Expandable rear bumper

By designing an expandable rear bumper, utilizing the sliding structure of the base and mounting plate and the locking assembly, the problem of the traditional rear bumper's inability to be expanded is solved, achieving non-destructive installation and high versatility, and reducing user replacement costs.

CN224090158UActive Publication Date: 2026-04-07BOSS (BEIJING) AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional rear bumper bars cannot be expanded to meet user needs. They require drilling or welding to install accessories, which damages the original vehicle structure and has poor versatility, resulting in high replacement costs for users.

Method used

An expandable rear bumper has been designed, comprising a base, a movable base, a mounting plate, and a lock body assembly. Position adjustment is achieved through a sliding groove and a locking screw, and a T-slot + positioning head structure enables plug-and-lock functionality. It is compatible with the installation of accessories such as bicycle racks and luggage boxes.

Benefits of technology

It enables horizontal adjustment of the installation spacing without drilling, supports the installation of various accessories, improves the flexibility and versatility of use, and reduces installation costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224090158U_ABST
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Abstract

The utility model relates to the technical field of automobile parts, in particular to an expandable rear bumper which comprises a base, moving seats, a mounting plate and end covers, a sliding groove is formed in the front face of the base, a plurality of sets of moving seats are arranged in the sliding groove, the end covers for sealing the sliding groove are further arranged on the two sides of the base, locking screws are arranged on the moving seats, and the mounting plate is arranged on the mounting plate. The movable seat is further provided with an installation hole, and the installation plate is provided with a bolt connected with the installation hole. According to the expandable rear bumper, the multiple moving seats are arranged in the sliding grooves in the front face of the base, the positions of the mounting plates are fixed through locking screws, the mounting distance can be transversely adjusted without punching, and the expandable rear bumper meets the mounting requirements of different accessories such as bicycle frames and luggage cases; a lock body assembly of the mounting plate adopts a T-shaped groove and positioning head structure, and a spring drives the positioning head to be automatically inserted into a first positioning hole, so that'plug-and-lock 'of an accessory is realized; and other mounting accessories can be assembled on the movable seat.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an expandable rear bumper. Background Technology

[0002] Traditional rear bumper bars only provide collision protection and cannot be expanded according to the user's needs. For example, they cannot be equipped with accessories such as bicycle racks, luggage boxes, and tow hooks.

[0003] Adding accessories requires drilling or welding, which damages the original vehicle structure and is difficult to restore after disassembly;

[0004] Specialized accessories require customization and adaptation, have poor universality, and result in high replacement costs for users. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an expandable rear bumper.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an expandable rear bumper, including a base, movable seats, a mounting plate, and end caps. The base has a sliding groove on its front side, and several sets of movable seats are arranged in the sliding groove. End caps that close the sliding groove are also provided on both sides of the base. Locking screws are provided on the movable seats, and mounting holes are also provided on the movable seats. Bolts that connect to the mounting holes are provided on the mounting plate. Several sets of radar holes are also provided on the base, and the radar holes are located below the sliding groove.

[0009] To facilitate the mounting of other devices, this utility model is improved by providing a lock body assembly on the mounting plate. The lock body assembly includes a storage frame, side plates, springs, guide rods, sliders, positioning heads, and a lock body frame. The lock body frame is provided on the front of the mounting plate, and a T-shaped groove with an upper opening is provided on the lock body frame. A first positioning hole communicating with the T-shaped groove is provided on the mounting plate. One end of the positioning head communicates with the first positioning hole, and a slider is provided at the other end of the positioning head. A storage frame for storing the positioning head and slider is also provided on the back of the mounting plate. Side plates connected to the mounting plate are provided on the left and right sides of the storage frame. A spring is also provided inside the storage frame, and both ends of the spring are connected to the inner wall of the storage frame and the slider, respectively. A guide rod communicating with the storage frame is provided on the back of the slider, and the guide rod is slidably connected to the storage frame.

[0010] To facilitate the provision of pedals or the mounting support for bicycles, this utility model is improved by providing a horizontal plate below the front of the mounting plate, and an anti-slip plate is provided on the horizontal plate.

[0011] Preferably, an auxiliary plate is also provided below the base. The auxiliary plate is inverted L-shaped, with its top connected to the base and its front connected to the back of the mounting plate.

[0012] Preferably, the base is further provided with reinforcing ribs at both the upper and lower ends of its back side.

[0013] Preferably, the back side of the slide is provided with a groove, and the base is provided with a screw that penetrates the back side wall of the groove, with the end of the screw located in the groove.

[0014] Preferably, friction texture is also provided on the upper part of the base.

[0015] Preferably, the base is further provided with an extension seat connected to the movable seat in the middle of the front side, and the extension seat is further provided with a trailer hook on the front side.

[0016] Preferably, the radar aperture is further provided with a mounting component, which includes an end head, a mounting base, and a cover. The mounting base is connected to the base, and the cover is provided on the front side of the mounting base. The cover has an output hole on the front side, and the end head that closes the output hole is also provided on the front side of the cover.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an expandable rear bumper, which has the following beneficial effects:

[0019] This expandable rear bumper features multiple movable seats in the groove on the front of the base. The mounting plate is fixed in position by locking screws, allowing for lateral adjustment of the installation spacing without drilling. It is suitable for the installation needs of various accessories such as bicycle racks, luggage boxes, and spare tires.

[0020] The lock body assembly of the mounting plate adopts a T-slot + positioning head structure. The spring drives the positioning head to automatically insert into the first positioning hole, realizing the "plug and lock" of the accessory, so as to extend and expand the corresponding structure.

[0021] Other installation accessories can also be installed on the mobile base to meet the expansion needs of users. Attached Figure Description

[0022] Figure 1 This is an exploded view of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the horizontal plate assembly structure of this utility model;

[0024] Figure 3 This is a side view of the structure of this utility model with a lock body assembly mounting plate;

[0025] Figure 4 The structure of this utility model Figure 3 An explosion diagram;

[0026] Figure 5 This is a partial cross-sectional schematic diagram of the structure of this utility model.

[0027] In the diagram: 1. Base; 2. Movable seat; 3. Mounting plate; 4. End cap; 5. Storage frame; 6. Side plate; 7. Spring; 8. Guide rod; 9. Slider; 10. Positioning head; 11. Lock body frame; 12. Horizontal plate; 13. Anti-slip plate; 14. Auxiliary plate; 15. Reinforcing rib; 16. Screw; 17. Friction texture; 18. Extension seat; 19. Trailer hook; 20. End; 21. Mounting seat; 22. Cover. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 An expandable rear bumper includes a base 1, a movable seat 2, a mounting plate 3, and an end cap 4. The base 1 has a sliding groove on its front side, and several sets of movable seats 2 are arranged in the sliding groove. The base 1 also has end caps 4 on both sides to close the sliding groove. The movable seat 2 is provided with locking screws and mounting holes. The mounting plate 3 is provided with bolts that connect to the mounting holes. The base 1 also has several sets of radar holes, which are located below the sliding groove.

[0030] Multiple movable seats 2 are installed in the sliding groove on the front of the base 1, and their positions in the sliding groove are fixed by locking screws. The mounting plate 3 is connected to the mounting holes of the movable seats 2 by bolts, and can move laterally along the sliding groove to adapt to the installation needs of accessories of different widths (such as bicycle racks and luggage).

[0031] The back side of the slide is provided with a groove, and the base 1 is provided with a screw 16 that passes through the back side wall of the groove. The end of the screw 16 is located in the groove to ensure that the base 1 is stably connected to the vehicle body. The groove structure prevents the movable seat 2 from getting stuck in the slide. In this embodiment, the movable seat 2 is in the shape of an inverted T, and the radar hole is a reserved position for radar installation on the vehicle body.

[0032] In this embodiment, a lock body assembly is provided on the mounting plate 3. The lock body assembly includes a storage frame 5, a side plate 6, a spring 7, a guide rod 8, a slider 9, a positioning head 10, and a lock body frame 11. The lock body frame 11 is provided on the front side of the mounting plate 3. The lock body frame 11 is provided with a T-shaped groove with an upper opening. A first positioning hole communicating with the T-shaped groove is provided on the mounting plate 3. One end of the positioning head 10 passes through the first positioning hole, and the other end of the positioning head 10 is provided with a slider 9. A storage frame 5 for storing the positioning head 10 and the slider 9 is also provided on the back side of the mounting plate 3. Side plates 6 connected to the mounting plate 3 are also provided on the left and right sides. A spring 7 is also provided inside the storage frame 5. The two ends of the spring 7 are connected to the inner wall of the storage frame 5 and the slider 9, respectively. A guide rod 8 penetrating the storage frame 5 is also provided on the back side of the slider 9. The guide rod 8 is slidably connected to the storage frame 5. The storage frame 5 and the mounting plate 3 form a T-shaped groove. Initially, the spring 7 is in a naturally extended state. Under the support of the storage frame 5, the slider 9 drives the positioning head 10 to protrude from the first positioning hole. At this time, the extension seat 18 of the extension part of the T-shaped groove can be limited. The guide rod 8 ensures the stability of the slider 9's movement.

[0033] In this embodiment, a horizontal plate 12 is provided below the front of the mounting plate 3, and an anti-slip plate 13 is provided on the horizontal plate 12. The horizontal plate 12 can provide a pedal function or support the bicycle. Together with the anti-slip plate 13, it ensures the stability of its support. An auxiliary plate 14 is also provided below the base 1. The auxiliary plate 14 is inverted L-shaped. The top of the auxiliary plate 14 is connected to the base 1, and the front of the auxiliary plate 14 is connected to the back of the mounting plate 3 to further ensure the support strength of the auxiliary plate 14.

[0034] In actual use, the base 1 is also provided with reinforcing ribs 15 at the upper and lower ends of the back side to ensure the stability of the connection between the base 1 and the vehicle body. The base 1 is also provided with friction texture 17 to provide anti-slip protection.

[0035] In actual use, the base 1 is also provided with an extension seat 18 connected to the movable seat 2 in the middle of the front side. The extension seat 18 is also provided with a trailer hook 19 on the front side to provide a pulling operation function.

[0036] In this embodiment, a mounting component is also provided inside the radar hole. The mounting component includes an end 20, a mounting base 21, and a cover 22. The mounting base 21 is connected to the base 1. The cover 22 is provided on the front side of the mounting base 21. The cover 22 has an output hole on the front side. The end 20 that closes the output hole is also provided on the front side of the cover 22. The mounting base 21 and the base 1 can be connected by bolts. The radar can be mounted on the mounting base 21. The cover 22 is used to provide protection for the radar. The end 20 is used to close the opening of the cover 22.

[0037] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0038] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An expandable rear bumper, comprising a base (1), a movable base (2), a mounting plate (3), and an end cap (4), characterized in that, The base (1) has a sliding groove on its front side, and several sets of movable seats (2) are arranged in the sliding groove. The base (1) also has end caps (4) on both sides to close the sliding groove. The movable seats (2) are provided with locking screws and mounting holes. The mounting plate (3) is provided with bolts that connect to the mounting holes. The base (1) also has several sets of radar holes, which are located below the sliding groove.

2. The expandable rear bumper according to claim 1, characterized in that, The mounting plate (3) is provided with a lock body assembly, which includes a storage frame (5), a side plate (6), a spring (7), a guide rod (8), a slider (9), a positioning head (10), and a lock body frame (11). The front of the mounting plate (3) is provided with the lock body frame (11), which is provided with a T-shaped groove with an upper opening. The mounting plate (3) is provided with a first positioning hole that communicates with the T-shaped groove. One end of the positioning head (10) communicates with the first positioning hole, and the other end of the positioning head (10) is provided with a... The slider (9) is provided with a storage frame (5) on the back side of the mounting plate (3) for storing the positioning head (10) and the slider (9). The storage frame (5) is also provided with side plates (6) connected to the mounting plate (3) on the left and right sides. The storage frame (5) is also provided with a spring (7). The two ends of the spring (7) are respectively connected to the inner wall of the storage frame (5) and the slider (9). The slider (9) is also provided with a guide rod (8) that passes through the storage frame (5) on the back side. The guide rod (8) is slidably connected to the storage frame (5).

3. The expandable rear bumper according to claim 1, characterized in that, A horizontal plate (12) is provided on the lower front of the mounting plate (3), and an anti-slip plate (13) is provided on the horizontal plate (12).

4. The expandable rear bumper according to claim 3, characterized in that, An auxiliary plate (14) is also provided below the base (1). The auxiliary plate (14) is inverted L-shaped. The top of the auxiliary plate (14) is connected to the base (1), and the front of the auxiliary plate (14) is connected to the back of the mounting plate (3).

5. The expandable rear bumper according to claim 4, characterized in that, The base (1) is also provided with reinforcing ribs (15) at the upper and lower ends of the back side.

6. The expandable rear bumper according to claim 5, characterized in that, The back side of the slide is provided with a groove, and the base (1) is provided with a screw (16) that penetrates the back side wall of the groove, with the end of the screw (16) located in the groove.

7. The expandable rear bumper according to claim 6, characterized in that, Friction textures (17) are also provided above the base (1).

8. The expandable rear bumper according to claim 7, characterized in that, The base (1) is also provided with an extension seat (18) connected to the movable seat (2) in the middle part of the front side, and a trailer hook (19) is also provided on the front side of the extension seat (18).

9. The expandable rear bumper according to claim 8, characterized in that, The radar hole is also provided with an installation component, which includes an end (20), a mounting base (21) and a cover (22). The mounting base (21) is connected to the base (1). The cover (22) is provided on the front of the mounting base (21). The cover (22) is provided on the front of the cover (22). The end (20) that closes the output hole is also provided on the front of the cover (22).