Rear bumper with a buffer structure

Abstract

The application discloses a rear bumper with a buffer structure, which comprises a transverse buffer structure and a longitudinal buffer structure, the transverse buffer structure comprises a mounting frame, a fixed shell, a supporting ball and a fixed plate, the top of the mounting frame is fixedly connected with the fixed shell, the inside of the fixed shell is provided with a buffer assembly, the top surface of the fixed shell is rotationally connected with the supporting ball, and the supporting ball is slidingly connected with the bottom surface of the fixed plate. The transverse buffer structure can buffer the impact force from the side, reduce the deformation probability of the rear bumper, and increase the service life of the rear bumper. The longitudinal buffer structure can buffer the impact force from the front, and the multiple buffer assemblies, such as the third buffer spring, the second buffer air bag, the fifth buffer spring and the first buffer air bag, can improve the longitudinal buffer performance of the rear bumper, so that the rear bumper has strong buffer performance.

Description

Technical Field

[0001] This application relates to a bumper, specifically a rear bumper with a buffer structure. Background Technology

[0002] Bumpers are components installed at the front and rear of a car. They not only have a decorative function, but more importantly, they are safety devices that absorb and mitigate external impacts, protect the vehicle body, and ensure the safety of the occupants. The rear bumper is a type of bumper. Bumpers serve multiple functions, including safety protection, vehicle decoration, and improving the vehicle's aerodynamic characteristics.

[0003] In the patent document "CN213676600U A New Energy SUV Rear Bumper Buffer Structure", a groove, a sliding plate, and a spring are set up. When the bumper body is impacted by the external environment, the fixed frame compresses the spring, thereby causing the sliding plate to slide in the groove. Under the action of the spring force, the impact force can be buffered to ensure the safety of the occupants. However, relying solely on the spring to achieve the buffering function results in poor buffering performance of the rear bumper. At the same time, it can only buffer the impact force from the front and lacks the ability to handle the impact force from the side. This makes the rear bumper easy to deform and can easily cause significant damage to the impacting object other than the rear bumper during an impact. Summary of the Invention

[0004] To address the shortcomings of existing technologies, a lateral buffer structure can be used to buffer impact forces from the side, solving the problem that the rear bumper is difficult to buffer lateral impact forces, reducing the probability of rear bumper deformation, and increasing the service life of the rear bumper.

[0005] In order to solve the problems in the existing technology, the longitudinal buffer structure can be used to buffer the impact force from the front, and the longitudinal buffer performance of the rear bumper can be improved by using multiple buffer components such as the third buffer spring, the second buffer airbag, the fifth buffer spring and the first buffer airbag, thus solving the problem of poor buffer performance of the rear bumper and giving the rear bumper strong buffer performance.

[0006] Furthermore, in order to address the problems in the existing technology, protective components can be used to protect the impacting object from the rear bumper after an impact, preventing the impacting object from directly and rigidly colliding with the rear bumper and reducing the damage to the impacting object.

[0007] Furthermore, to address the problems in existing technologies, an alarm structure can be used to issue an alarm when the rear bumper is subjected to longitudinal impact force, alerting both parties involved in the collision and preventing the impact from escalating further.

[0008] A rear bumper with a buffer structure includes a lateral buffer structure and a longitudinal buffer structure. The lateral buffer structure includes a mounting bracket, a fixed housing, a supporting ball, and a fixed plate. The fixed housing is fixedly connected to the top of the mounting bracket. A buffer assembly is disposed inside the fixed housing. The supporting ball is rotatably connected to the top surface of the fixed housing. The supporting ball is slidably connected to the bottom surface of the fixed plate.

[0009] The longitudinal buffer structure includes a mounting housing, a protective plate, a connecting column, a connecting plate, a first buffer airbag, and a support plate. The mounting housing is fixed to the top of the fixed plate. A protective plate is provided on the outer side of the mounting housing. An auxiliary component is provided between the protective plate and the mounting housing. A protective component is provided on the outer side of the protective plate. A connecting column is fixed to the inner side of the protective plate. A connecting plate is fixed to the bottom end of the connecting column. A first buffer airbag is fixed to the bottom of the connecting plate. The first buffer airbag is fixed to the top of the support plate. The support plate is fixed to the inner wall of the mounting housing. An alarm component is provided in the inner cavity of the mounting housing.

[0010] Furthermore, the top surface of the fixed housing is rotatably connected with several evenly distributed support balls, the bottom surface of the fixed plate has two symmetrically distributed sliding grooves, the support balls are slidably connected to the bottom surface of the fixed plate through the sliding grooves, the cross-section of the protective plate is an inverted U-shaped structure, the inner wall of the protective plate is fixed with four connecting columns distributed in a rectangular structure, the top surface of the mounting housing has four connecting holes distributed in a rectangular structure, and the end of the connecting column away from the protective plate passes through the connecting hole and extends to the inner cavity of the mounting housing.

[0011] Furthermore, the buffer assembly includes a first fixed post, a first sliding plate, and a first buffer spring. A plurality of first fixed posts are fixedly connected to the inner cavity sidewall of the fixed housing. A first sliding plate is slidably connected to the surface of the first fixed post. A first buffer spring is fixedly connected to both sides of the first sliding plate. The first sliding plate has a plurality of sliding holes. The first fixed post is connected to the first sliding plate through the sliding holes. The ends of the two first buffer springs away from the first sliding plate are respectively fixedly connected to the inner cavity sidewall of the fixed housing.

[0012] Furthermore, the buffer assembly includes a second fixed post, a second sliding plate, a sliding rack, a rotating gear, an eccentric wheel, a mounting plate, and a second buffer spring. The second fixed post is fixedly connected to the inner wall of the fixed housing cavity. The second sliding plate is slidably connected to the surface of the second fixed post. The sliding rack is fixedly connected to the bottom of the second sliding plate. The rotating gear is meshed with the bottom of the sliding rack. The rotating gear is fixedly connected to the end face of the eccentric wheel. A mounting plate is provided below the eccentric wheel. The second buffer spring is fixedly connected to the bottom of the mounting plate. The second buffer spring is fixedly connected to the bottom of the inner cavity of the fixed housing.

[0013] Furthermore, a number of second fixed posts are fixedly connected to the inner wall of the fixed housing cavity, and a number of preset holes are opened in the second sliding plate. The second fixed posts are connected through the preset holes and the second sliding plate. A number of eccentric wheels are provided in the inner cavity of the fixed housing, and rotating gears are fixedly connected to both ends of the eccentric wheels. The rotating gears are rotatably connected to the inner wall of the fixed housing cavity. Two symmetrically distributed sliding racks are fixedly connected to the bottom of the second sliding plate.

[0014] Furthermore, the auxiliary component includes a third buffer spring and a second buffer airbag. Several third buffer springs are fixedly connected to the inner side of the protective plate. The third buffer springs are fixedly connected to the top surface of the mounting housing. The top surface of the mounting housing is fixedly connected to the second buffer airbag, and the top of the second buffer airbag is fixedly connected to the inner side of the protective plate.

[0015] Furthermore, the auxiliary component includes a conical block, a movable block, a limiting post, a fixed limiting plate, a movable limiting plate, a reinforcing plate, a damping block, and a fourth buffer spring. Several conical blocks are fixedly connected to the inner side of the protective plate. Two symmetrically distributed movable blocks are arranged below each conical block. Several limiting posts are fixedly connected to the opposite sides of the two movable blocks. The surfaces of the limiting posts are slidably connected to the fixed limiting plate. The fixed limiting plate is fixedly connected to the top of the mounting housing. A movable limiting plate is fixedly connected to one end of the fixed limiting plate. A reinforcing plate is provided on the side of the movable limiting plate away from the movable blocks. The reinforcing plate is fixedly connected to the top of the mounting housing. A damping block is fixedly connected to the side of the reinforcing plate near the movable limiting plate. A fourth buffer spring is fixedly connected to the opposite sides of the two movable blocks. The fourth buffer spring is fixedly connected to one side of the fixed limiting plate.

[0016] Furthermore, the protective assembly includes side panels and rotating rollers. Two symmetrically distributed side panels are fixed to the outer side of the protective panel. The two side panels are rotatably connected to both ends of the rotating rollers, and several evenly distributed rotating rollers are rotatably connected to one side of the side panels. The protective assembly includes a third buffer airbag, which is fixed to the outer side of the protective panel.

[0017] Furthermore, the alarm assembly includes a reinforcing column, a movable plate, a fifth buffer spring, an adjusting column, an adjusting frame, a blocking plate, and a laser alarm assembly. The reinforcing column is fixed to the side of the support plate, and the movable plate is slidably connected to the surface of the reinforcing column. The fifth buffer spring is fixed to both sides of the movable plate. An adjusting column is provided above the movable plate, and adjusting frames are rotatably connected to both ends of the adjusting column. The upper adjusting frame is fixed to the bottom of the connecting plate, and the lower adjusting frame is fixed to the top of the movable plate. A blocking plate is fixed to the bottom of the movable plate, and a laser alarm assembly is installed diagonally below the blocking plate. The laser alarm assembly is installed on the inner wall of the mounting housing cavity.

[0018] Furthermore, several reinforcing columns are fixedly connected to both sides of the support plate. The end of each reinforcing column away from the support plate is fixedly connected to the inner wall of the mounting housing. A fifth buffer spring is fixedly connected to both sides of the movable plate. The fifth buffer spring on one side is fixedly connected to the inner wall of the mounting housing, and the fifth buffer spring on the other side is fixedly connected to the side of the support plate. The adjusting frame includes a central column and a central plate. The central column has central plates fixedly connected to both ends. The surface of the central column is rotatably connected to the adjusting column. The laser alarm component includes a transmitting end and a receiving end. The transmitting end and the receiving end are respectively installed on the inner walls of the corresponding two sides of the mounting housing.

[0019] The advantages of this application are:

[0020] 1. This application utilizes a lateral buffer structure to buffer the impact force from the side, reducing the probability of rear bumper deformation and increasing the service life of the rear bumper.

[0021] 2. This application utilizes a longitudinal buffer structure to buffer the impact force from the front, and utilizes multiple buffer components such as the third buffer spring, the second buffer airbag, the fifth buffer spring, and the first buffer airbag to improve the longitudinal buffer performance of the rear bumper, giving the rear bumper strong buffer performance.

[0022] 3. This application utilizes protective components to protect the impactor from the rear bumper after an impact, preventing the impactor from directly colliding rigidly with the rear bumper and reducing the damage to the impactor.

[0023] 4. This application utilizes an alarm structure to trigger an alarm when the rear bumper is subjected to longitudinal impact force, alerting both parties involved in the collision and preventing the impact from escalating further. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0025] Figure 1 This is a three-dimensional structural diagram of a rear bumper with a buffer structure according to an embodiment of this application;

[0026] Figure 2 yes Figure 1 The diagram shows a schematic representation of the rear bumper's planar structure in the embodiment shown.

[0027] Figure 3 yes Figure 1 The diagram shows the internal structure of the fixed housing in the embodiment shown.

[0028] Figure 4 yes Figure 1 The schematic diagram of the fixed housing side view structure in the embodiment shown;

[0029] Figure 5 yes Figure 1 A schematic diagram of the positional relationship between the sliding rack, rotating gear, and eccentric wheel in the illustrated embodiment;

[0030] Figure 6 yes Figure 1 The diagram shown illustrates the positional relationship between the mounting housing and the protective plate in the embodiment shown.

[0031] Figure 7 yes Figure 1 The schematic diagram shows the positional relationship between the conical block, the moving block limiting post, the fixed limiting plate, the moving limiting plate, the reinforcing plate, the damping block, and the fourth buffer spring in the embodiment shown.

[0032] Figure 8 yes Figure 1 The schematic diagram shows the positional relationship between the reinforcing column, the movable plate, the fifth buffer spring, the adjusting column, the adjusting frame, the first buffer airbag, and the support plate in the embodiment shown.

[0033] Figure 9 yes Figure 1 The schematic diagram shows the internal side view of the mounting housing in the embodiment shown.

[0034] Figure 10 yes Figure 1 The schematic diagram shows the positional relationship between the mounting housing, protective plate, and third buffer airbag in the embodiment shown.

[0035] The meanings of the reference numerals in the figure are as follows: 1. Mounting bracket; 2. Fixed housing; 3. Supporting ball; 4. Fixed plate; 5. Mounting housing; 6. Protective plate; 7. Connecting column; 8. Connecting plate; 9. First buffer airbag; 10. Support plate; 11. First fixed column; 12. First sliding plate; 13. First buffer spring; 14. Second fixed column; 15. Second sliding plate; 16. Sliding rack; 17. Rotating gear; 18. Eccentric wheel; 19. Mounting plate; 20. Second buffer spring ; 21. Third buffer spring; 22. Second buffer airbag; 23. Conical block; 24. Moving block; 25. Limiting post; 26. Fixed limiting plate; 27. Moving limiting plate; 28. Reinforcing plate; 29. ​​Damping block; 30. Fourth buffer spring; 31. Side plate; 32. Rotating roller; 33. Third buffer airbag; 34. Reinforcing post; 35. Moving plate; 36. Fifth buffer spring; 37. Adjusting post; 38. Adjusting frame; 39. Blocking plate; 40. Laser alarm assembly. Detailed Implementation

[0036] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] Example 1

[0040] Reference Figures 1 to 2 A rear bumper with a buffer structure includes a lateral buffer structure and a longitudinal buffer structure. The lateral buffer structure includes a mounting bracket 1, a fixed housing 2, a supporting ball 3, and a fixed plate 4. The fixed housing 2 is fixedly connected to the top of the mounting bracket 1. A buffer assembly is provided inside the fixed housing 2. The supporting ball 3 is rotatably connected to the top surface of the fixed housing 2. The supporting ball 3 is slidably connected to the bottom surface of the fixed plate 4. The lateral buffer structure can buffer the impact force from the side, reduce the probability of the rear bumper deformation, and when the rear bumper is subjected to the impact force from the side, the fixed plate 4 moves. At this time, the supporting ball 3 can make the movement of the fixed plate 4 smoother.

[0041] The longitudinal buffer structure includes a mounting housing 5, a protective plate 6, a connecting column 7, a connecting plate 8, a first buffer airbag 9, and a support plate 10. The mounting housing 5 is fixed to the top of the fixed plate 4. The protective plate 6 is provided on the outside of the mounting housing 5. An auxiliary component is provided between the protective plate 6 and the mounting housing 5. A protective component is provided on the outside of the protective plate 6. The connecting column 7 is fixed to the inside of the protective plate 6. The connecting plate 8 is fixed to the bottom of the connecting column 7. The first buffer airbag 9 is fixed to the bottom of the connecting plate 8. The first buffer airbag 9 is fixed to the top of the support plate 10. The support plate 10 is fixed to the inner wall of the mounting housing 5. An alarm component is provided in the inner cavity of the mounting housing 5. The longitudinal buffer structure can buffer the impact force from the front.

[0042] Through the above technical solutions, the lateral buffer structure can buffer the impact force from the side, reducing the probability of rear bumper deformation and increasing the service life of the rear bumper. The longitudinal buffer structure can buffer the impact force from the front. Furthermore, the use of multiple buffer components such as the third buffer spring 21, the second buffer airbag 22, the fifth buffer spring 36, and the first buffer airbag 9 can improve the longitudinal buffer performance of the rear bumper, giving it strong buffering capabilities. The protective components can protect the impacting object from directly colliding rigidly with the rear bumper, reducing the damage to the impacting object. The alarm structure can sound an alarm when the rear bumper is subjected to longitudinal impact force, alerting both parties involved in the collision and preventing the impact from escalating further.

[0043] Specifically, such as Figure 2 and Figure 4 As shown, the top surface of the fixed housing 2 is rotatably connected with several evenly distributed support balls 3, and the bottom surface of the fixed plate 4 has two symmetrically distributed sliding grooves. The support balls 3 are slidably connected to the bottom surface of the fixed plate 4 through the sliding grooves. The support balls 3 can make the movement of the fixed plate 4 smoother. The cross-section of the protective plate 6 is an inverted U-shaped structure. The inner wall of the protective plate 6 is fixed with four rectangularly distributed connecting columns 7. The top surface of the mounting housing 5 has four rectangularly distributed connecting holes. The end of the connecting column 7 away from the protective plate 6 passes through the connecting hole and extends to the inner cavity of the mounting housing 5. The connecting column 7 can limit the movement trajectory of the protective plate 6.

[0044] As an optimization solution, such as Figure 2 As shown, the buffer assembly includes a first fixed post 11, a first sliding plate 12, and a first buffer spring 13. Several first fixed posts 11 are fixedly connected to the inner cavity side wall of the fixed housing 2. The first sliding plate 12 is slidably connected to the surface of the first fixed post 11. The first buffer spring 13 is fixedly connected to both sides of the first sliding plate 12, and the first sliding plate 12 has several sliding holes. The first fixed post 11 is connected to the first sliding plate 12 through the sliding holes. The ends of the two first buffer springs 13 away from the first sliding plate 12 are respectively fixed to the inner cavity side wall of the fixed housing 2.

[0045] With the above technical solution, when the rear bumper is subjected to a lateral impact force from the side, the fixed plate 4 moves, thereby driving the first sliding plate 12 to move in the same direction as the first fixed column 11. At this time, the first sliding plate 12 stretches the first buffer spring 13 on one side and compresses the first buffer spring 13 on the other side, thereby using the first buffer springs 13 on both sides to buffer the lateral impact force.

[0046] As an optimization solution, such as Figure 2As shown, the auxiliary components include a third buffer spring 21 and a second buffer airbag 22. Several third buffer springs 21 are fixed to the inner side of the protective plate 6. The third buffer springs 21 are fixed to the top surface of the mounting housing 5. The second buffer airbag 22 is fixed to the top surface of the mounting housing 5. The top of the second buffer airbag 22 is fixed to the inner side of the protective plate 6.

[0047] Through the above technical solution, when the protective plate 6 is subjected to an impact force from the front, as the protective plate 6 moves toward the mounting housing 5, the third buffer spring 21 and the second buffer airbag 22 absorb and buffer the impact force, thereby improving the buffering performance of the rear bumper.

[0048] As an optimization solution, such as Figure 2 As shown, the protective assembly includes side plates 31 and rotating rollers 32. Two symmetrically distributed side plates 31 are fixed to the outer side of the protective plate 6. The two side plates 31 are rotatably connected to both ends of the rotating rollers 32, and several evenly distributed rotating rollers 32 are rotatably connected to one side of the side plates 31.

[0049] Through the above technical solution, when the protective plate 6 is subjected to an impact force, the rotating roller 32 can rotate, thereby dispersing the impact force and buffering the impacting object other than the rear bumper, avoiding rigid collision between the impacting object and the rear bumper, reducing the damage to the impacting object, and increasing the safety of the bumper.

[0050] As an optimization solution, such as Figure 2 , Figure 8 and Figure 9 As shown, the alarm assembly includes a reinforcing column 34, a movable plate 35, a fifth buffer spring 36, an adjusting column 37, an adjusting frame 38, a blocking plate 39, and a laser alarm assembly 40. The reinforcing column 34 is fixed to the side of the support plate 10. The movable plate 35 is slidably connected to the surface of the reinforcing column 34. The fifth buffer spring 36 is fixed to both sides of the movable plate 35. The adjusting column 37 is provided above the movable plate 35. The adjusting frame 38 is rotatably connected to both ends of the adjusting column 37. The upper adjusting frame 38 is fixed to the bottom of the connecting plate 8, and the lower adjusting frame 38 is fixed to the top of the movable plate 35. The blocking plate 39 is fixed to the bottom of the movable plate 35. The laser alarm assembly 40 is installed diagonally below the blocking plate 39. The laser alarm assembly 40 is installed on the inner wall of the mounting housing 5.

[0051] Through the above technical solution, when the protective plate 6 is subjected to an impact force from the front, the protective plate 6 moves towards the mounting housing 5, thereby driving the connecting column 7 and the connecting plate 8 to move in the same direction. At this time, under the action of the adjusting bracket 38, the adjusting column 37 rotates, thereby causing the moving plate 35 to move along the reinforcing column 34. At this time, the moving plate 35 compresses the fifth buffer spring 36 on one side and stretches the fifth buffer spring 36 on the other side, thereby further improving the buffer performance of the rear bumper. When the moving plate 35 moves, it can drive the blocking plate 39 to move in the same direction. When the blocking plate 39 blocks the laser alarm component 40, the laser alarm component 40 sounds an alarm to remind both parties involved in the collision and prevent the collision from being further aggravated.

[0052] Specifically, such as Figure 2 , Figure 8 and Figure 9 As shown, several reinforcing columns 34 are fixedly connected to both sides of the support plate 10. The end of the reinforcing column 34 away from the support plate 10 is fixedly connected to the inner wall of the mounting housing 5. The reinforcing column 34 can limit the movement trajectory of the moving plate 35. A fifth buffer spring 36 is fixedly connected to both sides of the moving plate 35. The fifth buffer spring 36 on one side is fixedly connected to the inner wall of the mounting housing 5, and the fifth buffer spring 36 on the other side is fixedly connected to the side of the support plate 10. The adjusting frame 38 includes a central column and a central plate. The central plate is fixedly connected to both ends of the central column. The surface of the central column is rotatably connected to the adjusting column 37. The adjusting frame 38 allows the adjusting column 37 to rotate. The laser alarm component 40 includes a transmitting end and a receiving end. The transmitting end and the receiving end are respectively installed on the inner walls of the corresponding two sides of the mounting housing 5. When the blocking plate 39 blocks the infrared light emitted by the transmitting end, the receiving end cannot receive the corresponding infrared light. At this time, the laser alarm component 40 will sound an alarm.

[0053] Example 2

[0054] As a further optimization scheme, such as Figure 3 , Figure 4 and Figure 5 As shown, the buffer assembly includes a second fixed post 14, a second sliding plate 15, a sliding rack 16, a rotating gear 17, an eccentric wheel 18, a mounting plate 19, and a second buffer spring 20. The second fixed post 14 is fixed to the inner wall of the fixed housing 2. The second sliding plate 15 is slidably connected to the surface of the second fixed post 14. The sliding rack 16 is fixed to the bottom of the second sliding plate 15. The rotating gear 17 is meshed with the bottom of the sliding rack 16. The rotating gear 17 is fixed to the end face of the eccentric wheel 18. The mounting plate 19 is provided below the eccentric wheel 18. The second buffer spring 20 is fixed to the bottom of the mounting plate 19. The second buffer spring 20 is fixed to the bottom of the inner cavity of the fixed housing 2.

[0055] Specifically, a number of second fixed posts 14 are fixedly connected to the inner wall of the fixed housing 2, and a number of preset holes are opened in the second sliding plate 15. The second fixed posts 14 are connected through the preset holes and the second sliding plate 15. A number of eccentric wheels 18 are provided in the inner cavity of the fixed housing 2. Rotating gears 17 are fixedly connected to both ends of the eccentric wheels 18. The rotating gears 17 are rotatably connected to the inner wall of the fixed housing 2. Two symmetrically distributed sliding racks 16 are fixedly connected to the bottom of the second sliding plate 15.

[0056] Through the above technical solution, when the fixed plate 4 moves, it can drive the second sliding plate 15 to move in the same direction as the second fixed column 14, thereby driving the sliding rack 16 to move in the same direction. When the sliding rack 16 moves, it can drive the rotating gear 17 to rotate, thereby driving the eccentric wheel 18 to rotate. At this time, the eccentric wheel 18 presses down on the mounting plate 19, thereby compressing the second buffer spring 20, and using the second buffer spring 20 to buffer the impact force.

[0057] Example 3

[0058] As a further optimization scheme, such as Figure 6 and Figure 7 As shown, the auxiliary components include a conical block 23, a movable block 24, a limiting post 25, a fixed limiting plate 26, a movable limiting plate 27, a reinforcing plate 28, a damping block 29, and a fourth buffer spring 30. Several conical blocks 23 are fixedly connected to the inner side of the protective plate 6. Two symmetrically distributed movable blocks 24 are provided below each conical block 23. Several limiting posts 25 are fixedly connected to the opposite side of the two movable blocks 24. The surface of the limiting posts 25 is slidably connected to the fixed limiting plate 26. The fixed limiting plate 26 is fixedly connected to the top of the mounting housing 5. The movable limiting plate 27 is fixedly connected to one end of the fixed limiting plate 26. A reinforcing plate 28 is provided on the side of the movable limiting plate 27 away from the movable block 24. The reinforcing plate 28 is fixedly connected to the top of the mounting housing 5. A damping block 29 is fixedly connected to the side of the reinforcing plate 28 close to the movable limiting plate 27. A fourth buffer spring 30 is fixedly connected to the opposite side of the two movable blocks 24. The fourth buffer spring 30 is fixedly connected to one side of the fixed limiting plate 26.

[0059] Through the above technical solution, when the protective plate 6 is subjected to force and moves downward, it drives the conical block 23 to move in the same direction. At this time, the conical block 23 compresses the moving blocks 24 on both sides, causing the moving blocks 24 on both sides to move in opposite directions, thereby driving the limiting post 25 to move in the same direction, and then driving the fixed limiting plate 26 to move in the same direction. Furthermore, a reinforcing plate 28 and a damping block 29 are provided, which can make the moving limiting plate 27 contact the damping block 29 before the bottom of the conical block 23 contacts the mounting housing 5, thus avoiding the collision between the conical block 23 and the mounting housing 5. Moreover, when the moving block 24 moves, it can compress the fourth buffer spring 30, and use the fourth buffer spring 30 and the damping block 29 to buffer the impact force.

[0060] Example 4

[0061] As a further optimization scheme, such as Figure 10 As shown, the protective component includes a third buffer airbag 33, which is fixed to the outside of the protective plate 6. The third buffer airbag 33 can buffer impacts other than the rear bumper, preventing rigid collisions and reducing damage to the impacting objects.

[0062] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A rear bumper having a bumper structure, characterized by: It includes a transverse buffer structure and a longitudinal buffer structure. The transverse buffer structure includes a mounting frame (1), a fixed housing (2), a supporting ball (3), and a fixed plate (4). The mounting frame (1) is fixedly connected to the top of the fixed housing (2). A buffer assembly is provided inside the fixed housing (2). The top surface of the fixed housing (2) is rotatably connected to the supporting ball (3). The supporting ball (3) is slidably connected to the bottom surface of the fixed plate (4). The longitudinal buffer structure includes a mounting housing (5), a protective plate (6), a connecting column (7), a connecting plate (8), a first buffer airbag (9), and a support plate (10). The mounting housing (5) is fixed to the top of the fixed plate (4). A protective plate (6) is provided on the outside of the mounting housing (5). An auxiliary component is provided between the protective plate (6) and the mounting housing (5). A protective component is provided on the outside of the protective plate (6). A connecting column (7) is fixed to the inside of the protective plate (6). A connecting plate (8) is fixed to the bottom of the connecting column (7). A first buffer airbag (9) is fixed to the bottom of the connecting plate (8). The first buffer airbag (9) is fixed to the top of the support plate (10). The support plate (10) is fixed to the inner wall of the mounting housing (5). An alarm component is provided in the inner cavity of the mounting housing (5).

2. The rear bumper with a buffer structure according to claim 1, characterized in that: The top surface of the fixed housing (2) is rotatably connected with several evenly distributed support balls (3). The bottom surface of the fixed plate (4) has two symmetrically distributed sliding grooves. The support balls (3) are slidably connected to the bottom surface of the fixed plate (4) through the sliding grooves. The cross section of the protective plate (6) is an inverted U-shaped structure. The inner wall of the protective plate (6) is fixed with four rectangularly distributed connecting columns (7). The top surface of the mounting housing (5) has four rectangularly distributed connecting holes. The end of the connecting column (7) away from the protective plate (6) passes through the connecting hole and extends to the inner cavity of the mounting housing (5).

3. A rear bumper with a buffer structure according to claim 1, characterized in that: The buffer assembly includes a first fixed post (11), a first sliding plate (12), and a first buffer spring (13). Several first fixed posts (11) are fixedly connected to the inner cavity sidewall of the fixed housing (2). The first sliding plate (12) is slidably connected to the surface of the first fixed post (11). The first buffer spring (13) is fixedly connected to both sides of the first sliding plate (12). The first sliding plate (12) has several sliding holes. The first fixed post (11) is connected to the first sliding plate (12) through the sliding holes. The ends of the two first buffer springs (13) away from the first sliding plate (12) are respectively fixed to the inner cavity sidewall of the fixed housing (2).

4. A rear bumper with a buffer structure according to claim 1, characterized in that: The buffer assembly includes a second fixed post (14), a second sliding plate (15), a sliding rack (16), a rotating gear (17), an eccentric wheel (18), a mounting plate (19), and a second buffer spring (20). The second fixed post (14) is fixed to the inner wall of the fixed housing (2). The second sliding plate (15) is slidably connected to the surface of the second fixed post (14). The sliding rack (16) is fixed to the bottom of the second sliding plate (15). The rotating gear (17) is meshed with the bottom of the sliding rack (16). The rotating gear (17) is fixed to the end face of the eccentric wheel (18). The mounting plate (19) is provided below the eccentric wheel (18). The second buffer spring (20) is fixed to the bottom of the mounting plate (19). The second buffer spring (20) is fixed to the bottom of the inner cavity of the fixed housing (2).

5. A rear bumper with a buffer structure according to claim 4, characterized in that: The inner cavity sidewall of the fixed housing (2) is fixed with several second fixed posts (14), and the second sliding plate (15) is provided with several preset holes. The second fixed posts (14) are connected through the preset holes and the second sliding plate (15). Several eccentric wheels (18) are provided in the inner cavity of the fixed housing (2). Rotating gears (17) are fixed at both ends of the eccentric wheels (18). The rotating gears (17) are rotatably connected to the inner cavity sidewall of the fixed housing (2). Two symmetrically distributed sliding racks (16) are fixed at the bottom of the second sliding plate (15).

6. A rear bumper with a buffer structure according to claim 1, characterized in that: The auxiliary components include a third buffer spring (21) and a second buffer airbag (22). Several third buffer springs (21) are fixed to the inner side of the protective plate (6). The third buffer springs (21) are fixed to the top surface of the mounting housing (5). The second buffer airbag (22) is fixed to the top surface of the mounting housing (5). The top of the second buffer airbag (22) is fixed to the inner side of the protective plate (6).

7. A rear bumper with a buffer structure according to claim 1, characterized in that: The auxiliary components include a conical block (23), a movable block (24), a limiting post (25), a fixed limiting plate (26), a movable limiting plate (27), a reinforcing plate (28), a damping block (29), and a fourth buffer spring (30). Several conical blocks (23) are fixedly connected to the inner side of the protective plate (6). Each conical block (23) has two symmetrically distributed movable blocks (24) below it. Several limiting posts (25) are fixedly connected to the opposite sides of the two movable blocks (24). The surfaces of the limiting posts (25) are slidably connected to the fixed limiting plate (26). A fixed limiting plate (26) is fixed to the top of the mounting housing (5). A movable limiting plate (27) is fixed to one end of the fixed limiting plate (26). A reinforcing plate (28) is provided on the side of the movable limiting plate (27) away from the movable block (24). The reinforcing plate (28) is fixed to the top of the mounting housing (5). A damping block (29) is fixed to the side of the reinforcing plate (28) close to the movable limiting plate (27). A fourth buffer spring (30) is fixed to the opposite side of the two movable blocks (24). The fourth buffer spring (30) is fixed to one side of the fixed limiting plate (26).

8. A rear bumper with a buffer structure according to claim 1, characterized in that: The protective assembly includes side plates (31) and rotating rollers (32). Two symmetrically distributed side plates (31) are fixed to the outside of the protective plate (6). The two side plates (31) are rotatably connected to both ends of the rotating rollers (32). Several evenly distributed rotating rollers (32) are rotatably connected to one side of the side plates (31). The protective assembly includes a third buffer airbag (33), which is fixed to the outside of the protective plate (6).

9. A rear bumper with a buffer structure according to claim 1, characterized in that: The alarm assembly includes a reinforcing column (34), a movable plate (35), a fifth buffer spring (36), an adjusting column (37), an adjusting frame (38), a blocking plate (39), and a laser alarm assembly (40). The reinforcing column (34) is fixed to the side of the support plate (10). The movable plate (35) is slidably connected to the surface of the reinforcing column (34). The fifth buffer spring (36) is fixed to both sides of the movable plate (35). An adjusting column (37) is provided above the movable plate (35). An adjusting frame (38) is rotatably connected to both ends of the adjusting column (37). The upper adjusting frame (38) is fixed to the bottom of the connecting plate (8), and the lower adjusting frame (38) is fixed to the top of the movable plate (35). A blocking plate (39) is fixed to the bottom of the movable plate (35). A laser alarm assembly (40) is installed diagonally below the blocking plate (39). The laser alarm assembly (40) is installed on the inner wall of the mounting housing (5).

10. A rear bumper with a buffer structure according to claim 9, characterized in that: Several reinforcing columns (34) are fixedly connected to both sides of the support plate (10). The end of the reinforcing column (34) away from the support plate (10) is fixedly connected to the inner wall of the mounting housing (5). The moving plate (35) is fixedly connected to both sides of the fifth buffer spring (36). The fifth buffer spring (36) on one side is fixedly connected to the inner wall of the mounting housing (5), and the fifth buffer spring (36) on the other side is fixedly connected to the side of the support plate (10). The adjusting frame (38) includes a central column and a central plate. The central column is fixedly connected to both ends of the central plate. The surface of the central column is rotatably connected to the adjusting column (37). The laser alarm component (40) includes a transmitting end and a receiving end. The transmitting end and the receiving end are respectively installed on the inner walls of the corresponding two sides of the mounting housing (5).

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