Body side wall and truck

Abstract

The invention relates to the technical field of vehicle engineering, in particular to a vehicle body side wall and a truck, the vehicle body side wall comprises a longitudinal beam assembly, a door frame skeleton, a container skeleton and a reinforcing piece, and the longitudinal beam assembly comprises a longitudinal beam front section, a longitudinal beam middle section and a longitudinal beam rear section; the door frame skeleton is annular and is fixed on the middle section of the longitudinal beam; the container framework is fixed to the longitudinal beam rear section and fixed to the door frame framework, and the container framework and the longitudinal beam rear section form a first annular structure. The front end of the reinforcing piece is fixed with the front section of the longitudinal beam, and the rear end of the reinforcing piece obliquely extends upwards and backwards and is fixed with the middle of the front end of the door frame skeleton; the reinforcing piece, the longitudinal beam front section and the door frame framework form a second annular structure, the second annular structure, the door frame framework and the first annular structure form three annular force transmission structures which are sequentially fixed from front to back, and the overall bearing capacity and impact resistance of the vehicle body are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a vehicle body side and a truck. Background Art

[0002] In existing mini trucks, the front driving cab and the rear cargo compartment are disconnected structures, and the force transmission between the front and rear parts of the vehicle can only be transmitted by the frame. Under vehicle torsion and bending conditions, the frame is subjected to large torque, resulting in a low overall load-bearing capacity of the vehicle. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the overall load-bearing capacity of the existing mini truck body is relatively low.

[0004] In order to solve the above technical problems, the present invention aims to provide a vehicle body side panel, comprising:

[0005] A longitudinal beam assembly, wherein the longitudinal beam assembly comprises a longitudinal beam front section, a longitudinal beam middle section and a longitudinal beam rear section;

[0006] A door frame frame, the door frame frame is ring-shaped and is fixed to the middle section of the longitudinal beam;

[0007] A cargo box frame, wherein the cargo box frame is fixed to the rear section of the longitudinal beam, and the cargo box frame is fixed to the door frame frame, and the cargo box frame and the rear section of the longitudinal beam form a first ring structure;

[0008] A reinforcement member, the front end of which is fixed to the front section of the longitudinal beam, the rear end of which extends upward and backward and is fixed to the middle of the front end of the door frame frame, and the reinforcement member, the front section of the longitudinal beam and the front end of the door frame frame form a second annular structure.

[0009] As a preferred solution, the cargo box frame includes a front reinforcement column and a rear frame fixed to the rear end of the front reinforcement column; the front reinforcement column includes a vertical section and a horizontal section fixed to the lower end of the vertical section; the vertical section is fixed to the door frame frame, the front end of the rear frame is fixed to the middle part of the vertical section, the rear end of the rear frame is fixed to the rear section of the longitudinal beam, and the horizontal section is fixed to the rear section of the longitudinal beam;

[0010] The rear section of the longitudinal beam, the rear frame and the front reinforcement column form the first annular structure.

[0011] As a preferred solution, the rear section of the longitudinal beam is higher than the middle section of the longitudinal beam, the front end of the horizontal section is fixed to the lower end of the vertical section, the rear end of the horizontal section is fixed to the front end of the rear section of the longitudinal beam, and the horizontal section and the middle section of the longitudinal beam are arranged at intervals in the upper and lower directions.

[0012] As a preferred solution, the front reinforcement pillar is a plate body, and the thickness direction of the front reinforcement pillar is arranged along the width direction of the vehicle body.

[0013] As a preferred solution, the vehicle body side further comprises a first connecting member, the first connecting member having a horizontally arranged first connecting portion and a vertically arranged second connecting portion, and a reinforcing portion arranged between the first connecting portion and the second connecting portion;

[0014] The first connection portion is fixed to the upper end of the rear section of the longitudinal beam, and the second connection portion is fixed to the rear end of the horizontal section.

[0015] As a preferred embodiment, the rear frame includes a cargo box longitudinal beam arranged along the front-to-back direction and a cargo box pillar arranged vertically, the front end of the cargo box longitudinal beam is fixed to the middle part of the front reinforcing pillar, the lower end of the cargo box pillar is fixed to the rear section of the longitudinal beam, and the cargo box pillar, the rear section of the longitudinal beam, the front reinforcing pillar and the cargo box longitudinal beam form a ring structure.

[0016] As a preferred solution, the door frame skeleton comprises a front side plate, a bottom plate, a rear side plate and a top plate which are sequentially connected into a ring shape, the bottom plate is fixed to the middle section of the longitudinal beam, the rear side plate is fixed to the front reinforcement column, and the rear end of the reinforcement member is fixed to the front side plate;

[0017] The top plate comprises a first connecting section connected to the front side plate and a second connecting section connected to the rear side plate, wherein the first connecting section is arranged in an up-and-down tilted manner with a front end lower than a rear end higher;

[0018] An absolute value of a difference between an inclination angle of the reinforcement member and an inclination angle of the first connecting section is less than or equal to 20° and greater than or equal to 5°.

[0019] As a preferred embodiment, the body side panel also includes a first inner reinforcement panel and a first outer reinforcement panel, the first inner reinforcement panel covers and is fixed on the side of the front reinforcement pillar and the rear side panel facing the inside of the vehicle; the first outer reinforcement panel covers and is fixed on the side of the front reinforcement pillar and the rear side panel facing the outside of the vehicle.

[0020] As a preferred solution, the front section of the longitudinal beam comprises a front axle mounting section and a force transmission section which are arranged in sequence from front to rear, the width of the force transmission section in the vertical direction gradually increases from front to rear, the front end of the reinforcement is fixed to the upper part of the force transmission section, and the front end of the middle section of the longitudinal beam is fixed to the lower part of the force transmission section;

[0021] The force transmission section, the reinforcement member, the middle section of the longitudinal beam and the front end of the door frame frame form the second annular structure.

[0022] A truck comprises the above-mentioned vehicle body side.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The vehicle body side of the present invention includes a longitudinal beam assembly, a door frame frame, a cargo box frame and a reinforcement member, the longitudinal beam assembly includes a front section of the longitudinal beam, a middle section of the longitudinal beam and a rear section of the longitudinal beam; the door frame frame is annular and fixed on the middle section of the longitudinal beam; the cargo box frame is fixed on the rear section of the longitudinal beam and fixed to the door frame frame, and the cargo box frame and the rear section of the longitudinal beam form a first annular structure; the front end of the reinforcement member is fixed to the front section of the longitudinal beam, and the rear end of the reinforcement member extends upward and backward and is fixed to the middle part of the front end of the door frame frame; the reinforcement member, the front section of the longitudinal beam and the door frame frame form a second annular structure, the second annular structure, the door frame frame and the first annular structure constitute three annular force transmission structures fixed in sequence from front to back, thereby enhancing the overall load-bearing capacity and impact resistance of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the inner structure of the vehicle body side panel of the present invention;

[0026] Figure 2 It is a schematic diagram of the outer structure of the vehicle body side panel of the present invention;

[0027] Figure 3 An exploded view of the vehicle body side of the present invention;

[0028] Figure 4 is a structural schematic diagram of a longitudinal beam assembly;

[0029] Figure 5 It is a structural schematic diagram of the front end of the longitudinal beam;

[0030] Figure 6 It is a structural schematic diagram of the rear end of the longitudinal beam;

[0031] Figure 7 is a schematic diagram of the structure of the rear skeleton;

[0032] In the figure, 1, longitudinal beam assembly, 11, longitudinal beam front section, 111, front axle mounting section, 112, force transmission section, 12, longitudinal beam middle section, 121, sub-section body, 13, longitudinal beam rear section, 14, longitudinal beam transition section, 2, door frame frame, 21, front side plate, 22, bottom plate, 23, rear side plate, 24, top plate, 241, first connecting section, 242, second connecting section, 3, cargo box frame, 31, front reinforcement column, 311, vertical section, 312, horizontal section, 32, rear frame, 321, cargo box longitudinal section Beam, 322, cargo box pillar, 4, reinforcement member, 51, first connecting member, 511, first connecting part, 512, second connecting part, 513, reinforcement part, 52, second connecting member, 53, third connecting member, 54, fourth connecting member, 61, inner reinforcement frame, 611, first inner reinforcement plate, 612, second inner reinforcement plate, 613, third inner reinforcement plate, 614, fourth inner reinforcement plate, 71, chassis spring seat, 72, shock absorber mounting pin, 73, reinforcement plate, 74, rear wheel cover connecting plate. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0035] like Figures 1 to 7As shown, in the description of the present invention, the front and rear directions refer to the length direction of the vehicle body, and the front direction is the front and the rear direction is the rear. The preferred embodiment of the vehicle body side of the present invention includes a longitudinal beam assembly 1, a door frame frame 2, a cargo box frame 3 and a reinforcement 4, wherein the longitudinal beam assembly 1 includes a longitudinal beam front section 11, a longitudinal beam middle section 12 and a longitudinal beam rear section 13; the door frame frame 2 is annular, and the door frame frame 2 is fixed on the longitudinal beam middle section; the cargo box frame 3 is fixed on the longitudinal beam rear section 13, and the cargo box frame 3 is fixed to the door frame frame 2, and the cargo box frame 3 and the longitudinal beam rear section 13 form a first annular structure; the front end of the reinforcement 4 is fixed to the longitudinal beam front section 11, and the rear end of the reinforcement 4 extends upward and backward and is fixed to the front end middle of the door frame frame 2, and the reinforcement 4, the longitudinal beam front section 11 and the front end of the door frame frame 2 form a second annular structure. The second annular structure, the door frame skeleton 2 and the first annular structure constitute three annular force transmission structures fixed in sequence from front to back, which enhance the overall load-bearing capacity and impact resistance of the vehicle body and improve the safety of the vehicle body.

[0036] In this embodiment, the longitudinal beam assembly 1 is formed by the method of split processing and then assembly, and the longitudinal beam front section 11, the longitudinal beam middle section 12 and the longitudinal beam rear section 13 are connected in sequence; there are many ways to connect the longitudinal beam front section 11, the longitudinal beam middle section 12 and the longitudinal beam rear section 13, such as welding, riveting, and bolting. The cargo box frame 3 includes a front reinforcement column 31 and a rear frame 32 fixed to the rear end of the front reinforcement column 31, the rear frame 32 is fixed to the longitudinal beam rear section 13, the front reinforcement column 31 includes a vertical section 311 and a horizontal section 312 fixed to the lower end of the vertical section 311; the vertical section 311 is fixed to the door frame frame 2, the front end of the rear frame 32 is fixed to the middle part of the vertical section 311, the rear end of the rear frame 32 is fixed to the longitudinal beam rear section 13, and the horizontal section 312 is fixed to the longitudinal beam rear section 13; the longitudinal beam rear section 13, the rear frame 32 and the front reinforcement column 31 enclose a first ring structure. The vertical section 311 and the horizontal section 312 are arranged in an L shape, and the contact area between the horizontal section and the longitudinal beam middle section 12 is large, thereby improving the connection firmness between the longitudinal beam middle section 12 and the horizontal section 312 .

[0037] Specifically, the door frame skeleton 2 includes a front side plate 21, a bottom plate 22, a rear side plate 23 and a top plate 24 which are sequentially connected to form a ring structure. The front side plate 21, the bottom plate 22, the rear side plate 23 and the top plate 24 are fixedly connected by welding. The bottom plate 22 is fixed to the middle section of the longitudinal beam 12. In other embodiments of the present invention, the door frame skeleton 2 can be processed by an integrated molding method. The front reinforcement column 31 is fixedly connected to the rear side plate 23. The fixedly connected front reinforcement column 31 and the rear side plate 23 form a body B-pillar. The fixing of the front reinforcement column 31 and the rear side plate 23 not only fixes the cargo box skeleton 3 to the cab, but also, compared with only using the rear side plate 23 as the body B-pillar, the vertical section 311 and the rear side plate 23 form a vertical double-column structure, which ensures the strength of the body B-pillar and enhances the strength of the body B-pillar.

[0038] In order to facilitate mass production, in this embodiment, the front reinforcement pillar 31 is a plate body, so that the front reinforcement pillar 31 can be made by stamping a plate. The thickness direction of the front reinforcement pillar 31 is along the width direction of the vehicle body, and the width of the front reinforcement pillar 31 is along the length direction of the vehicle body. This arrangement enables the front reinforcement pillar 31 made of a plate body to withstand a large impact force in the front and rear directions, further improving the safety of the vehicle body.

[0039] In order to ensure a firm connection between the front reinforcing pillar 31 and the longitudinal beam rear section 13, in this embodiment, the body side further includes a first connecting member 51, the first connecting member 51 having a horizontally arranged first connecting portion 511 and a vertically arranged second connecting portion 512, and a reinforcing portion 513 arranged between the first connecting portion 511 and the second connecting portion 512; the first connecting portion 511 is fixed to the upper end of the longitudinal beam rear section 13, and the second connecting portion 512 is fixed to the rear end of the horizontal section 312. Specifically, the upper end mounting surface of the longitudinal beam rear section 13 is a horizontal surface. If the first connecting member 51 is not provided, the connection strength between the vertically arranged plate body used as the front reinforcing pillar 31 and the horizontally arranged end surface is low. In this embodiment, after the first connecting member 51 is provided, the thickness direction of the plate body is in contact with the vertical section of the connecting member, and the connection strength between the plate body and the connecting member is high, thereby ensuring a firm connection between the front reinforcing pillar 31 and the longitudinal beam rear section 13. Specifically, the first connecting member 51 is formed by stamping a metal plate, and a reinforcing rib is provided at the corner between the first connecting portion 511 and the second connecting portion 512, and the reinforcing rib forms a reinforcement portion 513. The first connecting portion 511 and the horizontal section 312, and the second connecting portion 512 and the longitudinal beam rear section 13 can be fixedly connected by fastening, riveting or welding.

[0040] In this embodiment, the top plate 24 includes a first connecting section 241 connected to the front side plate 21 and a second connecting section 242 connected to the rear side plate 23. The first connecting section 241 is arranged in an up-and-down tilted manner with the front end lower and the rear end higher. The absolute value of the difference between the tilt angle of the reinforcement 4 and the tilt angle of the first connecting section 241 is less than or equal to 20° and greater than or equal to 5°. When the front section 11 of the longitudinal beam is subjected to a rearward impact force, the impact force applied by the reinforcement 4 to the front side plate 21 can be in the same direction as the tilt direction of the reinforcement section. The difference between the tilt angle of the reinforcement 4 and the tilt angle of the first connecting section 241 is small, so that the impact force can be transmitted to the first connecting section 241, reducing the bending moment on the front side plate 21, preventing the front side plate 21 as the A-pillar of the vehicle body from collapsing into the cab, and ensuring the safety of people in the cab. When the connection position between the reinforcement 4 and the front section 11 of the longitudinal beam remains unchanged, increasing the inclination angle of the reinforcement 4 can reduce the difference between the inclination angles of the reinforcement 4 and the first connecting section 241. If the inclination angle of the reinforcement 4 is too large, the installation space occupied by the reinforcement will increase, which is not conducive to the arrangement of the front components of the vehicle. Therefore, while increasing the inclination angle of the reinforcement 4, the connection position between the reinforcement 4 and the front section 11 of the longitudinal beam needs to be moved backward, which will cause the size of the second annular structure to be reduced, which is not conducive to force transmission. In this embodiment, the absolute value of the difference between the inclination angle of the reinforcement 4 and the inclination angle of the first connecting section 241 is less than or equal to 20° and greater than or equal to 5°, which not only ensures that the size of the second annular structure is appropriate, thereby ensuring the force transmission effect, but also facilitates the arrangement of the front components of the vehicle.

[0041] The middle section 12 of the longitudinal beam is mainly used to bear the cab. In order to make the overall center of gravity of the wheels lower and thus provide stability of the vehicle, in this embodiment, the rear section 13 of the longitudinal beam is higher than the middle section 12 of the longitudinal beam. The rear section 13 of the longitudinal beam is mainly used to bear the cargo hold. The front end of the horizontal section 312 is fixed to the lower end of the vertical section 311, and the rear end of the horizontal section 312 is fixed to the front end of the rear section 13 of the longitudinal beam. The horizontal section 312 and the middle section 12 of the longitudinal beam are arranged with intervals up and down. The horizontal section 312 and the middle section 12 of the longitudinal beam are arranged with intervals up and down in parallel. When transmitting force in the front-to-back direction, the horizontal section 312 and the middle section 12 of the longitudinal beam transmit force to the rear section 13 of the longitudinal beam at the same time, and the horizontal section 312 and the middle section 12 of the longitudinal beam are respectively located at the upper and lower parts of the rear section 13 of the longitudinal beam, thereby avoiding the generation of a large bending moment at the connection position of the middle section 12 of the longitudinal beam and the longitudinal beam section when transmitting force in the front-to-back direction, and further improving the bending and torsional strength of the body side at the junction of the cab and the cargo hold.

[0042] In order to facilitate the transition between the longitudinal beam middle section 12 and the longitudinal beam rear section 13, in this embodiment, the longitudinal beam assembly 1 further includes a longitudinal beam transition section 14 arranged between the longitudinal beam middle section 12 and the longitudinal beam rear section 13. The longitudinal beam transition section 14 is arranged to be inclined up and down, and the front end of the longitudinal beam transition section 14 is low and the rear end is high. The front end of the longitudinal beam transition section 14 is fixed to the rear end of the longitudinal beam middle section 12, and the rear end of the longitudinal beam transition section 14 is fixed to the front end of the longitudinal beam rear section 13. The longitudinal beam transition section 14 can be integrally formed with the longitudinal beam rear section 13, or integrally formed with the longitudinal beam middle section 12, or connected to the longitudinal beam rear section 13 and the longitudinal beam middle section 12 as a whole after being formed separately. The longitudinal beam middle section 12 can be provided with a plurality of sub-section bodies 121 fixedly connected in sequence from front to back, the sub-section body 121 located at the front end of the longitudinal beam middle section 12 is fixedly connected to the lower part of the force transmission section 112, and the sub-section body 121 located at the rear end of the longitudinal beam middle section 12 is fixedly connected to the front end of the longitudinal beam transition section 14. A chassis coil spring seat 71 is fixed at the lower end of the longitudinal beam rear section 13, a shock absorber mounting pin 72 is fixed at the position in front of the chassis coil spring seat 71 on the inner side of the longitudinal beam rear section 13, a second connecting member 52 punched from a plate is fixed at the rear end of the longitudinal beam rear section 13, the lower end of the cargo box column 322 is fixedly connected to the second connecting member 52, and a rear wheel cover connecting plate 74 is connected to the cargo box column 322 to facilitate the installation of the rear wheel cover; a third connecting member 53 punched from a plate is fixed at the front end of the cargo box longitudinal beam 321, and the third connecting member is fixed to the middle part of the reinforcing column. In this embodiment, a fourth connecting member 54 for connecting the front floor cross beam is fixed at the upper end of the longitudinal beam middle section 12. The longitudinal beam middle section 12 is punched from a metal plate, and has a groove with an opening facing upward, the length direction of the groove is arranged along the front-back direction, and a reinforcing plate 73 is fixed to the inner wall of the groove, thereby enhancing the strength of the longitudinal beam middle section 12.

[0043] In this embodiment, the longitudinal beam front section 11 includes a front axle mounting section 111 and a force transmission section 112 arranged in sequence from front to back. The front axle mounting section 111 extends from front to back and is arranged horizontally. The width of the force transmission section 112 in the vertical direction gradually increases from front to back. The force transmission section 112 forms a fan-shaped structure with a small front end and a large rear end. The fan-shaped structure diverges along the up and down direction. The front end of the reinforcement 4 is fixed to the upper part of the force transmission section 112, and the front end of the longitudinal beam middle section 12 is fixed to the lower part of the force transmission section 112. Specifically, the force transmission section 112, the reinforcement 4, the longitudinal beam middle section 12 and the front end of the door frame skeleton 2 form a second ring structure. The force transmission section 112 can disperse the impact force in the front and rear directions received by the front axle mounting section 111 to the reinforcement 4 and the longitudinal beam middle section 12, so as to avoid the longitudinal beam middle section 12 from bearing all the impacts alone or the door frame skeleton 2 from bearing all the impacts alone, thereby further improving the overall strength and impact resistance of the vehicle body side of this embodiment.

[0044] In this embodiment, the rear frame 32 includes a cargo box longitudinal beam 321 arranged in the front-to-back direction and a cargo box column 322 arranged vertically. The front end of the cargo box longitudinal beam 321 is fixed to the middle part of the front reinforcing column 31, and the lower end of the cargo box column 322 is fixed to the longitudinal beam rear section 13. The cargo box column 322 and the cargo box longitudinal beam 321 form an L-shaped structure. The cargo box column 322, the longitudinal beam rear section 13, the front reinforcing column 31 and the cargo box longitudinal beam 321 form a ring structure. The impact force in the front-to-back direction borne by the longitudinal beam middle section 12 and the door frame frame 2 is further transmitted to the cargo box column 322, the longitudinal beam rear section 13, the front reinforcing column 31 and the cargo box longitudinal beam 321 to form a ring structure. The setting of the ring structure improves the overall strength and impact resistance of the body side of this embodiment.

[0045] In this embodiment, the body side also includes a first inner reinforcement plate 611, which covers and is fixed to the side of the front reinforcement pillar 31 and the rear side panel 23 facing the inside of the vehicle. The first inner reinforcement plate 611 can not only cover the side of the front reinforcement pillar 31 and the rear side panel 23 facing the inside of the vehicle, but also can further enhance the strength of the body B-pillar; further, the body side also includes a first outer reinforcement plate, which covers and is fixed to the side of the front reinforcement pillar 31 and the rear side panel 23 facing the outside of the vehicle. The first outer reinforcement plate, the front reinforcement pillar 31, the rear side panel 23 and the first inner reinforcement plate 611 are fixed as an integrated structure, together forming the body B-pillar, further enhancing the strength of the body B-pillar.

[0046] In this embodiment, the body side also includes a second inner reinforcement plate 612 fixed on the inner side of the top plate 24, a third inner reinforcement plate 613 fixed on the inner side of the front side plate 21, and a fourth inner reinforcement plate 614 fixed on the inner side of the bottom plate 22. The first inner reinforcement plate 611, the second inner reinforcement plate 612, the third inner reinforcement plate 613, and the fourth inner reinforcement plate 614 are sequentially fixedly connected to form an annular inner reinforcement frame 61. In addition, the body side also includes a second outer reinforcement plate fixed on the outer side of the top plate 24, a third outer reinforcement plate fixed on the outer side of the front side plate 21, and a fourth outer reinforcement plate fixed on the outer side of the bottom plate 22. The first outer reinforcement plate, the second outer reinforcement plate, the third outer reinforcement plate, and the fourth outer reinforcement plate are sequentially fixedly connected to form an annular outer reinforcement frame. The structure of the outer reinforcement frame is similar to that of the inner reinforcement frame 61. The third outer reinforcement plate, the front side plate 21, and the third inner reinforcement plate 613 are sequentially fixed to form the body A-pillar.

[0047] A preferred embodiment of a mini truck comprises the above-mentioned vehicle body side.

[0048] In summary, the vehicle body side of the present invention includes a longitudinal beam assembly 1, a door frame frame 2, a cargo box frame 3 and a reinforcement member 4. The longitudinal beam assembly 1 includes a longitudinal beam front section 11, a longitudinal beam middle section 12 and a longitudinal beam rear section 13 arranged in sequence from front to rear; the door frame frame 2 includes a front side plate 21, a bottom plate 22, a rear side plate 23 and a top plate 24 connected in sequence to form a ring structure, and the bottom plate 22 is fixed to the longitudinal beam middle section 12; the cargo box frame 3 includes a front reinforcement column 31 and a rear frame 32 fixed to the rear end of the front reinforcement column 31, the rear frame 32 is fixed to the longitudinal beam rear section 13, and the front reinforcement column 31 is connected to the rear end of the front reinforcement column 31. The rear side panel 23 is fixedly connected to form the B-pillar of the vehicle body, so that the cargo box frame 3 is fixedly connected to the cab and the strength of the B-pillar of the vehicle body is enhanced. The front end of the reinforcement 4 is fixed to the front section 11 of the longitudinal beam, and the rear end of the reinforcement 4 extends upward and backward and is fixed to the middle part of the front side panel 21; the reinforcement 4, the front section 11 of the longitudinal beam and the front side panel 21 form a triangular stable structure, which enhances the connection strength between the door frame frame 2 and the longitudinal beam assembly 1. The door frame frame 2, the cargo box frame 3, the reinforcement 4 and the longitudinal beam assembly 1 form an integrated structure, which improves the overall load-bearing capacity of the vehicle body.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A vehicle body side panel, characterized in that: include: A longitudinal beam assembly (1), the longitudinal beam assembly (1) comprising a longitudinal beam front section (11), a longitudinal beam middle section (12) and a longitudinal beam rear section (13); A door frame frame (2), the door frame frame (2) is ring-shaped, and the door frame frame (2) is fixed to the middle section of the longitudinal beam; A cargo box frame (3), wherein the cargo box frame (3) is fixed to the rear section of the longitudinal beam (13), and the cargo box frame (3) is fixed to the door frame frame (2), and the cargo box frame (3) and the rear section of the longitudinal beam (13) form a first ring structure; A reinforcement member (4), wherein the front end of the reinforcement member (4) is fixed to the front section of the longitudinal beam (11), and the rear end of the reinforcement member (4) extends upward and backward in an inclined manner and is fixed to the middle part of the front end of the door frame skeleton (2); the reinforcement member (4), the front section of the longitudinal beam (11) and the front end of the door frame skeleton (2) form a second annular structure.

2. The vehicle body side panel according to claim 1, characterized in that: The cargo box frame (3) comprises a front reinforcing column (31) and a rear frame (32) fixed to the rear end of the front reinforcing column (31); the front reinforcing column (31) comprises a vertical section (311) and a horizontal section (312) fixed to the lower end of the vertical section (311); the vertical section (311) is fixed to the door frame frame (2), the front end of the rear frame (32) is fixed to the middle part of the vertical section (311), the rear end of the rear frame (32) is fixed to the rear section (13) of the longitudinal beam, and the horizontal section (312) is fixed to the rear section (13) of the longitudinal beam; The longitudinal beam rear section (13), the rear frame (32) and the front reinforcement column (31) enclose the first annular structure.

3. The vehicle body side panel according to claim 2, characterized in that: The longitudinal beam rear section (13) is higher than the longitudinal beam middle section (12), the front end of the horizontal section (312) is fixed to the lower end of the vertical section (311), the rear end of the horizontal section (312) is fixed to the front end of the longitudinal beam rear section (13), and the horizontal section (312) and the longitudinal beam middle section (12) are arranged at an interval up and down.

4. The vehicle body side panel according to claim 2, characterized in that: The front reinforcement column (31) is a plate body, and the thickness direction of the front reinforcement column (31) is arranged along the width direction of the vehicle body.

5. The vehicle body side panel according to claim 2, characterized in that: The vehicle body side also includes a first connecting member (51), the first connecting member (51) having a horizontally arranged first connecting portion (511) and a vertically arranged second connecting portion (512), and a reinforcing portion (513) arranged between the first connecting portion (511) and the second connecting portion (512); The first connecting portion (511) is fixed to the upper end of the longitudinal beam rear section (13), and the second connecting portion (512) is fixed to the rear end of the horizontal section (312).

6. The vehicle body side panel according to claim 2, characterized in that: The rear frame (32) includes a cargo box longitudinal beam (321) arranged along the front-to-back direction and a cargo box column (322) arranged vertically, the front end of the cargo box longitudinal beam (321) is fixed to the middle part of the front reinforcing column (31), the lower end of the cargo box column (322) is fixed to the rear section of the longitudinal beam (13), and the cargo box column (322), the rear section of the longitudinal beam (13), the front reinforcing column (31) and the cargo box longitudinal beam (321) form a ring structure.

7. The vehicle body side panel according to claim 2, characterized in that: The door frame skeleton (2) comprises a front side plate (21), a bottom plate (22), a rear side plate (23) and a top plate (24) which are sequentially connected to form a ring shape, the bottom plate (22) is fixed to the middle section of the longitudinal beam (12), the rear side plate (23) is fixed to the front reinforcing column (31), and the rear end of the reinforcing member (4) is fixed to the front side plate (21); The top plate (24) comprises a first connecting section (241) connected to the front side plate (21) and a second connecting section (242) connected to the rear side plate (23), wherein the first connecting section (241) is arranged in an up-and-down tilted manner with a front end lower than a rear end higher. The absolute value of the difference between the inclination angle of the reinforcement member (4) and the inclination angle of the first connecting section (241) is less than or equal to 20° and greater than or equal to 5°.

8. The vehicle body side panel according to claim 7, characterized in that: The vehicle body side also includes a first inner reinforcement plate (611) and a first outer reinforcement plate, wherein the first inner reinforcement plate (611) covers and is fixed to the side of the front reinforcement column (31) and the rear side plate (23) facing the inside of the vehicle; and the first outer reinforcement plate covers and is fixed to the side of the front reinforcement column (31) and the rear side plate (23) facing the outside of the vehicle.

9. The vehicle body side panel according to claim 1, characterized in that: The longitudinal beam front section (11) comprises a front axle mounting section (111) and a force transmission section (112) which are arranged in sequence from front to back, the width of the force transmission section (112) in the vertical direction gradually increases from front to back, the front end of the reinforcement member (4) is fixed to the upper part of the force transmission section (112), and the front end of the longitudinal beam middle section (12) is fixed to the lower part of the force transmission section (112); The force transmission section (112), the reinforcement member (4), the longitudinal beam middle section (12) and the front end of the door frame skeleton (2) form the second annular structure.

10. A truck, characterized in that: The vehicle body side panel comprises the vehicle body side panel as claimed in any one of claims 1 to 9.

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