Aluminum alloy top-mounted side wall connecting structure of commercial vehicle

Abstract

An aluminum alloy top-mounted side wall connecting structure of a commercial vehicle is characterized in that a side wall plane of a carriage is formed by splicing flat plate section bars end to end, a rear door is arranged at the rear part of the carriage, side upright column section bars or rear door upright column section bars are arranged at four corners of the carriage, and hollow cavities of the side upright column section bars or the rear door upright column section bars are connected with a top frame or a bottom frame structure of the carriage in an inserting manner. The aluminum profile light-weight structural design is adopted, the weight reduction effect is greatly achieved, and the overall structure is firm, firm and reliable; the side wall profile plate is suitable for side wall structures of various sizes and types, mold opening can be reduced, and the cost is reduced; a large number of inserting structures are used among the side wall, the ceiling and the bottom frame, welding process manufacturing can be avoided, and the advantages of small deformation, high strength and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile components, in particular to a commercial vehicle aluminum alloy upper body side panel connection structure. Background Art

[0002] Existing vans are mostly made of steel, which are heavy and energy-intensive, making it difficult to adapt to increasingly stringent emission regulations. Replacing steel with aluminum has become an important lightweight method for flatbed trucks under the new energy trend. Existing aluminum alloy cargo compartments are mostly welded or riveted structures, which are not conducive to rapid assembly and single component maintenance and replacement; in addition, the existing aluminum alloy compartments have poor connection strength and overall stability, and it is difficult to ensure safety and reliability during the service life, which is in urgent need of improvement.

[0003] The side panels are the surrounding protective parts of the entire vehicle body. The upper end of the side panels is connected to the ceiling, and the lower end is connected to the chassis. The difficulty in designing them lies in: how to ensure that the side panels have a certain rigidity while being lightweight, so as to prevent the cargo in the vehicle body from colliding with the side panels, or the cargo is fully loaded and leaning against the side panels, so as to maintain the rigidity of the vehicle body side panels and prevent them from deforming; in addition, a firm and stable connection must be achieved between the side panels and the ceiling and chassis to achieve the overall structural stability of the entire van; thirdly, most aluminum alloy side panels are made up of multiple aluminum alloy profiles, and for the needs of various models and sizes of side panels, how to use the same aluminum profile for matching, combination and assembly, reduce the number of molds, and reduce production costs; the above are all design problems that must be overcome on the road to lightweighting of aluminum alloy van trucks. Summary of the invention

[0004] The purpose of the utility model is to provide a commercial vehicle aluminum alloy upper side panel connection structure, which adopts an aluminum profile lightweight structure design and has a significant weight reduction effect. The overall structure is firm, reliable and easy to assemble. The side panel profile plate is suitable for side panel structures of various sizes and types, which can reduce mold opening and reduce costs. A large number of plug-in structures are used between the side panel and the roof and the chassis, which can avoid the use of welding technology for manufacturing, and has the advantages of small deformation and high strength.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] A commercial vehicle aluminum alloy upper side panel connection structure, the side panel plane of the compartment is obtained by splicing flat plate profiles end to end, a rear door is arranged at the rear of the compartment, side column profiles or rear door column profiles are arranged at the four corners of the compartment, and the hollow cavity of the side column profile or the rear door column profile is plug-connected with the compartment top frame or bottom frame structure.

[0007] Because the plug-in structure is used to fix the top frame and bottom frame, most of the welding work can be avoided. After the plug-in is completed, rivets or threaded fasteners are used to fix the connection. Not only is the connection tight and firm, but also the rigidity is good, avoiding the loss of mechanical properties of heat-treated materials caused by welding. The edge of the flat profile used as the panel door is wrapped with the door edge profile.

[0008] The side of the carriage is provided with a side door, and side door column profiles are provided on both sides of the side door. The side door is opened to facilitate the goods to enter the carriage from the side. The edge of the flat profile used as the panel door is wrapped with a door edge profile.

[0009] The reinforcing beam profile is fixed inside the adjacent flat profiles to reinforce and connect the entire panel or door surface into a whole. The reinforcing beam is connected to the flat profile by threaded fasteners or rivets to enhance the rigidity of the entire side panel or door panel plane and prevent the side panel or door panel from bending.

[0010] The connection between the column profile or the rear door column profile and the flat profile is provided with an overlapping edge, which is clamped and overlapped on the outer surface of the flat profile. Rivets or threaded fasteners are used at the overlapping point to connect and fix the construction edge with the flat profile to make the connection more firm.

[0011] The overlapping edge is arranged at the connection between the side door column profile and the flat profile, and the overlapping edge is clamped and overlapped on the outer surface of the flat profile. Rivets or threaded fasteners are used at the overlapping point to connect and fix the building edge with the flat profile to make the connection more firm.

[0012] The front and rear ends of the flat profile are respectively provided with a plug-in interface and a plug-in slot, so that the flat profile can be connected and fixed end to end. The flat profile connected end to end can form a side panel plane or a door panel plane according to a preset width; it is worth noting that the flat profile can also be machined according to the fine adjustment of the size to change its width, so as to adapt to the size of the compartment of a specific vehicle model.

[0013] Utility model advantages:

[0014] 1. The side panels of the vehicle compartment of the utility model are all made of extruded aluminum profiles, which have the advantages of high structural strength and high lightness. Compared with the side panels of steel trucks, the rigidity and strength are not greatly reduced, and the energy-saving and emission-reduction effects are obvious.

[0015] 2. The plug-in fixed connection of the utility model increases the connection strength compared with ordinary welding, and avoids the loss of material mechanical properties caused by welding; it better solves the deformation problem of aluminum alloy components caused by welding manufacturing, and improves the connection strength and the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is the overall elevation structure diagram of the side enclosure;

[0017] Figure 2 This is the overall elevation structure diagram of the side enclosure from another angle;

[0018] Figure 3 It is the cross-sectional structural diagram of the connection between the side column profile and the flat plate profile;

[0019] Figure 4 This is the cross-sectional structural diagram of the connection between the rear door pillar profile and the flat profile;

[0020] Figure 5 It is the cross-sectional structural diagram of the connection between the side door column profile and the flat plate profile;

[0021] Figure 6 To strengthen the elevation structure diagram of the beam profile;

[0022] The serial numbers and component names in the figure are: 11- flat plate profile; 12- side column profile; 2- rear door; 21- rear door column profile; 3- side door; 31- side door column profile; 4- reinforced beam profile. DETAILED DESCRIPTION

[0023] Example 1

[0024] A commercial vehicle aluminum alloy upper side panel connection structure, the side panel plane of the compartment is obtained by splicing flat plate profiles 11 end to end, a rear door 2 is arranged at the rear of the compartment, side column profiles 12 or rear door column profiles 21 are arranged at the four corners of the compartment, and the hollow cavity of the side column profile 12 or the rear door column profile 21 is plug-connected with the compartment top frame or bottom frame structure.

[0025] A side door 3 is arranged at the side of the carriage, and side door column profiles 31 are arranged on both sides of the side door 3 .

[0026] The reinforcing cross beam profiles 4 are fixed inside the adjacent flat plate profiles 11 to reinforce and connect the entire panel surface or door surface into a whole.

[0027] An overlapping edge is provided at the connection between the column profile 12 or the rear door column profile 21 and the flat plate profile 11 , and the overlapping edge is clamped and overlapped on the outer surface of the flat plate profile 11 .

[0028] An overlapping edge is provided at the connection between the side door column profile 31 and the flat profile 11 , and the overlapping edge is clamped and overlapped on the outer surface of the flat profile 11 .

[0029] The front and rear ends of the flat profile 11 are respectively provided with plug-in interfaces and plug-in grooves, so that the flat profile 11 can be connected end to end and fixed.

Claims

1. A commercial vehicle aluminum alloy upper side panel connection structure, characterized in that: The side plane of the carriage is obtained by splicing flat plate profiles (11) end to end, a rear door (2) is arranged at the rear of the carriage, side column profiles (12) or rear door column profiles (21) are arranged at the four corners of the carriage, and the hollow cavity of the side column profile (12) or the rear door column profile (21) is plug-connected to the top frame or bottom frame structure of the carriage.

2. The commercial vehicle aluminum alloy upper side panel connection structure according to claim 1, characterized in that: A side door (3) is arranged on the side of the carriage, and side door column profiles (31) are arranged on both sides of the side door (3).

3. The commercial vehicle aluminum alloy upper side panel connection structure according to claim 1, characterized in that: The reinforcing crossbeam profiles (4) are fixed on the inner sides of the adjacent flat plate profiles (11) to reinforce and connect the entire panel surface or door surface into a whole.

4. The commercial vehicle aluminum alloy upper side panel connection structure according to claim 1, characterized in that: An overlapping edge is provided at the connection between the column profile (12) or the rear door column profile (21) and the flat plate profile (11), and the overlapping edge is clamped and overlapped on the outer surface of the flat plate profile (11).

5. The commercial vehicle aluminum alloy upper side panel connection structure according to claim 2, characterized in that: An overlapping edge is provided at the connection between the side door column profile (31) and the flat profile (11), and the overlapping edge is clamped and overlapped on the outer surface of the flat profile (11).

6. The commercial vehicle aluminum alloy upper side panel connection structure according to claim 1, characterized in that: The front and rear ends of the flat profile (11) are respectively provided with a plug-in interface and a plug-in groove, so that the flat profile (11) can be connected end to end and fixed.

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