Shock-resistant automobile bumper

Abstract

The utility model discloses an anti-impact automobile bumper relates to automobile spare part technical field, including connecting plate, piston cylinder, second bumper and stopper, connecting plate four ends are provided with mounting hole, connecting plate four end mounting hole is used for connecting with the frame, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder, connecting plate one side is provided with piston cylinder. According to the automobile bumper, due to the fact that split type work is adopted, when the automobile bumper is impacted, the first bumper body and the second bumper body can be stressed independently, when only the first bumper body is impacted, the second bumper body cannot generate stress response, and vice versa. By means of the design, when a single bumper is impacted and deforms, the other bumper can keep a complete structure and does not deform, and therefore during maintenance and replacement, only the damaged bumper needs to be replaced, the whole bumper system does not need to be replaced, and the maintenance cost is remarkably reduced.

Description

Technical Field

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

[0002] A car bumper is a component installed at the front and rear of a car, usually made of sturdy materials. Its main purpose is to reduce the damage to the vehicle body, passengers, and pedestrians in the event of a collision. A search revealed a Chinese patent publication number CN202806648U that discloses a car bumper. Although the bumper's baffle and fixed bracket are connected by an elastic buffer device, and an elastic buffer layer is filled between the baffle and the fixed bracket, which can effectively reduce the impact pressure from the outside and improve the bumper's impact resistance, the bumper adopts a one-piece structure. This means that the bumper will deform after reaching its compressive strength limit, requiring the entire bumper to be replaced, resulting in high costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an impact-resistant car bumper, which solves the problem mentioned in the background art that existing car bumpers need to be completely replaced after being deformed by an impact, resulting in high replacement costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant car bumper, comprising a connecting plate, a piston cylinder, a second bumper, and a limiting block. The connecting plate has mounting holes at four ends for connection to a vehicle frame. A piston cylinder is located on one side of the connecting plate and is welded to the connecting plate. A piston rod is located inside one end of the piston cylinder, and one end of the piston rod slides in contact with the inner wall of the piston cylinder. Multiple piston rods are provided, and springs are fitted around the piston rods. The piston rods are bolted to a first bumper and a second bumper, respectively. A side bumper is bolted to one end of both the first and second bumpers.

[0005] Preferably, a buffer block is provided at one end of the piston cylinder. The buffer block is made of rubber and has a through hole inside. When the piston rod is pushed by an impact force, it will eventually contact the buffer block. The rubber material can effectively absorb and disperse the impact force at the moment of contact, reducing the direct impact of the impact on the bumper structure, thereby protecting the bumper and related components from serious damage.

[0006] Preferably, an exhaust hole is provided on one end surface of the piston cylinder, and the exhaust hole is connected to the inside of the piston cylinder. A groove is provided inside the piston cylinder near the end of the buffer block. The presence of the exhaust hole allows air to flow through the hole during the impact process, thereby generating a certain airflow resistance when the buffer block contacts the piston rod, further slowing down the movement speed of the piston rod and enhancing the buffering effect.

[0007] Preferably, a limit block is provided on one side of the second bumper, and the second bumper is slidably connected to the first bumper through the limit block. The limit block can effectively limit the position of the second bumper during the sliding process and prevent it from excessive displacement or deviation when it is hit.

[0008] Preferably, the limiting block has a T-shaped cross-section, and the shape of the limiting block matches the shape of the groove on one side of the first bumper. The T-shaped limiting block matches the shape of the groove on one side of the first bumper. This close fit design allows the limiting block to be firmly embedded in the groove, further enhancing the connection stability between the second bumper and the first bumper.

[0009] This invention provides an impact-resistant car bumper. It has the following beneficial effects:

[0010] (1) The impact-resistant car bumper adopts a split design. When it is impacted, the first bumper and the second bumper can bear the force independently. When only the first bumper is impacted, the second bumper will not be impacted and vice versa. This design allows the other bumper to maintain its structural integrity and not be deformed when a single bumper is impacted and deformed. Therefore, when repairing or replacing, only the damaged bumper needs to be replaced, and the entire bumper system does not need to be replaced, which significantly reduces the repair cost.

[0011] (2) When the first bumper and the second bumper are impacted, the impact force will be buffered by the inner spring. At the same time, the piston rod will be pushed in the piston cylinder to push the piston rod. This allows the air inside the piston cylinder to be quickly pushed out from the exhaust port. Since the exhaust port has a small diameter, the piston rod can generate resistance during the sliding process. The resistance can further buffer the impact force. When the piston rod is pushed to one end of the piston cylinder, it will contact the buffer block and then perform a third buffering through the buffer slider. Through multiple buffering of impact force, the impact resistance of the car bumper can be improved.

[0012] This solves the problem that existing car bumpers need to be completely replaced after being deformed in an impact, resulting in high replacement costs. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the spring structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the piston cylinder of this utility model;

[0016] Figure 4 This is a schematic diagram of the limiting block structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the piston cylinder structure of this utility model.

[0018] In the diagram, 1. Connecting plate; 2. Mounting hole; 3. Piston cylinder; 4. Piston rod; 5. First bumper;

[0019] 6. Second bumper; 7. Side bumper; 8. Spring; 9. Buffer block; 10. Exhaust vent; 11. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] Example 1, please refer to Figure 1-5 This utility model provides a technical solution: an impact-resistant car bumper, including a connecting plate 1, a piston cylinder 3, a second bumper 6, and a limiting block 11. The connecting plate 1 has mounting holes 2 at its four ends for connection to the vehicle frame. A piston cylinder 3 is provided on one side of the connecting plate 1 and is welded to the connecting plate 1. A piston rod 4 is provided inside one end of the piston cylinder 3 and slides against the inner wall of the piston cylinder 3. Multiple piston rods 4 are provided, and springs 8 are fitted on the outside of the piston rods 4. The piston rods 4 are respectively bolted to the first bumper 5 and the second bumper 6. A side bumper 7 is bolted to one end of both the first bumper 5 and the second bumper 6. Because this car bumper adopts a split design, the first bumper 5 and the second bumper 6 are subjected to force separately when impacted. When only the first bumper is impacted, the second bumper 6 will not be subjected to force. Therefore, when only one bumper is impacted and deformed, the other bumper will not deform. Thus, only one bumper needs to be replaced, which greatly reduces the replacement and maintenance cost.

[0022] Example 2: This utility model provides a technical solution: an impact-resistant car bumper, wherein a buffer block 9 is provided at one end of the piston cylinder 3, the buffer block 9 is made of rubber, and a through hole is opened inside the buffer block 9; an exhaust hole 10 is opened on one end surface of the piston cylinder 3, and the exhaust hole 10 communicates with the inside of the piston cylinder 3, and a groove is opened at one end of the piston cylinder 3 near the buffer block 9; a limiting block 11 is provided on one side of the second bumper 6, and the second bumper 6 is slidably connected to the first bumper 5 through the limiting block 11; the limiting block 11 has a T-shaped cross-section, and the shape of the limiting block 11 is similar to that of the first bumper 5. The groove on one side matches the shape of the bumper. When the first bumper and the second bumper are impacted, the inner spring will buffer the impact force. At the same time, it will push the piston rod to the piston cylinder, allowing the air inside the piston cylinder to be quickly discharged from the exhaust port. Because the exhaust port has a small diameter, the piston rod can generate resistance during the sliding process. This resistance can further buffer the impact force. When the piston rod is pushed to one end of the piston cylinder, it will contact the buffer block, and then the buffer slider will provide a third buffer. Through multiple buffering of impact force, the impact resistance of the car bumper can be improved.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impact-resistant car bumper, characterized in that: The system includes a connecting plate (1), a piston cylinder (3), a second bumper (6), and a limiting block (11). The connecting plate (1) has mounting holes (2) at all four ends. The mounting holes (2) at all four ends of the connecting plate (1) are used to connect to the vehicle frame. A piston cylinder (3) is provided on one side of the connecting plate (1). The piston cylinder (3) is welded to the connecting plate (1). A piston rod (4) is provided inside one end of the piston cylinder (3). One end of the piston rod (4) slides in contact with the inner wall of the piston cylinder (3). Multiple piston rods (4) are provided, and springs (8) are fitted on the outside of the piston rods (4). The piston rods (4) are respectively bolted to the first bumper (5) and the second bumper (6). A side bumper (7) is bolted to one end of both the first bumper (5) and the second bumper (6).

2. The impact-resistant car bumper according to claim 1, characterized in that: A buffer block (9) is provided at one end of the piston cylinder (3). The buffer block (9) is made of rubber and has a through hole inside.

3. The impact-resistant car bumper according to claim 1, characterized in that: The piston cylinder (3) has an exhaust hole (10) on one end surface, and the exhaust hole (10) is connected to the inside of the piston cylinder (3). The piston cylinder (3) has a groove on one end near the buffer block (9).

4. The impact-resistant car bumper according to claim 1, characterized in that: A limiting block (11) is provided on one side of the second bumper (6), and the second bumper (6) is slidably connected to the first bumper (5) through the limiting block (11).

5. The impact-resistant car bumper according to claim 1, characterized in that: The limiting block (11) has a T-shaped cross section, and the shape of the limiting block (11) matches the shape of the groove on one side of the first bumper (5).

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