Bumper sleeve with elastic buffer structure
By introducing a protective frame and spring assembly into the bumper sleeve, elastic cushioning is provided, solving the problem of damage to the sleeve and bumper during towing and achieving a more stable and safer towing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU CITY LANDALAJIC STEEL PIPE ACCESSORIES
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
During towing, the connection between the tow hook and the bumper sleeve is prone to severe collisions and compression due to road conditions, resulting in damage to the sleeve and bumper.
A bumper sleeve with an elastic buffer structure was designed, including a protective frame, a spring assembly, and a support plate. The spring assembly provides elastic buffering force to reduce swaying and impact. The L-shaped connecting arm and the spring rod provide double protection for the threaded sleeve.
It effectively reduces the impact force on the threaded sleeve and bumper during towing, prevents structural breakage and damage, and improves the stability and safety of the towing process.
Smart Images

Figure CN224131013U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bumper sleeve technology, and relates to a bumper sleeve with an elastic buffer structure. Background Technology
[0002] With the development of the times and technology, cars have entered thousands of households. However, when driving a car, it is often necessary to install towing tools such as bumper tow sleeves and tow hooks to tow the vehicle.
[0003] When a trailer tows a vehicle using a tow hook, road conditions can easily cause the vehicle in front or behind to bump and sway, leading to severe collisions and compression at the tow hook connection. Since the tow hook is fixedly connected inside the towing sleeve, the impact force can easily be transmitted to the towing sleeve and bumper, causing the towing sleeve or even the bumper to crack or be damaged due to excessive impact or compression. Improvements are needed. Summary of the Invention
[0004] The purpose of this invention is to provide a bumper sleeve with an elastic buffer structure to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A bumper sleeve with an elastic buffer structure includes a bumper body, a bumper support column, a protective frame, and a threaded sleeve. One end of the bumper body is provided with a bumper support column, and an inner cavity is opened inside the bumper support column. The threaded sleeve is movably arranged inside the inner cavity. A support sleeve plate is fitted on the top of the threaded sleeve. Sliding cavities are opened on both sides of the bottom end of the bumper body, and spring rods are slidably arranged inside the sliding cavities.
[0007] In the aforementioned bumper sleeve with an elastic buffer structure, a protective frame is provided at the top of the bumper body, and the support sleeve is movably disposed inside the protective frame.
[0008] In the aforementioned bumper sleeve with an elastic buffer structure, a spring assembly is provided inside the protective frame, and the spring assembly is located between the support sleeve plate and the front end shell of the protective frame.
[0009] In the aforementioned bumper sleeve with an elastic buffer structure, a locking thread cavity is provided inside the threaded sleeve, and a trailer tow bar is installed inside the locking thread cavity.
[0010] In the aforementioned bumper sleeve with an elastic buffer structure, both sides of the bottom end of the threaded sleeve are connected to L-shaped connecting arms, and one end of the L-shaped connecting arm is connected to the tail end of the spring rod.
[0011] In the aforementioned bumper sleeve with an elastic buffer structure, a side groove is provided inside the bumper support column, the L-shaped connecting arm is located inside the side groove, and a rubber pad is provided at the bottom end of the threaded sleeve.
[0012] Compared with the prior art, the advantages of the bumper sleeve with elastic buffer structure of this utility model are:
[0013] This application provides a protective frame at the front end of the threaded sleeve to protect the front end of the threaded sleeve. Inside the protective frame are a spring assembly and a support plate that engages with the threaded sleeve. When the threaded sleeve is subjected to external traction, the support plate compresses the spring assembly, providing elastic buffering force to protect the front end of the threaded sleeve and reduce swaying impact. Additionally, two spring rods are provided at the rear end of the bumper, connected to the rear end of the threaded sleeve via an L-shaped connecting arm. This provides elastic support to the rear end of the threaded sleeve, further reducing the impact force during traction. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the bumper sleeve with an elastic buffer structure according to this utility model.
[0015] Figure 2 This is a schematic diagram of the internal structure of the bumper support column of the bumper sleeve with elastic buffer structure according to this utility model.
[0016] In the diagram, 1. Bumper body; 2. Bumper support column; 3. Protective frame; 4. Support sleeve; 5. Spring assembly; 6. Threaded sleeve; 7. Inner cavity; 8. Spring rod; 9. Locking threaded cavity; 10. Rubber pad; 11. L-shaped connecting arm; 12. Side groove; 13. Sliding cavity. Detailed Implementation
[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0018] A bumper sleeve with an elastic buffer structure includes a bumper body 1, a bumper support column 2, a protective frame 3, and a threaded sleeve 6. The bumper body 1 is provided with a bumper support column 2 at one end. The bumper support column 2 has an inner cavity 7. The threaded sleeve 6 is movably arranged inside the inner cavity 7. A support sleeve plate 4 is fitted on the top of the threaded sleeve 6. Sliding cavities 13 are provided on both sides of the bottom end of the bumper body 1. A spring rod 8 is slidably arranged inside the sliding cavity 13.
[0019] like Figure 1 , Figure 2 As shown, the bumper sleeve of this utility model has an elastic buffer structure. Specifically, a protective frame 3 is provided at the top of the bumper body 1, and a support plate 4 is movably disposed inside the protective frame 3.
[0020] like Figure 1 , Figure 2 As shown, the bumper sleeve of this utility model has an elastic buffer structure. Specifically, a spring assembly 5 is provided inside the protective frame 3, and the spring assembly 5 is located between the support sleeve plate 4 and the front end shell of the protective frame 3.
[0021] like Figure 1 , Figure 2 As shown, the bumper sleeve of this utility model has an elastic buffer structure. Specifically, the threaded sleeve 6 has a locking threaded cavity 9 inside, and a trailer tow bar is installed inside the locking threaded cavity 9.
[0022] like Figure 1 , Figure 2 As shown, the bumper sleeve of this utility model has an elastic buffer structure. Specifically, both sides of the bottom end of the threaded sleeve 6 are connected to L-shaped connecting arms 11, and one end of the L-shaped connecting arm 11 is connected to the tail end of the spring rod 8. One end of the spring rod 8 slides inside the sliding cavity 13 and has a limit mechanism. The other end of the spring rod 8 is connected to the L-shaped connecting arm 11.
[0023] like Figure 1 , Figure 2 As shown, the bumper sleeve of this utility model has an elastic buffer structure. Specifically, the bumper support column 2 has a side groove 12 inside, the L-shaped connecting arm 11 is set inside the side groove 12, and the bottom end of the threaded sleeve 6 is provided with a rubber pad 10.
[0024] This utility model features a bumper sleeve with an elastic buffer structure. A protective frame 3 is provided at the front end of the threaded sleeve 6 to protect the front end of the threaded sleeve 6. Inside the protective frame 3, there is a spring assembly 5 and a support plate 4 that fits onto the threaded sleeve 6. When the threaded sleeve 6 is subjected to external traction force, it can drive the support plate 4 to compress the spring assembly 5, thereby providing elastic buffer force through the spring assembly 5 to protect the front end of the threaded sleeve 6 and reduce the impact force of shaking. At the same time, two spring rods 8 are also provided at the rear end of the bumper. The spring rods 8 are connected to the rear end of the threaded sleeve 6 through an L-shaped connecting arm 11, which can provide elastic support for the rear end of the threaded sleeve 6 and further reduce the impact force during traction.
[0025] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A bumper sleeve with elastic buffering structure, comprising a bumper body (1), a bumper support column (2), a protective frame (3) and a threaded sleeve (6), characterized in that, One end of the bumper body (1) is provided with a bumper support column (2), and the bumper support column (2) has an inner cavity (7) inside. A threaded sleeve (6) is movably arranged inside the inner cavity (7), and a support sleeve plate (4) is fitted on the top of the threaded sleeve (6). Sliding cavities (13) are provided on both sides of the bottom end of the bumper body (1), and a spring rod (8) is slidably arranged inside the sliding cavity (13).
2. The bumper sleeve with elastic cushioning structure according to claim 1, characterized in that, A protective frame (3) is provided at the top of the bumper body (1), and the support sleeve (4) is movably disposed inside the protective frame (3).
3. The bumper sleeve with elastic cushioning structure according to claim 2, characterized in that, The protective frame (3) is provided with a spring assembly (5) inside, and the spring assembly (5) is located between the support sleeve (4) and the front shell of the protective frame (3).
4. The bumper sleeve with elastic cushioning structure according to claim 1, wherein, The threaded sleeve (6) has a locking thread cavity (9) inside, and a trailer towing rod is installed inside the locking thread cavity (9).
5. The bumper sleeve with elastic cushioning structure according to claim 1, wherein, The threaded sleeve (6) has L-shaped connecting arms (11) connected to both sides of its bottom end, and one end of the L-shaped connecting arm (11) is connected to the tail end of the spring rod (8).
6. The bumper sleeve with elastic cushioning structure according to claim 5, characterized in that, The bumper support column (2) has a side groove (12) inside, the L-shaped connecting arm (11) is set inside the side groove (12), and the bottom end of the threaded sleeve (6) is provided with a rubber pad (10).