Off-highway dump truck cargo box and off-highway dump truck

Abstract

This utility model discloses a cargo box for an off-highway dump truck and an off-highway dump truck. The cargo box includes a box body and a cargo box visor. The cargo box visor includes a visor main plate and a pair of side baffles. The visor main plate includes a vertical plate and a top plate. The vertical plate is fixedly connected to the top plate and the vertical plate is fixedly connected to the top of the front panel of the cargo box. The side baffles include an inner baffle, an outer baffle, a top plate, and a bottom plate that surround and form the box structure. The inner baffle is close to the interior of the cargo box body, and the bottom plate is located between the inner baffle and the outer baffle. Multiple reinforcing plates are spaced apart along the length of the cargo box body inside the side baffles. The beneficial effects of this utility model are that by raising the visor, it provides a larger operating space for battery swapping, and by strengthening the cargo box visor structure, the raised visor structure has high strength and high safety and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of dump truck cargo box structure. More specifically, this utility model relates to an off-highway dump truck cargo box and an off-highway dump truck. Background Technology

[0002] Off-highway dump trucks often travel on winding, potholed roads, making road conditions worse than on-highway dump trucks. 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; therefore, the cargo box structure is particularly important. With the trend towards "green and intelligent" off-highway dump trucks, the cargo box structure also needs to match the overall vehicle function and structure, such as supporting battery swapping and charging. Furthermore, the cargo box structure needs to be adjusted according to the different goods being loaded.

[0003] In existing technologies, common battery-swapping methods for off-highway dump trucks involve lifting the cargo box before swapping the battery. However, the lifted cargo box is unstable, posing a significant safety hazard. A sudden drop could easily cause a serious accident. Alternatively, the cargo box may lack a protective visor. While this allows swapping without lifting the cargo box, the battery itself lacks adequate protection. Some engineers have raised the cargo box visor to facilitate battery swapping, but these visors currently lack reinforcement. In such cases, material compression can deform or even damage the front panel and visor, compromising the cab's protection and endangering the driver. Welding diagonal braces between the visor and the cargo box front panel also restricts the robotic arm's operating space during battery swapping. Therefore, the current raised visor lacks additional reinforcement, resulting in low overall structural strength and posing significant safety risks during long-term transportation and operation. 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] Another objective of this invention is to provide a cargo box for off-highway dump trucks that allows for a larger operating space for battery swapping without lifting the cargo box, thus eliminating the safety hazards associated with battery swapping after lifting the cargo box. At the same time, by strengthening the cargo box's visor structure, the heightened visor structure has greater strength and higher safety and reliability, while also preventing material spillage during loading or transportation, thus protecting the battery.

[0006] To achieve these objectives and other advantages of this utility model, a cargo box for an off-highway dump truck is provided, comprising a cargo box body and a cargo box visor disposed on the top of the front panel of the cargo box, the cargo box visor comprising a visor main plate and a pair of side baffles: The main body of the brim includes a vertical plate and a top plate. The vertical plate is fixedly connected to the top plate and the vertical plate is fixedly connected to the top of the front panel of the cargo box. The side baffle includes an inner baffle, an outer baffle, a top plate, and a bottom plate that surround and form a box structure. The inner baffle is close to the interior of the cargo box body, and the bottom plate is located between the inner baffle and the outer baffle. Multiple reinforcing plates are spaced apart along the length of the cargo box body inside the side baffle. The top of the reinforcing plate is connected to the top plate, and the bottom of the reinforcing plate is connected to the bottom plate. A pair of side baffles are located at both ends of the main baffle plate along the width of the cargo box and are adapted to the main baffle plate.

[0007] Preferably, the vertical plate of the main brim is provided with longitudinal reinforcing ribs in the vertical direction, and the top plate of the main brim is provided with rear top reinforcing ribs in the length direction of the cargo box body. Diagonal bracing reinforcing ribs are welded between the rear top reinforcing ribs and the longitudinal reinforcing ribs.

[0008] Preferably, it also includes a pair of brim guide plates, the brim guide plates are triangular boxes, the brim guide plates are arranged along the length direction of the cargo box body, the pair of brim guide plates correspond one-to-one with the pair of side baffles, one right-angle side of the brim guide plate is connected to the corresponding outer baffle, so that the inclined side of the brim guide plate faces the side away from the interior of the cargo box body to guide the material.

[0009] Preferably, the cargo box brim further includes a front baffle and a front top reinforcing rib. The front baffle is disposed at the end of the top plate away from the cargo box body and is fixedly connected to the top plate. The front top reinforcing rib is disposed between the top plate and the front baffle.

[0010] Preferably, the cargo box body includes a cargo box bottom plate, a cargo box front plate, and cargo box side plates; the cargo box bottom plate is provided with main longitudinal beams and transverse beams in both directions, and a rear transverse beam is provided at the rear end of the cargo box bottom plate; the main longitudinal beams are arranged along the length direction of the cargo box bottom plate, and the transverse beams are arranged along the width direction of the cargo box bottom plate.

[0011] Preferably, a pair of flip seats are provided at the rear end of the bottom of the cargo box floor, and the pair of flip seats are spaced apart along the width direction of the cargo box floor. The flipping seat includes a pair of flipping beams spaced apart along the width direction of the cargo box bottom plate. A reinforcing limiting plate is connected between the rear ends of the pair of flipping beams. The reinforcing limiting plate is used to restrict the cargo box from continuing to flip when the cargo box is flipped to a set position.

[0012] Preferably, the flipping seat further includes a safety support seat, which is located on the rear end side of the reinforcing limiting plate. One end of the safety support seat is connected to the flipping seat, and the other end is connected to the main longitudinal beam. The safety support seat is provided with a pin hole.

[0013] Preferably, a pair of lifting seats are provided at the front end of the bottom of the cargo box floor, and the pair of lifting seats are spaced apart along the width direction of the cargo box floor. The lifting seats include a reinforcing bottom plate, a pair of vertical plates, a pair of reinforcing curved plates, two pairs of threaded blocks, and a pair of lifting shaft fixing plates provided on the cargo box floor. The pair of vertical plates are spaced apart along the width of the cargo box bottom plate. The pair of reinforcing curved plates are arranged back-to-back and on both sides of the pair of vertical plates along the length of the cargo box bottom plate. The bottom end of the reinforcing curved plate is connected to the reinforcing bottom plate, and the top end is curved upward and connected to the crossbeam. The ends of the pair of vertical plates are connected to the reinforcing curved plates. The vertical plates are provided with pin holes for installing lifting cylinders. Spacer rings are provided in the pin holes. The two pairs of threaded blocks are respectively arranged on both sides of the pair of vertical plates along the width of the cargo box bottom plate. Two threaded blocks in each pair are spaced apart along the length of the cargo box bottom plate on the vertical plates. The pair of lifting shaft fixing plates are respectively arranged on the outside of the two pairs of threaded blocks. The lifting shaft fixing plates are movably attached to the corresponding pair of threaded blocks. The vertical plates, the lifting shaft fixing plates, and the corresponding pair of threaded blocks form an insertion space for the lifting pin cover plate. The threaded block has a first threaded hole, and the lifting shaft fixing plate has a second threaded hole corresponding to the first threaded hole. The pair of threaded blocks and the corresponding lifting shaft fixing plate are fixedly connected by bolts screwed into the first threaded hole and the second threaded hole.

[0014] Preferably, the cargo box side panel includes a side panel, an upper horizontal rib on the upper part of the outer wall of the side panel, a lower horizontal rib on the lower part of the outer wall of the side panel, a front vertical rib on the front end of the side panel, a rear vertical rib on the rear end of the side panel, an upper horizontal rib edge beam on the side panel top notch away from the cab, and a rear horizontal rib on the lower part of the rear end of the side panel.

[0015] Off-highway dump trucks, including the off-highway dump truck cargo box.

[0016] This utility model has at least the following beneficial effects: By setting up a cargo box body, a vertical plate, a top plate, a pair of side baffles, and a reinforcing plate, a cargo box structure with a raised brim is provided, and the overall structure of the raised brim has high strength. The raised brim can provide a larger space for battery swapping operations, and the side baffle structure and reinforcing plate structure further improve the structural strength of the brim. Overall, the convenience of battery swapping operations is improved while ensuring the overall structural strength of the cargo box.

[0017] 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

[0018] Figure 1 This is a schematic diagram of the structure of the off-highway dump truck cargo box according to one of the technical solutions of this utility model; Figure 2 This is a schematic diagram of the structure of the cargo box bottom plate according to one of the technical solutions of this utility model; Figure 3 This is a schematic diagram of the structure of the flip-up seat according to one of the technical solutions of this utility model; Figure 4 This is a schematic diagram of the lifting seat according to one of the technical solutions of this utility model; Figure 5 This is a schematic diagram of the lifting pin shaft according to one of the technical solutions of this utility model; Figure 6 This is a schematic diagram showing the cargo box lifting pin shaft after installation according to one of the technical solutions of this utility model; Figure 7 This is a schematic diagram of the structure of the cargo box brim according to one of the technical solutions of this utility model; Figure 8 This is a schematic diagram of the structure of the left side baffle of the cargo box according to one of the technical solutions of this utility model; Figure 9 This is a schematic diagram of the structure of the left side panel of the cargo box according to one of the technical solutions of this utility model; Figure 10 This is one of the technical solutions of this utility model, which describes the connection structure between the safety support seat and the vehicle frame.

[0019] Attached reference numerals: 1-Cargo box cap; 2-Cargo box front panel; 3-Cargo box bottom plate; 4-Cargo box left side panel; 5-Cargo box corner panel; 6-Cargo box right side panel; 7-Cargo box lifting seat; 8-Main longitudinal beam; 10-Crossbeam; 13-Bottom plate; 14-Cargo box tipping seat; 15-Rear reinforcing rib; 16-Rear crossbeam; 18-Tilting beam; 20-Safety support seat; 21-Reinforced limiting plate; 23-Reinforced bending plate; 24-Reinforced bottom plate; 25-Threaded block; 26-Lifting shaft fixing plate; 27-Vertical plate; 28-Spacer ring; 29-Reinforcing plate; 30-Pin shaft body; 31-Cover plate; 32 - Front baffle; 33- Right side baffle; 34- Front top reinforcing rib; 35- Rear top reinforcing rib; 36- Longitudinal reinforcing rib; 37- Diagonal bracing reinforcing rib; 38- Retaining plate; 39- Vertical plate; 40- Embankment guide plate; 41- Left side baffle; 42- Inner baffle; 43- Reinforcing plate one; 44- Bottom plate; 45- Outer baffle; 46- Reinforcing plate two; 47- Top plate; 48- Front vertical rib; 49- Upper horizontal rib; 50- Notch; 51- Lower horizontal rib; 52- Side plate; 53- Round pipe; 54- Upper horizontal rib edge beam; 55- Rear horizontal rib; 56- Rear vertical rib; 57- Rear reinforcing plate. Detailed Implementation

[0020] 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.

[0021] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0022] like Figure 1-10 As shown, this utility model provides a cargo box for an off-highway dump truck, including a cargo box body and a cargo box brim 1 disposed at the top front end of the cargo box body. The cargo box brim 1 includes a brim main plate and a pair of side baffles. The main body of the cap brim includes a vertical plate 39 and a top plate. The vertical plate 39 is fixedly connected to the top plate and is connected to the top of the front panel 2 of the cargo box. The side baffle includes an inner baffle, an outer baffle, a top plate, and a bottom plate that surround and form a box structure. The inner baffle is close to the interior of the cargo box body. The bottom plate is located between the inner baffle and the outer baffle. Multiple reinforcing plates are spaced apart along the length of the cargo box body inside the side baffle. The top of the reinforcing plate is connected to the top plate, and the bottom of the reinforcing plate is connected to the bottom plate. A pair of side baffles are located at both ends of the main baffle plate along the width of the cargo box and are adapted to the main baffle plate. In the above technical solution, the off-highway dump truck cargo box includes a cargo box body and a cargo box visor 1 located at the top front end of the cargo box body. The cargo box visor 1 is composed of a visor main plate and a pair of L-shaped side baffles. The cargo box body is used for loading materials and is the main load-bearing part of the cargo box. The cargo box visor 1 is located at the top front end and serves a protective function. In actual use, the height of the cargo box visor 1 can be adaptively selected to facilitate battery swapping operations. The main body of the visor includes a vertical plate 39 and a top plate. The top plate is a retaining plate 38, which is horizontally positioned. One end of the retaining plate 38 is connected to the top of the vertical plate 39, and the other end is suspended on the outside of the cargo box body, close to the cab. A pair of side baffles are adapted to be installed at both ends of the main body of the visor along the width direction of the cargo box. The side baffles are L-shaped, with the horizontal portion of the side baffles facing upwards so that the side baffles match the L-shaped ends of the main body of the visor, thus fitting snugly at the L-shaped ends of the main body of the visor. The pair of side baffles are a left baffle 41 and a right baffle 33. The side baffle includes an inner baffle 42, an outer baffle 45, a top plate 47, and a bottom plate 44 that surround and form a box structure. Multiple reinforcing plates are spaced apart along the length of the cargo box inside the side baffle. These reinforcing plates are vertically arranged, with their tops connected to the top plate 47 and their bottoms connected to the bottom plate 44. The reinforcing plates can be made of Q345 steel to improve the structural strength of the side baffle. There can be multiple reinforcing plates; for example, reinforcing plate one 43 and reinforcing plate two 46 (e.g., ...) are spaced apart along the length of the cargo box inside the side baffle. Figure 8 As shown, Figure 8 The internal perspective view of the middle side baffle is shown to understand the placement of the reinforcing plate 43 and the reinforcing plate 46, thus minimizing costs while meeting structural strength requirements. During assembly, the bottom of the main baffle plate is fixed to the top of the front panel 2 of the cargo box by welding or other methods, and the side baffles are installed at both ends of the main baffle plate by welding or bolting.

[0023] During use, the height of the vertical plate 39 of the main body of the cargo box's visor is adaptively designed so that the structure formed by the main body of the visor and the side baffles of the cargo box visor 1 is an elevated visor. This facilitates the robotic arm's access under the visor 1 during battery swapping, providing more space for the operation and avoiding the safety hazards associated with lifting the cargo box. Simultaneously, the addition of reinforcing plates significantly improves the structural strength of the side baffles. The design of the side baffles enhances the structural strength of the visor 1, effectively preventing deformation under stress during long-term transportation and operation, thus ensuring the safety and reliability of the cargo box. Furthermore, the visor 1 also helps prevent materials from spilling from the front during transportation, protecting components such as batteries.

[0024] In another technical solution, the vertical plate 39 of the brim main board is provided with longitudinal reinforcing ribs 36 in the vertical direction, and the top plate of the brim main board is provided with rear top reinforcing ribs 35 arranged along the length of the cargo box body. Diagonal bracing ribs 37 are welded between the rear top reinforcing ribs 35 and the longitudinal reinforcing ribs 36.

[0025] In the above technical solution, the vertical plate 39 of the main brim is provided with a plurality of vertical longitudinal reinforcing ribs 36, which are spaced apart along the width direction of the cargo box body. The top plate, i.e. the retaining plate 38, is provided with a plurality of rear top reinforcing ribs 35, which are arranged along the length direction of the cargo box body. The plurality of rear top reinforcing ribs 35 are spaced apart along the width direction of the cargo box body. The rear top reinforcing ribs 35 correspond one-to-one with the longitudinal reinforcing ribs 36. Diagonal bracing reinforcing ribs 37 are welded between the rear top reinforcing ribs 35 and the corresponding longitudinal reinforcing ribs 36. The beneficial effect of adopting this technical solution is that by setting longitudinal reinforcing ribs 36, rear top reinforcing ribs 35, and diagonal bracing reinforcing ribs 37, the structural strength of the cargo box cap 1 is further enhanced.

[0026] In another technical solution, a pair of brim guide plates 40 are also included. The brim guide plates 40 are triangular boxes. The brim guide plates 40 are arranged along the length of the cargo box body. The pair of brim guide plates 40 correspond one-to-one with a pair of side baffles. One right-angle side of the brim guide plate 40 is connected to the corresponding outer baffle 45 so that the inclined side of the brim guide plate 40 faces the side away from the interior of the cargo box body to guide the material. In the above technical solution, specifically, the brim guide plate 40 is a pair, and the pair of brim guide plates 40 corresponds to a pair of outer baffles 45. The brim guide plate 40 is a right-angled triangular box. The side wall of one right-angled side of the brim guide plate 40 is connected to the corresponding outer baffle 45. When the brim guide plate is connected to the outer baffle 45, the hypotenuse of the brim guide plate 40 is located on the side of the outer baffle 45 away from the cargo box body. In this way, the side wall of the brim guide plate can guide the material. The beneficial effect of adopting this technical solution is that by setting the brim guide plate 40, the brim guide plate 40 can provide a lateral force for the material leaking down the sides of the brim, and guide the material to other places, which can better protect the battery at the bottom of the brim.

[0027] In another technical solution, the thickness of the inner baffle 42 is greater than the thickness of the outer baffle 45. This design is because the inner baffle 42 will rub against the material, so the thickness of the inner baffle needs to be designed to be thicker than that of the outer baffle 45. This is to ensure the structural strength of the inner baffle 42 and prevent excessive wear from affecting the structural strength failure of the side baffle.

[0028] In another technical solution, the cargo box brim 1 further includes a front baffle 32 and a front top reinforcing rib 34. The front baffle 32 is located on the end of the top plate away from the cargo box body and is fixedly connected to the top plate. The front top reinforcing rib 34 is located between the top plate and the front baffle 32. Specifically, multiple front top reinforcing ribs 34 are connected between the front baffle 32 and the retaining plate 38. The front top reinforcing ribs 34 are arranged along the length direction of the cargo box body and are located on the side of the rear top reinforcing rib 35 away from the cargo box body. The multiple front top reinforcing ribs 34 are spaced apart along the width direction of the cargo box body. The beneficial effect of this technical solution is that by setting the front baffle 32, material can be effectively prevented from flowing out from the top of the cargo box brim 1. By setting the front top reinforcing rib 34, the connection strength between the front baffle and the main brim plate is improved.

[0029] In another technical solution, the cargo box body includes a cargo box bottom plate 3, a cargo box front plate 2, and a cargo box side plate; the cargo box bottom plate 3 is provided with main longitudinal beams 8 and cross beams 10 in both directions; the rear end of the cargo box bottom plate 3 is provided with a rear cross beam 16, the main longitudinal beams 8 are arranged along the length direction of the cargo box bottom plate 3, and the cross beams 10 are arranged along the width direction of the cargo box bottom plate 3.

[0030] In the above technical solution, the cargo box body includes a cargo box bottom plate 3, a pair of cargo box side plates, and a cargo box front plate 2. The cargo box front plate 2 is vertically arranged and perpendicular to the front end of the cargo box bottom plate 3, forming an L-shaped structure. The pair of side plates are respectively vertically installed at both ends of the cargo box bottom plate 3 in the width direction and connected to both ends of the cargo box front plate 2, forming a cargo box main frame with a closed front end and side plates on both sides. In actual use, in order to further improve the structural strength of the cargo box, a cargo box corner plate 5 can be provided at the bottom connection between the cargo box side plates and the cargo box bottom plate 3 inside the cargo box. The cargo box corner plate 5 is connected to both the cargo box side plates and the cargo box bottom plate 3 to improve the structural strength of the cargo box and prevent material from sticking to the cargo box. The pair of cargo box side plates are a cargo box left side plate 4 and a cargo box right side plate 6. The cargo box floor 3 includes a large floor plate 13, main longitudinal beams 8 and transverse beams 10 arranged longitudinally and transversely on the large floor plate 13, and a rear transverse beam 16 at the rear end of the large floor plate 13. The main longitudinal beams 8 and transverse beams 10 can be made of channel steel or I-beams, and the rear transverse beam 16 can be made of H-beams. The main longitudinal beams 8 are evenly distributed along the length of the large floor plate 13 and welded to the bottom of the large floor plate 13. The transverse beams 10 are evenly distributed along the width of the large floor plate 13 and welded to the bottom of the large floor plate 13. The main longitudinal beams 8 and transverse beams 10 form a crisscrossing support structure. The rear transverse beam 16 is welded to the bottom of the rear end of the large floor plate 13. The rear end of the large floor plate 13 is provided with a rear reinforcing rib 15, which is arranged along the width of the cargo box floor 3. In this technical solution, when the cargo box is loaded with materials, the weight of the materials is transferred to the main longitudinal beams 8 and cross beams 10 through the bottom plate 13. The crisscrossing frame structure formed by the main longitudinal beams 8 and cross beams 10 can evenly distribute the load across the entire cargo box bottom plate 3, preventing excessive local stress and deformation or damage to the cargo box bottom plate 3. The rear cross beam 16 strengthens the structural strength of the rear end of the cargo box bottom plate 3, effectively resisting the impact of materials on the rear end of the cargo box bottom plate 3 during unloading, and preventing cracking and other problems at the rear end of the cargo box bottom plate 3.

[0031] The beneficial effects of adopting this technical solution are that the structural strength and rigidity of the cargo box body are significantly improved, enabling it to withstand the loading of large amounts of materials and various loads during transportation, reducing the probability of deformation, cracking and other failures of the cargo box bottom plate 3 and cargo box side plates, and extending the service life of the cargo box; at the same time, the crisscrossing main longitudinal beams 8 and transverse beams 10 structure makes the overall stability of the cargo box better, and it can better resist bumps and impacts when driving on harsh off-road conditions, ensuring the safety and reliability of the transportation process.

[0032] In another technical solution, a pair of flip seats 14 are provided at the rear end of the bottom of the cargo box bottom plate 3, and the pair of flip seats 14 are spaced apart along the width direction of the cargo box bottom plate 3. The flipping seat 14 includes a pair of flipping beams 18 spaced apart along the width direction of the cargo box bottom plate 3. A reinforcing limiting plate 21 is connected between the rear ends of the pair of flipping beams 18. The reinforcing limiting plate 21 is used to restrict the cargo box from continuing to flip when the cargo box is flipped to a set position. In the above technical solution, a pair of flip seats 14 are provided at the bottom of the cargo box bottom plate 3, and the pair of flip seats 14 are distributed at intervals along the width direction of the cargo box bottom plate 3; each flip seat 14 includes a pair of flip beams 18 spaced apart along the width direction of the cargo box bottom plate 3, and the rear end of the flip beams 18 is connected to a reinforcing limiting plate 21 for limiting the cargo box when it is flipped. The flip beams 18 are vertical plates, and the rear end of the pair of flip beams 18 is connected to the reinforcing limiting plate 21. Limiting components adapted to the reinforcing limiting plate 21 can be set in advance at corresponding positions on the frame. In this way, when the cargo box is flipped for unloading, as the angle of the cargo box increases, the reinforcing limiting plate 21 will gradually approach the frame. When the cargo box is flipped to a set angle, the reinforcing limiting plate 21 contacts the limiting component on the frame, and the limiting component prevents the cargo box from continuing to flip, thereby playing a limiting role and avoiding structural damage or safety accidents caused by excessive flipping of the cargo box.

[0033] The beneficial effects of adopting this technical solution are that the setting of the tilting seat 14 and the tilting beam 18 provides support points for the tilting of the cargo box, ensuring the stability of the tilting process; the reinforced limiting plate 21 can accurately limit the tilting angle of the cargo box, prevent the cargo box from tilting excessively, protect the structural safety of the cargo box and the frame, and improve the reliability and safety of the dump truck during the unloading process.

[0034] In another technical solution, the flipping seat 14 further includes a safety support seat 20, which is located on the rear end side of the reinforcing limiting plate 21. One end of the safety support seat 20 is connected to the flipping seat 14 and the other end is connected to the main longitudinal beam 8. The safety support seat 20 is provided with a pin hole. In this technical solution, the safety support seat 20 includes a pair of vertical plates spaced apart along the width direction of the cargo box bottom plate 3. The safety support seat 20 is arranged along the length direction of the cargo box bottom plate 3. One end of the safety support seat 20 is connected to the flip seat 14, and the other end of the safety support seat 20 is connected to the nearby main longitudinal beam 8. Both vertical plates are provided with pin holes. When it is necessary to lift the cargo box for vehicle maintenance, a special pin shaft can be used to connect it to the frame. The specific process is as follows: lift the cargo box to the maximum angle, then release the pin shaft in the pin holes of the pair of vertical plates, align the pin holes of the pair of vertical plates with the holes on the corresponding connecting plates on the frame (a pair of connecting plates are installed in advance at the corresponding position on the frame, and the connecting plates are provided with holes so that the vertical plates are inserted into the pair of connecting plates, and the pin holes on the vertical plates are aligned and coaxial with the holes on the connecting plates), and then pass the pin shaft through the pin holes to fix the lifting position of the cargo box, thereby ensuring the safety of maintenance personnel.

[0035] In another technical solution, a pair of lifting seats 7 are provided at the front end of the bottom of the cargo box floor 3. The pair of lifting seats 7 are spaced apart along the width direction of the cargo box floor 3. The lifting seats 7 include a reinforcing bottom plate 24, a pair of vertical plates 27, a pair of reinforcing curved plates 23, two pairs of threaded blocks 25, and a pair of lifting shaft fixing plates 26 provided on the cargo box floor 3. The pair of vertical plates 27 are spaced apart along the width direction of the cargo box bottom plate 3. The pair of reinforcing curved plates 23 are arranged back-to-back and respectively on both sides of the pair of vertical plates 27 along the length direction of the cargo box bottom plate 3. The bottom end of the reinforcing curved plate 23 is connected to the reinforcing bottom plate 24, and the top end is curved upward and connected to the crossbeam 10. The ends of the pair of vertical plates 27 are connected to the reinforcing curved plates 23. The vertical plates 27 are provided with pin holes for installing lifting cylinders. The pin holes are provided with spacer rings 28. The two pairs of threaded blocks 25 are respectively arranged on both sides of the pair of vertical plates 27 along the width direction of the cargo box bottom plate 3. The two threaded blocks 25 in each pair of threaded blocks 25 are arranged along the width direction of the cargo box bottom plate 3. The cargo box bottom plate 3 is spaced along the length of the vertical plate 27. A pair of lifting shaft fixing plates 26 are respectively disposed on the outside of two pairs of threaded blocks 25. The lifting shaft fixing plates 26 and the corresponding pair of threaded blocks 25 are movably attached. The vertical plate 27, the lifting shaft fixing plates 26 and the corresponding pair of threaded blocks 25 form an insertion space for the lifting pin cover plate 31. The threaded blocks 25 are provided with a first threaded hole. The lifting shaft fixing plates 26 are provided with a second threaded hole at the location corresponding to the first threaded hole. The pair of threaded blocks 25 and the corresponding lifting shaft fixing plates 26 are fixedly connected by bolts screwed into the first threaded hole and the second threaded hole. In the above technical solution, a pair of lifting seats 7 are provided at the front end of the cargo box bottom plate 3, and the pair of lifting seats 7 are distributed at intervals along the width of the cargo box bottom plate 3; the lifting seat 7 is composed of a reinforcing bottom plate 24, a vertical plate 27, a reinforcing bent plate 23, a threaded block 25, a lifting shaft fixing plate 26, etc.; the vertical plate 27 is provided with a pin hole and a spacer ring 28 is provided in the hole; The reinforcing base plate 24 is welded to the base plate 13. A pair of vertical plates 27 are vertically welded to the reinforcing base plate 24 and spaced apart along the width direction. The bottom end of the reinforcing curved plate 23 is welded to the reinforcing base plate 24, and the top end curves upward and is welded to the adjacent crossbeam 10. Two pairs of threaded blocks 25 are respectively located on both sides of the pair of vertical plates 27 along the width direction of the cargo box base plate 3, and the threaded blocks 25 are welded to the corresponding vertical plates 27. The pair of threaded blocks 25 located on the same side are spaced apart along the length direction of the cargo box base plate 3. The lifting shaft fixing plate 26 is located outside the pair of threaded blocks 25 and is attached to the threaded blocks 25. The space enclosed between the lifting shaft fixing plate 26, the pair of threaded blocks 25, and the vertical plates 27 is used to insert the cover plate 31 for fixing the lifting pin shaft. Figure 4 As shown, the existing lifting pin includes a pin body 30 and a cover plate 31 located at one end of the pin body 30. The cover plate 31 is inserted into the enclosed space. The threaded block 25 has a first threaded hole, and the lifting shaft fixing plate 26 has a second threaded hole corresponding to the first threaded hole. A pair of threaded blocks 25 and the corresponding lifting shaft fixing plate 26 are fixedly connected by bolts screwed into the first threaded hole and the second threaded hole. During operation, when installing the lifting cylinder, the cylinder pin is inserted into the pin hole of the vertical plate 27, and the spacer ring 28 reduces friction and wear. After the cover plate 31 of the lifting pin is inserted into the space formed by the vertical plate 27, the lifting shaft fixing plate 26, and the threaded block 25, the lifting shaft fixing plate 26 and the threaded block 25 are fixed with bolts to ensure that the cover plate 31 is firmly installed. When the cargo box needs to be lifted, the lifting cylinder drives the lifting seat 7 through the pin, which in turn pushes the cargo box to rotate around the tilting seat 14 to achieve unloading. The reinforcing bent plate 23 connects the vertical plate 27 to the crossbeam 10, enhancing the overall rigidity of the lifting seat 7, so that the load can be evenly transmitted to the cargo box bottom plate 3 structure during the lifting process, avoiding excessive local stress.

[0036] The beneficial effects of adopting this technical solution are that the structural strength and stability of the lifting seat 7 are significantly improved, enabling it to reliably withstand the thrust of the lifting cylinder and the load during cargo box lifting, reducing the risk of deformation and damage to the lifting seat 7 components; the setting of the spacer ring 28 reduces the wear between the pin hole and the pin shaft, extending the service life of the lifting seat 7; the installation structure of the lifting pin shaft cover plate 31 facilitates disassembly and maintenance, improving the convenience of maintenance, while ensuring the safety and reliability of the lifting system, making the cargo box more stable and reliable during lifting and unloading.

[0037] In another technical solution, the reinforcing base plate 24 is provided with plug welding holes; by designing plug welding holes, it is convenient to weld the reinforcing base plate 24 to the base plate 13, thereby improving the connection reliability between the reinforcing base plate 24 and the base plate 13.

[0038] In another technical solution, an L-shaped notch 50 is provided at one end of the side panel of the cargo box near the cargo box brim 1. The side baffle is inserted into the notch 50 and welded to it. Specifically, an L-shaped notch 50 is provided at one end of the side panel of the cargo box near the cargo box brim 1. This notch 50 is adapted to the bottom of the L-shaped side baffle and the L-shaped wall formed by the side baffle near the side wall of the cargo box body, so that the side baffle is inserted into the notch 50 and welded to improve the connection strength.

[0039] In another technical solution, the cargo box side panel includes a large side panel 52, an upper horizontal rib 49 located on the upper part of the outer wall of the large side panel 52, a lower horizontal rib 51 located on the lower part of the outer wall of the large side panel 52, a front vertical rib 48 located at the front end of the large side panel 52, a rear vertical rib 56 located at the rear end of the large side panel 52, an edge beam for the upper horizontal rib 49 located at the end of the top notch 50 of the side panel away from the cab, and a rear horizontal rib 55 located at the lower rear end of the large side panel 52. A rear reinforcing plate 57 is provided at the rear end of the cargo box side panel. The upper horizontal rib 49 and the edge beam 54 are mainly for protecting the cargo box side panel from above, preventing it from being deformed by materials during loading. The rear horizontal rib 55, the rear vertical rib 56, and the rear reinforcing plate 57 effectively prevent the cargo box side panel from being deformed by materials during unloading. The front vertical rib 48 and the lower horizontal rib 51 are for increasing the overall strength of the cargo box side panel. The left and right side panels of the cargo box are equipped with round tubes 53, and the position of the round tubes 53 is calculated based on the center of gravity of the cargo box. The entire cargo box can be lifted vertically through the round holes of the four round tubes 53.

[0040] In another technical solution, the rear end of the cargo box bottom plate 3 is curved upwards. This design can prevent materials from overflowing from the rear end of the cargo box bottom plate 3, thus improving the practicality of the cargo box.

[0041] An off-highway dump truck is characterized by including the off-highway dump truck cargo box. The off-highway dump truck containing the off-highway dump truck cargo box has a raised brim, which provides a larger operating space for battery swapping. At the same time, by strengthening the structure of the cargo box brim 1, the raised cargo box brim 1 structure has high strength and high safety and reliability.

[0042] The number of devices and processing capacity described herein are for simplification. Applications, modifications, and variations of the off-highway dump truck cargo box of this invention will be readily apparent to those skilled in the art.

[0043] 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. An off-highway dump truck bed, characterized in that, Includes the cargo box body and a cargo box visor located on top of the front panel of the cargo box, the cargo box visor including a visor main plate and a pair of side baffles: The main body of the brim includes a vertical plate and a top plate. The vertical plate is fixedly connected to the top plate and the vertical plate is fixedly connected to the top of the front panel of the cargo box. The side baffle includes an inner baffle, an outer baffle, a top plate, and a bottom plate that surround and form a box structure. The inner baffle is close to the interior of the cargo box body, and the bottom plate is located between the inner baffle and the outer baffle. Multiple reinforcing plates are spaced apart along the length of the cargo box body inside the side baffle. The top of the reinforcing plate is connected to the top plate, and the bottom of the reinforcing plate is connected to the bottom plate. A pair of side baffles are located at both ends of the main baffle plate along the width of the cargo box and are adapted to the main baffle plate.

2. The off-highway dump truck bed of claim 1, wherein, The vertical plate of the main brim is provided with longitudinal reinforcing ribs in the vertical direction, and the top plate of the main brim is provided with rear top reinforcing ribs in the length direction of the cargo box body. Diagonal bracing reinforcing ribs are welded between the rear top reinforcing ribs and the longitudinal reinforcing ribs.

3. The off-highway dump truck bed of claim 1, wherein, It also includes a pair of brim guide plates, which are triangular boxes. The brim guide plates are arranged along the length of the cargo box body. The pair of brim guide plates correspond one-to-one with the pair of side baffles. One right-angle side of the brim guide plate is connected to the corresponding outer baffle so that the inclined side of the brim guide plate faces away from the inside of the cargo box body to guide the material.

4. The off-highway dump truck bed of claim 1, wherein, The cargo box brim also includes a front baffle and a front top reinforcing rib. The front baffle is located at the end of the top plate away from the cargo box body and is fixedly connected to the top plate. The front top reinforcing rib is located between the top plate and the front baffle.

5. The off-highway dump truck bed of claim 1, wherein, The cargo box body includes a cargo box bottom plate, a cargo box front plate, and cargo box side plates; the cargo box bottom plate is provided with main longitudinal beams and transverse beams, and the rear end of the cargo box bottom plate is provided with a rear transverse beam. The main longitudinal beams are arranged along the length direction of the cargo box bottom plate, and the transverse beams are arranged along the width direction of the cargo box bottom plate.

6. The off-highway dump truck bed of claim 5, wherein, The rear end of the bottom of the cargo box floor is provided with a pair of flip seats, and the pair of flip seats are spaced apart along the width direction of the cargo box floor. The flipping seat includes a pair of flipping beams spaced apart along the width direction of the cargo box bottom plate. A reinforcing limiting plate is connected between the rear ends of the pair of flipping beams. The reinforcing limiting plate is used to restrict the cargo box from continuing to flip when the cargo box is flipped to a set position.

7. The off-highway dump truck bed of claim 6, wherein, The flipping seat also includes a safety support seat, which is located on the rear end side of the reinforcing limiting plate. One end of the safety support seat is connected to the flipping seat and the other end is connected to the main longitudinal beam. The safety support seat is provided with a pin hole.

8. The off-highway dump truck bed of claim 5, wherein, The front end of the bottom of the cargo box floor is provided with a pair of lifting seats. The pair of lifting seats are spaced apart along the width direction of the cargo box floor. The lifting seats include a reinforcing bottom plate, a pair of vertical plates, a pair of reinforcing curved plates, two pairs of threaded blocks, and a pair of lifting shaft fixing plates provided on the cargo box floor. The pair of vertical plates are spaced apart along the width of the cargo box bottom plate. The pair of reinforcing curved plates are arranged back-to-back and are respectively located on both sides of the pair of vertical plates along the length of the cargo box bottom plate. The bottom end of the reinforcing curved plate is connected to the reinforcing bottom plate, and the top end is curved upward and connected to the crossbeam. The ends of the pair of vertical plates are connected to the reinforcing curved plates. The vertical plates are provided with pin holes for installing lifting cylinders. The pin holes are provided with spacer rings. The two pairs of threaded blocks are respectively located on both sides of the pair of vertical plates along the width of the cargo box bottom plate. Two threaded blocks in each pair are spaced apart along the length of the cargo box bottom plate on the vertical plates. The pair of lifting shaft fixing plates are respectively located on the outside of the two pairs of threaded blocks. The lifting shaft fixing plates are movably attached to the corresponding pair of threaded blocks. The vertical plates, the lifting shaft fixing plates, and the corresponding pair of threaded blocks form an insertion space for the lifting pin cover plate. The threaded block has a first threaded hole, and the lifting shaft fixing plate has a second threaded hole corresponding to the first threaded hole. The pair of threaded blocks and the corresponding lifting shaft fixing plate are fixedly connected by bolts screwed into the first threaded hole and the second threaded hole.

9. The off-highway dump truck bed of claim 5, wherein, The cargo box side panel includes a side panel, an upper horizontal rib on the upper part of the outer wall of the side panel, a lower horizontal rib on the lower part of the outer wall of the side panel, a front vertical rib on the front end of the side panel, a rear vertical rib on the rear end of the side panel, an upper horizontal rib edge beam on the side panel top notch away from the cab, and a rear horizontal rib on the lower part of the rear end of the side panel.

10. Off-highway dump truck, characterized in that Includes the off-highway dump truck cargo box as described in any one of claims 1 to 9.

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