Heavy truck cab body assembly

Abstract

The utility model discloses a heavy truck cab body assembly, which belongs to the technical field of heavy truck cabs and comprises a top cover assembly, a floor assembly, a front wall assembly, a rear wall assembly and a side wall assembly. The floor assembly comprises a floor framework and a floor; the side wall assembly comprises a side wall framework, the side wall framework comprises a door frame area and a side window area, and a side wall skin is welded to the outer side of the side window area; the two sides of the front wall assembly are welded to the two A columns respectively. An air window framework is welded between the upper ends of the two A columns; the rear wall assembly comprises a rear wall framework and a rear wall skin, the bottom of the rear wall framework is welded to the floor framework, the two sides of the rear wall framework are welded to the side wall frameworks, and the top cover framework is welded to the upper portion of the rear wall framework. And the lower part of the top cover assembly is welded with the air window framework, the top cover framework and the two side wall frameworks. The stress structure is a framework type structure formed through welding, the integrity and stability of the vehicle body frame are guaranteed, steel pipes are adopted for welding, direct purchasing and welding can be achieved, mold opening and complex design are not needed, the development period is shortened, and the development cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of heavy truck cab technology, specifically a heavy truck cab body assembly. Background Technology

[0002] Heavy-duty trucks, also known as heavy-duty trucks or heavy-duty vans, refer to freight vehicles with a total vehicle and cargo mass of 14 tons or more, or semi-trailer tractors used for towing cargo. These vehicles typically include various special-purpose vehicles, dump trucks, vans, and some off-road vehicles. Heavy-duty trucks are widely used in industries such as construction, mining, agriculture, and freight transport. They feature powerful engines and robust structures, enabling them to handle heavy loads and harsh terrain.

[0003] Heavy-duty trucks can be classified into several levels depending on the classification criteria. For example, vehicles with a maximum gross vehicle weight exceeding 6 tons but not exceeding 14 tons are classified as heavy-duty trucks, while those exceeding 14 tons are called extra-heavy-duty trucks. In addition, heavy-duty trucks can also be subdivided by fuel type (such as diesel, natural gas, or electric) and application field (such as construction, mining, or logistics).

[0004] The cab assembly is a crucial component of heavy-duty trucks, commonly referred to as the cab or body. The cab assembly comprises several sub-assemblies, such as the floor assembly, left side panel assembly, right side panel assembly, front panel assembly, rear panel assembly, roof assembly, and the left and right door assemblies. The cab design must not only meet functional requirements but also consider passenger comfort, safety, and ease of operation. Furthermore, the rigidity and strength of the cab are also key design factors.

[0005] Traditional heavy-duty truck cab assemblies mostly use sheet metal stamping processes, which require a large number of sheet metal stamping dies. In addition, in order to ensure collision safety and local strength, there are many parts, which leads to problems such as high product development difficulty, long cycle and high investment cost. Utility Model Content

[0006] To address the problems of traditional heavy-duty truck cab assembly, which mostly uses sheet metal stamping technology, requires a large number of sheet metal stamping dies, and involves a large number of parts to ensure collision safety and local strength, resulting in high product development difficulty, long cycle, and high investment costs, this utility model provides a heavy-duty truck cab assembly.

[0007] This utility model is achieved through the following technical solution:

[0008] A heavy-duty truck cab assembly includes a roof assembly, a floor assembly, a front bulkhead assembly, a rear bulkhead assembly, and side bulkhead assemblies on both sides. The floor assembly includes a floor frame and a floor section positioned and installed on the upper side of the floor frame. The side bulkhead assembly includes side bulkhead frames welded to both sides of the floor frame, each side bulkhead frame including a door frame area and a side window area. A-pillars and B-pillars are formed on the front and rear sides of the door frame area, and a side bulkhead skin is welded to the outer side of the side window area. The front bulkhead assembly is welded to two A-pillars on both sides. A windshield frame is welded between the upper ends of the two A-pillars. The rear bulkhead assembly includes a rear bulkhead frame and a rear bulkhead skin welded to the rear bulkhead frame. The bottom of the rear bulkhead frame is welded to the rear part of the floor frame, and the sides of the rear bulkhead frame are welded to the rear parts of the side bulkhead frames. A roof frame is welded to the upper part of the rear bulkhead frame. The lower edge of the roof assembly is welded to the windshield frame, the roof frame, and the side bulkhead frames.

[0009] A further improvement of this utility model is that the floor frame includes several floor beams that run horizontally through the left and right sides; the A-column and B-column are welded to the corresponding floor beams respectively; a footboard support beam is connected between the bottom of the corresponding A-column and B-column, and a footboard is positioned and installed on the upper side of the footboard support beam.

[0010] A further improvement of this utility model is that the bottom of the A-pillar and the corresponding floor beam, and the bottom of the B-pillar and the corresponding floor beam are respectively welded together by L-shaped beams; the tread is connected and fixed to the horizontal section of the L-shaped beam.

[0011] A further improvement of this utility model is that the inner side of the pedal is connected to a connecting plate that is fixed to the outer side of the vertical section of the L-shaped beam.

[0012] A further improvement of this utility model is that an inclined support beam is provided to support the corner of the L-shaped beam and the corresponding floor beam.

[0013] A further improvement of this utility model is that the floor is provided with cross-arranged reinforcing protrusions.

[0014] A further improvement of this utility model is that the front assembly includes a front upper through beam and a front lower through beam that run through the left and right sides; both ends of the front upper through beam and the front lower through beam are welded to the two A-pillars.

[0015] A further improvement of this utility model is that a window adapted to the side window area is provided on the side skin, and the window is fitted with side window glass through a sealing gasket.

[0016] A further improvement of this utility model is that the rear frame has a "well" shaped structure.

[0017] A further improvement of this utility model is that the rear part of the floor is inclined and bent upwards.

[0018] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0019] The load-bearing structure of each assembly is a welded frame structure, which effectively ensures the integrity and stability of the vehicle body frame. Moreover, the frame structure is made of welded steel pipes, which can be directly purchased and welded without the need for mold making and complex design, greatly shortening the development cycle and reducing development costs. The overall structure is simple, easy to form, and has good strength. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0022] Figure 2 This is an exploded view of a specific embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the floor assembly structure according to a specific embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the pedal connection in a specific embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the front assembly connection structure according to a specific embodiment of the present utility model.

[0026] Figure 6 This is a schematic diagram of the side frame structure of a specific embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the side frame and side skin of a specific embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the side panel assembly of a specific embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram of the component breakdown of the rear enclosure of a specific embodiment of the present invention.

[0030] In the attached diagram: 1. Roof assembly; 2. Floor assembly; 21. Floor crossbeam; 22. Floor; 23. Reinforcing protrusion; 24. Pedal; 25. Connecting plate; 26. Side panel; 27. L-shaped beam; 28. Diagonal support beam; 29. ​​Pedal support beam; 3. Front bulkhead assembly; 31. Upper front bulkhead through beam; 32. Lower front bulkhead through beam; 4. Side bulkhead assembly; 41. Side bulkhead frame; 42. Door frame area; 43. Side window area; 44. Side bulkhead skin; 45. Sealing gasket; 46. Side window glass; 5. Rear bulkhead assembly; 51. Rear bulkhead frame; 52. Rear bulkhead skin; 6. Roof frame; 7. Window frame; 8. A-pillar; 9. B-pillar. Detailed Implementation

[0031] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0032] like Figure 1-9 As shown, this utility model discloses a heavy-duty truck cab body assembly, including a top cover assembly 1, a floor assembly 2, a front enclosure assembly 3, a rear enclosure assembly 5, and side enclosure assemblies 4 on the left and right sides; the floor assembly 2 includes a welded floor frame and a floor 22 positioned and installed on the upper side of the floor frame; the side enclosure assembly 4 includes a welded side enclosure frame 41 welded to the left and right sides of the floor frame, the side enclosure frame 41 includes a front door frame area 42 and a rear side window area 43, the front and rear sides of the door frame area 42 are A-pillars 8 and B-pillars 9, and the outer side of the side window area 43 is welded with a side enclosure cover. 44; the front assembly 3 is welded to the two A-pillars 8 on both sides respectively; a welded windshield frame 7 is welded between the upper ends of the two A-pillars 8; the rear assembly 5 includes a welded rear frame 51 and a rear skin 52 welded to the outer side (rear side) of the rear frame 51, the bottom of the rear frame 51 is welded to the rear part of the floor frame, the left and right sides of the rear frame 51 are welded to the rear parts of the left and right side frames 41, and an arched roof frame 6 is welded to the upper part of the rear frame 51; the lower edge of the roof assembly 1 is welded to the windshield frame 7, the roof frame 6 and the side frames 41 respectively.

[0033] The main body assembly of this heavy-duty truck cab features a welded, frame-like structure for each component, effectively ensuring the integrity and stability of the vehicle frame. Furthermore, the frame structure is constructed from welded steel pipes, allowing for direct procurement and welding without the need for mold making or complex designs, significantly shortening the development cycle and reducing development costs. The overall structure is simple, easy to form, and possesses high strength.

[0034] To ensure the structural strength of the floor assembly 2, reinforcing protrusions 23 are arranged in a cross pattern on the floor 22. The reinforcing protrusions 23 are formed by stamping.

[0035] The floor frame includes several horizontal floor beams 21 running left and right, with vertical floor beams welded between adjacent horizontal floor beams 21. A-pillars 8 and B-pillars 9 are welded to their corresponding horizontal floor beams 21. A footboard support beam 29 connects the bottom of the corresponding A-pillars 8 and B-pillars 9, and a footboard 24 is positioned and installed on the upper side of the footboard support beam 29. A recessed step design allows for easy entry and exit into the cab; the structure is simple, with a reliable connection between the side assembly 4 and the floor assembly 2. The side frame 41 uses a welded frame structure to construct a rectangular door frame area 42, allowing the door frame area 42 to reach a height of 2m, enabling drivers and passengers to enter and exit the cab upright, facilitating easy entry and exit.

[0036] Furthermore, the bottom of the A-pillar 8 and the corresponding floor beam 21, and the bottom of the B-pillar 9 and the corresponding floor beam 21, are welded together via L-shaped beams 27; the pedal 24 is fixedly connected to the horizontal section of the L-shaped beam 27. This achieves a recessed design for the pedal 24, allowing for one-step entry into the cab while effectively ensuring the stability of the pedal 24's installation.

[0037] Furthermore, the inner side of the pedal 24 is connected to a connecting plate 25 that is fixed to the outer side of the vertical section of the L-shaped beam 27. Side plates 26 are connected to the front and rear sides of the pedal 24. The front side plate 26 is fixed (welded) to the L-shaped beam 27, the corresponding floor beam 21, and the A-pillar 8. The rear side plate 26 is fixedly connected (welded) to the L-shaped beam 27, the corresponding floor beam 21, and the B-pillar 9. This effectively protects the area of ​​the pedal 24, prevents slipping and ensures safety when getting on and off the vehicle.

[0038] Furthermore, the pedal 24, connecting plate 25, and side plate 26 are integrally bent from steel plates. This achieves the integrity and stability of the pedal 24 and effectively simplifies the assembly process.

[0039] Furthermore, a diagonal support beam 28 is provided to support the corner of the L-shaped beam 27 and the corresponding floor beam 21, thereby improving the structural strength of the tread area 24.

[0040] The rear of the floor 22 is angled upwards and bent, and the floor frame at its bottom is also angled upwards at the rear. This design ensures sufficient interior space in the cab while making room for components at the rear bottom of the cab, achieving a compact and rational arrangement of all components.

[0041] The front assembly 3 includes an upper front beam 31 and a lower front beam 32 that run through the left and right sides. Several front vertical beams are welded between the upper front beam 31 and the lower front beam 32. Both ends of the upper front beam 31 and the lower front beam 32 are welded to the A-pillars 8 on both sides. The front assembly 3 has a simple structure, is easy to form, and has good strength.

[0042] The side panel 44 has a window adapted to the side window area 43, and the window is fitted with side window glass 46 through a sealing gasket 45. The upper part of the side window area 43 is rectangular and the lower part is trapezoidal. The entire upper rectangular area can be used as the installation area for the side window glass 46, effectively increasing the area of ​​the side window glass 46, increasing the field of vision to the side and rear, minimizing blind spots, and improving the driver's perception of the surrounding environment.

[0043] The rear frame 51 has a "well" shaped structure. It is easy to form, has good structural strength, and effectively leaves space for openings on the rear skin 52.

[0044] The main body assembly of this heavy-duty truck cab features a welded, frame-like structure for each component, effectively ensuring the integrity and stability of the vehicle frame. Furthermore, the frame structure is constructed from welded steel pipes, allowing for direct procurement and welding without the need for mold making or complex designs, significantly shortening the development cycle and reducing development costs. The overall structure is simple, easy to form, and possesses high strength.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy duty truck cab body assembly, characterized by, The assembly includes a roof assembly (1), a floor assembly (2), a front enclosure assembly (3), a rear enclosure assembly (5), and side enclosure assemblies (4) on both sides; the floor assembly (2) includes a floor frame and a floor (22) positioned and installed on the upper side of the floor frame; the side enclosure assembly (4) includes a side enclosure frame (41) welded to both sides of the floor frame, the side enclosure frame (41) including a door frame area (42) and a side window area (43), the door frame area (42) forming A-pillars (8) and B-pillars (9) on the front and rear sides, the side window area (43) Side panel skin (44) is welded to the outside; the front assembly (3) is welded to the two A-pillars (8) on both sides respectively; a windshield frame (7) is welded between the upper ends of the two A-pillars (8); the rear assembly (5) includes a rear frame (51) and a rear panel skin (52) welded to the rear frame (51), the bottom of the rear frame (51) is welded to the rear part of the floor frame, the two sides of the rear frame (51) are welded to the rear part of the side frame (41), and a roof frame (6) is welded to the upper part of the rear frame (51); The lower edge of the cover assembly (1) is welded to the windshield frame (7), the roof frame (6), and the side frame (41) respectively; the floor frame includes several floor beams (21) that run from left to right; the A-pillar (8) and B-pillar (9) are welded to the corresponding floor beams (21) respectively; a pedal support beam (29) is connected between the bottom of the corresponding A-pillar (8) and B-pillar (9), and a pedal (24) is positioned and installed on the upper side of the pedal support beam (29); the bottom of the A-pillar (8) is connected to the corresponding floor beam (21). The bottom of the B-pillar (9) and the corresponding floor beam (21) are welded together by L-shaped beams (27); the pedal (24) is connected and fixed to the horizontal section of the L-shaped beam (27); the front assembly (3) includes a front upper through beam (31) and a front lower through beam (32) that run through the left and right sides; both ends of the front upper through beam (31) and the front lower through beam (32) are welded to the two A-pillars (8); the rear frame (51) is in the shape of a "well"; the rear of the floor (22) is bent upwards.

2. The heavy duty truck cab body assembly of claim 1, wherein, The inner side of the pedal (24) is connected to a connecting plate (25) that is fixed to the outer side of the vertical section of the L-shaped beam (27).

3. The heavy duty truck cab body assembly of claim 1, wherein, The corner of the L-shaped beam (27) is supported by a diagonal support beam (28) between it and the corresponding floor beam (21).

4. The heavy duty truck cab body assembly of claim 1, wherein, The floor (22) is provided with cross-arranged reinforcing protrusions (23).

5. The heavy duty truck cab body assembly of claim 1, wherein, The side panel (44) has a window adapted to the side window area (43), and the window is fitted with side window glass (46) through a sealing gasket (45).

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