Collision crumple mechanism for instrument panel cross beam

Abstract

The utility model relates to the technical field of vehicle safety, in particular to an instrument panel cross beam collision crumple mechanism which comprises an instrument panel cross beam and a vehicle body supporting piece installed on the instrument panel cross beam, a crumple mechanism is arranged outside the instrument panel cross beam, and the crumple mechanism comprises a first rigid piece and a second rigid piece. The first rigid piece is composed of a downward concave part and a straight edge part, the second rigid piece is composed of an arc edge part and an upward convex part, and one end of the first rigid piece and one end of the second rigid piece are fixedly installed on one side of the headstock connecting piece after the first rigid piece and the second rigid piece are combined. When a vehicle body is collided, the crumple mechanism is impacted by collision force, the concave part of the first rigid part and the arc edge part of the second rigid part are combined to press the concave pit downwards, and the straight edge part of the first rigid part and the upper convex part of the second rigid part are combined and are bent, so that the crumple mechanism is bent from the position in the process that a vehicle head is collided and transmitted to the instrument panel cross beam; therefore, collision force is prevented from being directly transmitted to the tubular column mounting piece, and a steering wheel on the tubular column support is effectively prevented from hurting a driver.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle safety, in particular to a crash collapse mechanism of an instrument panel cross beam. Background Technique

[0002] The instrument panel cross beam is an important structural component inside the vehicle, located at the rear of the instrument panel, usually connected to both sides of the vehicle. Various instruments, control panels, steering wheel brackets and other internal components are installed on the instrument panel cross beam. The instrument panel cross beam can provide additional protection and support during a collision or accident, reducing the impact of the collision on the passengers inside the vehicle.

[0003] In the prior art, a patent with the publication number of CN213799913U discloses a vehicle and its instrument panel cross beam structure, including: a cross beam assembly bracket, a cross beam body, and two end brackets respectively arranged at both ends in the length direction of the cross beam body; a central control assembly bracket, which has an integrally formed bracket body, a first connecting frame body, a second connecting frame body and a third connecting frame body; the first connecting frame body, the second connecting frame body and the third connecting frame body are all connected to the bracket body. The central control assembly bracket of this structure adopts an integrated structure design. Compared with the previous method of using steel pipe welding, the number of weld points can be reduced, and the overall strength of the central control assembly bracket can be improved. The above structure adopts the method of steel pipe welding to improve the overall strength of the central control assembly bracket. However, due to the large number of steel pipe structures used in itself, when the vehicle collides during driving, a large number of steel pipes will transmit the collision force to the column bracket after the collision, causing the steering wheel on the column bracket to injure the driver. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to propose a crash collapse mechanism of an instrument panel cross beam to solve the problem that when the vehicle collides during driving, a large number of steel pipes transmit the collision force to the column bracket after the collision, causing the steering wheel on the column bracket to injure the driver.

[0005] For the above purposes, the utility model provides a crash collapse mechanism for an instrument panel crossbeam, which includes an instrument panel crossbeam and a body support member installed on the instrument panel crossbeam. The body support member is installed with the body. A collapse mechanism is arranged outside the instrument panel crossbeam. One end of the collapse mechanism is fixedly installed with a front-end connector installed with the front of the vehicle. A column mounting member corresponding to the front-end connector is also installed on the instrument panel crossbeam, and the column mounting member is installed with the steering wheel; the collapse mechanism includes a first rigid member and a second rigid member. The first rigid member is composed of a concave portion and a straight-edge portion, and the second rigid member is composed of an arc-edge portion and a convex portion. One end after the combination of the first rigid member and the second rigid member is fixedly installed on one side of the front-end connector, and the first rigid member and the second rigid member are combined to form a curved shape; multiple groups of first collapse holes are opened in the concave portion of the first rigid member, and a square groove is opened in the straight-edge portion of the first rigid member. An opening is opened in the arc-edge portion of the second rigid member, and a second collapse hole is opened in the convex portion of the second rigid member.

[0006] Preferably, the concave portion of the first rigid member is engaged with the arc-edge portion of the second rigid member, and the straight-edge portion of the first rigid member is engaged with the convex portion of the second rigid member, and they are combined to form a curved shape.

[0007] Preferably, the connection parts of the first rigid member, the second rigid member and the instrument panel crossbeam are all arranged in a trapezoidal structure, and the first rigid member and the second rigid member are integrally formed structures.

[0008] Preferably, at least three groups of the first collapse holes are provided, and the first collapse holes are evenly distributed in the concave portion of the first rigid member.

[0009] Preferably, the square groove corresponds to the second collapse hole, and the first collapse hole corresponds to the opening.

[0010] Preferably, the other end after the combination of the first rigid member and the second rigid member is welded to the outside of the instrument panel crossbeam.

[0011] The beneficial effects of the utility model: When a vehicle body collides, the collision force impacts the collapse mechanism. Inside the collapse mechanism, due to the combination of the concave portion of the first rigid member and the arc-edge portion of the second rigid member pressing down a concave pit, and the combination of the straight-edge portion of the first rigid member and the convex portion of the second rigid member and forming a curved shape, when the front of the vehicle collides and is transmitted to the instrument panel crossbeam, it bends from here, achieving the purpose of weakening the collision impact; at the same time, the first collapse holes, square groove, opening, and second collapse holes inside the collapse mechanism further weaken the impact force after being impacted, thereby preventing the collision force from directly being transmitted to the column mounting member and effectively preventing the steering wheel on the column bracket from causing harm to the driver. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 Schematic diagram of the three-dimensional structure of the whole of the present invention;

[0014] Figure 2 Schematic top view structure diagram of the present invention;

[0015] Figure 3 Schematic diagram of the internal structure of the collapse mechanism of the present invention;

[0016] Figure 4 Schematic side view structure diagram of the present invention.

[0017] The labels in the figure are: 1, instrument panel crossbeam; 2, column mounting part; 3, body support part; 4, front-end connection part; 5, collapse mechanism; 6, first rigid part; 7, second rigid part; 8, first collapse hole; 9, second collapse hole; 10, opening; 11, square groove. Detailed implementation manners

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following further details the present invention in combination with specific embodiments.

[0019] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, an instrument panel crossbeam collision collapse mechanism includes an instrument panel crossbeam 1 and a body support part 3 installed on the instrument panel crossbeam 1. The body support part 3 is installed on the body. A collapse mechanism 5 is arranged outside the instrument panel crossbeam 1. One end of the collapse mechanism 5 is fixedly installed with a front-end connection part 4 installed on the front end. A column mounting part 2 corresponding to the front-end connection part 4 is also installed on the instrument panel crossbeam 1. The column mounting part 2 is installed on the steering wheel; the collapse mechanism 5 includes a first rigid part 6 and a second rigid part 7. The first rigid part 6 is composed of a concave part and a straight edge part. The second rigid part 7 is composed of an arc edge part and a convex part. One end after the combination of the first rigid part 6 and the second rigid part 7 is fixedly installed on one side of the front-end connection part 4, and the combination of the first rigid part 6 and the second rigid part 7 forms a bent shape; a plurality of groups of first collapse holes 8 are opened in the concave part of the first rigid part 6, and a square groove 11 is opened in the straight edge part of the first rigid part 6. An opening 10 is opened in the arc edge part of the second rigid part 7, and a second collapse hole 9 is opened in the convex part of the second rigid part 7.

[0020] In this embodiment, it is mounted to the vehicle body through the vehicle body support member 3, and the column mounting member 2 is mounted to the steering wheel. After the first rigid member 6 and the second rigid member 7 are combined, the front-end connecting member 4 is mounted to the front end. When a collision occurs to the vehicle body, the impact force impacts the crush mechanism 5. Inside the crush mechanism 5, due to the combination of the concave portion of the first rigid member 6 and the arc-shaped portion of the second rigid member 7 pressing down a dent, and the combination of the straight-edge portion of the first rigid member 6 and the convex portion of the second rigid member 7 forming a bent shape, when the front-end collision is transmitted to the instrument panel cross member 1, it is bent from here to achieve the purpose of weakening; at the same time, the first crush hole 8, the square groove 11, the opening 10, and the second crush hole 9 inside the crush mechanism 5 further weaken the impact force after being impacted, thereby preventing the impact force from directly being transmitted to the column mounting member 2 and effectively preventing the steering wheel on the column bracket from causing harm to the driver.

[0021] As an embodiment, as Figure 3 shown, the concave portion of the first rigid member 6 engages with the arc-shaped portion of the second rigid member 7, and the straight-edge portion of the first rigid member 6 engages with the convex portion of the second rigid member 7, combining to form a bent shape.

[0022] In this embodiment, through the combination of the concave portion of the first rigid member 6 and the arc-shaped portion of the second rigid member 7, and the combination of the straight-edge portion of the first rigid member 6 and the convex portion of the second rigid member 7, an overall bent shape is formed. When a collision occurs, the impact force is weakened, and it is bent from the concave portion of the first rigid member 6 and the convex portion of the second rigid member 7 after the collision to avoid continuous collision.

[0023] As an embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, the connections between the first rigid member 6, the second rigid member 7 and the instrument panel cross member 1 are all provided with trapezoidal structures, and the first rigid member 6 and the second rigid member 7 are integrally formed structures.

[0024] In this embodiment, by using the trapezoidal structures at the connections between the first rigid member 6, the second rigid member 7 and the instrument panel cross member 1, the contact area between the first rigid member 6, the second rigid member 7 and the instrument panel cross member 1 is increased, and with the integrally formed structure of the first rigid member 6 and the second rigid member 7, the connection strength of the crush mechanism 5 is further increased.

[0025] As an embodiment, as Figure 4 shown, at least three groups of first crush holes 8 are provided, and the first crush holes 8 are evenly distributed in the concave portion of the first rigid member 6.

[0026] In this embodiment, through multiple groups of first crush holes 8, when the vehicle body is impacted, the concave portions and the arc-shaped portions of the first rigid member 6 and the second rigid member 7 are bent and deformed through the multiple groups of first crush holes 8 and the opening 10, so as to partially weaken the impact force of the collision.

[0027] As an implementation manner, as Figure 4 shown, the square groove 11 corresponds to the second collapse hole 9, and the first collapse hole 8 corresponds to the opening 10.

[0028] In this implementation manner, by making the first collapse hole 8 correspond to the opening 10, the impact force of the collision first passes through the concave parts and arc edges of the first rigid member 6 and the second rigid member 7, passes through the first collapse hole 8 and the opening 10, so that the impact force of the collision is partially weakened, and continues to impact and deform to the straight edge parts and convex parts of the first rigid member 6 and the second rigid member 7, and the square groove 11 and the second collapse hole 9, and is bent and deformed again to achieve the effect of offsetting the impact force of the collision.

[0029] As an implementation manner, as Figure 2 shown, the other end after the combination of the first rigid member 6 and the second rigid member 7 is welded to the outside of the instrument panel cross member 1.

[0030] In this implementation manner, by connecting one end of the first rigid member 6 and the second rigid member 7 to the front-end connecting member 4 and welding the other end to the instrument panel cross member 1, the overall structural strength is increased.

[0031] Working principle: When in use, it is installed with the vehicle body through the vehicle body support member 3, installed with the steering wheel through the column mounting member 2, after the first rigid member 6 and the second rigid member 7 are combined, the front-end connecting member 4 is installed with the front end. When a collision occurs to the vehicle body, the impact force impacts the collapse mechanism 5. Inside the collapse mechanism 5, due to the combination of the concave part of the first rigid member 6 and the arc edge part of the second rigid member 7 pressing down the concave pit, and the combination of the straight edge part of the first rigid member 6 and the convex part of the second rigid member 7 and forming a bent shape, when the front-end collision is transmitted to the instrument panel cross member 1, it is bent from here to achieve the weakening purpose; at the same time, by making the first collapse hole 8 correspond to the opening 10, the impact force of the collision first passes through the concave parts and arc edges of the first rigid member 6 and the second rigid member 7, passes through the first collapse hole 8 and the opening 10, so that the impact force of the collision is partially weakened, and continues to impact and deform to the straight edge parts and convex parts of the first rigid member 6 and the second rigid member 7, and the internal square groove 11 and the second collapse hole 9, and is bent and deformed again to achieve the effect of offsetting the impact force of the collision, thereby preventing the impact force from being directly transmitted to the column mounting member 2 and effectively preventing the steering wheel on the column mounting member 2 from causing harm to the driver.

[0032] Those of ordinary skill in the art should understand that: The discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0033] The present utility model aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An instrument panel crossbeam collision collapse mechanism, comprising an instrument panel crossbeam (1) and a vehicle body support member (3) mounted on the instrument panel crossbeam (1), the vehicle body support member (3) being mounted to the vehicle body, characterized in that, A crashworthy mechanism (5) is provided outside the instrument panel crossbeam (1). One end of the crashworthy mechanism (5) is fixedly installed with a vehicle head connecting piece (4) connected to the vehicle head. A column mounting piece (2) corresponding to the vehicle head connecting piece (4) is also installed on the instrument panel crossbeam (1), and the column mounting piece (2) is mounted with the steering wheel; the crashworthy mechanism (5) includes a first rigid member (6) and a second rigid member (7). The first rigid member (6) consists of a concave portion and a straight edge portion, and the second rigid member (7) consists of an arc edge portion and a convex portion. One end after the combination of the first rigid member (6) and the second rigid member (7) is fixedly installed on one side of the vehicle head connecting piece (4), and the first rigid member (6) and the second rigid member (7) are combined to form a curved shape; a plurality of groups of first crash holes (8) are formed in the concave portion of the first rigid member (6), and a square groove (11) is formed in the straight edge portion of the first rigid member (6). An opening (10) is formed in the arc edge portion of the second rigid member (7), and a second crash hole (9) is formed in the convex portion of the second rigid member (7).

2. The dashboard crossbeam collision collapse mechanism according to claim 1, characterized in that The concave portion of the first rigid member (6) is engaged with the arc edge portion of the second rigid member (7), and the straight edge portion of the first rigid member (6) is engaged with the convex portion of the second rigid member (7).

3. The instrument panel crossbeam collision collapse mechanism according to claim 1, characterized in that The connections between the first rigid member (6), the second rigid member (7) and the instrument panel crossbeam (1) are all provided with trapezoidal structures, and the first rigid member (6) and the second rigid member (7) are of an integrally formed structure.

4. The dashboard crossbeam collision collapse mechanism according to claim 1, characterized in that, At least three groups of the first crash holes (8) are provided, and the first crash holes (8) are evenly distributed in the concave portion of the first rigid member (6).

5. The instrument panel crossbeam collision collapse mechanism according to claim 1, wherein The square groove (11) corresponds to the second crash hole (9), and the first crash hole (8) corresponds to the opening (10).

6. The dashboard crossbeam collision collapse mechanism according to claim 1, characterized in that, The other end after the combination of the first rigid member (6) and the second rigid member (7) is welded to the outside of the instrument panel crossbeam (1).

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