on the left and right sides of the bottom of the vehicle, and a front crossbeam and a rear crossbeam spaced apart between the two longitudinal beams; the fuel tank is located between the front crossbeam and the rear crossbeam, and is tied to the front crossbeam and the rear crossbeam by fuel tank straps, and the guard plate assembly abuts against the fuel tank straps at the bottom of the fuel tank, forming the buffer space on both sides of the fuel tank straps.

[0011] Furthermore, the skid plate assembly is suspended on the vehicle frame by multiple lifting brackets, with the top of the lifting brackets connected to the vehicle frame and the bottom of the lifting brackets connected to the edge of the skid plate body.

[0012] Furthermore, the lifting bracket includes connecting arms extending vertically, and upper and lower lifting lugs respectively bent and formed at both ends of the connecting arms; the upper lifting lug is connected to the vehicle frame, and the lower lifting lug is connected to the guard plate body.

[0013] Furthermore, the side portion of the hoisting bracket is bent to form a second flange, the second flange extending from the side of the connecting arm to the side of the upper lifting lug and the lower lifting lug; and / or, the connecting arm is formed with reinforcing ribs, the reinforcing ribs being arranged along the length direction of the connecting arm.

[0014] Furthermore, the hoisting bracket includes a first hanger connected between the longitudinal beam and the side edge of the guard plate body, and a second hanger connected between the front crossbeam and the front edge of the guard plate body. The rear edge of the guard plate body is connected to the rear crossbeam by a plurality of mounting bolts.

[0015] Compared with related technologies, this application has the following advantages:

[0016] (1) The fuel tank protection structure of this application has a protective plate assembly installed below the fuel tank. The protective plate body is suspended on the vehicle frame and a buffer space is reserved between it and the bottom of the fuel tank. When a stone protruding or flying on the ground collides with the protective plate body, the impact force will be transmitted to the vehicle frame first. Even if the protective plate body is deformed by the impact, the buffer space between the protective plate body and the fuel tank can effectively buffer and absorb energy, reduce the impact force on the fuel tank, and help improve the protection effect of the fuel tank.

[0017] (2) Multiple protrusions are set on the body of the guard plate, and soft pads are pasted on each protrusion. The concave and convex structure formed by the body of the guard plate can effectively enhance the structural strength of the body of the guard plate, so as to improve the protective performance of the guard plate assembly. Moreover, since soft pads are set on the protrusions, the soft pads can play a certain role in padding and buffering. At the same time, the buffer space between the area outside the protrusions on the body of the guard plate and the bottom of the fuel tank will be larger, which can reduce the impact and influence of the body of the guard plate on the fuel tank when the vehicle bottoms out, which is conducive to improving the protective performance of the guard plate assembly.

[0018] (3) Two types of bosses, namely edge bosses and middle bosses, are distributed on the body of the guard plate, which can effectively enhance the structural strength of the middle and edge areas of the body of the guard plate. A cavity is formed in the area outside the bosses, and a transition rib is formed between the cavity and the bosses. The presence of the transition rib can further improve the structural stability of the body of the guard plate in the height direction, thereby improving the service durability of the guard plate assembly.

[0019] (4) By setting a flange structure at the edge of the protective plate body, the structural strength at the edge of the protective plate body can be effectively improved, and the bottom edge of the fuel tank can be well protected, thus achieving a more comprehensive protection for the fuel tank.

[0020] (5) Based on the arrangement of the longitudinal beams and front crossbeams of the frame, the fuel tank is fixed between the longitudinal beams and the front crossbeams by the fuel tank straps, which can ensure the firmness of the fuel tank installation on the frame. The skid plate assembly, through its contact with the fuel tank straps, not only improves the stability of the skid plate assembly under the fuel tank, but also forms a buffer space between the fuel tank and the skid plate assembly, which is defined by the thickness of the fuel tank straps. This ensures that the buffer space has a certain height dimension and that the buffer space can play a good buffering role when the skid plate assembly is subjected to impact from below.

[0021] (6) The skid plate assembly is hoisted onto the vehicle frame by multiple hoisting brackets, so that the entire load of the skid plate assembly is located on the vehicle frame. The impact force on the skid plate assembly is also directly transmitted to the vehicle frame. This not only effectively reduces the burden on the fuel tank, but also minimizes the direct impact of external impacts on the fuel tank. As impacts such as stone splashes and vehicle bottoming out will be mainly borne by the skid plate assembly and the vehicle frame, the safety and protection of the fuel tank are further improved.

[0022] (7) Upper and lower lifting lugs are provided at the top and bottom of the lifting bracket, respectively, which provides good conditions for the connection between the top of the lifting bracket and the vehicle frame, and the connection between the bottom of the lifting bracket and the guard plate body.

[0023] (8) Setting a flange structure on the side of the hoisting support can effectively improve the overall structural strength of the hoisting support, thereby enhancing the performance of the hoisting support in transmitting the impact force from the guard plate assembly. Setting a reinforcing rib on the connecting arm is beneficial to further improve the structural stability of the connecting arm.

[0024] (9) The reasonable arrangement of the positions of the first and second hangers provides a good foundation for the hoisting and support of the side and front of the guard plate body. The rear end of the guard plate body is fixed to the rear crossbeam by multiple mounting bolts, which ensures the installation reliability of the rear of the guard plate assembly. The coordinated setting of the hoisting bracket and mounting bolts ensures the installation stability of the guard plate assembly on the vehicle frame, providing a reliable guarantee for the protective function of the guard plate assembly.

[0025] Another object of this application is to provide a vehicle that employs the fuel tank protection structure described in this application. The vehicle of this application possesses the technical advantages of the aforementioned fuel tank protection structure. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of the fuel tank protection structure described in the embodiments of this application;

[0028] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure at position AA in the middle;

[0029] Figure 3 for Figure 1 The diagram shows a disassembled structure of the fuel tank protection structure.

[0030] Figure 4 for Figure 3 A schematic diagram of the split structure from another perspective;

[0031] Figure 5 for Figure 4 The diagram shows the structural schematic of the guard plate assembly and the lifting bracket.

[0032] Figure 6 for Figure 5 The diagram shows the disassembled structure of the guard plate assembly and the lifting bracket;

[0033] Figure 7 This is a schematic diagram of the structure of the second hanger described in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Frame; 10. Longitudinal beams; 11. Front crossbeam; 12. Rear crossbeam;

[0036] 2. Fuel tank; 20. Fuel pipeline;

[0037] 3. Fuel tank straps;

[0038] 4. Guard plate assembly; 40. Guard plate body; 400. Boss; 4000. Central boss; 4001. Edge boss; 401. Transition rib; 402. Connecting platform; 403. First mounting hole; 404. First flange; 405. Weight reduction hole; 406. Cavity; 41. Soft gasket;

[0039] 5. Lifting bracket; 500. Connecting arm; 501. Upper lifting lug; 502. Lower lifting lug; 503. Second flange; 504. Reinforcing rib; 505. Second mounting hole; 506. Third mounting hole; 51. First hanger; 52. Second hanger;

[0040] 6. Mounting bolts; 7. Buffer space. Detailed Implementation

[0041] To make the technical solution and advantages of 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 not intended to limit the scope of this application.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0043] Furthermore, it should be stated in the description of this application that if terms indicating orientation or positional relationship, such as "up," "down," "left," "right," "front," "rear," "inner," and "outer," appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the vehicle described in this application as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the vehicle's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction). Specifically, as shown in the accompanying drawings, the X direction is the vehicle's front-back direction, where the side pointed by the arrow is "front," and the opposite is "rear." The Y direction is the vehicle's horizontal direction, where the side pointed by the arrow is "left," and the opposite is "right." The Z direction is the vehicle's vertical direction, where the side pointed by the arrow is "up," and the opposite is "down." "," "Inner" and "outer" are defined based on the outline of the corresponding component. For example, "inner" and "outer" are defined based on the outline of the vehicle. The side of the vehicle outline closer to the middle of the vehicle is "inner", and the other side is "outer".

[0044] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joint," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances. The qualifying terms such as "first," "second," "A," "B," "C," and "D" appearing in the description of this application are merely for distinguishing similar features in different locations, attributions, or uses, in order to avoid ambiguity and confusion, and should not be construed as indicating or implying relative importance.

[0045] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] In traditional fuel tank mounting structures, the fuel tank is typically secured to the vehicle's underframe using fuel tank straps, with a protective plate installed at the bottom of the fuel tank. This protective plate is mounted on the side of the fuel tank and secured by the fuel tank straps. However, in this protective structure, the protective plate is in direct contact with the fuel tank body. Upon impact, the impact force is rapidly transferred between the two, resulting in a lack of cushioning. Furthermore, the protective plate itself has relatively weak structural strength, leading to poor protection for the fuel tank and low durability.

[0047] In view of the above-mentioned problems in the related technologies, this application innovatively proposes a brand-new fuel tank protection structure that can improve the protection effect of the fuel tank.

[0048] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0049] An embodiment of the first aspect of this application provides a fuel tank protection structure, which can be applied to the protection of fuel tanks at the bottom of vehicles; an exemplary structure is as follows: Figure 1 , Figure 2 and Figure 3 As shown.

[0050] Overall, the fuel tank protection structure includes a fuel tank 2 mounted on a frame 1 at the bottom of the vehicle, and a skid plate assembly 4 suspended from the frame 1. The skid plate assembly 4 includes a skid plate body 40 that covers the bottom of the fuel tank 2, and a buffer space 7 is provided between the skid plate body 40 and the bottom of the fuel tank 2.

[0051] Based on the overall design concept described above, by setting a protective plate assembly 4 below the fuel tank 2, and suspending the protective plate body 40 on the frame 1, and leaving a buffer space 7 between the protective plate body 40 and the bottom of the fuel tank 2, when a protruding or flying stone on the ground collides with the protective plate body 40, the impact force will first be transmitted to the frame 1. Even if the protective plate body 40 is deformed by the impact, the buffer space 7 between the protective plate body 40 and the fuel tank 2 can effectively buffer and absorb energy, reduce the impact force on the fuel tank 2, and help improve the protection effect of the fuel tank 2.

[0052] It should be noted that, based on the above-mentioned overall design concept, the technical solution of this application can adopt a variety of different specific implementation structures, forms, or configuration sequences. For example, the above-mentioned skid plate assembly 4 can be hoisted onto the vehicle frame 1 using different structural components such as brackets, hangers, and bolts. The hoisting position on the vehicle frame 1 can also be flexibly selected according to the specific structural form of the vehicle frame 1. The specific arrangement sequence and assembly method of the fuel tank 2, fuel tank strap 3, skid plate body 40, and related hoisting structural components can also be flexibly adjusted. For parts required for the implementation of the overall solution but not covered in the above-mentioned overall setup, reasonable and flexible designs can be made by referring to mature setup methods in the field and the actual situation during implementation, which will not be elaborated here. The specific implementation scheme described below in this embodiment is only one of the many solutions that can be formed by the above-mentioned combinations and variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many solutions that can be formed by the above-mentioned combinations and variations, as well as the specific implementation scheme of this embodiment, are all within the protection scope of this application.

[0053] For the specific design of the protective plate body 40, there are naturally many different structural options available; for example, a flat plate structure can be used for the protective plate body 40, or the structural strength of the protective plate body 40 can be improved by providing an uneven structure on the protective plate body 40. In this embodiment, such as Figure 4 , Figure 5 As shown, in some preferred exemplary embodiments, the guard plate body 40 is formed with a plurality of protrusions 400 protruding toward the fuel tank 2, and the side of the guard plate body 40 facing the fuel tank 2 is provided with a plurality of soft pads 41; the aforementioned soft pads 41 can be provided in a plurality corresponding to the number of protrusions 400, and each soft pad 41 is attached to each protrusion 400 accordingly.

[0054] Multiple protrusions 400 are provided on the protective plate body 40, and soft pads 41 are respectively attached to each protrusion 400. The concave-convex structure formed by the protective plate body 40 itself can effectively enhance the structural strength of the protective plate body 40, thereby improving the protective performance of the protective plate assembly 4. At the same time, the soft pads can play a certain role in padding and cushioning. Moreover, since the soft pads 41 are set on the protrusions 400, the buffer space 7 between the area outside the protrusions 400 on the protective plate body 40 and the bottom of the fuel tank 2 will be larger. When the vehicle bottoms out, the area outside the protrusions 400 will contact the ground first, and the larger buffer space 7 can accommodate the deformation of the protective plate body 40 when bottoming out, thereby reducing the impact and influence of the protective plate body 40 on the fuel tank 2 when the vehicle bottoms out, which is conducive to improving the protective performance of the protective plate assembly 4.

[0055] Of course, the aforementioned boss 400 can be welded and fixed to the protective plate body 40 in the form of a plate, or a flat plate can be used to integrally process the protective plate body 40 through a stamping process. During stamping, the boss 400 and the first flange 404 described below are stamped and formed on the protective plate body 40.

[0056] Continue as Figure 6 As shown, in some preferred exemplary embodiments, the boss 400 of this embodiment includes a central boss 4000 located in the middle of the guard plate body 40, and a plurality of side bosses 4001 arranged on the edges of the guard plate body 40; a recess 406 is formed between the central boss 4000 and the side bosses 4001, which is recessed relative to the boss 400. Preferably, the side bosses 4001 located on the edges of the guard plate body 40 can be connected together to form an integral annular structure, and the transition ribs 401 on the inner side of each side boss 4001 are also connected together, which can enhance the overall structural strength of the guard plate body 40.

[0057] Two types of bosses 400, namely edge bosses 4001 and central bosses 4000, are distributed on the body of the protective plate 40, which can effectively enhance the structural strength of the central and edge areas of the body of the protective plate 40. A cavity 406 is formed in the area outside the bosses 400, and a transition rib 401 is formed between the cavity 406 and the bosses 400. The presence of the transition rib 401 can further improve the structural stability of the body of the protective plate 40 in the height direction, thereby improving the service durability of the protective plate assembly 4.

[0058] Additionally, a weight-reduction hole 405 can be made at the bottom of the cavity 406. Setting a weight-reduction hole 405 at the bottom of the cavity 406 helps to reduce the weight of the guard plate assembly 4 and saves the material required to manufacture the guard plate body 40.

[0059] Still as Figure 6 As shown, in some preferred exemplary embodiments, the edge of the guard plate body 40 of this embodiment is formed with a first flange 404. The first flange 404 bends towards the upper side of the guard plate body 40 and forms protection for the bottom edge of the fuel tank 2. By providing a flange structure at the edge of the guard plate body 40, the structural strength at the edge of the guard plate body 40 can be effectively improved, and the bottom edge of the fuel tank 2 can be well protected, thereby achieving a more comprehensive protection for the fuel tank 2.

[0060] For the specific configuration of the frame 1, there are naturally many different structural options available. In this embodiment, such as... Figure 3 , Figure 4As shown, the frame 1 includes longitudinal beams 10 arranged on the left and right sides of the vehicle bottom, and a front crossbeam 11 and a rear crossbeam 12 spaced apart between the two longitudinal beams 10. The fuel tank 2 is located between the front crossbeam 11 and the rear crossbeam 12 and is secured to the front crossbeam 11 and the rear crossbeam 12 by fuel tank straps 3. Two fuel tank straps 3 can be provided and evenly distributed in the left-right direction of the vehicle. The two ends of each fuel tank strap 3 are connected and fixed to the front crossbeam 11 and the rear crossbeam 12, respectively, and the fuel tank straps 3 firmly bind the fuel tank 2 to the frame 1. The fuel line 20 leading from the fuel tank 2 can be arranged from below the front crossbeam 11 towards the front of the vehicle. In the above configuration, the guard plate assembly 4 of this embodiment abuts against the fuel tank straps 3 at the bottom of the fuel tank 2, and due to the thickness of the fuel tank straps 3, a buffer space 7 is formed on both sides of the fuel tank straps 3.

[0061] Based on the arrangement of the longitudinal beams 10 and the front crossbeams 11 of the frame 1, the fuel tank 2 is secured between the longitudinal beams 10 and the front crossbeams 11 by the fuel tank straps 3, which ensures the firmness of the fuel tank 2 on the frame 1. Due to the presence of the fuel tank straps 3, when the skid plate assembly 4 is located below the fuel tank 2, the skid plate assembly 4, through its contact with the fuel tank straps 3, not only improves the stability of the skid plate assembly 4 located below the fuel tank 2, but also, due to the barrier effect of the fuel tank straps 3 between the fuel tank 2 and the skid plate assembly 4, a buffer space 7 defined by the thickness of the fuel tank straps 3 can be formed between the fuel tank 2 and the skid plate assembly 4. This ensures that the buffer space 7 has a certain height dimension and allows the buffer space 7 to play a good buffering role when the skid plate assembly 4 is subjected to impact from below.

[0062] As mentioned above, there are various structural options available for the mounting of the skid plate assembly 4 on the frame 1. For example, multiple lifting rods can be evenly arranged on the frame 1, with the bottom end of the lifting rods fixed to the skid plate body 40, thus achieving the mounting of the skid plate assembly 4 on the frame 1. Alternatively, multiple long bolts can be used as lifting components, with one end of the bolt fastened to the frame 1 by a nut and the other end fastened to the skid plate body 40, thus achieving the mounting of the skid plate assembly 4 on the frame 1.

[0063] In this embodiment, as Figure 4 , Figure 5 and Figure 6 As shown, in some preferred exemplary embodiments, the skid plate assembly 4 is suspended on the vehicle frame 1 by a plurality of lifting brackets 5, the top of the lifting brackets 5 being connected to the vehicle frame 1 and the bottom of the lifting brackets 5 being connected to the edge of the skid plate body 40.

[0064] The skid plate assembly 4 is hoisted onto the vehicle frame 1 using multiple lifting brackets 5, so that the entire load of the skid plate assembly 4 is located on the vehicle frame 1. The impact force on the skid plate assembly 4 is also directly transferred to the vehicle frame 1. This not only effectively reduces the burden on the fuel tank 2, but also minimizes the direct impact of external impacts on the fuel tank 2. Impacts such as stone splashes and vehicle bottoming out will be mainly borne by the skid plate assembly 4 and the vehicle frame 1, further improving the safety and protection of the fuel tank 2.

[0065] Specifically, such as Figure 6 and Figure 7 As shown, in some preferred exemplary embodiments, the skid plate assembly 4 of this embodiment is equipped with a first hanger 51 and two sets of lifting brackets 5. The first hanger 51 is located on the side of the skid plate body 40, connecting the longitudinal beam 10 of the frame 1 and the skid plate body 40; the second hanger 52 is located at the front end of the skid plate body 40, connecting the front crossbeam 11 and the skid plate body 40. The two sets of lifting brackets 5 can adopt the same or similar structural forms. Figure 7 Taking the second hanger 52 shown as an example, the lifting bracket 5 in this embodiment includes a connecting arm 500 extending vertically, and an upper lifting lug 501 and a lower lifting lug 502 respectively bent and formed at both ends of the connecting arm 500; the upper lifting lug 501 is connected to the vehicle frame 1, and the lower lifting lug 502 is connected to the guard plate body 40. The upper lifting lug 501 and the lower lifting lug 502 are respectively provided at the top and bottom of the lifting bracket 5, which provides good conditions for the connection between the top of the lifting bracket 5 and the vehicle frame 1, and the connection between the bottom of the lifting bracket 5 and the guard plate body 40.

[0066] Furthermore, in this embodiment, the side portion of the lifting bracket 5 is bent to form a second flange 503, which extends from the side of the connecting arm 500 to the side of the upper lifting lug 501 and the lower lifting lug 502. The flange structure on the side of the lifting bracket 5 can effectively improve the overall structural strength of the lifting bracket 5, thereby enhancing the performance of the lifting bracket 5 in transmitting the impact force from the guard plate assembly 4.

[0067] Preferably, a raised reinforcing rib 504 can also be formed on the connecting arm 500, and the reinforcing rib 504 is arranged along the length direction of the connecting arm 500. Providing a reinforcing rib 504 on the connecting arm 500 helps to further improve the structural stability of the connecting arm 500.

[0068] Besides using the lifting bracket 5 to lift the guard plate assembly 4, the rear end of the guard plate body 40 can also be directly fixed to the rear crossbeam 12 using lifting rods, bolts, etc. In this embodiment, as shown... Figure 6As shown, in addition to the first hanger 51 connecting the longitudinal beam 10 and the side edge of the guard plate body 40, and the second hanger 52 connecting the front crossbeam 11 and the front edge of the guard plate body 40, multiple upwardly protruding connecting platforms 402 are provided at the rear edge of the guard plate body 40. Each connecting platform 402 has a first mounting hole 403, and a mounting bolt 6 is inserted into the first mounting hole 403. The rear end of the guard plate body 40 is connected to the rear crossbeam 12 through multiple mounting bolts 6. Given the arrangement of the side bosses 4001, a connecting platform 402 can be provided on each side boss 4001 at the rear end of the guard plate body 40, and a mounting bolt 6 can be inserted into each connecting platform 402. The mounting bolts 6 can be fixed to the rear crossbeam 12 by means of a hanger or by direct screwing.

[0069] The reasonable arrangement of the positions of the first hanger 51 and the second hanger 52 provides a good foundation for the hoisting and support of the side and front of the guard plate body 40. The rear end of the guard plate body 40 is connected and fixed to the rear crossbeam 12 by multiple mounting bolts 6, which ensures the installation reliability of the rear of the guard plate assembly 4. The coordinated arrangement of the hoisting bracket 5 and the mounting bolts 6 ensures the installation stability of the guard plate assembly 4 on the frame 1, and provides a reliable guarantee for the protective function of the guard plate assembly 4.

[0070] In addition, such as Figure 6 As shown, based on the configuration of the upper lifting lug 501 and lower lifting lug 502 on the lifting bracket 5, a second mounting hole 505 can be opened on the upper lifting lug 501 so that the upper lifting lug 501 can be bolted and fixed to the frame 1; the lower lifting lug 502 can be directly welded to the guard plate body 40, or a third mounting hole 506 can be opened on the lower lifting lug 502 to improve the connection between the lower lifting lug 502 and the guard plate body 40 using bolts, rivets, etc.

[0071] In summary, the fuel tank protection structure of this embodiment features a protective plate assembly 4 located below the fuel tank 2. The protective plate body 40 is suspended from the vehicle frame 1, with a buffer space 7 reserved between it and the bottom of the fuel tank 2. A soft pad 41 is placed between the protective plate body 40 and the fuel tank 2. When a protruding or flying stone from the ground collides with the protective plate body 40, the impact force is first transmitted to the vehicle frame 1. Even if the protective plate body 40 deforms due to the impact, the buffer space 7 between the protective plate body 40 and the fuel tank 2, along with the soft pad 41, can effectively buffer and absorb energy, reducing the impact force on the fuel tank 2 and improving the protection effect of the fuel tank 2.

[0072] An embodiment of the second aspect of this application provides a vehicle that employs the fuel tank protection structure provided in Embodiment 1.

[0073] For vehicles equipped with a fuel tank 2, by adopting the fuel tank protection structure of this application, the fuel tank 2 can be protected by the protective plate assembly 4 suspended below the fuel tank 2. This can effectively improve the problem that the protective plate in the traditional structure is not very effective in protecting the fuel tank 2 and the protective plate itself has a low level of durability.

[0074] The vehicle in this embodiment can have either a body-on-frame or a monocoque body; considering ease of mounting the skid plate assembly 4, it is particularly suitable for models with a body-on-frame body. Of course, for models with a monocoque body, the skid plate assembly 4 can be mounted on the frame 1, which includes the vehicle's floor assembly, sill beams, etc. For models with a body-on-frame body, the following can be referred to... Figures 1 to 7 The protective plate assembly 4 is installed by means of a hoisting bracket 5, mounting bolts 6, etc., onto the longitudinal beams 10, front crossbeams 11, rear crossbeams 12, etc. of the frame 1.

[0075] When the fuel tank protection structure of this application is adopted, the protective plate assembly 4 abandons the form of directly installing it onto the body of the fuel tank 2, and instead sets it onto the frame 1 by means of hoisting. A buffer space 7 is left between the protective plate body 40 and the fuel tank 2, so that they do not directly contact each other. At the same time, a soft pad 41 is added between the protective plate body 40 and the fuel tank 2 to play a buffering role, which can greatly improve the protective effect of the protective plate assembly 4.

[0076] Meanwhile, considering the hoisting requirements and space constraints of the protective plate assembly 4, a hoisting bracket 5 was specifically designed for its hoisting. By incorporating upper lifting lugs 501, lower lifting lugs 502, a second flange 503, and reinforcing ribs 504 into the hoisting bracket 5, the installation and fixing requirements of the hoisting bracket 5 are effectively met, and the structural stability of the hoisting bracket 5 is significantly enhanced. Furthermore, the second flange 503 on the side of the hoisting bracket 5 features an optimized design. Instead of a simple one-sided bending flange, the edge plate is bent twice in the opposite direction. This involves bending the flange twice, forming a flange structure similar to a reinforcing rib. This avoids material accumulation wrinkles and stress concentration at the bending points, ensuring the structural stability and durability of the hoisting bracket 5.

[0077] The protective plate body 40 is equipped with a large number of bosses 400, cavities 406 and transition ribs 401 formed between the bosses 400 and cavities 406, which increases the overall structural strength of the protective plate body 40 and provides good positional conditions for the soft gasket 41 to be installed on the protective plate body 40. The overall stability and durability of the protective plate body 40 are greatly improved.

[0078] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A fuel tank protection structure, characterized in that: Includes a fuel tank (2) located on a frame (1) at the bottom of the vehicle, and a skid plate assembly (4) suspended on the frame (1). The guard assembly (4) includes a guard body (40) that forms a cover over the bottom of the fuel tank (2), and a buffer space (7) is provided between the guard body (40) and the bottom of the fuel tank (2).

2. The fuel tank protection structure according to claim 1, characterized in that: The protective plate body (40) has a plurality of protrusions (400) protruding toward the fuel tank (2), and the protrusions (400) are provided with soft pads (41).

3. The fuel tank protection structure according to claim 2, characterized in that: The boss (400) includes a central boss (4000) located in the middle of the guard plate body (40) and a plurality of side bosses (4001) arranged on the side of the guard plate body (40); a recess (406) is formed between the central boss (4000) and the side bosses (4001) and is recessed relative to the boss (400), and a weight reduction hole (405) is provided at the bottom of the recess (406).

4. The fuel tank protection structure according to claim 1, characterized in that: The edge of the guard plate body (40) is formed with a first flange (404), which bends toward the upper side of the guard plate body (40) and forms protection for the bottom edge of the fuel tank (2).

5. The fuel tank protection structure according to any one of claims 1 to 4, characterized in that: The frame (1) includes longitudinal beams (10) arranged on the left and right sides of the bottom of the vehicle, and a front crossbeam (11) and a rear crossbeam (12) arranged at intervals between the two longitudinal beams (10); the fuel tank (2) is located between the front crossbeam (11) and the rear crossbeam (12), and is tied to the front crossbeam (11) and the rear crossbeam (12) by fuel tank straps (3); the guard plate assembly (4) abuts against the fuel tank straps (3) at the bottom of the fuel tank (2), forming the buffer space (7) on both sides of the fuel tank straps (3).

6. The fuel tank protection structure according to claim 5, characterized in that: The guard plate assembly (4) is suspended on the vehicle frame (1) by multiple lifting brackets (5). The top of the lifting bracket (5) is connected to the vehicle frame (1), and the bottom of the lifting bracket (5) is connected to the edge of the guard plate body (40).

7. The fuel tank protection structure according to claim 6, characterized in that: The lifting bracket (5) includes a connecting arm (500) extending vertically, and an upper lifting lug (501) and a lower lifting lug (502) respectively bent and formed at both ends of the connecting arm (500); the upper lifting lug (501) is connected to the vehicle frame (1), and the lower lifting lug (502) is connected to the guard plate body (40).

8. The fuel tank protection structure according to claim 7, characterized in that: The side of the hoisting bracket (5) is bent to form a second flange (503), which extends from the side of the connecting arm (500) to the side of the upper lifting lug (501) and the lower lifting lug (502); and / or, the connecting arm (500) is formed with a reinforcing rib (504), which is arranged along the length of the connecting arm (500).

9. The fuel tank protection structure according to claim 6, characterized in that: The hoisting bracket (5) includes a first hanger (51) connected between the longitudinal beam (10) and the side edge of the guard plate body (40), and a second hanger (52) connected between the front crossbeam (11) and the front edge of the guard plate body (40). The rear edge of the guard plate body (40) is connected to the rear crossbeam (12) by a plurality of mounting bolts (6).

10. A vehicle, characterized in that: The vehicle adopts the fuel tank protection structure as described in any one of claims 1 to 9.

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