CN211995861U - A longitudinal beam rear end structure and its vehicle for dealing with RCAR rear collision - Google Patents

Abstract

The utility model relates to a longeron rear end structure that bumps behind reply RCAR, including longeron, be fixed in the reinforcing plate of longeron inner wall end, be fixed in the mounting panel on the reinforcing plate, install in the trailer tubular column on the mounting panel, with the flange board that the longeron end is connected and with the energy-absorbing box that the flange board is connected; the trailer pipe column is characterized in that through holes are formed in the flange plate, the trailer pipe column is partially located inside the longitudinal beam, and the trailer pipe column partially extends out of the longitudinal beam through the through holes. Correspondingly, a vehicle based on the structure is also provided. The utility model provides a longeron rear end structure that bumps behind reply RCAR because the trailer tubular column install in the end of longeron, the inside trailer tubular column that need not to install of energy-absorbing box, when bumping after taking place, the energy-absorbing box can fully conquassation energy-absorbing, and the longeron end is consolidated by reinforcing plate and mounting panel, and intensity improves, prevents that the longeron end from warping.

Description

A longitudinal beam rear end structure and its vehicle for dealing with RCAR rear collision

technical field

The utility model relates to the technical field of automobile equipment, in particular to a rear end structure of a longitudinal beam and a vehicle thereof for coping with the rear collision of an RCAR.

Background technique

In the RCAR (Repair Research Association) low-speed collision condition, the focus is on the maintenance economy of the vehicle after a low-speed collision, while the maintenance cost of the longitudinal beam is high and the maintenance time is long, which has a greater impact on the maintenance economy rating. In low-speed collisions, ensure that the longitudinal beams are not deformed.

The existing trailer column is welded inside the energy-absorbing box. In the process of rear collision, due to the high hardness of the trailer column, the sufficient energy absorption of the energy-absorbing box will be affected, and the stress will be easily transmitted to the longitudinal direction. beam, resulting in deformation of the stringer.

On the other hand, at present, in order to facilitate assembly, a raised structure is provided at the end of the longitudinal beam. When a rear collision occurs, stress concentration is likely to occur, resulting in deformation of the end of the longitudinal beam, which does not meet the requirements of RCAR.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a rear end structure of the longitudinal beam to deal with the rear collision of the RCAR, which realizes the sufficient energy absorption of the energy absorbing box and ensures that the rear end of the longitudinal beam does not deform when the rear collision occurs.

The technical problem to be solved by the utility model is also to provide a vehicle, which can ensure that the longitudinal beam is not deformed when the vehicle collides, and saves the maintenance cost.

In order to solve the above-mentioned technical problems, the utility model provides a rear end structure of a longitudinal beam for dealing with rear collision of an RCAR, comprising a longitudinal beam, a reinforcing plate fixed on the end of the inner wall of the longitudinal beam, a mounting plate fixed on the A trailer pipe column on the mounting plate, a flange plate connected with the end of the longitudinal beam, and an energy-absorbing box connected with the flange plate;

The flange plate is provided with a through hole, and the trailer pipe column is partially located inside the longitudinal beam, and part of it extends out of the longitudinal beam through the through hole.

Preferably, the reinforcing plate is an integral structure, which includes a pipe string installation area and a welding area;

the shape and size of the pipe string mounting area match the shape and size of the trailer pipe string;

The welding area is in contact with the inner wall of the end of the longitudinal beam, and is welded with the inner wall of the end of the longitudinal beam.

Preferably, the mounting plate is an integral structure, including a mounting portion and a welding portion, the trailer pipe string is welded inside the mounting portion, and its shape and size match those of the trailer pipe string;

The welding part matches the shape and size of the welding area, and is welded together.

Preferably, the mounting portion cooperates with the pipe string mounting area and covers the surface of the trailer pipe string.

Preferably, the longitudinal beam is in the form of a smooth shell structure, and an accommodating cavity is provided inside the longitudinal beam.

Preferably, two-thirds of the length of the trailer column is embedded in the accommodating cavity of the longitudinal beam, and the remaining one-third extends out of the accommodating cavity through the through hole.

A vehicle includes the rear end structure of the longitudinal beam for coping with the rear collision of the RCAR.

Implementing the present utility model has the following beneficial effects:

1. The rear end structure of the longitudinal beam to deal with the rear collision of the RCAR provided by the present utility model, because the trailer pipe column is installed at the end of the longitudinal beam, there is no need to install the trailer pipe column inside the energy-absorbing box, and the energy-absorbing box can fully Crush energy absorption, and the end of the longitudinal beam is reinforced by the reinforcing plate and the installation plate, the strength is improved, and the deformation of the end of the longitudinal beam is prevented.

2. The vehicle provided by the utility model can prevent the deformation of the longitudinal beam and save the maintenance cost of the vehicle by setting the rear end structure of the longitudinal beam in response to the rear collision of the RCAR.

3. The rear end structure of the longitudinal beam provided by the utility model to deal with the rear collision of the RCAR, the smooth design of the end of the longitudinal beam, disperses the stress on the end of the longitudinal beam during the collision, prevents local deformation, ensures that the longitudinal beam will not be deformed when it is hit after the rear, and saves money maintenance costs.

Description of drawings

Fig. 1 is the structural representation of the rear end structure of the longitudinal beam that responds to the rear collision of the RCAR of the present invention;

Figure 2 is an exploded view of the reinforcement plate, the mounting plate and the trailer column of the rear end structure of the longitudinal beam that responds to the rear collision of the RCAR;

Fig. 3 is the structural schematic diagram of another perspective of the rear end structure of the longitudinal beam for dealing with the rear collision of the RCAR of the present invention;

4 is a schematic diagram of the assembly structure of the rear end structure of the longitudinal beam for responding to the rear collision of the RCAR of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below with reference to the accompanying drawings. Only this statement, the orientation words of the present utility model in the text, such as up, down, left, right, front, rear, inside, outside, etc., are only based on the accompanying drawings of the present utility model, and they are not intended to affect the present utility model. The new type of specific restrictions.

As shown in FIGS. 1 to 4 , a rear end structure of a longitudinal beam for responding to an RCAR rear collision of the present invention includes a longitudinal beam 1 , a reinforcing plate 2 fixed to the end of the inner wall of the longitudinal beam 1 , and a reinforcing plate 2 fixed to the reinforcing plate 2 The mounting plate 3 on the upper side, the trailer pipe column 4 mounted on the mounting plate 3, the flange plate 5 connected with the end of the longitudinal beam 1, and the energy absorbing box 6 connected with the flange plate 5;

The flange plate 5 is provided with a through hole, and the trailer column 4 is partially located inside the longitudinal beam 1 , and partially extends out of the longitudinal beam 1 through the through hole.

The longitudinal beam 1 has a smooth shell structure, and an accommodating cavity is provided inside it, which is convenient for accommodating the reinforcing plate 2, the mounting plate 3 and the trailer column 4. The ends of the longitudinal beam 1 are not provided with protrusions. It is connected with the flange plate 5 to realize the connection with the flange plate 5 and at the same time eliminate the stress concentration of the longitudinal beam 1 and prevent the stress from being too large, causing the longitudinal beam 1 to deform, making the longitudinal beam 1 deform. It meets RCAR's rear-collision requirements.

The reinforcing plate 2 is used to cooperate with the mounting plate 3 to realize the fixing of the trailer column 4 , and is welded to the end of the inner wall of the longitudinal beam 1 , and is used for fixing the trailer column 4 while strengthening the trailer column 4 . The strength of the end of the longitudinal beam 1 reduces the impact force received by the longitudinal beam, thereby effectively protecting the end of the longitudinal beam 1 from deformation.

As shown in FIG. 2 , specifically, the reinforcing plate 2 is an integral structure, which includes a pipe string mounting area 21 and a welding area 22 . The shape and size of the pipe string mounting area 21 are the same as the shape of the trailer pipe string 4 . and match the size to assist in securing the trailer column 4 . The welding area 22 is attached to the inner wall of the end of the longitudinal beam 1 , and is welded with the inner wall of the end of the longitudinal beam 1 , so as to enhance the strength of the longitudinal beam 1 .

The mounting plate 3 is fixed on the reinforcing plate 2, which is used to fix and install the trailer column 4, which is an integral structure, including a mounting part 31 and a welding part 32, and the trailer column 4 is welded to the Inside the mounting portion 31 , its shape and size match the shape and size of the trailer pipe string 4 , and the mounting portion 31 cooperates with the pipe string mounting area 21 to cover the trailer pipe string 4 . The shape and size of the welding portion 32 and the welding area 22 match, and are welded together, so as to realize the fixed installation between the mounting plate 3 and the reinforcing plate 2 .

The trailer column 4 is used for a trailer, which is fixed on the mounting plate 3, and partially extends into the accommodating cavity of the longitudinal beam 1, and partially protrudes out of the accommodating cavity. Two-thirds of the length of the trailer column 4 is embedded in the accommodating cavity of the longitudinal beam 1 , and the remaining one-third extends out of the accommodating cavity through the through hole.

The flange plate 5 and the end of the longitudinal beam 1 are welded to each other, and are provided with through holes. The trailer column 4 extends out of the accommodating cavity through the through holes and is exposed, which is convenient for towing. .

The energy-absorbing box 6 is connected with the flange plate 5, and is used for crushing and absorbing energy when the vehicle collides, preventing the deformation of the longitudinal beam and reducing the maintenance cost.

In the rear end structure of the longitudinal beam provided by the present invention to cope with the rear collision of the RCAR, since the trailer column 4 is installed at the end of the longitudinal beam 1, there is no need to install the trailer column 4 inside the energy absorbing box 6. In the event of a rear collision, the energy absorbing box 6. It can fully crush and absorb energy, and the end of the longitudinal beam 1 is reinforced by the reinforcing plate 2 and the mounting plate 3, so that the strength is improved, and the deformation of the end of the longitudinal beam 1 is prevented. On the other hand, the smooth design of the end of the longitudinal beam 1 disperses the stress on the end of the longitudinal beam 1 during collision, prevents local deformation, ensures that the longitudinal beam 1 will not deform when it collides in the rear, and saves maintenance costs.

Correspondingly, the present invention also provides a vehicle, including the above-mentioned rear end structure of the longitudinal beam for responding to the rear collision of the RCAR. The arrangement of the structure can prevent the deformation of the longitudinal beam when the vehicle is in a rear collision, and save the maintenance cost of the vehicle.

The above is the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made. These improvements and modifications It is also regarded as the protection scope of the present invention.

Claims (7)

1. A longitudinal beam rear end structure for dealing with RCAR rear collision, characterized in that it comprises a longitudinal beam, a reinforcing plate fixed on the end of the inner wall of the longitudinal beam, a mounting plate fixed on the reinforcing plate, and a mounting plate mounted on the mounting plate. The trailer pipe column on the upper part, the flange plate connected with the end of the longitudinal beam, and the energy absorption box connected with the flange plate; The flange plate is provided with a through hole, and the trailer pipe column is partially located inside the longitudinal beam, and part of it extends out of the longitudinal beam through the through hole. 2. The longitudinal beam rear end structure for dealing with rear collision of RCAR as claimed in claim 1, wherein the reinforcing plate is an integral structure, which comprises a pipe string installation area and a welding area; the shape and size of the pipe string mounting area match the shape and size of the trailer pipe string; The welding area is in contact with the inner wall of the end of the longitudinal beam, and is welded with the inner wall of the end of the longitudinal beam. 3. The rear end structure of the longitudinal beam for responding to the rear collision of the RCAR according to claim 2, wherein the mounting plate is an integral structure, comprising a mounting portion and a welding portion, and the trailer pipe column is welded inside the mounting portion, its shape and size match the shape and size of said trailer mast; The welding part matches the shape and size of the welding area, and is welded together. 4 . The rear end structure of the longitudinal beam for responding to a rear collision of RCAR according to claim 3 , wherein the mounting portion cooperates with the pipe string mounting area and covers the surface of the trailer pipe string. 5 . 5 . The rear end structure of the longitudinal beam for responding to the rear collision of the RCAR according to claim 1 , wherein the longitudinal beam is in the form of a smooth shell structure, and an accommodating cavity is provided inside the longitudinal beam. 6 . 6. The rear end structure of the longitudinal beam for dealing with rear collision of RCAR as claimed in claim 5, characterized in that, two thirds of the length of the trailer column are embedded in the accommodating cavity of the longitudinal beam, and the remaining one third is embedded in the accommodating cavity of the longitudinal beam The through hole protrudes out of the accommodating cavity. 7. A vehicle, characterized in that it comprises the rear end structure of the longitudinal beam for coping with an RCAR rear collision according to any one of claims 1-6.

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