A frame structure of a truck body and a truck
By installing an extension plate and a front compartment crossbeam at the front of the A-pillar of the truck body, the collision buffer space is increased and the wind resistance is reduced, solving the problems of narrow cab and high wind resistance, and achieving a safer and more economical truck design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-07
- Publication Date
- 2026-03-03
AI Technical Summary
The flat-nose frame structure of existing truck bodies results in a compact, cramped, and uncomfortable cab design, a small front-end collision buffer zone, and high wind resistance, which increases fuel consumption.
Left and right extension plates are respectively installed at the lower front end of the left and right A-pillars, with forward-extending protrusions on them to connect to the front cabin crossbeam, increasing the collision buffer space and reducing wind resistance through the oblique design.
It enhances the truck body's collision energy absorption and buffering capabilities, ensures survival space in the cab, reduces wind resistance, and improves the overall vehicle economy.
Smart Images
Figure CN115892254B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of truck structure technology, and specifically relates to a frame structure for a truck body and a truck. Background Technology
[0002] Most trucks currently used in China adopt a cab-over frame structure. This is partly to allow trucks to carry larger volumes of cargo while adhering to regulations regarding fixed length, and partly because cab-over trucks offer better visibility and maneuverability, making them more adaptable to my country's complex road conditions. While the square frame of the cab-over structure reduces the truck's length to some extent, it also results in disadvantages such as a compact cab design, cramped space, and poor comfort. In particular, the frontal collision buffer space of cab-over trucks is relatively small, making the entire front end more susceptible to being crushed into a flat surface in a frontal collision, increasing driving hazards. Furthermore, because the front of a cab-over truck is almost perpendicular to the ground, it generates significant air resistance during driving, often requiring more fuel to counteract this resistance. Summary of the Invention
[0003] To address the aforementioned problems, this invention discloses a truck body frame structure and a truck, in order to overcome or at least partially solve the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The present invention provides a frame structure for a truck body, the frame structure including a body frame, a left side panel and a right side panel;
[0006] The left side panel is fixed to the left side of the vehicle body frame, and the right side panel is fixed to the right side of the vehicle body frame. The front end of the left side panel is provided with a left outer panel, and the front end of the right side panel is provided with a right outer panel. The left outer panel and the left inner panel provided on the left side of the vehicle body frame are assembled to form a left A-pillar, and the right outer panel and the right inner panel provided on the right side of the vehicle body frame are assembled to form a right A-pillar.
[0007] A left extension plate is fixed to the lower front end of the left A-pillar, and a right extension plate is fixed to the lower front end of the right A-pillar. Both the left and right extension plates have forward-extending protrusions, and a front cabin crossbeam is provided between the protrusions of the left and right extension plates.
[0008] Furthermore, the left extension plate and the right extension plate are respectively fixedly connected to the left A-pillar and the right A-pillar by welding.
[0009] Furthermore, the front cabin crossbeam includes a first crossbeam and a second crossbeam;
[0010] The two ends of the first crossbeam are fixedly connected to the front end of the protrusion on the left extension plate and the front end of the protrusion on the right extension plate, respectively. The two ends of the second crossbeam are fixedly connected to the upper end of the protrusion on the left extension plate and the upper end of the protrusion on the right extension plate, respectively.
[0011] Furthermore, the frame structure also includes a windshield crossbeam, a floor crossbeam, and a front fascia;
[0012] The two ends of the windshield crossbeam are fixedly connected to the middle positions of the left A-pillar and the right A-pillar, respectively. The two ends of the bottom plate crossbeam are fixedly connected to the lower ends of the left A-pillar and the right A-pillar, respectively. The front cover is fixed between the windshield crossbeam and the bottom plate crossbeam.
[0013] Furthermore, the upper side of the left A-pillar is connected to the upper side of the left extension plate, and the upper side of the right A-pillar is connected to the upper side of the right extension plate, and each of the upper sides is a slanted side that is tilted forward at a preset angle.
[0014] Furthermore, both the left extension plate and the right extension plate include an inner extension plate and an outer extension plate, and the inner extension plate and the outer extension plate are fixedly connected by spot welding.
[0015] Furthermore, both the inner and outer plates of the extension plate are formed by stamping.
[0016] Furthermore, both the left and right A-pillars are equipped with observation windows.
[0017] Furthermore, the frame structure also includes a hood;
[0018] The hood is fixed above the vehicle body frame, and the front side of the hood is a downward-sloping structure.
[0019] Furthermore, the frame structure also includes a rear enclosure;
[0020] The rear section is fixed to the rear of the vehicle body frame.
[0021] In another aspect, the present invention provides a truck comprising the frame structure of the truck body described above.
[0022] The advantages and beneficial effects of this invention are:
[0023] In the truck body frame structure of the present invention, a left extension plate and a right extension plate are respectively provided at the lower front end of the left A-pillar and the right A-pillar, and both the left and right extension plates are provided with forward-extending protrusions. A front compartment crossbeam is provided between the protrusions of the left and right extension plates, which increases the collision buffer space at the front end of the truck body, thereby improving the energy absorption and buffering capacity of the truck body during a collision, ensuring the survival space of the occupants in the cab after a collision. In addition, this frame structure can effectively reduce the area of the positive pressure zone of the truck body, making the airflow fit better and the drag coefficient lower during the vehicle's operation, thereby improving the overall vehicle economy. Attached Figure Description
[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0025] Figure 1 This is an exploded structural view of the frame structure of a truck body in one embodiment of the present invention;
[0026] Figure 2 This is a partial three-dimensional structural view of the frame structure of a truck body in one embodiment of the present invention;
[0027] Figure 3 for Figure 2 Right view of the three-dimensional structure diagram;
[0028] Figure 4 This is a left structural view of the truck body frame structure in one embodiment of the present invention;
[0029] Figure 5 for Figure 4 Cross-sectional view at point AA.
[0030] In the diagram: 1. Body frame; 2. Left side panel; 3. Right side panel; 4. Left A-pillar; 4-1. Left outer panel; 4-2. Left inner panel; 5. Right A-pillar; 5-1. Right outer panel; 6. Left extension panel; 7. Right extension panel; 8. Front compartment crossbeam; 8-1. First crossbeam; 8-2. Second crossbeam; 9. Windshield crossbeam; 10. Front bulkhead; 11. Extension panel inner panel; 12. Extension panel outer panel; 13. Observation window; 14. Roof; 15. Rear bulkhead. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0032] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0033] One embodiment of the present invention discloses a frame structure for a truck body, such as... Figure 1 As shown, the frame structure includes a vehicle body frame 1, a left side panel 2, and a right side panel 3.
[0034] The left side panel 2 is assembled and fixed to the left side of the body frame 1 by welding, and the right side panel 3 is assembled and fixed to the right side of the body frame 1 by welding. The front end of the left side panel 2 is provided with a left outer panel 4-1, and the front end of the right side panel 3 is provided with a right outer panel 5-1. The left outer panel 4-1 and the left inner panel 4-2 provided on the left side of the body frame 1 are assembled to form the left A-pillar 4, and the right outer panel 5-1 and the right inner panel provided on the right side of the body frame 1 are assembled to form the right A-pillar 5.
[0035] Furthermore, such as Figures 2-4 As shown, a left extension plate 6 is fixed to the lower front end of the left A-pillar 4, and a right extension plate 7 is fixed to the lower front end of the right A-pillar 5. The left extension plate 6 and the right extension plate 7 can increase the buffer distance B of the truck body during a collision, thereby increasing the buffer space of the truck body in an impact. Furthermore, both the left extension plate 6 and the right extension plate 7 are provided with forward-extending protrusions. A front compartment crossbeam 8 is provided between the protrusions of the left extension plate 6 and the protrusions of the right extension plate 7. This can increase the connection strength between the left extension plate 6 and the right extension plate 7, thereby increasing the ability of the buffer space to resist impact and improving the rigidity of the truck body.
[0036] In summary, in the truck body frame structure of this embodiment, by setting a left extension plate and a right extension plate at the lower front end of the left A-pillar and the right A-pillar respectively, and both the left and right extension plates have forward-extending protrusions, and a front compartment crossbeam is provided between the protrusions of the left and right extension plates, the collision buffer space at the front of the truck body is increased, thereby improving the energy absorption and buffering capacity of the truck body during a collision, ensuring the survival space of the occupants in the cab after a collision. Furthermore, because this frame structure adds an impact buffer space at the lower front of the truck body, making the truck body partially a forward-protruding structure, it can effectively reduce the area of the positive pressure zone of the truck body, making the airflow fit better and the drag coefficient lower during the vehicle's operation, thereby improving the overall vehicle economy.
[0037] In this implementation, such as Figures 1-3 As shown, the front cabin crossbeam includes a first crossbeam 8-1 and a second crossbeam 8-2 arranged in parallel.
[0038] Specifically, the two ends of the first crossbeam 8-1 are fixedly connected to the front end of the protrusion on the left extension plate 6 and the front end of the protrusion on the right extension plate 7, respectively. The two ends of the second crossbeam 8-2 are fixedly connected to the upper end of the protrusion on the left extension plate 6 and the upper end of the protrusion on the right extension plate 7, respectively. The rear ends of the left extension plate 6 and the right extension plate 7 are fixedly connected to the left A-pillar 4 and the right A-pillar 5, respectively. This can improve the structural strength of the buffer space formed by the left extension plate 6 and the right extension plate 7.
[0039] In addition, such as Figure 2 As shown, the frame structure also includes a windshield crossbeam 9, a bottom plate crossbeam (not shown in the figure), and a front fascia 10.
[0040] The two ends of the windshield crossbeam 9 are fixedly connected to the middle positions of the left A-pillar 4 and the right A-pillar 5, respectively. The two ends of the floor crossbeam are fixedly connected to the lower ends of the left A-pillar 4 and the right A-pillar 5, respectively. The front bulkhead 10 is fixed between the windshield crossbeam 9 and the floor crossbeam. In this way, the front bulkhead 10, the left A-pillar 4, the right A-pillar 5, the left extension plate 6, the right extension plate 7, the first crossbeam 8-1 and the second crossbeam 8-2 form a closed loop front buffer energy absorption space of the front bulkhead 10. This space can effectively absorb the impact energy generated by the truck body in a frontal collision, ensuring the safety of the people in the cab. In addition, the windshield crossbeam 9 is located in front of the floor crossbeam, which makes the front bulkhead 10 tilted upward towards the front of the truck body. This can increase the activity space in the cab and also provide more space for the overall vehicle layout.
[0041] In this embodiment, as Figure 4As shown, the upper edge of the left A-pillar 4 connects to the upper edge of the left extension plate 6, and the upper edge of the right A-pillar 5 connects to the upper edge of the right extension plate 7, making the overall structure of the truck body more aesthetically pleasing. Furthermore, each upper edge is a sloping side tilted forward at a preset angle α. This not only increases the width of the truck A-pillar in the truck's longitudinal direction, improving the structural strength of the truck body without altering the original door frame structure, but also makes the front face of the truck body almost at a preset angle α, thereby reducing the truck body's drag coefficient and improving the overall vehicle's fuel economy. The preset angle α can be adjusted according to different vehicle models and design needs to ensure low drag on the truck body while maintaining both aesthetics and fuel economy.
[0042] In addition, such as Figures 2-4 As shown, observation windows 13 are provided on both the left A-pillar 4 and the right A-pillar 5. The observation windows 13 are preferably triangular, which makes the A-pillar structure more robust. The design of the observation windows 13 can reduce the driver's blind spot and thus ensure driving safety.
[0043] Furthermore, such as Figure 1 and Figure 5 As shown, both the left extension plate 6 and the right extension plate 7 include an inner extension plate 11 and an outer extension plate 12. The inner extension plate 11 and the outer extension plate 12 are fixedly connected by spot welding, which not only makes the connection more robust but also simplifies the structure. Furthermore, both the inner extension plate 11 and the outer extension plate 12 are formed by stamping, ensuring that they have good structural strength.
[0044] Furthermore, both the left and right extension plates are fixedly connected to the left and right A-pillars respectively by welding, i.e. Figure 5 As shown, the inner panel 11 of the extension plate is welded to the left inner panel 4-2, and the outer panel 12 of the extension plate is welded to the left outer panel 4-1. Of course, in other embodiments, the left extension plate and the left A-pillar are integrated, and the right extension plate and the right A-pillar are integrated, which can improve the overall integrity of the frame structure.
[0045] In this embodiment, as Figure 1 and Figure 4 As shown, the frame structure also includes a front roof 14.
[0046] The hood 14 is fixed above the vehicle frame 1. The front side of the hood 14 has a downward sloping structure, which is more in line with the streamlined, low-drag design, thereby reducing the drag coefficient of the hood 14. Furthermore, through the aforementioned sloping structure design, the truck body does not need to be equipped with an additional drag shield, thus reducing the overall manufacturing cost of the vehicle.
[0047] Furthermore, the roof is made of SMC (Sheet Molding Compound, unsaturated polyester glass fiber reinforced sheet molding compound). Roofs made of SMC are lighter than traditional sheet metal roofs and offer advantages such as lower production costs (e.g., lower mold clamping and inspection), lightweight construction, reduced development costs, and shorter development cycles. Additionally, SMC has a much lower thermal conductivity than sheet metal; therefore, using SMC to manufacture the roof can reduce the design costs of thermal insulation components under the same ambient temperature.
[0048] Furthermore, such as Figure 1 As shown, the frame structure also includes a rear enclosure 15.
[0049] The rear section 15 is fixed to the rear of the vehicle frame 1, and the left side section 2, right side section 3, front section 10 and rear section 15 together form the cab of the truck body.
[0050] Another embodiment of the present invention discloses a truck, which includes the frame structure of the truck body in the above embodiments, and has advantages such as good safety performance and low wind resistance.
[0051] The above description is merely a specific embodiment of the present invention. Under the teachings of the present invention, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A frame structure of a truck body, characterized in that, The frame structure comprises a vehicle body frame (1), a left side wall (2) and a right side wall (3); The left side wall (2) is assembled and fixed on the left side of the vehicle body frame (1), the right side wall (3) is assembled and fixed on the right side of the vehicle body frame (1), and the front end of the left side wall (2) is provided with a left side outer plate (4-1), the front end of the right side wall (3) is provided with a right side outer plate (5-1), the left side outer plate (4-1) and the left side inner plate (4-2) arranged on the left side of the vehicle body frame (1) are assembled to form a left side A column (4), and the right side outer plate (5-1) and the right side inner plate arranged on the right side of the vehicle body frame (1) are assembled to form a right side A column (5); the front end of the left side A column (4) is fixed with a left side extension plate (6), the front end of the right side A column (5) is fixed with a right side extension plate (7), the left side extension plate (6) and the right side extension plate (7) are both provided with a protruding portion extending forward, and the protruding portion of the left side extension plate (6) and the protruding portion of the right side extension plate (7) are provided with a front compartment cross beam (8) therebetween; The frame structure further comprises a windshield cross beam (9) located in front of the bottom plate cross beam, so that the front wall (10) is inclined upward in the direction of the front end of the truck body, so as to increase the activity space in the cab and provide more space for the overall vehicle arrangement; The two ends of the windshield cross beam are fixedly connected with the middle positions of the left side A column (4) and the right side A column (5) respectively, the two ends of the bottom plate cross beam are fixedly connected with the lower ends of the left side A column (4) and the right side A column (5) respectively, the front wall (10) is fixed between the windshield cross beam (9) and the bottom plate cross beam, and a closed-loop front-end buffer energy-absorbing space of the front wall (10) is formed by the front wall (10), the left side A column (4), the right side A column (5), the left side extension plate (6), the right side extension plate (7), the first cross beam (8-1) and the second cross beam (8-2), so as to absorb the impact energy generated when the truck body is subjected to a frontal impact, and ensure the safety of the personnel in the cab.
2. The frame structure of a truck body according to claim 1, characterized in that, The left side extension plate and the right side extension plate are both fixedly connected with the left side A column and the right side A column by welding respectively.
3. The frame structure of a truck body according to claim 1, characterized in that, The front compartment cross beam comprises a first cross beam and a second cross beam; The two ends of the first cross beam are fixedly connected with the front ends of the protruding portions on the left side extension plate and the right side extension plate respectively, and the two ends of the second cross beam are fixedly connected with the upper ends of the protruding portions on the left side extension plate and the right side extension plate respectively.
4. The frame structure of a truck body according to claim 1, characterized in that, The upper side edges of the left side A column and the right side A column are connected with the upper side edges of the left side extension plate and the right side extension plate respectively, and each of the upper side edges is an inclined edge with a forward inclination at a preset angle.
5. The frame structure of a truck body according to claim 1, characterized in that, The left side extension plate and the right side extension plate both comprise an extension plate inner plate and an extension plate outer plate, and the extension plate inner plate and the extension plate outer plate are fixedly connected by spot welding.
6. The frame structure of a truck body according to claim 5, characterized in that, The extension plate inner plate and the extension plate outer plate are both formed by stamping.
7. The frame structure of a truck body according to claim 1, characterized in that, The left side A column and the right side A column are both provided with a viewing window.
8. The frame structure of a truck body according to any one of claims 1 to 7, characterized in that, The frame structure further comprises a cab roof; The cab roof is fixed above the vehicle body frame, and a front side of the cab roof is an inclined structure downwardly inclined.
9. A truck characterized in that The truck comprises the frame structure of the truck body according to any one of claims 1-8.
Citation Information
Patent Citations
Automobile body skeleton structure and automobile with same
CN108189911A
Light truck cab and optimization method thereof
CN112829839A
Automobile body and vehicle
CN206841526U