U-shaped container and mining dump truck

Abstract

The utility model discloses a U type container and mining dump truck, including the bottom plate, side plate, front plate and brim that constitute the container main body, the bottom plate is U type, the outer wall of bottom plate is equipped with the bottom plate horizontal reinforcing rib along the horizontal direction of U type container, the bottom plate horizontal reinforcing rib includes: first flitch, first flitch, second flitch, first flitch, second flitch, third flitch, fourth flitch, third flitch, fourth flitch, fourth flitch, fourth flitch and fifth flitch. The first flitch is in a U shape matched with the outer contour of the cross section of the bottom plate, and the first flitch is fixedly connected to the outer wall of the bottom plate; the first cover plate is also in a U shape and is located below the first flitch plate, a distance is kept between the middle of the first cover plate and the first flitch plate, and the distance between the first cover plate and the first flitch plate is gradually reduced from the arc transition position to the end till the end of the first cover plate is fixedly connected with the end of the first flitch plate; and the first reinforcing rib vertical plate is arranged between the first flitch and the first cover plate. According to the utility model, the material consumption is reduced while the structural rigidity is ensured, the dead weight of the container is reduced, and the necessary bearing capacity is maintained.

Description

Technical Field

[0001] This utility model relates to the field of dump truck cargo box technology. More specifically, this utility model relates to a U-shaped cargo box and a mining dump truck. Background Technology

[0002] Off-highway dump trucks are key equipment in mining operations, characterized by frequent loading and unloading, heavy loads, short transport distances, and long continuous working hours. The cargo box, as a major component of the dump truck, affects its total weight and bears a loading load several times its own weight. To comply with energy conservation and emission reduction requirements for mining vehicles, weight reduction of the cargo box is necessary to achieve overall lightweighting. However, under harsh operating conditions in mining areas, vehicle bumps cause sliding friction between the material and the cargo box's interior, frequent loading and unloading result in severe impacts on the cargo box's interior, and material buildup on the visor all affect the cargo box's service life. Therefore, while pursuing lightweight cargo boxes, it is essential to ensure high strength of the cargo box's interior and enhance the safety of the visor.

[0003] Most existing dump truck cargo boxes adopt a U-shaped design with the side panels and bottom plate connected by arcs. Although this achieves weight reduction and anti-sticking effects to some extent, in order to ensure the rigidity of the cargo box, the design usually involves arranging a large number of channel-shaped reinforcing ribs on the main body of the cargo box. This structure undoubtedly increases the weight, resulting in limited weight reduction effect. Utility Model Content

[0004] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0005] To achieve these objectives and other advantages according to this utility model, a U-shaped cargo box is provided, comprising a bottom plate, side plates, a front plate, and a visor constituting the main body of the cargo box. The bottom plate is U-shaped, and the outer wall of the bottom plate is provided with transverse reinforcing ribs along the transverse direction of the U-shaped cargo box. The transverse reinforcing ribs include:

[0006] The first plate is U-shaped and matches the outer contour of the cross-section of the base plate. The first plate is fixed to the outer wall of the base plate.

[0007] The first cover plate is also U-shaped and located below the first patch plate. The middle part of the first cover plate is spaced apart from the first patch plate. The distance between the first cover plate and the first patch plate gradually decreases from the arc transition point to the end, until the end of the first cover plate is fixedly connected to the end of the first patch plate.

[0008] The first reinforcing rib upright plate is disposed between the first mounting plate and the first cover plate.

[0009] Preferably, the U-shaped cargo box further includes:

[0010] A pair of longitudinal reinforcing ribs on the bottom plate, the pair of longitudinal reinforcing ribs on the bottom plate are arranged along the longitudinal direction of the U-shaped cargo box on the outer wall of the bottom plate, the pair of longitudinal reinforcing ribs on the bottom plate are symmetrical along the longitudinal center line of the U-shaped cargo box, and the longitudinal reinforcing ribs on the bottom plate are provided with transverse through holes for the transverse reinforcing ribs on the bottom plate to pass through.

[0011] A pair of flip hinge seats, wherein the pair of flip hinge seats are disposed on the outer wall of the base plate and are respectively located behind the pair of longitudinal reinforcing ribs of the base plate;

[0012] The longitudinal reinforcing rib of the base plate has a groove-shaped cross-section with its opening facing the outer wall of the base plate, and the front end of the longitudinal reinforcing rib of the base plate is provided with a sealing plate. The flip hinge seat closes the rear end of the longitudinal reinforcing rib of the base plate, so that the longitudinal reinforcing rib of the base plate forms a closed box-shaped structure.

[0013] Preferably, the tail of the bottom plate is upturned, and a rear transverse rib is provided on the outer wall of the tail of the bottom plate along the transverse direction of the U-shaped cargo box. The rear transverse rib is U-shaped and matches the outer contour of the cross section of the tail of the bottom plate. The cross section of the rear transverse rib is a groove with the opening facing the outer wall of the bottom plate. A rear transverse rib upright plate is provided inside the rear transverse rib.

[0014] Preferably, the U-shaped cargo box further includes:

[0015] The side plate has reinforcing ribs, which are arranged along the longitudinal direction of the U-shaped cargo box on the upper part of the outer wall of the side plate;

[0016] Side panel edge beams are provided at the top of the side panel along the longitudinal direction of the U-shaped cargo box, and connect the side panel to the reinforcing ribs on the side panel;

[0017] The rear transverse rib extends to the outer wall of the side panel and is fixedly connected to the outer wall of the side panel. The rear transverse rib is also fixedly connected to the reinforcing rib on the side panel to form the outer frame skeleton of the cargo box.

[0018] Preferably, the front panel is U-shaped, and a transverse reinforcing rib is provided in the middle of the outer wall of the front panel along the transverse direction of the U-shaped cargo box.

[0019] Preferably, the U-shaped cargo box further includes:

[0020] A reinforcing plate is provided in the middle of the outer wall of the side panel along the longitudinal direction of the U-shaped cargo box. The reinforcing plate in the side panel is at the same height as the transverse reinforcing rib of the front panel, and the front end of the reinforcing plate in the side panel is fixedly connected to the transverse reinforcing rib of the front panel to form the middle skeleton of the cargo box.

[0021] Preferably, the connection between the reinforcing plate in the side plate and the transverse reinforcing rib of the front plate is staggered from the connection between the front plate and the side plate.

[0022] Preferably, the front end of the reinforcing plate in the side plate extends beyond the front end of the side plate, so that the connection between the reinforcing plate in the side plate and the transverse reinforcing rib of the front plate is located on the outer wall of the front plate.

[0023] Preferably, the transverse reinforcing ribs of the front plate include:

[0024] The second panel is U-shaped and matches the outer contour of the cross-section of the front panel. The second panel is fixed to the outer wall of the front panel.

[0025] The second cover plate is also U-shaped and located in front of the second patch plate. The middle part of the second cover plate maintains a distance from the second patch plate. The distance between the second cover plate and the second patch plate gradually decreases from the arc transition point to the end until the end of the second cover plate is fixedly connected to the end of the second patch plate.

[0026] The second reinforcing rib upright plate is disposed between the second side plate and the second cover plate.

[0027] Preferably, the brim is an upwardly convex arc-shaped plate;

[0028] The U-shaped cargo box also includes:

[0029] A transverse reinforcing rib for the brim is fixedly connected to the lower surface of the brim along the transverse direction of the U-shaped cargo box;

[0030] A pair of brim side panels, the pair of brim side panels being fixedly connected to both sides of the brim respectively;

[0031] A front brim brim panel, which is fixed to the front end of the brim.

[0032] Preferably, a front corner plate is provided at the inner corner where the front plate and the bottom plate connect, the angle between the front corner plate and the bottom plate is 20 to 50°, the width of the middle part of the front corner plate is uniform, and the end of the front corner plate is smoothly curved and tapered towards the joint between the front plate and the bottom plate.

[0033] Preferably, a brim reinforcement plate is provided at the inner corner where the front panel and the brim connect. The brim reinforcement plate is spindle-shaped, with its middle part protruding away from the inner corner where the front panel and the brim connect to form an arc surface, and the end of the brim reinforcement plate smoothly curving and contracting towards the seam between the front panel and the brim.

[0034] This utility model also provides a mining dump truck, which is equipped with the above-mentioned U-shaped cargo box.

[0035] This utility model offers at least the following advantages: The transverse reinforcing ribs of the U-shaped cargo box's bottom plate employ a double-layer U-shaped structure design. The first plate is fully fitted to the outer contour of the bottom plate, which can evenly distribute the stress generated when the cargo box bears load, effectively improving the overall compressive strength of the bottom plate. The gradual spacing design between the first cover plate and the first plate reduces material usage while ensuring structural rigidity, thus lowering the cargo box's weight while maintaining necessary load-bearing capacity. The placement of the first reinforcing rib upright plate between the double-layer structure forms a rigid support, enhancing the transverse bending resistance of the bottom plate and enabling the cargo box to better resist external impacts during transportation. This three-dimensional reinforced structure not only improves the bottom plate's resistance to deformation but also optimizes the overall mechanical properties of the cargo box through a reasonable force transmission path, extending the cargo box's service life.

[0036] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0037] Figure 1 This is a structural schematic diagram of the U-shaped cargo box described in this utility model from one perspective;

[0038] Figure 2 This is a structural schematic diagram of the U-shaped cargo box described in this utility model from another perspective;

[0039] Figure 3 This is a schematic diagram of the structure of the base plate described in this utility model;

[0040] Figure 4 This is a schematic diagram of the structure of the transverse reinforcing ribs of the base plate described in this utility model;

[0041] Figure 5 This is a schematic diagram of the front panel of the present invention;

[0042] Figure 6 This is a schematic diagram of the brim of the hat as described in this utility model from one perspective;

[0043] Figure 7 This is a structural schematic diagram of the brim of the hat described in this utility model from another perspective;

[0044] Figure 8 This is a schematic diagram of the structure of the side plate described in this utility model;

[0045] Among them, 1-bottom plate, 2-side plate, 3-front plate, 4-brim, 5-bottom plate transverse reinforcing rib, 6-first mounting plate, 7-first cover plate, 8-first reinforcing rib upright plate, 9-bottom plate longitudinal reinforcing rib, 10-flipping hinge seat, 11-sealing plate, 12-rear transverse rib, 13-rear transverse rib upright plate, 14-side plate upper reinforcing rib, 15-side plate edge beam, 16-front plate transverse reinforcing rib, 17-side plate middle reinforcing plate, 18-brim transverse reinforcing rib, 19-brim side baffle, 20-brim front baffle, 21-front corner plate, 22-brim reinforcing plate. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0047] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] like Figures 1-8 As shown, this utility model provides a U-shaped cargo box, including a bottom plate 1, side plates 2, front plate 3, and a visor 4 constituting the main body of the cargo box. The bottom plate 1 is U-shaped, and the outer wall of the bottom plate 1 is provided with transverse reinforcing ribs 5 along the transverse direction of the U-shaped cargo box. The transverse reinforcing ribs 5 include:

[0049] The first plate 6 is U-shaped and matches the outer contour of the cross-section of the base plate 1. The first plate 6 is fixed to the outer wall of the base plate 1.

[0050] The first cover plate 7 is also U-shaped and located below the first patch plate 6. The middle part of the first cover plate 7 maintains a distance from the first patch plate 6. The distance between the first cover plate 7 and the first patch plate 6 gradually decreases from the arc transition point to the end until the end of the first cover plate 7 is fixedly connected to the end of the first patch plate 6.

[0051] The first reinforcing rib plate 8 is disposed between the first mounting plate 6 and the first cover plate 7.

[0052] The bottom plate of the cargo box adopts a double-layer U-shaped structure design for the transverse reinforcing ribs 5. The first plate 6 is completely fitted with the outer contour of the bottom plate 1, which can evenly distribute the stress generated when the cargo box is under load and effectively improve the overall compressive strength of the bottom plate 1. The first cover plate 7 and the first plate 6 are designed with a gradual spacing, which reduces the amount of material used while ensuring structural rigidity, thereby reducing the weight of the cargo box and maintaining the necessary load-bearing capacity.

[0053] The first reinforcing rib plate 8 forms a rigid support between the double-layer structure, enhancing the lateral bending resistance of the base plate 1 and enabling the cargo box to better resist external impacts during transportation. This three-dimensional reinforcing structure not only improves the deformation resistance of the base plate 1 but also optimizes the overall mechanical properties of the cargo box through a reasonable force transmission path, extending the service life of the cargo box.

[0054] The gradient fit design creates a locally thickened structure for the reinforcing ribs in the arc transition area, effectively alleviating stress concentration and reducing the risk of cracking in this area due to long-term stress. Simultaneously, the double-layer structure enhances the connection strength between the bottom plate 1 and the side plates 2, improving the overall stability of the cargo box structure.

[0055] Furthermore, the U-shaped cargo box also includes:

[0056] A pair of longitudinal reinforcing ribs 9 on the bottom plate are arranged on the outer wall of the bottom plate 1 along the longitudinal direction of the U-shaped cargo box. The pair of longitudinal reinforcing ribs 9 are symmetrical along the longitudinal center line of the U-shaped cargo box. The longitudinal reinforcing ribs 9 on the bottom plate are provided with transverse through holes for the transverse reinforcing ribs 5 to pass through.

[0057] A pair of flip hinge seats 10 are disposed on the outer wall of the base plate 1 and are respectively located behind a pair of longitudinal reinforcing ribs 9 of the base plate;

[0058] The longitudinal reinforcing rib 9 of the base plate has a groove-shaped cross-section with its opening facing the outer wall of the base plate 1, and the front end of the longitudinal reinforcing rib 9 of the base plate is provided with a sealing plate 11. The flip hinge seat 10 closes the rear end of the longitudinal reinforcing rib 9 of the base plate, so that the longitudinal reinforcing rib 9 of the base plate forms a closed box-shaped structure.

[0059] The longitudinal reinforcing ribs 9 of the bottom plate adopt a closed box-shaped structure design, forming a stable mechanical support system through the cooperation of the front sealing plate 11 and the rear flip hinge seat 10. This structure can effectively resist the longitudinal bending moment generated during the transportation of the cargo box, improve the bending resistance of the bottom plate 1 along the length direction, and reduce the downward deflection deformation in the middle caused by the weight of the cargo. The closed space formed inside the box-shaped structure can also be used as a weight-reduction cavity, reducing the overall weight while ensuring structural strength.

[0060] The transverse through-holes enable the cross-connection of longitudinal and transverse reinforcing ribs. The two reinforcing structures form rigid nodes through the through-holes, making the stress distribution of the base plate 1 more uniform in the two-dimensional plane. This connection method enhances the overall rigidity of the base plate 1, avoids local stress concentration, and effectively disperses the load, especially when the weight distribution of the cargo is uneven, thereby improving the load-bearing stability of the cargo box.

[0061] The integrated design of the tilting hinge 10 and the longitudinal reinforcing rib optimizes the installation position of the cargo box's tilting mechanism. The hinge directly relies on the closed structure of the reinforcing rib as its support base, transmitting the torque generated during tilting to the entire bottom plate 1 frame, reducing the load on local stress points. At the same time, the closed structure provides a reliable fixed base for the hinge, improving the installation accuracy and operational reliability of the tilting mechanism.

[0062] The slotted opening design of the longitudinal reinforcing rib 9 on the base plate facilitates mold forming during manufacturing. Combined with the standardized sealing plate 11 and hinge structure, it reduces the processing complexity of the parts. This modular design also makes it easier to connect the reinforcing rib to other structures, and it can be disassembled and replaced individually during cargo box maintenance or modification, improving the maintainability and service life of the product.

[0063] Furthermore, the tail of the bottom plate 1 is upturned, and a rear transverse rib 12 is provided on the outer wall of the tail of the bottom plate 1 along the transverse direction of the U-shaped cargo box. The rear transverse rib 12 is U-shaped and matches the outer contour of the cross section of the tail of the bottom plate 1. The cross section of the rear transverse rib 12 is a groove with the opening facing the outer wall of the bottom plate 1. A rear transverse rib upright plate 13 is provided inside the rear transverse rib 12.

[0064] The upward-curving design of the rear of the bottom plate effectively reduces the risk of the cargo box hitting the ground due to road bumps during transportation, while also facilitating the natural sliding of goods during unloading. This structural optimization creates a certain tilt angle at the rear of the cargo box, which reduces resistance during transportation and improves the convenience of loading and unloading goods.

[0065] The rear transverse rib 12 adopts a U-shaped structure that matches the outer contour of the rear of the bottom plate 1, which can evenly distribute the load borne by the rear and enhance the compressive strength of this area. The groove design with the opening facing the outer wall of the bottom plate 1 ensures structural rigidity while providing convenient interface conditions for subsequent installation of accessories or modification, thus improving the flexibility of the cargo box.

[0066] The vertical plates inside the rear transverse rib 12 divide the channel structure into multiple independent chambers, forming a locally reinforced rigid support system. This structure can effectively resist the lateral bending moment at the rear, reduce deformation caused by cargo weight or external impact, and improve the structural stability of the cargo box rear.

[0067] The U-shaped rear transverse rib 12, closely fitted to the outer wall of the bottom plate 1, enhances the connection strength between the rear and the side plate 2, resulting in more even stress distribution across the overall cargo box frame. This structural design improves the fatigue resistance of the rear area and extends the overall service life of the cargo box without significantly increasing weight.

[0068] Furthermore, the U-shaped cargo box also includes:

[0069] The side plate has a reinforcing rib 14, which is arranged along the longitudinal direction of the U-shaped cargo box on the upper part of the outer wall of the side plate 2;

[0070] Side panel edge beam 15 is arranged at the top of the side panel 2 along the longitudinal direction of the U-shaped cargo box, and connects the side panel 2 to the side panel reinforcing rib 14;

[0071] The rear transverse rib 12 extends to the outer wall of the side plate 2 and is fixedly connected to the outer wall of the side plate 2. The rear transverse rib 12 is also fixedly connected to the reinforcing rib 14 on the side plate to form the outer frame of the cargo box.

[0072] The reinforcing ribs 14 on the side plate are arranged longitudinally along the upper part of the side plate 2, which can effectively enhance the ability of the side plate 2 to resist longitudinal bending moment and reduce the deformation of the plate surface caused by the lateral pressure of the cargo. This layout not only improves the bending stiffness of the side plate 2, but also provides a reliable supporting foundation for the connection between the side plate 2 and other structures, ensuring a smooth force transmission path between components.

[0073] The side panel edging beam 15 connects the top of the side panel 2 to the upper reinforcing rib to form a rigid frame structure. This structure enhances the torsional resistance of the cargo box top, reduces top deformation caused by road bumps during transportation, and provides a flat installation base for adding a lid or installing other accessories, thus improving the ease of use of the cargo box.

[0074] The rigid connection between the rear transverse rib 12 and the side plate 2 creates a rigid connection node between the tail of the bottom plate 1 and the side plate 2, transferring the load borne by the bottom plate 1 to the side plate 2 structure. This connection method enhances the stability of the overall cargo box frame, especially when the center of gravity of the cargo shifts rearward, effectively dispersing the concentrated load at the tail and reducing the risk of local structural overload.

[0075] The connection between the rear transverse rib 12 and the reinforcing rib 14 on the side plate forms a closed outer frame skeleton, integrating the bottom plate 1, side plate 2, and top structure into one unit. This spatial frame structure significantly improves the overall rigidity of the cargo box, enabling it to maintain a stable geometric shape under complex stress conditions and reducing cargo damage or equipment failure caused by structural deformation.

[0076] The closed design of the outer frame optimizes the force transmission path of the cargo box, distributing external loads evenly throughout the entire frame structure. This layout improves the cargo box's ability to withstand various complex stresses without significantly increasing material usage, making it particularly suitable for long-term use in heavy-duty transportation or harsh working conditions.

[0077] Furthermore, the front panel 3 is U-shaped, and a transverse reinforcing rib of the front panel 16 is provided in the middle of the outer wall of the front panel 3 along the transverse direction of the U-shaped cargo box.

[0078] The transverse reinforcing ribs of the front panel 16 are located in the transverse position in the middle of the front panel 3, which can effectively enhance the front panel 3's ability to resist the impact of cargo and reduce the indentation deformation of the panel surface caused by cargo inertia. This layout divides the front panel 3 into upper and lower stress areas, making the load distribution more even, and can significantly improve the deformation resistance of the front panel 3, especially when the cargo loading height is high.

[0079] The structural design of the 16 transverse reinforcing ribs of the front panel matches the U-shaped outer contour of the front panel 3, forming a rigid support system that fits snugly against the panel surface. This construction improves the bending stiffness of the front panel 3 without significantly increasing weight, allowing the cargo box to maintain a stable geometry when subjected to frontal collisions or compression, protecting the integrity of the internal cargo and the cargo box structure.

[0080] The lateral reinforcing ribs of the front panel 16 provide an additional mounting base for accessories, such as anti-collision devices or cargo restraint structures. This design expands the functionality of the cargo box without compromising the main structure of the front panel 3, meeting the diverse needs of different transportation scenarios while maintaining the original structural strength and reliability of the cargo box.

[0081] Furthermore, the U-shaped cargo box also includes:

[0082] The side panel has a reinforcing plate 17, which is arranged in the middle of the outer wall of the side panel 2 along the longitudinal direction of the U-shaped cargo box. The side panel has a reinforcing plate 17 at the same height as the transverse reinforcing rib of the front panel 16, and the front end of the side panel has a reinforcing plate 17 fixed to the transverse reinforcing rib of the front panel 16 to form the middle skeleton of the cargo box.

[0083] The reinforcing plate 17 is longitudinally positioned in the middle of the side panel 2, at the same height as the transverse reinforcing ribs of the front panel 16, forming a continuous rigid support structure. This layout effectively disperses the lateral pressure of the cargo on the middle of the side panel 2, reduces bulging deformation of the panel surface caused by the shift of the cargo's center of gravity, and improves the bending resistance of the side panel 2. The close fit design between the reinforcing plate and the side panel 2 ensures structural strength while providing a reliable installation base for cargo securing devices.

[0084] The front end is fixedly connected to the transverse reinforcing ribs of the front panel 16 to form the central frame of the cargo box, connecting the side panel 2 and the front panel 3 into one unit. This connection method optimizes the force transmission path in the middle of the cargo box, allowing the longitudinal load generated by the cargo to be transferred to the front panel 3 structure through the reinforcing plate, reducing stress concentration at the connection between the side panel 2 and the front panel 3, and improving the overall stability of the cargo box frame.

[0085] The connection between the reinforcing plate 17 in the side panel and the transverse reinforcing rib of the front panel 16 forms a closed stress loop in the middle of the cargo box, enhancing the area's resistance to torsional and shear deformation. This structure is particularly suitable for heavy-duty transportation scenarios, effectively preventing the collapse or twisting of the middle of the cargo box due to uneven cargo distribution, and extending the service life of the cargo box.

[0086] Furthermore, the connection between the reinforcing plate 17 and the transverse reinforcing rib of the front plate 16 in the side plate is staggered from the connection between the front plate 3 and the side plate 2.

[0087] Specifically, the front end of the reinforcing plate 17 in the side plate extends beyond the front end of the side plate 2, so that the connection between the reinforcing plate 17 and the transverse reinforcing rib of the front plate 16 is located on the outer wall of the front plate 3. For example, the front end of the reinforcing plate 17 in the side plate may extend approximately 50 mm beyond the front end of the side plate 2.

[0088] The connection points between the reinforcing plate 17 in the side panel and the transverse reinforcing ribs of the front panel 16 are staggered from the connection points between the front panel 3 and the side panel 2. This layout avoids excessive concentration of welds or fasteners in the same area, reducing the risk of localized stress superposition. When the cargo box is subjected to complex loads, the connection points at different locations can bear forces in different directions, making the stress distribution of the overall structure more uniform and reducing the possibility of structural failure due to stress concentration.

[0089] The staggered connection design optimizes the force transmission path in the middle of the cargo box. When the lateral pressure or longitudinal impact force generated by the cargo acts on the side panel 2, the load is transferred to the transverse stiffeners of the front panel 16 through the central reinforcing plate, and then distributed to other parts of the cargo box frame through the connection point between the front panel 3 and the side panel 2. This phased force transmission method avoids excessive load concentration at a single node and improves the overall load-bearing stability of the cargo box.

[0090] The staggered layout at the joints enhances the structural rigidity of the cargo box's center. By placing the two joints at different locations, a mutually supporting mechanical system is formed, enabling the cargo box to share the deformation through multiple support points when subjected to torsional or bending loads, thus reducing structural twisting or denting caused by insufficient local rigidity.

[0091] Furthermore, the transverse reinforcing ribs of the front plate 16 include:

[0092] The second plate is U-shaped and matches the outer contour of the cross-section of the front plate 3. The second plate is fixed to the outer wall of the front plate 3.

[0093] The second cover plate is also U-shaped and located in front of the second patch plate. The middle part of the second cover plate maintains a distance from the second patch plate. The distance between the second cover plate and the second patch plate gradually decreases from the arc transition point to the end until the end of the second cover plate is fixedly connected to the end of the second patch plate.

[0094] The second reinforcing rib upright plate is disposed between the second side plate and the second cover plate.

[0095] The front panel 16 transverse reinforcing ribs adopt a double-layer U-shaped structure design. The second panel is completely fitted with the outer contour of the front panel 3, which can evenly distribute the stress generated by the impact of the cargo and improve the overall compressive strength of the front panel 3. The gradual spacing design between the second cover plate and the second panel reduces the amount of material used while ensuring structural rigidity, thus reducing the self-weight of the front panel 3 while maintaining the necessary load-bearing capacity.

[0096] The second reinforcing rib forms a rigid support between the two layers, enhancing the lateral bending resistance of the front panel 3 and enabling the cargo box to better resist deformation under frontal impact. This three-dimensional reinforcement structure optimizes the mechanical properties of the front panel 3 and extends the service life of the cargo box.

[0097] The gradient fit design creates a locally thickened structure for the reinforcing ribs in the arc transition area, effectively alleviating stress concentration and reducing the risk of cracking in this area due to long-term stress. Simultaneously, the double-layer structure enhances the connection strength between the front panel 3 and the side panel 2, improving the overall stability of the cargo box structure.

[0098] Furthermore, the brim 4 is an upwardly protruding arc-shaped plate;

[0099] The U-shaped cargo box also includes:

[0100] A transverse reinforcing rib 18 is fixedly connected to the lower surface of the brim 4 along the transverse direction of the U-shaped cargo box;

[0101] A pair of brim side panels 19, the pair of brim side panels 19 being fixedly connected to both sides of the brim 4 respectively;

[0102] The front brim brim 20 is fixedly attached to the front end of the brim 4.

[0103] The brim 4 features an upward-convex arc-shaped plate design, which effectively enhances its bending stiffness and reduces downward deformation caused by cargo weight or external pressure. This curved shape not only improves structural strength but also guides rainwater or debris to slide off along the arc surface, preventing water accumulation from corroding the top of the cargo box or causing concentrated loads.

[0104] The transverse reinforcing ribs 18 of the brim are fixed to the lower surface of the cargo box in the transverse direction, forming a support structure that matches the curved brim 4. This layout can evenly distribute the transverse load borne by the brim 4, reduce local stress concentration, and significantly improve the load-bearing capacity of the brim 4, especially when the cargo is stacked at a high height, thus maintaining the flatness of the top of the cargo box.

[0105] A pair of side panels 19 are fixed to both sides of the brim 4 to form a closed lateral protection structure. This design can prevent goods from slipping to the sides during transportation, while also enhancing the connection strength between the brim 4 and the side panels 2, transferring the top load to the cargo box frame through the side panels, and improving the overall structural stability.

[0106] The front brim baffle 20 is fixed to the front end, forming a closed protective system together with the side baffles. This structure can effectively prevent the cargo from sliding forward, reduce the impact of cargo caused by emergency braking, and provide additional anti-collision protection for the front of the cargo box, reducing the degree of damage to the cargo box and cargo in a collision.

[0107] The overall structural design of the brim 4 improves the overall performance of the cargo box top while ensuring lightweight design through the synergistic effect of the curved plate, reinforcing ribs, and baffles.

[0108] Furthermore, a front corner plate 21 is provided at the inner corner where the front plate 3 and the bottom plate 1 connect. The angle between the front corner plate 21 and the bottom plate 1 is 20 to 50°. The width of the middle part of the front corner plate 21 is uniform, and the end of the front corner plate 21 is smoothly curved and contracted towards the joint between the front plate 3 and the bottom plate 1.

[0109] The front corner plate 21 is located at the inner corner where the front plate 3 and the bottom plate 1 connect. Its 20-50° angle design can effectively disperse the stress concentration phenomenon generated by the cargo box during transportation. This angle selection not only ensures the structural strength at the connection between the front plate 3 and the bottom plate 1, but also avoids local stress overload caused by right angle transition, thus improving the fatigue resistance of the overall frame of the cargo box.

[0110] The uniform width of the central section allows the front corner plate 21 to evenly distribute the load between the front plate 3 and the bottom plate 1, reducing deformation caused by cargo weight or external impact. This design is particularly suitable for heavy-duty transportation scenarios, effectively preventing cracks or dents at the joints due to uneven stress, and extending the service life of the cargo box.

[0111] The design of smooth, tapering curves towards the seam at the ends optimizes material distribution, reducing material usage while maintaining necessary strength. This gradient structure not only reduces the cargo box's weight but also improves the reliability of the connection area by eliminating stress concentration points, preventing structural failure caused by long-term repeated stress.

[0112] Furthermore, a brim reinforcement plate 22 is provided at the inner corner where the front plate 3 and the brim 4 are connected. The brim reinforcement plate 22 is spindle-shaped, and the middle part of the brim reinforcement plate 22 protrudes away from the inner corner where the front plate 3 and the brim 4 are connected to form an arc surface. The end of the brim reinforcement plate 22 is smoothly bent and contracted towards the joint of the front plate 3 and the brim 4.

[0113] The brim reinforcement plate 22 is located at the inner corner where the front plate 3 and the brim 4 connect. Its spindle-shaped design effectively distributes the load on the top of the cargo box, reducing stress concentration caused by cargo weight or external impact. The arc-shaped structure protruding from the center away from the seam enhances the bending stiffness of the reinforcement plate and improves the deformation resistance at the connection between the brim 4 and the front plate 3, making it particularly suitable for heavy-duty transportation scenarios.

[0114] The smooth, tapering design at the ends towards the seam optimizes material distribution, reducing material usage while maintaining necessary strength. This gradual transition structure eliminates stress concentration points caused by right-angle connections, reducing the risk of cracking in this area due to long-term repeated stress and extending the service life of the cargo box.

[0115] This utility model also provides a mining dump truck, which is equipped with the aforementioned U-shaped cargo box. Therefore, the mining dump truck has the same advantages as the U-shaped cargo box described in the above embodiments.

[0116] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A U-shaped cargo box, comprising a bottom plate, side plates, a front plate, and a visor constituting the main body of the cargo box, characterized in that, The bottom plate is U-shaped, and the outer wall of the bottom plate is provided with transverse reinforcing ribs along the transverse direction of the U-shaped cargo box. The transverse reinforcing ribs include: The first plate is U-shaped and matches the outer contour of the cross-section of the base plate. The first plate is fixed to the outer wall of the base plate. The first cover plate is also U-shaped and located below the first patch plate. The middle part of the first cover plate is spaced apart from the first patch plate. The distance between the first cover plate and the first patch plate gradually decreases from the arc transition point to the end, until the end of the first cover plate is fixedly connected to the end of the first patch plate. The first reinforcing rib upright plate is disposed between the first mounting plate and the first cover plate.

2. The U-shaped cargo box as described in claim 1, characterized in that, Also includes: A pair of longitudinal reinforcing ribs on the bottom plate, the pair of longitudinal reinforcing ribs on the bottom plate are arranged along the longitudinal direction of the U-shaped cargo box on the outer wall of the bottom plate, the pair of longitudinal reinforcing ribs on the bottom plate are symmetrical along the longitudinal center line of the U-shaped cargo box, and the longitudinal reinforcing ribs on the bottom plate are provided with transverse through holes for the transverse reinforcing ribs on the bottom plate to pass through. A pair of flip hinge seats, wherein the pair of flip hinge seats are disposed on the outer wall of the base plate and are respectively located behind the pair of longitudinal reinforcing ribs of the base plate; The longitudinal reinforcing rib of the base plate has a groove-shaped cross-section with its opening facing the outer wall of the base plate, and the front end of the longitudinal reinforcing rib of the base plate is provided with a sealing plate. The flip hinge seat closes the rear end of the longitudinal reinforcing rib of the base plate, so that the longitudinal reinforcing rib of the base plate forms a closed box-shaped structure.

3. The U-shaped cargo box as described in claim 1, characterized in that, The tail of the bottom plate is upturned, and a rear transverse rib is provided on the outer wall of the tail of the bottom plate along the transverse direction of the U-shaped cargo box. The rear transverse rib is U-shaped and matches the outer contour of the cross section of the tail of the bottom plate. The cross section of the rear transverse rib is a groove with the opening facing the outer wall of the bottom plate. A rear transverse rib upright plate is provided inside the rear transverse rib.

4. The U-shaped cargo box as described in claim 3, characterized in that, Also includes: The side plate has reinforcing ribs, which are arranged along the longitudinal direction of the U-shaped cargo box on the upper part of the outer wall of the side plate; Side panel edge beams are provided at the top of the side panel along the longitudinal direction of the U-shaped cargo box, and connect the side panel to the reinforcing ribs on the side panel; The rear transverse rib extends to the outer wall of the side panel and is fixedly connected to the outer wall of the side panel. The rear transverse rib is also fixedly connected to the reinforcing rib on the side panel to form the outer frame skeleton of the cargo box.

5. The U-shaped cargo box as described in claim 1, characterized in that, The front panel is U-shaped, and a transverse reinforcing rib is provided in the middle of the outer wall of the front panel along the transverse direction of the U-shaped cargo box.

6. The U-shaped cargo box as described in claim 5, characterized in that, Also includes: A reinforcing plate is provided in the middle of the outer wall of the side panel along the longitudinal direction of the U-shaped cargo box. The reinforcing plate in the side panel is at the same height as the transverse reinforcing rib of the front panel, and the front end of the reinforcing plate in the side panel is fixedly connected to the transverse reinforcing rib of the front panel to form the middle skeleton of the cargo box.

7. The U-shaped cargo box as described in claim 6, characterized in that, The connection between the reinforcing plate in the side plate and the transverse reinforcing rib of the front plate is staggered from the connection between the front plate and the side plate.

8. The U-shaped cargo box as described in claim 7, characterized in that, The front end of the reinforcing plate in the side plate extends beyond the front end of the side plate, so that the connection between the reinforcing plate in the side plate and the transverse reinforcing rib of the front plate is located on the outer wall of the front plate.

9. The U-shaped cargo box as described in claim 5, characterized in that, The transverse stiffeners of the front plate include: The second panel is U-shaped and matches the outer contour of the cross-section of the front panel. The second panel is fixed to the outer wall of the front panel. The second cover plate is also U-shaped and located in front of the second patch plate. The middle part of the second cover plate maintains a distance from the second patch plate. The distance between the second cover plate and the second patch plate gradually decreases from the arc transition point to the end until the end of the second cover plate is fixedly connected to the end of the second patch plate. The second reinforcing rib upright plate is disposed between the second side plate and the second cover plate.

10. The U-shaped cargo box as described in claim 1, characterized in that, The brim is an upwardly protruding arc-shaped plate; The U-shaped cargo box also includes: A transverse reinforcing rib for the brim is fixedly connected to the lower surface of the brim along the transverse direction of the U-shaped cargo box; A pair of brim side panels, the pair of brim side panels being fixedly connected to both sides of the brim respectively; A front brim brim panel, which is fixed to the front end of the brim.

11. The U-shaped cargo box as described in claim 1, characterized in that, A front corner plate is provided at the inner corner where the front plate and the bottom plate connect. The angle between the front corner plate and the bottom plate is 20-50°. The width of the front corner plate is uniform in the middle. The end of the front corner plate is smoothly curved and tapered towards the joint between the front plate and the bottom plate.

12. The U-shaped cargo box as described in claim 1, characterized in that, A brim reinforcement plate is provided at the inner corner where the front panel and the brim connect. The brim reinforcement plate is spindle-shaped, and the middle part of the brim reinforcement plate protrudes away from the inner corner where the front panel and the brim connect to form an arc surface. The end of the brim reinforcement plate smoothly bends and shrinks towards the joint between the front panel and the brim.

13. A mining dump truck, characterized in that, The mining dump truck is equipped with a U-shaped cargo box as described in any one of claims 1 to 12.

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