Protective device for front lower part of long headstock

Abstract

The utility model relates to a protective device for the front lower part of a long headstock, which comprises an anti-collision cross beam, a diagonal bracing beam and supports, the supports comprise a left support and a right support, the left support and the right support are symmetrically arranged on the same side of the middle of the anti-collision cross beam, and reinforcing plates are arranged at the joints of the left support and the anti-collision cross beam and the right support and are triangular reinforcing plates. The arc edge of the triangular reinforcing plate is attached to the anti-collision cross beam, and the linear bottom edge of the triangular reinforcing plate is connected with the left support or the right support. Inclined supporting beams are arranged on the same side of the end part of the anti-collision cross beam, and the anti-collision cross beam is connected with a frame or a frame front end accessory through a bracket and the inclined supporting beams; a triangular stable structure is formed by the anti-collision cross beam, the inclined supporting beam and / or the front-end accessories of the frame, and when front collision occurs, stress is transmitted to the frame or the front-end accessories of the frame through the support. When oblique or lateral collision occurs, stress is transmitted to the frame or the frame front end accessory through the inclined supporting beam and the support together, stress is reasonable, and on the premise that the stable structure is met, safety of pedestrians and personnel in the vehicle is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of commercial vehicle safety protection, in particular to a front lower protection device for a long-head vehicle. Background Art

[0002] Commercial vehicles, especially heavy trucks, are mainly flat-head vehicles, but long-head vehicles have gradually become one of the choices of many drivers due to the fuel consumption advantage brought by the streamlined head and the wider field of vision.

[0003] The front lower protection device is an important component for the collision safety of commercial vehicles, which can prevent small vehicles from being involved in the front lower part of commercial vehicles during collision accidents. However, there are still deficiencies in the design of the collision performance of the front lower protection device for commercial vehicles in China. Most of the front lower protection devices are just a steel plate or a hard plastic plate, which are simply processed and installed at the front end of commercial vehicles, resulting in the direct deformation and damage of the front lower protection device during collision, and even damaging the vehicle frame or front-end accessories. At the same time, the energy absorption effect is poor, and the safety protection function is not effectively exerted. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a front lower protection device for a long-head vehicle aiming at the deficiencies of the prior art. The impact load is buffered and absorbed by a reinforcing plate made of aluminum alloy and an aluminum anti-collision beam, and the safety of pedestrians and vehicle occupants is protected on the premise of meeting the stable structure.

[0005] The utility model is realized by adopting the following technical scheme:

[0006] A front lower protection device for a long-head vehicle, comprising an anti-collision beam, a diagonal support beam and a bracket. The bracket includes a left bracket and a right bracket. The left bracket and the right bracket are symmetrically arranged on the same side of the middle part of the anti-collision beam. Reinforcing plates are arranged at the connection positions of the left bracket and the right bracket and the anti-collision beam. The reinforcing plates are triangular reinforcing plates. The arc sides of the triangular reinforcing plates are attached to the anti-collision beam, and the straight bottom edges of the triangular reinforcing plates are connected to the left bracket or the right bracket. The diagonal support beam is arranged on the same side of the end of the anti-collision beam. The anti-collision beam is connected to the vehicle frame or the front-end accessories of the vehicle frame through the bracket and the diagonal support beam.

[0007] Further, one end of the diagonal support beam is provided with a connecting plate, the connecting plate is connected to the anti-collision beam, and the other end of the diagonal support beam is provided with a diagonal support beam mounting plate, and the diagonal support beam mounting plate is connected to the vehicle frame.

[0008] Further, the diagonal support beam includes a left diagonal support beam and a right diagonal support beam. The left diagonal support beam and the right diagonal support beam are symmetrically arranged on the same side of the end of the anti-collision beam.

[0009] Further, the left bracket and the right bracket are both provided with circular weight-reducing holes.

[0010] Furthermore, the diagonal bracing beam is rectangular.

[0011] Furthermore, a plurality of reinforcing ribs are arranged in parallel in the reinforcing plate.

[0012] Furthermore, the reinforcing plate and the anti-collision beam are both made of aluminum alloy.

[0013] Furthermore, two layers of reinforcing partitions are arranged in the anti-collision beam, and the cross-section of the anti-collision beam is in the shape of a Chinese character "目".

[0014] Furthermore, the middle portion of the anti-collision beam is a straight line segment, and both ends are arc segments.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. The anti-collision beam, diagonal bracing beam and the frame or the front end of the frame form a triangular stable structure. When encountering a frontal collision, the force is transmitted to the frame or the front end of the frame through the bracket; when encountering an oblique or lateral collision, the diagonal bracing beam and the bracket jointly transmit the force to the frame or the front end of the frame. The force is reasonable, and the safety of pedestrians and occupants is protected under the premise of meeting the stable structure;

[0017] 2. The anti-collision beam and reinforcement plate are made of aluminum alloy to meet the requirements of lightweighting of the whole vehicle;

[0018] 3. The reinforcing plate is a triangular reinforcing plate, which is hollow inside and has a number of reinforcing ribs arranged in parallel, which not only meets the lightweight design but also improves the structural hardness and rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the reinforcing plate in the utility model;

[0021] Figure 3 It is a cross-sectional view of the anti-collision beam in the utility model.

[0022] Figure annotation:

[0023] 1. Bracket; 11. Left bracket; 12. Right bracket; 2. Reinforcement plate; 21. Reinforcement rib; 3. Anti-collision beam; 4. Connecting plate; 5. Diagonal bracing beam; 51. Left diagonal bracing beam; 52. Right diagonal bracing beam; 6. Diagonal bracing beam mounting plate. DETAILED DESCRIPTION

[0024] To enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] A front lower protection device for a long nose vehicle includes a collision avoidance cross beam 3, a diagonal support beam 5 and a bracket 1. The bracket 1 includes a left bracket 11 and a right bracket 12. The left bracket 11 and the right bracket 12 are symmetrically arranged on the same side of the middle part of the collision avoidance cross beam 3. At the connection of the left bracket 11 and the right bracket 12 to the collision avoidance cross beam 3, there is a reinforcing plate 2. The reinforcing plate 2 is a triangular reinforcing plate. The arc edge of the triangular reinforcing plate fits with the collision avoidance cross beam 3, and the straight bottom edge of the triangular reinforcing plate is connected to the left bracket 11 or the right bracket 12; on the same side of the end of the collision avoidance cross beam 3, there is a diagonal support beam 5. The collision avoidance cross beam 3 is connected to the vehicle frame or the front end accessories of the vehicle frame through the bracket 1 and the diagonal support beam 5.

[0026] The collision avoidance cross beam 3, the diagonal support beam 5 and the vehicle frame or the front end accessories of the vehicle frame form a triangular stable structure. When encountering a frontal impact, the force is transmitted to the vehicle frame or the front end accessories of the vehicle frame through the bracket 1; when encountering an oblique or lateral impact, the force is jointly transmitted to the vehicle frame or the front end accessories of the vehicle frame through the diagonal support beam 5 and the bracket 1. The force is reasonable, and on the premise of meeting the stable structure, the safety of pedestrians and vehicle occupants is protected.

[0027] One end of the diagonal support beam 5 is provided with a connecting plate 4, and the connecting plate 4 is connected to the collision avoidance cross beam 3. The other end of the diagonal support beam 5 is provided with a diagonal support beam mounting plate 6, and the diagonal support beam mounting plate 6 is connected to the vehicle frame or the front end accessories of the vehicle frame.

[0028] The diagonal support beam 5 includes a left diagonal support beam 51 and a right diagonal support beam 52. The left diagonal support beam 51 and the right diagonal support beam 52 are symmetrically arranged on the same side of the end of the collision avoidance cross beam 3.

[0029] Both the left bracket 11 and the right bracket 12 are provided with circular weight reduction holes. By setting the circular weight reduction holes, the weight of the left bracket 11 and the right bracket 12 is reduced, meeting the requirements of vehicle lightweight design.

[0030] The diagonal support beam 5 is rectangular.

[0031] A number of reinforcing ribs 21 are arranged in parallel inside the reinforcing plate 2. The reinforcing plate 2 is a triangular reinforcing plate, which is hollow inside, and a number of reinforcing ribs 21 are arranged in parallel, meeting the lightweight design requirements while improving the structural hardness and stiffness.

[0032] Both the reinforcing plate 2 and the collision avoidance cross beam 3 are made of aluminum alloy material. The collision avoidance cross beam 3 and the reinforcing plate 2 are made of aluminum alloy material, meeting the requirements of the overall vehicle lightweight.

[0033] Two layers of reinforcing partitions are arranged inside the anti-collision beam 3, and the cross section of the anti-collision beam is in the shape of a "mesh". The reinforcing partitions are arranged to enhance the hardness and rigidity of the anti-collision beam 3.

[0034] The middle part of the anti-collision beam 3 is a straight line segment, and both ends are arc segments.

Claims

1. A front lower protection device for a long nose vehicle, characterized in that, It includes a collision avoidance cross beam (3), a diagonal support beam (5) and a bracket (1). The bracket (1) includes a left bracket (11) and a right bracket (12). The left bracket (11) and the right bracket (12) are symmetrically arranged on the same side of the middle part of the collision avoidance cross beam (3). A reinforcing plate (2) is provided at the connection between the left bracket (11) and the right bracket (12) and the collision avoidance cross beam (3). The reinforcing plate (2) is a triangular reinforcing plate. The arc side of the triangular reinforcing plate is attached to the collision avoidance cross beam (3), and the straight bottom edge of the triangular reinforcing plate is connected to the left bracket (11) or the right bracket (12). The diagonal support beam (5) is provided on the same side of the end of the collision avoidance cross beam (3). The collision avoidance cross beam (3) is connected to the vehicle frame or the front end accessories of the vehicle frame through the bracket (1) and the diagonal support beam (5).

2. The front lower protection device with a long nose according to claim 1, wherein, One end of the diagonal support beam (5) is provided with a connecting plate (4), the connecting plate (4) is connected to the collision avoidance cross beam (3), and the other end of the diagonal support beam (5) is provided with a diagonal support beam mounting plate (6), and the diagonal support beam mounting plate (6) is connected to the vehicle frame or the front end accessories of the vehicle frame.

3. The front lower protection device for a long nose vehicle according to claim 2, wherein The diagonal support beam (5) includes a left diagonal support beam (51) and a right diagonal support beam (52). The left diagonal support beam (51) and the right diagonal support beam (52) are symmetrically arranged on the same side of the end of the collision avoidance cross beam (3).

4. The front lower protection device with a long front head according to claim 1, characterized in that, Both the left bracket (11) and the right bracket (12) are provided with circular weight reduction holes.

5. The front lower protection device for a long nose vehicle according to claim 3, characterized in that, The diagonal support beam (5) is rectangular.

6. The front lower protection device for a long nose vehicle according to claim 1, characterized in that, A number of reinforcing ribs (21) are arranged in parallel in the reinforcing plate (2).

7. The front lower protection device for a long nose vehicle according to claim 1, wherein Both the reinforcing plate (2) and the collision avoidance cross beam (3) are made of aluminum alloy material.

8. The front lower protection device for a long nose vehicle according to claim 7, characterized in that, Two layers of reinforcing partitions are provided in the collision avoidance cross beam (3), and the cross section of the collision avoidance cross beam is in the shape of "eye".

9. The front lower protection device with a long front end according to claim 8, characterized in that The middle part of the collision avoidance cross beam (3) is a straight section, and both ends are arc sections.

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