CN210554647U

CN210554647U - Rear protection reinforcing structure of large truck

Info

Publication number: CN210554647U
Application number: CN201921105640.3U
Authority: CN
Inventors: 蒋友明
Original assignee: Zhejiang Lujieshun Automobile Manufacturing Co ltd
Current assignee: Zhejiang Lujieshun Automobile Manufacturing Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-19
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a rear protection strengthening structure of a large truck aiming at the defect of poor strength of a rear protection structure in the prior art, which comprises a mounting frame fixedly arranged on a vertical beam of a frame, wherein the mounting frame comprises a vertical section and a horizontal section which are mutually vertically and fixedly connected, the vertical section is fixedly connected with the vertical beam of the frame, and a protection beam is vertically and fixedly connected on the horizontal section; and reinforcing plates for preventing the vertical section from being bent are fixedly arranged between the mounting frame and the frame vertical beam as well as between the mounting frame and the carriage vertical beam, and the reinforcing plates and the protective cross beams are respectively positioned on the front side and the rear side of the vertical section. In the scheme, the vertical section is prevented from being bent through the reinforcing plate, so that the overall structural strength of the rear protection structure is enhanced, the impact resistance of the rear protection structure can be improved, and a car is prevented from entering the bottom of the tail end of the truck in a rear-end collision accident. This back protective structure has set up the reinforcing plate that is used for consolidating the mounting bracket, and this reinforcing plate can be used for preventing vertical section bending on the mounting bracket to protective structure's structural strength after promoting.

Description

Rear protection reinforcing structure of large truck

Technical Field

The utility model belongs to the technical field of car anticollision structure, concretely relates to back protection additional strengthening of large truck.

Background

The rear protection structure is generally installed at the rear of a vehicle of a truck and used for preventing a car from entering the bottom of the rear end of the truck when a rear-end collision traffic accident happens, and a cab of the car can be seriously damaged when the car enters the bottom of the tail end of the truck, so that great danger can be caused to a driver, and the protection structure can avoid causing greater injury. Current back protective structure generally all includes mounting bracket and anticollision roof beam, and the mounting bracket generally all is L shape structure, only fix on the frame through the mounting bracket because of the anticollision roof beam, and the mounting bracket passes through the bolt fastening usually on the frame, overall structure intensity is relatively poor, when the freight train is rear-ended by the car, back protective structure receives the striking vertical section bending that leads to the mounting bracket easily, and then probably can make the car that knocks into back continue to bore into freight train tail end bottom, cause bigger injury, and simultaneously, huge impact force also can lead to the bolt fracture, make the mounting bracket lead to the fact the damage with the junction of frame.

Disclosure of Invention

The utility model discloses to the relatively poor drawback of back protective structure intensity among the prior art, provide a back protection additional strengthening of large truck, this back protective structure has set up the reinforcing plate that is used for consolidating the mounting bracket, and this reinforcing plate can be used for preventing vertical section bending on the mounting bracket to promote back protective structure's structural strength.

The invention aims to be realized by the following technical scheme: a rear protection reinforcing structure of a large truck comprises a mounting frame fixedly mounted on a vertical beam of a truck frame, wherein the mounting frame comprises a vertical section and a horizontal section which are mutually perpendicular and fixedly connected, the vertical section and the horizontal section form an L-shaped structure, the vertical section is fixedly connected with the vertical beam of the truck frame, and a protection cross beam is vertically and fixedly connected onto the horizontal section; the utility model discloses a vehicle body bending device, including mounting bracket, frame vertical beam, carriage vertical beam, reinforcing plate, protection crossbeam, side fixedly connected with and the perpendicular board of buckling of self of reinforcing plate towards vertical section, should buckle the front side laminating and the fixed connection of board and vertical section. In the above-mentioned scheme, stop vertical section crooked through the reinforcing plate to the structural strength of reinforcing vertical section also can prevent that the junction of vertical section and frame straight beam from producing and destroying, and then protective structure's overall structure intensity behind the reinforcing can promote protective structure's shock resistance, prevents that the car from boring into freight train tail end bottom in the accident of knocking into back. The bending plate is formed by bending the main body part of the reinforcing plate, the processing is convenient, and the bending direction of the bending plate relative to the reinforcing plate can be determined according to actual requirements.

Preferably, the reinforcing plate is detachably and fixedly connected with the straight beam of the carriage. In some current freight trains, be detachable between its carriage part and the frame part, the position is provided with between the straight roof beam of frame on fixing the straight roof beam in carriage bottom and the frame and is used for absorbing rubber rectangular, and often realize dismantling fixed connection through U-shaped bolt and fixed connection spare between the straight roof beam in carriage and the frame, just can separate carriage and frame after dismantling U-shaped bolt and fixed connection spare, can dismantle fixed connection between reinforcing plate and the straight roof beam in carriage, make the installation of reinforcing plate can not influence the carriage detachable function, and simultaneously, this reinforcing plate is simultaneously with the straight roof beam in frame, the straight roof beam fixed connection in carriage, make the reinforcing plate also have the function of fixed connection spare, fixed connection spare is to the fixed action between the straight roof beam in carriage and the straight roof beam in frame promptly.

Preferably, the reinforcing plate and the carriage straight beam, the reinforcing plate and the frame straight beam and the reinforcing plate and the vertical section are respectively connected in a detachable and fixed mode through bolts, and the outer side face of the carriage straight beam and the outer side face of the frame straight beam are respectively attached to the inner side face of the reinforcing plate. The detachable fixed connection realized by the bolts is very convenient to install and detach.

Preferably, the reinforcing plate is provided with a mounting groove, a U-shaped bolt for fixing the carriage straight beam and the frame straight beam is arranged in the mounting groove, and the reinforcing plate is reinforced by the U-shaped bolt and fixed on the carriage straight beam and the frame straight beam. A plurality of U-shaped bolts are usually arranged between the carriage straight beam and the frame straight beam, the installation positions of the reinforcing plates conflict with the installation positions of the U-shaped bolts easily, the installation of the reinforcing plates cannot be influenced by the arrangement of the installation grooves, and meanwhile, the U-shaped bolts can also play a role in fixing the reinforcing plates.

Preferably, the front side and the rear side of the vertical section and the upper side and the lower side of the horizontal section are respectively fixedly connected with side plates perpendicular to the vertical section, the side plates on the front side of the vertical section are attached to the bending plates on the reinforcing plate, and the side plates on the front side of the vertical section are fixedly connected with the bending plates on the reinforcing plate through bolts. The structural strength of vertical section, horizontal segment can be promoted respectively in the setting of curb plate on the vertical section, the setting of side on the horizontal segment, and then promote the structural strength of mounting bracket, and the curb plate of vertical section front side can increase area of contact with the cooperation of the bending plate on the reinforcing plate, is convenient for install the screw to realize the fixed connection of dismantling between vertical section and the reinforcing plate.

Preferably, a reinforcing bar is fixedly connected between the vertical section and the horizontal section, and the reinforcing plate and the reinforcing bar are respectively positioned at the front side and the rear side of the vertical section. The setting of enhancement strip can promote the structural strength of vertical section and horizontal segment junction, and then promotes the holistic structural strength of mounting bracket.

Preferably, the angle formed by the length direction of the reinforcing bar and the length direction of the horizontal segment is 45 degrees.

Preferably, the reinforcing strip is bent from a sheet material into an L-shaped configuration. The bending resistance and the structural strength of single panel are relatively poor, and the L-shaped structure of buckling into of panel can promote bending resistance and structural strength, and then promotes the bending resistance and the structural strength of enhancement strip, finally promotes the structural strength of junction between vertical section and the horizontal segment.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a setting up of reinforcing plate can promote the anti bending property of vertical section on the mounting bracket, and then promotes the structural strength of mounting bracket, makes mounting bracket, protection crossbeam can bear stronger impact force, and the car bores into the freight train bottom when avoiding freight train and car to take place to knock into the rear-end accident, promotes the security performance. Meanwhile, the installation of the reinforcing plate cannot influence the installation of the U-shaped bolt between the carriage straight beam and the frame straight beam of the truck, and the reinforcing plate can also play a role in fixing the carriage straight beam and the frame straight beam, which is equivalent to the function of fixing the connecting piece and prevents the carriage straight beam and the frame straight beam from sliding relatively.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of a connecting structure of a mounting frame and a protective cross beam;

FIG. 3 is a perspective view of a stiffener;

the labels in the figure are: 1. frame straight beam, 2, mounting bracket, 3, vertical section, 4, horizontal segment, 5, the board of buckling, 6, protection crossbeam, 7, reinforcing plate, 8, curb plate, 9, carriage straight beam, 10, mounting groove, 11, U-shaped bolt, 12, rubber are rectangular, 13, fixed connection spare, 14, connecting strip.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1, fig. 2 and fig. 3, the rear protection reinforcing structure of a large truck comprises a mounting frame 2 fixedly mounted on a vertical beam 1 of a truck frame, wherein the mounting frame 2 comprises a vertical section 3 and a horizontal section 4 which are mutually perpendicular and fixedly connected, and the vertical section 3 and the horizontal section 4 form an L-shaped structure. The vertical section 3 is fixedly connected with a frame straight beam 1 on a frame of the truck, and the horizontal section 4 is vertically and fixedly connected with a protective cross beam 6; fixed being equipped with between mounting bracket 2 and frame straight beam 1, the carriage straight beam 9 and being used for preventing 3 crooked vertical section, reinforcing plate 7, protection crossbeam 6 are located vertical section 3 front and back both sides respectively, reinforcing plate 7 is towards vertical section 3 side fixedly connected with and self vertically bent plate 5, side, horizontal segment 4's the upper and lower side difference fixedly connected with and self vertically curb plate 8 around vertical section 3, the curb plate 8 of vertical section 3 front side and the laminating of 5 bending plates on the reinforcing plate 7, and realize fixed connection through the bolt between the curb plate 8 of vertical section 3 front side and the bending plate 5 on the reinforcing plate 7, and the lateral surface of frame straight beam 1, the lateral surface of frame straight beam 9 respectively with the medial surface laminating of reinforcing plate 7. The reinforcing plate 7 is fixedly connected with the carriage straight beam 9, the reinforcing plate 7 is fixedly connected with the frame straight beam 1, and the reinforcing plate 7 is fixedly connected with the vertical section 3 through bolts. The reinforcing plate 7 is provided with a mounting groove 10, a U-shaped bolt 11 for fixing the carriage straight beam 9 and the frame straight beam 1 is arranged at the position of the mounting groove 10, and meanwhile, the reinforcing plate 7 is reinforced by the U-shaped bolt 11, so that the reinforcing plate 7 is fixed on the carriage straight beam 9 and the frame straight beam 1.

And reinforcing strips 14 are fixedly connected between the vertical section 3 and the horizontal section 4, and the reinforcing plate 7 and the reinforcing strips 14 are respectively positioned at the front side and the rear side of the vertical section 3. The longitudinal direction of the reinforcing strips 14 forms an angle of 45 ° with the longitudinal direction of the horizontal section 4. The reinforcing strips 14 are bent from a sheet of material into an L-shaped configuration. The arrangement of the reinforcing strips 14 can improve the structural strength of the joint of the vertical section 3 and the horizontal section 4.

In the existing truck with a detachable carriage, the carriage part and the frame part are detachable, a rubber strip 12 for shock absorption is arranged between a carriage straight beam 9 fixed at the bottom of the carriage and the frame straight beam 1 on the frame, a U-shaped bolt 11 and a fixed connecting piece 13 are arranged between the carriage straight beam 9 and the frame straight beam 1, the U-shaped bolt 11 can fix and limit the carriage straight beam 9 in four directions of up, down, left and right, so that the carriage straight beam 9 can only move back and forth relative to the frame straight beam 1, the fixed connecting piece 13 is detachably and fixedly connected with the carriage straight beam 9 and the frame straight beam 1 through bolts, the carriage straight beam 9 can be limited in the front and back direction, the carriage straight beam 9 can be fixed on the frame straight beam 1, the carriage can be separated from the frame after the U-shaped bolt 11 and the fixed connecting piece 13 are detached, and the reinforcing plate 7 can be detachably and fixedly connected with the carriage straight beam 9, the function that the carriage can be dismantled can not be influenced in the installation that makes reinforcing plate 7, and simultaneously, this reinforcing plate 7 simultaneously with frame straight beam 1, the straight beam 9 fixed connection in carriage, make reinforcing plate 7 also have the function of fixed connector 13, fixed connector 13 is to the fixed action between frame straight beam 1 and the straight beam 9 in carriage promptly, and the position of reinforcing plate 7 installation need not to install fixed connector 13 in addition, can reduce the installation of fixed connector 13.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The rear protection reinforcing structure of the large truck is characterized by comprising a mounting frame (2) fixedly mounted on a vertical beam (1) of a truck frame, wherein the mounting frame (2) comprises a vertical section (3) and a horizontal section (4) which are vertically and fixedly connected with each other, the vertical section (3) and the horizontal section (4) form an L-shaped structure, the vertical section (3) is fixedly connected with the vertical beam (1) of the truck frame, and a protection cross beam (6) is vertically and fixedly connected to the horizontal section (4); the utility model discloses a folding type vehicle frame, including mounting bracket (2), frame straight beam (1), carriage straight beam (9), reinforcing plate (7) that are used for preventing vertical section (3) crooked are fixed to be equipped with between mounting bracket (2) and frame straight beam (1), carriage straight beam (9), reinforcing plate (7), protection crossbeam (6) are located vertical section (3) both sides around respectively, side fixedly connected with and self vertically bent plate (5) of vertical section (3) are faced in reinforcing plate (7), and this bent plate (5) and the front side laminating and the fixed connection of vertical section (3).

2. A rear protection reinforcing structure of a large truck according to claim 1, characterized in that the reinforcing plate (7) is detachably and fixedly connected with the straight beam (9) of the carriage.

3. The rear protection reinforcing structure of the large truck as claimed in claim 2, characterized in that the reinforcing plate (7) is detachably and fixedly connected with the carriage straight beam (9), the reinforcing plate (7) is connected with the frame straight beam (1), and the reinforcing plate (7) is connected with the vertical section (3) through bolts, and the outer side surface of the carriage straight beam (9) and the outer side surface of the frame straight beam (1) are respectively attached to the inner side surface of the reinforcing plate (7).

4. The rear protection reinforcing structure of the large truck according to the claim 2 or 3, characterized in that the reinforcing plate (7) is provided with a mounting groove (10), and the mounting groove (10) is provided with a U-shaped bolt (11) for fixing the carriage straight beam (9) and the frame straight beam (1).

5. The rear protection reinforcing structure of the large truck as claimed in claim 3, characterized in that the front and rear side edges of the vertical section (3) and the upper and lower side edges of the horizontal section (4) are respectively fixedly connected with a side plate (8) perpendicular to the vertical section, the side plate (8) at the front side of the vertical section (3) is attached to the bending plate (5) on the reinforcing plate (7), and the side plate (8) at the front side of the vertical section (3) is fixedly connected with the bending plate (5) on the reinforcing plate (7) through bolts.

6. A rear protection structure according to claim 1, characterized in that a reinforcing bar (14) is fixedly connected between the vertical section (3) and the horizontal section (4), and the reinforcing plate (7) and the reinforcing bar (14) are respectively located at the front and rear sides of the vertical section (3).

7. A rear protective structure according to claim 6, characterized in that the lengthwise direction of the reinforcing bars (14) is at an angle of 45 ° to the lengthwise direction of the horizontal section (4).

8. A rear protective structure according to claim 6, characterized in that said reinforcing strips (14) are bent from sheet material into an L-shaped configuration.