Light automobile front longitudinal beam wheel cover structure

Abstract

The invention provides a lightweight automobile front longitudinal beam wheel cover structure, which belongs to the technical field of automobile front longitudinal beam wheel covers, and comprises an anti-collision beam, the top of the anti-collision beam is fixedly connected with a first shaft bracket, the end part of the anti-collision beam is fixedly connected with an energy absorption box, the side wall of the energy absorption box is fixedly connected with a front longitudinal beam, and the bottom of a mounting plate is fixedly connected with a wheel cover. The side wall of the wheel cover is fixedly connected with a wheel arch through a plurality of pin bodies, wheels and a protective curtain are arranged on the inner side of the wheel arch, the protective curtain assembly is arranged below the wheel arch, and the protective curtain assembly is used for protecting a vehicle chassis and the interior of a vehicle body; the transmission assembly is arranged on one side of the anti-collision beam, and the transmission assembly is used for controlling the protection range of the protection curtain; the shield assembly is arranged on the inner side of the wheel arch, and the shield assembly is used for reducing noise of the vehicle and protecting the wheel arch; and the alarm assembly is arranged on the inner side of the wheel cover, and the alarm assembly is used for alarming and reminding the impact degree of external force on the protective cover assembly.

Description

Technical Field

[0001] The invention relates to the technical field of automobile front longitudinal beam wheel cover, in particular to a lightweight automobile front longitudinal beam wheel cover structure. Background Art

[0002] The front longitudinal beam is an important part of the chassis structure of the car. It usually extends from the front anti-collision beam to the mounting point of the front suspension. Its main function is to support and protect the engine and its related components. In vehicle design, the front longitudinal beam not only provides a solid structural support, but also integrates a part of the wheel cover liner. The design of this wheel cover part helps to guide the dispersion of impact energy, thereby reducing the direct impact on the car body. In addition, the wheel cover area of ​​the front longitudinal beam is also responsible for shielding the wheels to prevent stones or other foreign objects flying during driving from damaging the car body or passengers. It also helps to improve the aerodynamic performance of the vehicle, reduce wind resistance, and make the vehicle run more smoothly and efficiently. Therefore, the front longitudinal beam and its wheel cover part are crucial to improving the safety, durability and driving experience of the car.

[0003] Due to the complex and changeable road conditions during vehicle driving, there are hidden factors on the road surface that may cause damage to the vehicle. Especially during driving, the wheels are often prone to rolling up stones or other foreign objects. Once these high-speed flying objects hit the wheel arch lining, they may cause damage to it. The wheel arch lining is hidden and not easy to find. If the lining is damaged due to frequent impacts, then these stones or other hard objects will further damage the wheel arch, destroy the original protective layer, and make this part more prone to rust and corrosion. Especially when driving at high speeds, the faster the speed, the greater the kinetic energy of the foreign objects carried, and thus the greater the impact force of these foreign objects on the vehicle. Although the existing lining designs are intended to provide certain protection for the vehicle to reduce such damage, due to design limitations, they are often unable to prevent the chassis from being damaged in many ways. Especially when driving at high speeds or encountering relatively severe road conditions, this risk is more significant.

[0004] How to invent a lightweight automobile front longitudinal beam wheel cover structure to improve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a lightweight automobile front longitudinal beam wheel cover structure, which aims to solve the problem that damage to the lining cannot be discovered in time during vehicle driving and has limited chassis protection.

[0006] The present invention is achieved in that:

[0007] The present invention provides a lightweight automobile front longitudinal beam wheel cover structure, comprising an anti-collision beam, the top of the anti-collision beam is fixedly connected to a first axle bracket, the end of the anti-collision beam is fixedly connected to an energy absorption box, the side wall of the energy absorption box is fixedly connected to the front longitudinal beam, the side wall of the front longitudinal beam is fixedly provided with a mounting plate and a plurality of second axle brackets, the bottom of the mounting plate is fixedly connected to a wheel cover, the side wall of the wheel cover is fixedly connected to a wheel arch through a plurality of pins, the inner side of the wheel arch is provided with a wheel and a protective curtain, and also comprises: a protective curtain assembly, the protective curtain assembly is arranged below the wheel arch, the protective curtain assembly is used for protecting the chassis and the interior of the vehicle body; a transmission assembly, the transmission assembly is arranged on one side of the anti-collision beam, the transmission assembly is used for controlling the protection range of the protective curtain; a shield assembly, the shield assembly is arranged on the inner side of the wheel arch, the shield assembly is used for noise reduction of the vehicle and protection of the wheel arch; an alarm assembly, the alarm assembly is arranged on the inner side of the wheel arch, the alarm assembly is used for alarming the impact degree of the external force on the shield assembly.

[0008] Preferably, the front longitudinal beam and the mounting plate are integrated, and the front longitudinal beam is arranged in a cap-shaped structure.

[0009] Preferably, the transmission assembly includes a driving shaft rotatably connected to the first shaft bracket, the outer wall fixed sleeve of the driving shaft is provided with a fan blade, multiple second shaft brackets are rotatably connected to the transmission shaft, the inner wall of the wheel arch is rotatably connected to the driven shaft, and the outer wall fixed sleeve of the driven shaft is provided with multiple small gears.

[0010] Preferably, the driving shaft and the transmission shaft, and the transmission shaft and the driven shaft are each connected in transmission via a first transmission belt and a second transmission belt.

[0011] Preferably, the protective curtain assembly includes a plurality of suspension frames fixedly connected to the inner wall of the wheel arch, a protective curtain is fixedly connected to the bottom of the plurality of suspension frames, a group of symmetrical lining curtains is fixedly connected to the protective curtain, a plurality of long sliding sleeves, a plurality of sliding frames, and a plurality of short sliding sleeves are fixedly connected to the inner wall of the wheel arch, a plurality of inner pivots, a plurality of outer pivots, and a plurality of sliding pins are fixedly connected to the side walls of the protective curtain, a sliding rod is fixedly connected to the top of the inner pivot, and a stabilizing sleeve and a tension spring are fixedly connected to the top of the outer pivot.

[0012] Preferably, the protective curtain is folded, the lining curtain is flexibly arranged, the long sliding sleeve, the short sliding sleeve and the stabilizing sleeve are all arranged in a long cylindrical shape, the sliding rod is inside the long sliding sleeve and is slidably connected, the side wall of the sliding rod is provided with a rack, the pinion penetrates the long sliding sleeve and is meshed with the rack on the sliding rod, the slide is U-shaped, the sliding pin is slidably connected to the slide, and the top of the tension spring is fixedly connected to the inner wall of the wheel arch.

[0013] Preferably, the shield assembly includes a sound insulation cotton layer fixedly connected to the inner wall of the wheel arch, the inner wall of the wheel arch is fixedly connected to a plurality of compression springs, and the ends of the plurality of compression springs are fixedly connected to an inner lining.

[0014] Preferably, the alarm assembly includes a shell slidably connected to the side wall of the wheel arch, a guide plate is fixedly connected to the inner side of the bottom of the shell, an insulating plate is slidably connected to the inner wall of the shell, two guide rods are fixedly connected to the side wall of the insulating plate, a stabilizing spring is fixedly connected to the inner side of the wheel arch, a push spring is fixedly connected to the side wall of the insulating plate, and the push spring is fixedly connected to the guide plate.

[0015] Preferably, the stabilizing spring is fixedly connected to the side wall of the insulating plate, and the two guide rods are arranged in a non-contact manner with the guide plates.

[0016] Preferably, the two guide rods are connected in a circuit of a light emitting diode, and the light emitting diode is located in the vehicle driving compartment.

[0017] The beneficial effects of the present invention are as follows: when the vehicle is traveling at high speed, the pinion on the transmission assembly exerts a stronger force on the slide bar, so that the protective curtain is unfolded to the maximum extent. At this time, the protective curtain maximizes the range of protection for the vehicle, and can prevent foreign objects flying from more angles from impacting the chassis, providing a more comprehensive protection function for the vehicle chassis; When the vehicle is driving, if the inner side of the lining is impacted from the outside, such as by flying stones or other objects, the alarm component will be activated. When the impact force is large enough, the lining pushes the shell to drive the guide plate to contact the two guide rods, forming a closed circuit, thereby triggering the light-emitting diode to send out an alarm signal, reminding the driver to check the damage to the vehicle in time to prevent the problem of damage to the vehicle lining that cannot be discovered in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of a three-dimensional structure of a lightweight front longitudinal beam wheel cover structure of an automobile provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of a transmission assembly structure of a lightweight front longitudinal beam wheel cover structure of an automobile provided by an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a lightweight automobile front longitudinal beam wheel cover structure curtain assembly provided by an embodiment of the present invention; Figure 4 yes Figure 3 The enlarged view of point A in the middle; Figure 5 It is a schematic structural diagram of a lightweight automobile front longitudinal beam wheel cover structure shield assembly provided by an embodiment of the present invention; Figure 6 The present invention is a schematic diagram of the cross-sectional structure of a lightweight automobile front longitudinal beam wheel cover structure alarm component provided by an embodiment of the present invention.

[0020] In the figure: 1. anti-collision beam; 11. first axle bracket; 12. energy absorption box; 13. front longitudinal beam; 14. mounting plate; 15. wheel cover; 16. second axle bracket; 17. pin body; 18. wheel arch; 19. wheel; 21. first transmission belt; 2. drive shaft; 20. fan blade; 22. transmission shaft; 23. second transmission belt; 24. driven shaft; 25. pinion; 3. suspension frame; 31. protective curtain; 32. lining curtain; 33. long sliding sleeve; 34. inner fulcrum; 35. sliding rod; 36. sliding pin; 37. sliding frame; 38. short sliding sleeve; 39. outer fulcrum; 40. stabilizing sleeve; 41. tension spring; 42. rack; 51. sound insulation cotton layer; 52. compression spring; 5. lining; 53. shell; 54. guide plate; 55. insulation plate; 56. stabilizing spring; 57. push spring; 58. guide rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1, refer to Figure 1-Figure 4, including an anti-collision beam 1, the top of the anti-collision beam 1 is fixedly connected to a first axle bracket 11, the end of the anti-collision beam 1 is fixedly connected to an energy absorption box 12, the energy absorption box 12 is used to absorb the impact caused by a vehicle collision, the side wall of the energy absorption box 12 is fixedly connected to a front longitudinal beam 13, the front longitudinal beam 13 is used to stabilize the vehicle body, the side wall of the front longitudinal beam 13 is fixedly provided with a mounting plate 14 and a plurality of second axle brackets 16, the bottom of the mounting plate 14 is fixedly connected to a wheel cover 15, the side wall of the wheel cover 15 is fixedly connected to a wheel arch 18 through a plurality of pins 17, the inner side of the wheel arch 18 is provided with a wheel 19 and a protective curtain 31, and also includes: a protective Curtain assembly, the curtain assembly is arranged below the wheel arch 18, and the curtain assembly is used to protect the chassis and the interior of the vehicle body; transmission assembly, the transmission assembly is arranged on one side of the anti-collision beam 1, and the transmission assembly is used to control the protection range of the protective curtain 31. The front longitudinal beam 13 and the mounting plate 14 are integrated, which enhances the stability between the two and improves the overall strength of the vehicle body. The front longitudinal beam 13 is arranged in a hat-shaped structure. The hat-shaped structure can reduce weight while ensuring strength, which is very important for improving the overall performance of the vehicle, and can also effectively disperse the impact force generated during a collision, thereby improving the safety of the passenger compartment; The transmission assembly includes a driving shaft 2 rotatably connected to a first shaft bracket 11, a fan blade 20 is fixedly sleeved on the outer wall of the driving shaft 2, a plurality of second shaft brackets 16 are rotatably connected to a transmission shaft 22, an inner wall of a wheel arch 18 is rotatably connected to a driven shaft 24, a plurality of pinions 25 are fixedly sleeved on the outer wall of the driven shaft 24, and the driving shaft 2 and the transmission shaft 22, as well as the transmission shaft 22 and the driven shaft 24, are respectively connected to each other through a first transmission belt 21 and a second transmission belt 23. The curtain guard assembly includes a plurality of suspension frames 3 fixedly connected to the inner wall of the wheel arch 18, a protective curtain 31 is fixedly connected to the bottom of the plurality of suspension frames 3, a group of symmetrical lining curtains 32 are fixedly connected to the protective curtain 31, a plurality of long sliding sleeves 33, a plurality of sliding frames 37, and a plurality of short sliding sleeves 38 are fixedly connected to the inner wall of the wheel arch 18, a plurality of inner pivots 34, a plurality of outer pivots 39, and a plurality of sliding pins 36 are fixedly connected to the side wall of the protective curtain 31, a sliding rod 35 is fixedly connected to the top of the inner pivot 34, a stabilizing sleeve 40 and a tension spring 41 are fixedly connected to the top of the outer pivot 39, the protective curtain 31 is arranged in a folded shape, the lining curtain 32 is arranged in a flexible shape, the long sliding sleeve 33, the short sliding sleeve The slide 38 and the stabilizing sleeve 40 are both arranged in a long cylindrical shape, the slide rod 35 is inside the long slide sleeve 33 and is slidably connected, the side wall of the slide rod 35 is arranged with a rack 42, the pinion 25 penetrates the long slide sleeve 33 and is meshed with the rack 42 on the slide rod 35, the slide frame 37 is arranged in a U-shape, the slide pin 36 is slidably connected with the slide frame 37, and the upper part of the protective curtain 31 is always kept stable and does not shake by sliding a plurality of slide pins 36 in a plurality of slide frames 37. When the protective curtain 31 is stretched, the position of the protective curtain 31 can also be ensured to move stably in the vertical direction without affecting the stretched state of the protective curtain 31, and the top of the tension spring 41 is fixedly connected to the inner wall of the wheel arch 18, It should be noted that when the vehicle is moving, since the fan blade 20 is located in front of the vehicle and directly contacts the airflow moving relative to the vehicle body, the airflow drives the fan blade 20 to rotate, drives the drive shaft 2 to rotate, drives the drive shaft 22 to rotate through the first transmission belt 21, drives the driven shaft 24 to rotate through the second transmission belt 23, and drives the multiple pinions 25 to rotate, providing driving force for the curtain assembly, and this driving force will be adjusted with the change of vehicle speed, thereby providing appropriate power for the curtain assembly. By arranging a group of symmetrical lining curtains 32 on the protective curtain 31, the axis of the driving wheel 19 is located between the group of lining curtains 32. The flexible arrangement of the lining curtains 32 can wrap the axis of the driving wheel 19 more tightly, increase the shielding area for foreign objects, reduce the occurrence of foreign objects passing over the lining curtains 32 and hitting the vehicle engine position, and do not affect the operation of the vehicle shock absorber, so that the axis of the driving wheel 19 is not disturbed when moving up and down in the lining curtains 32, and provide continuous protection at the same time; In this embodiment, the rack 42 is meshed with the pinion 25, and the pinion 25 rotates to exert a downward force on the slide bar 35. When the downward force overcomes the tension of the tension spring 41 on the outer fulcrum 39, the slide bar 35 moves downward, and the protective curtain 31 is pulled downward through the multiple inner fulcrums 34, thereby increasing the plane area of ​​the protective curtain 31 and expanding the protection range. The faster the vehicle speed, the greater the kinetic energy of the foreign objects carried by the wheel 19, and the stronger the impact force caused by these foreign objects on the vehicle. Therefore, protection is more needed when the vehicle speed is fast than when the vehicle speed is slow. When the vehicle is traveling at high speed, the pinion 25 on the transmission assembly exerts a stronger force on the slide bar 35, so that the protective curtain 31 is unfolded to the maximum extent. At this time, the protective curtain 31 has a wider range of protection for the vehicle, which can prevent foreign objects flying from more angles from impacting the chassis, providing a more comprehensive protection function for the vehicle chassis.

[0023] Example 2, refer to Figure 5-Figure 6The shield assembly is arranged on the inner side of the wheel arch 18. The shield assembly is used for reducing the noise of the vehicle and protecting the wheel arch 18. The shield assembly includes a sound insulation cotton layer 51 fixedly connected to the inner wall of the wheel arch 18. By setting the sound insulation cotton layer 51, the sound transmitted into the vehicle compartment by the friction between the tire and the road surface, wind noise and other external noises during the driving of the vehicle is reduced, thereby improving the comfort of the passengers in the vehicle. The inner wall of the wheel arch 18 is fixedly connected with a plurality of compression springs 52, and the ends of the plurality of compression springs 52 are fixedly connected with an inner lining 5. By setting the plurality of compression springs 52, the inner lining 5 and the wheel arch 18 are connected. 8 is elastically connected. When the splashing objects such as mud, water, and stones rolled up by the tire hit the surface of the inner liner 5 at a high speed during the driving process of the vehicle, the inner liner 5 will be subjected to an instantaneous impact force. At this time, the inner liner 5 absorbs part of the impact energy through its own deformation. At the same time, the inner liner 5 will squeeze the compression spring 52 pre-installed behind it inward. As an elastic element, the compression spring 52 will be compressed and deformed when squeezed, thereby further absorbing and buffering this part of the impact force, reducing the force directly transmitted to the vehicle body structure, and protecting the internal components of the vehicle from direct damage. In this way, through the cooperation of the inner liner 5 and the compression spring 52, the impact of external impact is effectively dispersed and alleviated, and the overall durability and safety of the vehicle are enhanced. An alarm component is arranged on the inner side of the wheel cover 15. The alarm component is used for alarming the impact degree of the external force on the guard cover component. The alarm component includes a shell 53 slidably connected to the side wall of the wheel arch 18. A guide piece 54 is fixedly connected to the inner side of the bottom of the shell 53. An insulating plate 55 is slidably connected to the inner side wall of the shell 53. Two guide rods 58 are fixedly connected to the side wall of the insulating plate 55. A stabilizing spring 56 is fixedly connected to the inner side of the wheel cover 15. A push spring 57 is fixedly connected to the side wall of the insulating plate 55. The push spring 57 is fixedly connected to the guide piece 54. The stabilizing spring 56 is fixedly connected to the side wall of the insulating plate 55. The two guide rods 58 are arranged non-contact with the guide piece 54. The two guide rods 58 are connected to the circuit of the light-emitting diode. The light-emitting diode is located in the vehicle cockpit. In this embodiment, when the vehicle is driving, if the inner side of the lining 5 is impacted from the outside, such as being hit by flying stones or other objects, the alarm component will be activated. When the impact occurs, the lining 5 squeezes the shell 53, and the shell 53 slides in the wheel arch 18 to squeeze the push spring 57, causing the distance between the two guide rods 58 and the guide plate 54 to change. Under normal circumstances, the two guide rods 58 and the guide plate 54 are in a non-contact state, and the circuit is disconnected; when the impact force is large enough, the lining 5 pushes the shell 53 to drive the guide plate 54 to contact the two guide rods 58, forming a closed circuit, thereby triggering the light-emitting diode to send an alarm signal, and the light-emitting diode is located in the vehicle cockpit so that the driver can see the alarm signal and promptly understand that the vehicle lining 5 has been subjected to a strong impact, reminding the driver to check the damage to the vehicle in time to prevent the damage to the vehicle lining 5 from not being discovered in time, resulting in greater damage to the vehicle later, and also reminding the driver that there are many foreign objects in the current road conditions and that he needs to slow down or avoid them.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightweight automobile front longitudinal beam wheel cover structure, comprising an anti-collision beam (1), characterized in that: The top of the anti-collision beam (1) is fixedly connected to a first axle bracket (11), the end of the anti-collision beam (1) is fixedly connected to an energy absorption box (12), the side wall of the energy absorption box (12) is fixedly connected to a front longitudinal beam (13), the side wall of the front longitudinal beam (13) is fixedly provided with a mounting plate (14) and a plurality of second axle brackets (16), the bottom of the mounting plate (14) is fixedly connected to a wheel cover (15), the side wall of the wheel cover (15) is fixedly connected to a wheel arch (18) via a plurality of pins (17), and a wheel (19) and a protective curtain (31) are provided inside the wheel arch (18), and further comprising: A protective curtain assembly, the protective curtain assembly being arranged below the wheel arch (18), and the protective curtain assembly being used for protecting the chassis and the interior of the vehicle body; A transmission assembly, the transmission assembly being arranged on one side of the anti-collision beam (1), and the transmission assembly being used to control the protection range of the protection curtain (31); A shield assembly, the shield assembly being arranged on the inner side of the wheel arch (18), the shield assembly being used for reducing noise of the vehicle and protecting the wheel arch (18); An alarm component is arranged on the inner side of the wheel cover (15), and is used to alarm and remind the degree of impact of external force on the guard cover component.

2. A lightweight automobile front longitudinal beam wheel cover structure according to claim 1, characterized in that: The front longitudinal beam (13) and the mounting plate (14) are arranged in an integrated manner, and the front longitudinal beam (13) is arranged in a hat-shaped structure.

3. The lightweight automobile front longitudinal beam wheel cover structure according to claim 1, characterized in that: The transmission assembly comprises a drive shaft (2) rotatably connected to a first shaft bracket (11), a fan blade (20) being fixedly sleeved on an outer side wall of the drive shaft (2), a plurality of drive shafts (22) being rotatably connected to the second shaft brackets (16), a driven shaft (24) being rotatably connected to the inner side wall of the wheel arch (18), and a plurality of pinion gears (25) being fixedly sleeved on an outer side wall of the driven shaft (24).

4. A lightweight automobile front longitudinal beam wheel cover structure according to claim 3, characterized in that: The driving shaft (2) and the transmission shaft (22), and the transmission shaft (22) and the driven shaft (24) are each connected in transmission via a first transmission belt (21) and a second transmission belt (23).

5. The lightweight automobile front longitudinal beam wheel cover structure according to claim 3, characterized in that: The protective curtain assembly comprises a plurality of suspension frames (3) fixedly connected to the inner wall of the wheel arch (18); a protective curtain (31) is fixedly connected to the bottom of the plurality of suspension frames (3); a group of symmetrical lining curtains (32) is fixedly connected to the protective curtain (31); a plurality of long sliding sleeves (33), a plurality of sliding frames (37), and a plurality of short sliding sleeves (38) are fixedly connected to the inner wall of the wheel arch (18); a plurality of inner supporting points (34), a plurality of outer supporting points (39), and a plurality of sliding pins (36) are fixedly connected to the side wall of the protective curtain (31); a sliding rod (35) is fixedly connected to the top of the inner supporting point (34); and a stabilizing sleeve (40) and a tension spring (41) are fixedly connected to the top of the outer supporting point (39).

6. A lightweight automobile front longitudinal beam wheel cover structure according to claim 5, characterized in that: The protective curtain (31) is folded, the lining curtain (32) is flexibly configured, the long sliding sleeve (33), the short sliding sleeve (38) and the stabilizing sleeve (40) are all arranged in a long cylindrical shape, the sliding rod (35) is inside the long sliding sleeve (33) and is slidably connected, a rack (42) is arranged on the side wall of the sliding rod (35), the pinion (25) penetrates the long sliding sleeve (33) and is meshed with the rack (42) on the sliding rod (35), the sliding frame (37) is U-shaped, the sliding pin (36) is slidably connected to the sliding frame (37), and the top of the tension spring (41) is fixedly connected to the inner wall of the wheel arch (18).

7. The lightweight automobile front longitudinal beam wheel cover structure according to claim 1, characterized in that: The shield assembly comprises a sound insulation cotton layer (51) fixedly connected to the inner wall of the wheel arch (18), a plurality of compression springs (52) are fixedly connected to the inner wall of the wheel arch (18), and the ends of the plurality of compression springs (52) are fixedly connected to the inner lining (5).

8. The lightweight automobile front longitudinal beam wheel cover structure according to claim 1, characterized in that: The alarm assembly comprises a shell (53) slidably connected to the side wall of the wheel arch (18); a guide plate (54) is fixedly connected to the inner side of the bottom of the shell (53); an insulating plate (55) is slidably connected to the inner side wall of the shell (53); two guide rods (58) are fixedly connected to the side wall of the insulating plate (55); a stabilizing spring (56) is fixedly connected to the inner side of the wheel cover (15); a push spring (57) is fixedly connected to the side wall of the insulating plate (55); and the push spring (57) is fixedly connected to the guide plate (54).

9. A lightweight automobile front longitudinal beam wheel cover structure according to claim 8, characterized in that: The stabilizing spring (56) is fixedly connected to the side wall of the insulating plate (55), and the two guide rods (58) are arranged in a non-contact manner with the guide plate (54).

10. The lightweight automobile front longitudinal beam wheel cover structure according to claim 8, characterized in that: The two guide rods (58) are connected in a circuit of a light emitting diode, and the light emitting diode is located in the vehicle driving compartment.

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