Special-shaped vehicle frame assembly

Abstract

The present application relates to the field of transport device, the present application discloses a special-shaped frame assembly, including frame body, the frame body includes the head, middle part and tail part that are connected together, the head is used to be connected with trailer, the middle part is compared with the head and is concave downward, the tail part is compared with the middle part and is convex upward, and installation space is reserved between the tail part and ground.The middle part of the special-shaped frame assembly is concave between the head and the tail part, when the super-high piece is placed in the middle part and is carried, compared with general flatbed frame, it is more advantageous to high position, in addition, the tail part is convex upward compared with the middle part to reserve installation space, so that the tail part of the special-shaped frame can install larger wheels and install more wheel control structures, etc., the special-shaped frame has better heavy load carrying capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transport devices, in particular to a special-shaped frame assembly. BACKGROUND

[0002] In various aspects of life and production, the trailer frame for transporting goods is usually a flat plate type frame. Such a frame has the advantages of simple structure and low cost, but for some large and high objects (commonly known as super-high objects), such a flat plate type frame cannot gain space in the height direction for super-high objects. The use of flat plate type frame has certain limitations. In addition, the structural strength of the current flat plate type frame is limited. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art.

[0004] The present application provides a special-shaped frame assembly, which comprises a frame body, the frame body comprises a head part, a middle part and a tail part connected together, the head part is used for connecting with a trailer, the middle part is recessed downward compared with the head part, and the tail part is protruded upward compared with the middle part, and installation space is reserved between the tail part and the ground.

[0005] The beneficial effects of the present application are as follows: the middle part of the special-shaped frame assembly is recessed between the head part and the tail part, when super-high objects are placed in the middle part for transportation, it is more beneficial to pass through the height limit position compared with the general flat plate type frame, in addition, the tail part is protruded upward compared with the middle part to reserve installation space, so that the tail part of the special-shaped frame can install larger wheels and more wheel control structures, etc., the special-shaped frame has better large weight carrying capacity.

[0006] As some sub-schemes of the above technical solutions, the frame body is a shell-shaped structure, the head part comprises a first outer transverse plate, a first inclined plate, a first outer vertical plate, a first inner folded plate, a first front plate and a first rear plate, the first outer transverse plate, the first inclined plate and the first outer vertical plate are sequentially connected, the first inclined plate connects the first outer transverse plate and the first outer vertical plate, the first front plate is connected with the front end face of the first outer transverse plate, the front end face of the first outer vertical plate and the front end face of the first inner folded plate, the first rear plate is connected with the rear end face of the first outer transverse plate, the rear end face of the first outer vertical plate and the rear end face of the first inner folded plate, the first outer transverse plate, the first inclined plate, the first outer vertical plate, the first inner folded plate, the first front plate and the first rear plate form a first pipe body in the shape of a horizontally placed "L", a first reinforcing piece, an angle strip and a second reinforcing piece are further arranged at the connection positions of the first outer transverse plate, the first inclined plate and the first outer vertical plate, the first reinforcing piece is connected with the inner side face of the first outer transverse plate, the second reinforcing piece is connected with the inner side face of the first outer vertical plate, the angle strip is located between the first reinforcing piece and the second reinforcing piece, the angle strip comprises a first side plate and a second side plate connected together, the first side plate and the second side plate are connected with the first reinforcing piece and the second reinforcing piece respectively, and the first outer vertical plate and the first inner folded plate are connected with the tail part.

[0007] As some sub-schemes of the above technical solutions, the first reinforcing piece is in the shape of "U", the first reinforcing piece comprises a first muscle plate, a second muscle plate and a third muscle plate connected in sequence, the first muscle plate and the third muscle plate of the first reinforcing piece extend towards the same direction, and the first muscle plate and the third muscle plate of the first reinforcing piece are connected with the first outer transverse plate and the angle strip respectively.

[0008] As some sub-schemes of the above technical solutions, the structure of the second reinforcing piece is the same as that of the first reinforcing piece, and the first muscle plate and the third muscle plate of the second reinforcing piece are connected with the first outer vertical plate and the angle strip respectively.

[0009] As some sub-schemes of the above technical solutions, the first inner folded plate is in the shape of "Z" as a whole, a lap plate extending horizontally is further arranged at the lower end of the first inner folded plate, the middle part comprises a second outer plate, a second inner plate, a second front plate and a second rear plate, the second front plate connects the front end faces of the second outer plate and the second inner plate, the second rear plate connects the rear end faces of the second outer plate and the second inner plate, and the left end of the second inner plate extends above the lap plate and is connected with the lap plate.

[0010] As some sub-schemes of the above technical solutions, a first welding strip is further arranged between the second inner plate and the lap plate, the first welding strip connects the left end face of the second inner plate and the upper end face of the first inner folded plate, and the first welding strip extends along the width direction of the second inner plate.

[0011] As some sub-schemes of the above technical solution, the height of the first welding strip is 0.6-0.9 times the thickness of the second inner plate.

[0012] As some sub-schemes of the above technical solution, the height of the first welding strip is 0.8 times the thickness of the second inner plate.

[0013] As some sub-schemes of the above technical solution, the first outer transverse plate and the first inner folded plate are further provided with a third reinforcing member, the third reinforcing member is in the shape of "U" as a whole, the third reinforcing member comprises a first supporting plate, a second supporting plate and a third supporting plate connected in sequence, the first supporting plate and the second supporting plate extend towards the same direction, the first supporting plate is connected with the inner side surface of the first outer transverse plate, and the third supporting plate is connected with the inner side surface of the first inner folded plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, in which:

[0015] Figure 1 is a schematic view of a front structure of an embodiment of a special-shaped frame assembly

[0016] Figure 2 is Figure 1 is an enlarged view of part A;

[0017] Figure 3 is Figure 1 is an enlarged view of part B.

[0018] In the drawings: 1 - head; 11 - first outer transverse plate; 12 - first outer vertical plate; 13 - first inner folded plate; 14 - first inclined plate; 15 - third reinforcing member;

[0019] 2 - middle part; 21 - second outer plate; 22 - second inner plate;

[0020] 3 - tail; 31 - top plate;

[0021] 4 - main reinforcing member;

[0022] 51 - first reinforcing member; 52 - angle strip; 53 - second reinforcing member;

[0023] 6 - first welding strip. DETAILED DESCRIPTION

[0024] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of the present application, the meaning of several is not quantitative, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated. And / or appearing throughout the text means three parallel schemes, for example, A and / or B means the scheme satisfied by A, the scheme satisfied by B, or the scheme satisfied by A and B at the same time.

[0027] In the description of the present application, if there is a short sentence containing multiple parallel features, the determinative therein is limited to the closest feature, for example: B, C and D connected E set on A, which means that B is set on A, and E is connected with D, and C is not limited; but for the determinative indicating the relationship between the features, such as "interval arrangement", "ring arrangement" and the like, it does not belong to this kind. The determinative is preceded by the word "all", which means the limitation of all features in the short sentence, such as B, C and D set on A, which means that B, C and D are set on A. The omitted subject is the subject of the previous sentence, that is, A has B, including C, which means that A has B and A includes C.

[0028] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0029] The following will be described in combination with Figures 1 to 3 The embodiments of the present application are described.

[0030] The present embodiment relates to a special-shaped frame assembly, comprising a frame body, the frame body comprises a head part 1, a middle part 2 and a tail part 3 connected together, the head part 1 is used for connecting with a trailer, the middle part 2 is recessed downward compared with the head part 1, and the tail part 3 is protruded upward compared with the middle part 2, installation space is reserved between the tail part 3 and the ground.

[0031] The middle part 2 of the special-shaped frame assembly is recessed between the head part 1 and the tail part 3. When the super-high piece is placed in the middle part 2 for carrying, compared with the general flat frame, it is more conducive to passing through the height limit position. In addition, the tail part 3 is protruded upward compared with the middle part 2 to reserve installation space, so that the tail part 3 of the special-shaped frame can install larger wheels and more wheel control structures, etc. The special-shaped frame has better large weight carrying capacity.

[0032] When the special-shaped frame assembly in the embodiment is used, first, the head part 1 of the frame body is connected with the driving vehicle, and the wheels are installed at the tail part 3 of the frame body. Then the super-high piece is placed in the middle part 2 of the frame body, and the frame body can be moved to move the super-high piece by the driving vehicle. In the embodiment, the head part 1, the middle part 2 and the tail part 3 of the frame body are arranged in the form of high, low and high. On the one hand, the recessed middle part 2 can reduce the placement height of the super-high piece, and in the height direction, the space for the super-high piece to pass through the height limit position is obtained. On the other hand, since the ground clearance of the head part 1 and the tail part 3 greatly affects the maximum outer diameter of the wheel and the maximum carrying capacity of the entire frame body, the structure that the head part 1 and the tail part 3 are both above the middle part 2 can make the ground clearance of the head part 1 and the tail part 3 consistent with the conventional flat frame, so that the frame body still has the carrying capacity comparable to the general flat frame although the recessed structure is designed in the middle part 2. The carrying capacity is not greatly sacrificed because the height of the carrying position of the frame body needs to be lowered.

[0033] Further, the frame body is a shell structure, the head 1 comprises a first outer transverse plate 11, a first inclined plate 14, a first outer vertical plate 12, a first inner folded plate 13, a first front plate and a first rear plate; the first outer transverse plate 11, the first inclined plate 14 and the first outer vertical plate 12 are sequentially connected, the first inclined plate 14 connects the first outer transverse plate 11 and the first outer vertical plate 12, the first front plate is connected with the front end surface of the first outer transverse plate 11, the front end surface of the first outer vertical plate 12 and the front end surface of the first inner folded plate 13, the first rear plate is connected with the rear end surface of the first outer transverse plate 11, the rear end surface of the first outer vertical plate 12 and the rear end surface of the first inner folded plate 13, the first outer transverse plate 11, the first inclined plate 14, the first outer vertical plate 12, the first inner folded plate 13, the first front plate and the first rear plate form a first pipe body in the shape of a horizontally placed “L”; a first reinforcing part 51, an angle strip 52 and a second reinforcing part 53 are further arranged at the connecting position of the first outer transverse plate 11, the first inclined plate 14 and the first outer vertical plate 12, the first reinforcing part 51 is connected with the inner side surface of the first outer transverse plate 11, the second reinforcing part 53 is connected with the inner side surface of the first outer vertical plate 12, the angle strip 52 is located between the first reinforcing part 51 and the second reinforcing part 53, the angle strip 52 comprises a first side plate and a second side plate connected together, the first side plate and the second side plate are respectively connected with the first reinforcing part 51 and the second reinforcing part 53, and the first outer vertical plate 12 and the first inner folded plate 13 are connected with the tail 3.

[0034] The inner side surface of the first outer transverse plate 11 and the inner side surface of the first outer vertical plate 12 are relative to the first pipe body respectively, which respectively refer to the side surface of the first outer transverse plate 11 located at the inner side of the first pipe body and the side surface of the first outer vertical plate 12 located at the inner side of the first pipe body. The frame body is a shell structure in this embodiment, which is beneficial to reduce the weight of the frame body as a whole. The first outer transverse plate 11, the first inclined plate 14, the first outer vertical plate 12, the first inner folded plate 13, the first front plate and the first rear plate form the first pipe body in the shape of a horizontally placed “L” and the short side of the first pipe body faces downward, which is described in detail with reference to Figure 1The first inclined plate 14 is connected with the first outer horizontal plate 11 and the first outer vertical plate 12, and the corner strip 52 is connected with the first reinforcing member 51 and the second reinforcing member 53 to reinforce the first outer horizontal plate 11 and the first outer vertical plate 12. The above structure integrally forms a triangular support structure. When the first outer horizontal plate 11 is subjected to downward pressure, the first reinforcing member 51 supports the first outer horizontal plate 11, and the corner strip 52 and the first outer vertical plate 12 and the second reinforcing member 53 also support the first outer horizontal plate 11. Similarly, when the first outer vertical plate 12 is subjected to leftward pressure, the second reinforcing member 53 supports the first outer vertical plate 12, and the corner strip 52 and the first outer horizontal plate 11 and the first reinforcing member 51 also indirectly support the first outer vertical plate 12. Therefore, the first outer vertical plate 12 and the first outer horizontal plate 11 are connected by the first reinforcing member 51, the corner strip 52 and the second reinforcing member 53 to support each other, thereby greatly increasing the structural strength and the compression resistance and impact resistance of the first outer vertical plate 12 and the first outer horizontal plate 11.

[0035] Further, the first reinforcing member 51 is in a "U" shape, and includes a first rib plate, a second rib plate and a third rib plate connected in sequence. The first rib plate and the third rib plate extend in the same direction, and the first rib plate and the third rib plate of the first reinforcing member 51 are connected with the first outer horizontal plate 11 and the corner strip 52, respectively. The first reinforcing member 51 is arranged in a "U" shape, and is connected with the first outer horizontal plate 11 and the corner strip 52 through the first rib plate and the third rib plate, thereby increasing the connection area of the first reinforcing member 51 with the first outer horizontal plate 11 and the corner strip 52, and improving the connection strength of the first reinforcing member 51.

[0036] The second reinforcing member 53 has the same structure as the first reinforcing member 51, and the first rib plate and the third rib plate of the second reinforcing member 53 are connected with the first outer vertical plate 12 and the corner strip 52, respectively. Similarly, the second reinforcing member 53 is arranged in a "U" shape, thereby increasing the connection area of the second reinforcing member 53 with the first outer vertical plate 12 and the corner strip 52, and further improving the reinforcing capacity of the second reinforcing member 53 for the first outer vertical plate 12.

[0037] Further, the first reinforcing member 51 and the second reinforcing member 53, both of which are in a "U" shape, are arranged with their open directions facing away from the first inclined plate 14. Thus, the second web of the first reinforcing member 51 and the second web of the second reinforcing member 53 are both in contact with the angle strip 52, so that the connection of the first web, the third web of the first reinforcing member 51 with the first outer transverse plate 11 and the angle strip 52 is more stable, and the connection of the first web, the third web of the second reinforcing member 53 with the first outer vertical plate 12 and the angle strip 52 is also more stable, further improving the structural strength.

[0038] Further, the first inner folded plate 13 is in a "Z" shape as a whole, and the lower end of the first inner folded plate 13 is further provided with a transversely extending lap plate. The middle part 2 includes a second outer plate 21, a second inner plate 22, a second front plate and a second rear plate. The second front plate connects the front end faces of the second outer plate 21 and the second inner plate 22, and the second rear plate connects the rear end faces of the second outer plate 21 and the second inner plate 22. The left end of the second inner plate 22 extends above the lap plate and is connected with the lap plate. The first inner folded plate 13 is in a "Z" shape as a whole, which can conveniently form the head part 1 in an "L" shape as a whole with the first outer transverse plate 11, the first inclined plate 14 and the first outer vertical plate 12. In this embodiment, the first inner folded plate 13 is formed in a "Z" shape as a whole by bending. In addition, in this embodiment, the lap plate is also integrally formed with the first inner folded plate 13. The lower end of the first inner folded plate 13 is further provided with the lap plate, and the second inner plate 22 included in the middle part 2 is lapped on the lap plate before being welded. The contact area between the second inner plate 22 and the lap plate is large, which is more conducive to the stable connection between the lap plate and the second inner plate 22.

[0039] In this embodiment, the second inner plate 22 and the lap plate are connected together by welding. A first welding strip 6 is further arranged between the second inner plate 22 and the lap plate. The first welding strip 6 connects the left end face of the second inner plate 22 and the upper end face of the first inner folded plate 13, and extends along the width direction of the second inner plate 22. In this scheme, the middle part 2 is the position for supporting the load, and the stress of the middle part 2 is mainly the gravity. The gravity acts directly on the second outer plate 21. In this embodiment, a main reinforcing member 4 is further arranged between the second outer plate 21 and the second inner plate 22. The main reinforcing member 4 is in a transversely arranged "U" shape. The upper side and the lower side of the main reinforcing member 4 are connected with the second outer plate 21 and the second inner plate 22 respectively. Thus, when the force of the second outer plate 21 acts on the second inner plate 22 through the main reinforcing member 4, the second inner plate 22 is subjected to a downward force, and at this time, the connection between the second inner plate 22 and the lap plate is also subjected to a downward force.

[0040] In general, in order to enhance the connection strength between the second inner plate 22 and the lap plate, the length of the welding position of the second inner plate 22 and the lap plate should be increased as much as possible, and correspondingly, longitudinal welding seams should be used for welding, that is, welding along the length direction on the front side and the rear side of the second inner plate 22 and the lap plate. However, the second inner plate 22 and the lap plate are both thin plates in the embodiment, and the thickness is 0.8-2 mm, and in the embodiment, the thickness is 1.5 mm. When the second inner plate 22 and the lap plate are welded along the length direction, the heat is transferred deeper in the width direction, and a large range of thermal denaturation of the second inner plate 22 and the lap plate is caused in the welding process, and then the structural strength of the second inner plate 22 and the lap plate itself is greatly reduced. Therefore, in the embodiment, the first welding strip 6 in the transverse direction is arranged between the second inner plate 22 and the lap plate, that is, the second inner plate 22 and the lap plate are connected by the transverse welding seam, and after the second inner plate 22 and the lap plate are connected by welding, the strength of the lap plate and the second inner plate 22 itself can still be maintained at a high level.

[0041] The height of the first welding strip 6 is 0.6-0.9 times the thickness of the second inner plate 22. The height of the first welding strip 6 is the height of the welding seam, and the height of the welding seam is set to be 0.6-0.9 times the thickness of the second inner plate 22. When the second inner plate 22 and the lap plate are welded, the top surface of the second inner plate 22 can quickly dissipate heat, so as to better ensure the structural strength of the second inner plate 22 after welding.

[0042] The height of the first welding strip 6 is 0.8 times the thickness of the second inner plate 22. The height of the first welding strip 6 is the height of the welding seam, and the height of the welding seam is set to be 0.8 times the thickness of the second inner plate 22, which can better ensure the connection strength between the second inner plate 22 and the lap plate, and has little influence on the structural strength of the second inner plate 22 during welding.

[0043] In addition, further, the first welding layer is in the shape of “L”. The first welding layer includes a vertical segment and a transverse segment, the vertical segment is connected with the left end of the second inner plate 22, and the transverse segment is connected with the top surface of the lap plate. Thus, when the second inner plate 22 and the lap plate are connected by the welding layer,

[0044] Further, the first outer transverse plate 11 and the first inner folded plate 13 are further provided with a third reinforcing member 15, the third reinforcing member 15 is in a whole "U" shape, the third reinforcing member 15 comprises a first support plate, a second support plate and a third support plate which are connected in sequence, the first support plate and the second support plate extend towards the same direction, the first support plate is connected with the inner side of the first outer transverse plate 11, and the third support plate is connected with the inner side of the first inner folded plate 13. In the embodiment, the number of the third reinforcing member 15 is multiple, and the multiple third reinforcing members 15 are all arranged between the first inner folded plate 13 and the first outer transverse plate 11 to strengthen the support strength of the first outer plate. In addition, the third reinforcing member 15 is also arranged between the second inner plate 22 and the second outer plate 21 to strengthen the support strength of the second inner plate 22. The third reinforcing member 15 is arranged in a "U" shape to increase the contact area between the first outer transverse plate 11 and the first inner folded plate 13, and further strengthen the structural strength of the whole vehicle frame body.

[0045] In the embodiment, the structure of the tail part 3 is the same as that of the head part 1, but the size and arrangement of the structure of the tail part 3 are different from those of the head part 1. The structure of the tail part 3 is also in a transverse "L" shape, but the arrangement direction of the tail part 3 is opposite to that of the head part 1. The top plate 31 of the tail part 3 is lower than the first transverse plate included in the head part 1.

[0046] The preferred embodiments of the present application are described above, but the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A profiled frame assembly characterised in that: The vehicle includes a frame body, which comprises a head (1), a middle section (2), and a tail (3) connected together. The head (1) is used to connect to a trailer. The middle section (2) is recessed downward relative to the head (1), and the tail (3) is protruding upward relative to the middle section (2), providing installation space between the tail (3) and the ground. The frame body has a shell-like structure. The head (1) includes a first outer horizontal plate (11), a first inclined plate (14), a first outer vertical plate (12), a first inner folding plate (13), a first front plate, and a first rear plate. The first outer horizontal plate (11), the first inclined plate (14), and the first outer vertical plate (12) are arranged in a specific order. In this connection, the first inclined plate (14) connects the first outer horizontal plate (11) and the first outer vertical plate (12). The first front plate is connected to the front end face of the first outer horizontal plate (11), the front end face of the first outer vertical plate (12), and the front end face of the first inner folding plate (13). The first rear plate is connected to the rear end face of the first outer horizontal plate (11), the rear end face of the first outer vertical plate (12), and the rear end face of the first inner folding plate (13). The first outer horizontal plate (11), the first inclined plate (14), the first outer vertical plate (12), the first inner folding plate (13), the first front plate, and the first rear plate form a horizontally placed "L"-shaped first tube. 11) At the connection point between the first inclined plate (14) and the first outer vertical plate (12), a first reinforcing member (51), a corner strip (52), and a second reinforcing member (53) are also provided. The first reinforcing member (51) is connected to the inner side of the first outer horizontal plate (11), and the second reinforcing member (53) is connected to the inner side of the first outer vertical plate (12). The corner strip (52) is located between the first reinforcing member (51) and the second reinforcing member (53). The corner strip (52) includes a first side plate and a second side plate connected together. The first side plate and the second side plate are respectively connected to the first reinforcing member (51) and the second reinforcing member (53). The first outer upright plate (12) and the first inner folding plate (13) are both connected to the tail (3); the first reinforcing member (51) is U-shaped, and the first reinforcing member (51) includes a first stiffening plate, a second stiffening plate and a third stiffening plate connected in sequence. The first stiffening plate and the third stiffening plate extend in the same direction. The first stiffening plate and the third stiffening plate of the first reinforcing member (51) are respectively connected to the first outer horizontal plate (11) and the corner strip (52); the structure of the second reinforcing member (53) is the same as that of the first reinforcing member (51). The first stiffening plate and the third stiffening plate of the second reinforcing member (53) are respectively connected to the first outer upright plate (12) and the corner strip (52);The first outer transverse plate (11) and the first inner folded plate (13) are further provided with a third reinforcing part (15), the third reinforcing part (15) is in the shape of "U" as a whole, the third reinforcing part (15) comprises a first support plate, a second support plate and a third support plate connected in sequence, the first support plate and the second support plate extend towards the same direction, the first support plate is connected with the inner side of the first outer transverse plate (11), and the third support plate is connected with the inner side of the first inner folded plate (13).

2. The custom vehicle frame assembly of claim 1, wherein: The first inner folded plate (13) is in "Z" shape as a whole, and the lower end of the first inner folded plate (13) is further provided with a transversely extending lap plate, the middle part (2) comprises a second outer plate (21), a second inner plate (22), a second front plate and a second back plate, the second front plate connects the front end faces of the second outer plate (21) and the second inner plate (22), the second back plate connects the back end faces of the second outer plate (21) and the second inner plate (22), and the left end of the second inner plate (22) extends above the lap plate and is connected with the lap plate.

3. The custom vehicle frame assembly of claim 2, wherein: A first welding strip (6) is further arranged between the second inner plate (22) and the lap plate, the first welding strip (6) connects the left end face of the second inner plate (22) and the upper end face of the first inner folded plate (13), and the first welding strip (6) extends along the width direction of the second inner plate (22).

4. The custom vehicle frame assembly of claim 3, wherein: The height of the first welding strip (6) is 0.6-0.9 times the thickness of the second inner plate (22).

5. The custom vehicle frame assembly of claim 4, wherein: The height of the first welding strip (6) is 0.8 times the thickness of the second inner plate (22).

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