CN202389463U - Direct impact crumpling mechanism for bus - Google Patents

Abstract

The utility model discloses a passenger car frontal collision collapse mechanism, which comprises an anti-collision beam, an energy-absorbing box, a guide plate of the energy-absorbing box, a connecting seat and a frame longitudinal beam; At the outer end of an energy-absorbing box, the inner ends of the two energy-absorbing boxes are fixedly connected to the outer ends of the two frame longitudinal beams through the connecting seat respectively; the guide plate of the energy-absorbing box bridges the anti-collision beam and the connecting seat between and above the crash box. Since the utility model is provided with an energy-absorbing box and an energy-absorbing box guide plate between the anti-collision beam and the connecting seat, the structural design realizes the progressive deformation of the collapse mechanism to absorb the collision energy and reduce the intrusion of the driving area in the event of a passenger car frontal collision To make the body frame structure more reasonable, reduce the risk of damage to the driver and tour guide, and improve the passive safety of the vehicle.

Description

The passenger car is colliding with the crushing mechanism

technical field

The utility model relates to a passenger car component, in particular to a passenger car frontal collision collapse mechanism.

Background technique

At present, there are many researches on the passive safety of passenger cars at home and abroad, mainly including front collision, side collision, offset collision, rear-end collision and pedestrian collision protection, and various regulations have been formulated, but the research on passenger cars mainly focuses on In terms of anti-rollover ability and roof strength of passenger cars, there are relatively few studies on frontal crashes of passenger cars. In the event of a frontal collision, unlike a passenger car, a passenger car can absorb the collision energy through the deformation of the bumper and the engine compartment to reduce occupant injuries. The passenger car mainly relies on the deformation of the front wall to absorb the collision energy, because the front wall is very close to the driver's seat and the guide chair. In the event of a frontal collision, it is easy to cause serious extrusion and deformation to the driving area, encroach on the driving space, and pose a major threat to the life safety of the driver and tour guide.

Utility model content

The purpose of the utility model is to provide a passenger car frontal collision collapse mechanism with high safety.

For achieving the above object, the technical solution of the utility model is:

The utility model relates to a passenger car frontal collision collapse mechanism, which includes an anti-collision beam, an energy-absorbing box, a guide plate of the energy-absorbing box, a connecting seat, a frame longitudinal beam and an anti-collision supporting beam; at two ends of the anti-collision beam An anti-collision support beam is arranged on the inner side of the head, and at the same time, a guide plate of an energy-absorbing box is respectively connected on the left and right symmetrical points of the inner side, and the other end of the guide plate of the energy-absorbing box is fixedly connected to the connecting seat; the connecting seats are fixed respectively. Connected to the two frame longitudinal beams, an energy-absorbing box is arranged below the guide plate of the energy-absorbing box, one end of the energy-absorbing box is fixedly connected connected to the connector.

The utility model also includes a longitudinal beam strengthening box, which is installed in front of the vehicle frame longitudinal beam and above the anti-collision beam.

The guide plate of the energy-absorbing box is an "inverted 7-shaped" component, its tail end is fixedly connected to the anti-collision beam, and its top end is fixedly connected to the connecting seat.

The energy-absorbing box is a rectangular or square hollow member, and its outer wall is provided with at least two transverse induction grooves parallel to each other. The angle range between the center line and the horizontal line of the energy-absorbing box is: -15°~ 27.5°.

The longitudinal beam reinforcement box is a rectangular hollow member, at least one annular groove is provided on its outer side, and four induction holes opposite to the four ends of the longitudinal beam reinforcement box are opened in the annular groove.

The guide plate of the energy-absorbing box and the anti-collision beam are fixedly connected to each other through the first connecting support, and the other end of the guiding plate of the energy-absorbing box is fixedly connected to the connecting plate of the energy-absorbing box through the second connecting support.

The left and right ends of the first connecting support are provided with folded edges along the direction of the anti-collision beam, and the folded edges are fixedly connected with the anti-collision beam.

The connecting seat is a hollow Mitsubishi column member with an inclined plane opening, and its right-angled surface is fixed to the energy-absorbing box and the second support, and the other right-angled surface is fixed to the frame longitudinal beam through the third connecting support. Next, the hollow prism is provided with a number of reinforcing ribs inside, and a number of weight-reducing holes are opened on each connecting end surface.

After adopting the above scheme, since the utility model is mainly composed of the anti-collision beam, the energy-absorbing box, the guide plate of the energy-absorbing box, the connection seat, the frame longitudinal beam and the anti-collision support beam, a The energy-absorbing box and the guide plate of the energy-absorbing box are equipped with a longitudinal beam reinforcement box above the anti-collision beam. Through this reasonable structural layout and optimization of material thickness, the gradual deformation absorption of the crushing mechanism can be realized in the event of a bus frontal collision. Collision energy reduces the amount of intrusion in the driving area, makes the force of the body frame structure more reasonable, reduces the risk of damage to the driver and tour guide, and improves the passive safety of the vehicle.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Description of drawings

Fig. 1 is an axonometric view of the utility model;

Fig. 2 is rear axonometric view of the utility model;

Fig. 3 is a side view of the utility model;

Fig. 4 is the top view of the utility model;

Fig. 5 is the front view of the utility model;

Fig. 6 is a schematic diagram of the tilt angle range of the energy-absorbing box of the present invention.

Detailed ways

As shown in Fig. 1-Fig. 5, the utility model is a passenger car frontal crash mechanism, which includes an anti-collision beam 1, an energy-absorbing box 2, an energy-absorbing box guide plate 3, a connecting seat 6, and a frame longitudinal beam 7 , longitudinal beam reinforcement box 8 and anti-collision support beam 9.

The energy-absorbing box 2 is a rectangular or square hollow member, and its outer wall is provided with at least two induction grooves 21 parallel to each other in the transverse direction.

The guide plate 3 of the energy-absorbing box is an "inverted 7-shaped" component, its tail end is fixed to the anti-collision beam 1 through the first connecting support 31, and the top end is fixed to the connecting seat 6 through the second connecting support 32. Connect; the left and right ends of the first connecting support 31 are provided with a folded edge 311 along the direction of the anti-collision beam, and the folded edge 311 is welded with the anti-collision beam 1 .

The longitudinal beam reinforcement box 8 is a rectangular hollow member, and at least one annular groove 81 is provided on its outer side, and 4 induction holes 81 opposite to the four end points of the longitudinal beam reinforcement box are opened on the annular groove. Hole 82.

The connecting base 6 is a hollow Mitsubishi prism member with an opening on an inclined plane. Its right-angled surface 61 is fixedly connected to the energy-absorbing box 2 and the second support 32. The other right-angled surface 62 is connected to the third connecting support 33. The longitudinal beams 7 of the frame are fixed to each other, and the hollow prism is provided with a number of reinforcing ribs 63 inside, and a number of lightening holes 64 are opened on each connection end surface of the hollow prism. The above-mentioned design can meet the requirements of the connection seat 6 as a whole. Under the premise of rigidity, make the components as light as possible.

The specific assembly relationship is as follows:

The inner sides of the two ends of the anti-collision beam 1 are screwed to the anti-collision support beam 9 and the door pillars (not shown) on both sides by bolts, and at the same time, the first connecting support 31 is respectively passed through the left and right symmetrical points on the inner side. The tail end of the energy absorbing box guide plate 3 is affixed to each other, and the top end of the energy absorbing box guide plate 3 is affixed to the right angle surface 61 of the connecting seat 6 through the second connecting support 32; the two energy absorbing boxes 2 are arranged on The lower part of the energy absorbing box guide plate 3, one end of which is fixedly connected to the energy absorbing box guide plate 3, and is located on the connection surface between the energy absorbing box guide plate 3 and the first connecting support 31, and the other end is fixedly connected to the connecting seat 6 on the right-angled surface 61, and the angle range between the centerline of the energy-absorbing box 2 and the horizontal line is: -15°~27.5° (see Figure 6, set according to the height of the anti-collision beam installation); the connecting seat 6 is screwed to the frame longitudinal beam 7 through the third connecting support 33 .

The longitudinal beam reinforcement box 8 is installed in front of the vehicle frame longitudinal beam 7 and above the inner side of the anti-collision beam 1 through bolt connection.

With the above design, when the front of the bus collides, if the height of the collision object is low, such as a car, etc., the anti-collision beam will first collide and contact, and then transmit its backward impact force to the absorber through the first connecting support. The energy-absorbing box guide plate, because the energy-absorbing box guide plate is an "inverted 7-shaped" component, can ensure that most of the impact force is transmitted along the collapse direction of the energy-absorbing box, and because the inner end of the anti-collision beam is connected with the anti-collision support beam, The anti-collision support beam and the door pillars on both sides are screwed together to form a closed force ring with the door pillars, so that during the collision, the anti-collision beam, the first connecting support, the guide plate of the energy-absorbing box and the energy-absorbing box produce In order to prevent damage and deformation, it absorbs most of the collision energy, while the deformation of the door pillar and frame longitudinal beam is small, which improves the driving safety performance of the bus.

When the height of the object collided by the passenger car is high, such as a rear-end collision between the passenger car and the passenger car, in addition to the above-mentioned buffering and energy-absorbing functions of the anti-collision beam and other components, the longitudinal beam reinforcement box installed on the inner side of the upper part of the anti-collision beam It can also produce cushioning and energy absorption, which can greatly reduce the impact on the longitudinal beam of the frame and reduce its deformation, which can greatly improve the driving safety performance of the bus.

Simultaneously, most of the above-mentioned positive collision and collapse mechanisms are assembled in a screw connection mode, which is convenient for maintenance or replacement of the mechanism when a passenger car is used.

The key point of the utility model is that: an energy-absorbing box and an energy-absorbing box guide plate are set between the anti-collision beam and the connecting seat, and at the same time, a longitudinal beam fixed to the longitudinal beam bracket can be added on the inner side of the upper part of the anti-collision beam. Beam reinforcement box.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited with this, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the content of the specification should still belong to the utility model. Within the scope covered by the utility model patent.

Claims (10)

1. passenger vehicle central collision crumple mechanism, it is characterized in that: it comprises collision prevention girders, energy-absorbing box, energy-absorbing box guide plate, Connection Block, chassis side rail and crashproof support beam; Inboard, two ends in collision prevention girders is provided with a crashproof support beam, connects an energy-absorbing box guide plate respectively on the left-right symmetric point of side within it simultaneously, and the other end of this energy-absorbing box guide plate is fixed on the Connection Block; Described Connection Block is fixed in respectively on two chassis side raiies, below energy-absorbing box guide plate, is provided with an energy-absorbing box, and an end of this energy-absorbing box is fixed in the connecting portion of energy-absorbing box guide plate and collision prevention girders, and its other end is fixed on the Connection Block.

2. passenger vehicle central collision crumple according to claim 1 mechanism, it is characterized in that: it also comprises a longeron strengthen box, this longeron strengthen box is installed in the place ahead of chassis side rail and is positioned at the top of collision prevention girders.

3. passenger vehicle central collision crumple according to claim 1 mechanism is characterized in that: described energy-absorbing box guide plate is " fall 7 types " member, its tail end and collision prevention girders Joint, top and Connection Block Joint.

4. passenger vehicle central collision crumple according to claim 1 mechanism; It is characterized in that: described energy-absorbing box is a hollow member; Its outer wall is provided with the groove of inducing that laterally is parallel to each other more than 2 at least, and the line of centers and the angular range between the horizon of this energy-absorbing box are :-15 ° ~ 27.5 °.

5. passenger vehicle central collision crumple according to claim 4 mechanism, it is characterized in that: described energy-absorbing box is rectangle or square member.

6. passenger vehicle central collision crumple according to claim 2 mechanism, it is characterized in that: described longeron strengthen box is the hollow member of a rectangle, its outside is provided with the annular recess more than at least.

7. passenger vehicle central collision crumple according to claim 6 mechanism is characterized in that: offer 4 relative with four end points of longeron strengthen box holes of inducing on the described annular recess.

8. according to claim 1 or 3 described passenger vehicle central collision crumple mechanisms; It is characterized in that: it is affixed each other that described energy-absorbing box guide plate and collision prevention girders are connected bearing through first, and the other end of energy-absorbing box guide plate connects bearing through second and is fixed on the energy-absorbing box connecting panel.

9. passenger vehicle central collision crumple according to claim 8 mechanism is characterized in that: described first connects the left and right end of bearing is provided with flanging along the collision prevention girders direction, and described flanging and collision prevention girders are affixed each other.

10. passenger vehicle central collision crumple according to claim 1 mechanism; It is characterized in that: described Connection Block is the hollow triangular prism member of an inclined-plane opening; One of which right angle face and energy-absorbing box, second bearing are affixed each other; It is affixed each other with chassis side rail that its another right angle face connects bearing through the 3rd, and described hollow prism inside is provided with some reinforced ribs, on its each connection end face, offers some lightening holes.

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