Light-weight special vehicle aluminum alloy vehicle door main body and vehicle door

Abstract

The vehicle door body comprises a framework made of an aluminum alloy material and a skin plate wrapping the framework, the framework comprises a framework body and a cross beam, an inner cavity of the framework body is divided into an upper cavity and a lower cavity through the cross beam, one side of the upper cavity is connected with a plurality of first longitudinal beams, and the other side of the upper cavity is connected with a plurality of second longitudinal beams. The first longitudinal beams, the cross beams and the framework body form door and window mounting holes, door and window mounting frames are mounted on the door and window mounting holes, the lower portion of the lower cavity is connected with inclined supporting beams, a plurality of second longitudinal beams are connected between the inclined supporting beams and the cross beams, first open holes corresponding to the door and window mounting frames in appearance are formed in the upper portions of the skin plates, second open holes are formed in the lower portions of the skin plates, and the second longitudinal beams are exposed out of the second open holes. The vehicle door comprises a vehicle door body, a door and window structure and a door protection plate, the door and window structure is installed on the door and window installation frame, and the door protection plate is installed on the skin plate and located below the door and window installation frame. The light weight is achieved, the structural design is simple, a forming mold does not need to be manufactured, the manufacturing cost can be greatly reduced, and the manufacturing period is shortened.

Description

Technical Field

[0001] This invention relates to the field of special vehicle door technology, and more particularly to a large-size lightweight special vehicle aluminum alloy door body and door. Background Technology

[0002] The car door is a crucial component of the driver's cab, serving as the essential passageway for occupants. Traditionally, the main structure of a car door was typically welded from inner and outer thin steel plates. The outer plate was generally 0.9-1.0 mm thick, while the inner plate was 0.8-1.2 mm thick. To enhance collision resistance and reduce noise during driving on rough roads, the rigidity of such doors needed to be increased. Therefore, various reinforcing structures were often incorporated into the inner and outer plates of these doors, manufactured using a stamping process to achieve this reinforcement through their shape. This resulted in a complex door structure design, pushing the door's weight to its design limits, making further weight reduction very difficult, and increasing the subsequent manufacturing costs of such doors.

[0003] In view of this, how to design a lightweight special vehicle aluminum alloy door that can solve the above-mentioned technical problems is a topic that the inventor has devoted himself to researching. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight aluminum alloy door body and door for special vehicles. It not only achieves lightweighting but also has a simple structural design, eliminating the need for molding molds, which can significantly reduce manufacturing costs and shorten the manufacturing cycle.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a lightweight special vehicle aluminum alloy door body, including a frame and a skin panel covering the frame, both the frame and the skin panel being made of aluminum alloy. The frame includes a frame-shaped frame body and a crossbeam connected to the middle of the frame body. The crossbeam divides the inner cavity of the frame body into an upper chamber and a lower chamber. A plurality of first longitudinal beams are connected to one side of the upper chamber. Door and window mounting holes are formed between the first longitudinal beams, the crossbeam, and the frame body. Door and window mounting frames are installed on the door and window mounting holes. A diagonal brace is connected to the lower part of the lower chamber. A plurality of second longitudinal beams are connected between the diagonal brace and the crossbeam. A first opening is provided on the skin panel at a position corresponding to the door and window mounting frame. The first opening corresponds to the shape of the door and window mounting frame. A second opening is provided at the lower part of the skin panel, and at least one second longitudinal beam is exposed from the second opening.

[0006] The present invention provides a lightweight aluminum alloy door body for special vehicles, wherein the frame is welded together from aluminum alloy square tubes.

[0007] The present invention provides a lightweight aluminum alloy door body for special vehicles, wherein the skin panel includes a first skin panel that wraps around the frame located on the upper part of the crossbeam, a second skin panel that wraps around the frame located on the lower part of the crossbeam, and a third skin panel that is connected to the lower end of the second skin panel and extends beyond the lower end of the frame.

[0008] The present invention provides a lightweight aluminum alloy door body for special vehicles, wherein the included angle between the first skin plate and the second skin plate is 3-6°, the second skin plate is vertically arranged, and the upper end of the first skin plate is inclined inward.

[0009] The present invention provides a lightweight aluminum alloy door body for special vehicles, wherein the included angle between the second skin panel and the third skin panel is 3-5°, and the lower end of the third skin panel is inclined inward.

[0010] A lightweight special vehicle aluminum alloy door includes a door body, a door and window structure, and a door guard plate. The door and window structure is installed on the door and window mounting frame of the door body, and the door guard plate is installed on the skin plate below the door and window mounting frame.

[0011] This invention discloses a lightweight aluminum alloy door for special vehicles, wherein two door hinges are installed on one side of the outer surface of the skin panel at the upper and lower positions below the crossbeam, a door handle is installed in the middle of the other side of the outer surface of the skin panel, a limiter is installed on the side of the skin panel near the door hinges, a door lock is installed in the middle of the other side of the skin panel, and an inner door opening handle is installed on the inner surface of the door guard frame near the limiter.

[0012] This invention discloses a lightweight special vehicle aluminum alloy door, wherein the door and window structure includes a door and window and shielding glass installed on the door and window. The upper end of the door and window is rotatably connected to the upper end of the door and window mounting frame. Two gas springs are installed between the two sides of the door and window and the two sides of the door and window mounting frame. The lower end of the door and window is locked to the main body of the vehicle door by a latch.

[0013] The present invention provides a lightweight aluminum alloy door for special vehicles, wherein a support rail is installed on one side of the inner surface of the door / window, and the support rail supports the shielding glass when the door / window is closed.

[0014] The present invention provides a lightweight special vehicle aluminum alloy door, wherein a first sealing strip is provided around the outer edge of the door, and a second sealing strip is provided on the upper part of the outer edge of the door and on the outer side of the first skin plate.

[0015] After adopting the above solution, the beneficial effects of the lightweight special vehicle aluminum alloy door body and door of the present invention are:

[0016] 1. The main body of the car door of this invention adopts an all-aluminum alloy frame and skin panel structure, which not only achieves further weight reduction of the car door, but also greatly reduces the design complexity, and the rigidity of the car door is significantly improved compared with traditional car doors.

[0017] 2. The door of the present invention does not require the manufacture of molding molds, which can significantly reduce manufacturing costs and shorten the manufacturing cycle; the frame is easier to manufacture using profiles, and the skin panel structure can also be made by cutting flat plates, which eliminates the need for molding molds, thus significantly reducing manufacturing costs and shortening the manufacturing cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the outer surface structure of a lightweight special vehicle aluminum alloy door body embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the left side structure of an embodiment of a lightweight special vehicle aluminum alloy door body according to the present invention;

[0020] Figure 3 This is a schematic diagram of the inner surface structure of an embodiment of a lightweight special vehicle aluminum alloy door body according to the present invention;

[0021] Figure 4 This is a schematic diagram of the left side structure of an embodiment of the present invention, which describes a lightweight special vehicle aluminum alloy door body in the state where the skin panel is opened;

[0022] Figure 5 This is a schematic diagram of the inner surface structure of an embodiment of the present invention, which describes a lightweight special vehicle aluminum alloy door body in the state where the skin panel is opened.

[0023] Figure 6 This is a schematic diagram of the outer surface structure of an embodiment of a lightweight special vehicle aluminum alloy door according to the present invention;

[0024] Figure 7 This is a schematic diagram of the left side structure of an embodiment of a lightweight special vehicle aluminum alloy door according to the present invention;

[0025] Figure 8 This is a schematic diagram of the inner surface structure of an embodiment of a lightweight special vehicle aluminum alloy door according to the present invention;

[0026] Figure 9 This is a schematic diagram of the three-dimensional structure of the outer surface of an embodiment of a lightweight special vehicle aluminum alloy door according to the present invention;

[0027] Figure 10 This is a schematic diagram of the three-dimensional structure of the inner surface of an embodiment of a lightweight special vehicle aluminum alloy door according to the present invention.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0029] Numbering Explanation:

[0030] 1-Frame 2-Skin Plate

[0031] 3-Frame body 4-Crossbeam

[0032] 5-Upper chamber 6-Inferior chamber

[0033] 7-First longitudinal beam; 8-Door and window mounting holes

[0034] 9-Diagonal bracing beam; 10-Second longitudinal beam

[0035] 11-First skin plate 12-Second skin plate

[0036] 13-Third skin plate 14-First opening

[0037] 15-Second opening 16-Main body of the door

[0038] 17-Door and window structure 18-Door guard panel

[0039] 19-Doors and windows 20-Shielding glass

[0040] 21-Flip hinge 22-Gas spring

[0041] 23-Lock 24-Support rail

[0042] 26-Panicle tab 27-Door hinge

[0043] 28-Door handle 29-Limit switch

[0044] 30-Door lock 31-Door inward opening handle

[0045] 32-First sealing strip; 33-Second sealing strip

[0046] 34-Door and window installation frame Detailed Implementation

[0047] like Figures 1 to 3 The diagram shown illustrates the outer, left, and inner surface structures of a lightweight special vehicle aluminum alloy door body embodiment of the present invention, including a frame 1 and a skin plate 2 enclosing the frame 1. The frame 1 is constructed by welding aluminum alloy square tubing. (Combined with...) Figure 4 and Figure 5As shown in the figure, the skeleton 1 includes a rectangular frame-shaped skeleton body 3 and a cross beam 4 connected to the middle of the skeleton body 3. In this embodiment, the skeleton body 3 is formed by welding multiple aluminum alloy square tubes into two U-shaped structures, and the open ends of the two U-shaped structures are welded to the cross beam 4 respectively to form a "day" shaped structure. The cross beam 4 divides the inner cavity of the skeleton body 3 into an upper chamber 5 and a lower chamber 6. Looking from the inner surface of the car door main body, two first longitudinal beams 7 are welded on the left side of the upper chamber 5, and a window and door installation hole 8 is formed between the first longitudinal beam 7 on the right side, the cross beam 4 and the skeleton body 3. A window and door installation frame 34 is installed on the window and door installation hole 8. A diagonal brace beam 9 is welded at the lower part of the lower chamber 6, and multiple second longitudinal beams 10 are welded between the diagonal brace beam 9 and the cross beam 4. The above-mentioned first longitudinal beam 7, diagonal brace beam 9 and second longitudinal beam 10 are all made of aluminum alloy square tubes.

[0048] The skin plate 2 is a plate body made of aluminum alloy material, and the thickness of the skin plate 2 is preferably 2 mm. In this embodiment, the skin plate 2 includes a first skin plate 11 wrapping the skeleton 1 above the cross beam 4, a second skin plate 12 wrapping the skeleton 1 below the cross beam 4, and a third skin plate 13 connected to the lower end of the second skin plate 12 and exceeding the lower end of the skeleton 1. The second skin plate 12 is arranged vertically, and the included angle between the first skin plate 11 and the second skin plate 12 is 3-6°, preferably 5.5°. The upper end of the first skin plate 11 inclines inward. The included angle between the second skin plate 12 and the third skin plate 13 is 3-5°, preferably 4.7°. The lower end of the third skin plate 13 inclines inward.

[0049] An approximately rectangular first opening 14 is provided at the position of the first skin plate 11 corresponding to the window and door installation frame 34, and the first opening 14 corresponds to the outer shape of the window and door installation frame 34. A second opening 15 is provided on the second skin plate 12, which is located below the first opening 14, and at least one second longitudinal beam 10 is exposed from the second opening 15.

[0050] As Figures 6 to 10 shown in the schematic diagrams of the outer surface, left side, inner surface, three-dimensional outer surface and three-dimensional inner surface of an embodiment of a lightweight special vehicle aluminum alloy car door of the present invention, the car door includes the above-mentioned Figures 1 to 3The diagram shows the door body 16, door and window structure 17, and door panel 18. The door and window structure 17 is mounted on the door and window mounting frame 34 of the door body 16. In this embodiment, the door and window structure 17 uses a gas spring to support the movable window, which includes a door and window 19 and shielding glass 20 mounted on the door and window 19. The upper end of the door and window 19 is rotatably connected to the first skin plate 11 and the corresponding frame 1 part on the upper part of the outer surface of the door and window mounting frame 34 via two flip hinges 21. Two gas springs 22 are installed between the left and right sides of the door and window 19 and the first skin plate 11 and the corresponding frame 1 part on the left and right sides of the outer surface of the door and window mounting frame 34. The lower end of the door and window 19 is locked to the first skin plate 11 and the corresponding frame 1 part on the lower end of the outer surface of the door and window mounting frame 34 via a latch 23. This integrated structural design of the door and window structure 17 facilitates the subsequent shielding performance of the door and window 19. A support guide rail 24 is installed on the first skin plate 11 and the corresponding frame 1 part on the right side of the inner surface of the door and window 19. The support rail 24 supports the shielding glass 20 when the door and window 19 are closed.

[0051] refer to Figure 8 As shown, an approximately rectangular door guard plate 18 is installed on the inner surface of the second skin panel 12 below the door and window mounting hole 8. A protrusion 26 extends inward from the right edge of the door guard plate 18. The design of the door panel 18 greatly improves the overall aesthetics of the door.

[0052] refer to Figure 6 As shown, two door hinges 27 are installed on the upper and lower left sides of the outer surface of the second skin panel 12, a door handle 28 is installed on the middle right side of the outer surface of the second skin panel 12, a limiter 29 is installed on the left side of the second skin panel 12 near the door hinges 27, and a door lock 30 is installed on the middle right side of the second skin panel 12.

[0053] An interior door opening handle 31 is installed on the inner surface of the protrusion 26 of the door panel 18. In this embodiment, the interior door opening handle 31 is made of metal to improve durability. The interior door handle is a through-type handle, which makes it easy for drivers and passengers to adjust the force when opening and closing the door.

[0054] A first sealing strip 32 is provided around the outer edge of the door, and a second sealing strip 33 is provided on the upper part of the outer edge of the door and on the outer side of the first skin panel 11. The second sealing strip 33 is approximately half of the outer edge of the door. The first sealing strip 32 plays a primary sealing role, while the second sealing strip 33 plays an auxiliary sealing role to increase the sealing performance.

[0055] This invention discloses a lightweight special vehicle aluminum alloy door body and a door frame 1 and skin panel 2 made entirely of aluminum alloy. This structure not only achieves further weight reduction of the door but also significantly reduces design complexity, while greatly improving door rigidity compared to traditional doors. The door of this invention eliminates the need for molding molds, significantly reducing manufacturing costs and shortening the manufacturing cycle. The frame 1 is easily manufactured using profiles, and the skin panel 2 can be cut from flat sheets, eliminating the need for molding molds and further reducing manufacturing costs and shortening the manufacturing cycle.

[0056] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A lightweight aluminum alloy door body for special vehicles, characterized in that, The device includes a frame and a skin panel covering the frame, both made of aluminum alloy. The frame includes a frame-shaped frame body and a crossbeam connected to the middle of the frame body. The crossbeam divides the inner cavity of the frame body into an upper chamber and a lower chamber. Multiple first longitudinal beams are connected to one side of the upper chamber. Door and window mounting holes are formed between the first longitudinal beams, the crossbeam, and the frame body. Door and window mounting frames are installed in the door and window mounting holes. A diagonal brace is connected to the lower part of the lower chamber. Multiple second longitudinal beams are connected between the diagonal brace and the crossbeam. A first opening is provided on the skin panel at a position corresponding to the door and window mounting frame. The first opening corresponds to the shape of the door and window mounting frame. A second opening is provided at the lower part of the skin panel, and at least one second longitudinal beam is exposed from the second opening.

2. The lightweight special vehicle aluminum alloy door body as described in claim 1, characterized in that, The frame is made of aluminum alloy square tubes welded together.

3. The lightweight special vehicle aluminum alloy door body as described in claim 1, characterized in that, The skin panel includes a first skin panel that wraps around the frame located on the upper part of the crossbeam, a second skin panel that wraps around the frame located on the lower part of the crossbeam, and a third skin panel that is connected to the lower end of the second skin panel and extends beyond the lower end of the frame.

4. The lightweight special vehicle aluminum alloy door body as described in claim 3, characterized in that, The included angle between the first skin plate and the second skin plate is 3-6°, the second skin plate is vertically oriented, and the upper end of the first skin plate is inclined inward.

5. The lightweight special vehicle aluminum alloy door body as described in claim 4, characterized in that, The included angle between the second skin plate and the third skin plate is 3-5°, and the lower end of the third skin plate is inclined inward.

6. A lightweight aluminum alloy door for special vehicles, characterized in that, Includes the vehicle door body, door and window structure and door guard plate as described in any one of claims 1-5, wherein the door and window structure is installed on the door and window mounting frame of the vehicle door body, and the door guard plate is installed on the skin plate below the door and window mounting frame.

7. A lightweight special vehicle aluminum alloy door as described in claim 6, characterized in that, Two door hinges are installed on one side of the outer surface of the skin panel at the upper and lower positions below the crossbeam. A door handle is installed in the middle of the other side of the outer surface of the skin panel. A limiter is installed on the side of the skin panel near the door hinges. A door lock is installed in the middle of the other side of the skin panel. An inside door opening handle is installed on the inner surface of the door panel near the limiter.

8. A lightweight special vehicle aluminum alloy door as described in claim 6, characterized in that, The door and window structure includes a door and window and shielding glass installed on the door and window. The upper end of the door and window is rotatably connected to the upper end of the door and window mounting frame. Two gas springs are installed between the two sides of the door and window and the two sides of the door and window mounting frame. The lower end of the door and window is locked to the main body of the vehicle door by a latch.

9. A lightweight special vehicle aluminum alloy door as described in claim 8, characterized in that, A support rail is installed on one side of the inner surface of the door or window, and the support rail supports the shielding glass when the door or window is closed.

10. A lightweight special vehicle aluminum alloy door as described in claim 6, characterized in that, A first sealing strip is provided around the outer edge of the car door, and a second sealing strip is provided on the upper part of the outer edge of the car door and on the outer side of the first skin panel.

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