A kind of wide-body dump truck container arc-shaped whole plate intermediate frame-free rear door structure

Abstract

The utility model belongs to the technical field of dump truck container, concretely relates to a wide-body dump truck container's arc whole plate no intermediate skeleton's rear door structure. The utility model includes: arc rear plate, is divided into upper plate, middle plate and lower plate, and the middle plate is equipped with a plurality of horizontal bending lines, and the both ends of upper plate and lower plate all stretch the both sides of middle plate, upper crossbeam and lower crossbeam, upper crossbeam is established on upper plate, lower crossbeam is established on lower plate, and upper crossbeam and lower crossbeam are located the convex surface of arc rear plate simultaneously, left vertical roof beam and right vertical roof beam are respectively abutted on the both sides of upper crossbeam and lower crossbeam, and are located the same plane of arc rear plate with upper crossbeam and lower crossbeam, and the side of left vertical roof beam abuts the side of middle plate, and the side of right vertical roof beam abuts the other side of middle plate. The utility model is used to solve the technical problem that the tolerance capacity of the rear door structure of the existing wide-body dump truck is small when coping with the elastic deformation caused by the impact of huge stone and other large materials, and the rear door is prone to welding, deformation or fracture, which leads to the problem that the rear door cannot be normally opened and closed.

Description

Technical Field

[0001] This utility model belongs to the technical field of dump truck cargo boxes, specifically relating to a rear door structure of a wide-body dump truck cargo box with an arc-shaped single plate and no intermediate frame. Background Technology

[0002] Wide-body dump trucks are commonly used in mines and large-scale infrastructure projects, requiring frequent short-distance transport of ores, building material waste, etc. The conventional rear door design of wide-body dump trucks uses a flat-panel covered welded mesh-like channel steel frame. While this meets the basic operational requirements of the rear door, the design prioritizes increased structural rigidity and strength to withstand maximum impact, resulting in a heavy rear door with low structural toughness and limited elastic deformation. This makes it less resistant to elastic deformation caused by impacts from large materials like boulders, easily leading to weld cracking, deformation, and breakage. Consequently, the conventional rear door generally has the highest failure rate among all cargo box components. Utility Model Content

[0003] This utility model provides a rear door structure with an arc-shaped solid plate and no intermediate frame for the cargo box of a wide-body dump truck. It is used to solve the technical problem that the rear door structure of existing wide-body dump trucks has low resistance to elastic deformation caused by the impact of large materials such as boulders, which easily leads to the rear door opening, deformation or breakage, resulting in the inability to open and close the rear door normally.

[0004] This utility model includes: an arc-shaped back plate, which is divided into an upper plate, a middle plate and a lower plate. The middle plate is provided with multiple horizontal bending lines, and both ends of the upper plate and the lower plate extend out of the two sides of the middle plate.

[0005] An upper crossbeam and a lower crossbeam, wherein the upper crossbeam is disposed on the upper plate and the lower crossbeam is disposed on the lower plate, and the upper crossbeam and the lower crossbeam are simultaneously located on the convex surface of the arc-shaped rear plate;

[0006] The left and right vertical beams abut against the sides of the upper and lower horizontal beams, respectively, and are located on the same side of the arc-shaped rear plate as the upper and lower horizontal beams. One side of the left vertical beam abuts against one side of the middle plate, and one side of the right vertical beam abuts against the other side of the middle plate.

[0007] This utility model uses an arc-shaped rear plate instead of the original flat plate. Because the arc-shaped rear plate increases the structural strength through several bending lines, the mesh-like channel steel frame is eliminated. This structure effectively reduces the self-weight while still having good overall rigidity and strength, as well as good elastic deformation resistance. It ensures that the overall structural strength can withstand the rigid impact of large materials such as boulders, while also increasing the structural elastic deformation capacity, effectively reducing the failure rate of the rear door and extending the service life of the entire cargo box.

[0008] Furthermore, the upper crossbeam, lower crossbeam, left vertical beam, and right vertical beam are all C-shaped bent steel beams, and the openings of the upper crossbeam, lower crossbeam, left vertical beam, and right vertical beam are all fitted and connected to the arc-shaped back plate. The beneficial effects of this step are: the upper crossbeam, lower crossbeam, left vertical beam, and right vertical beam are made by bending thin plates instead of using square steel pipes or other profiles, which can effectively reduce weight; and the fitted arc-shaped back plate ensures that the opening distance does not change, resulting in structural stability.

[0009] Furthermore, a corresponding reinforcing plate is provided in the gap between the upper plate and the lower plate. The reinforcing plate is also attached to the corresponding left vertical beam and right vertical beam. The beneficial effect of this step is that the reinforcing plate can seal the openings of the left vertical beam and right vertical beam, thereby strengthening the structure.

[0010] Furthermore: the convex surface of the arc-shaped rear plate is provided with a combined reinforcing plate, the combined reinforcing plate includes four triangular reinforcing plates and two outer reinforcing plates, the four triangular reinforcing plates are respectively located at the inner corner of the frame formed by the upper crossbeam, the lower crossbeam, the left vertical beam and the right vertical beam, and the triangular reinforcing plates are simultaneously connected to the arc-shaped rear plate;

[0011] The outer reinforcing plates are respectively disposed on both sides of the arc-shaped rear plate, and cover the upper crossbeam, the lower crossbeam and the triangular reinforcing plate at the corresponding positions, as well as the left vertical beam or the right vertical beam. The beneficial effect of this step is to increase the overall structural strength of the rear door by combining the reinforcing plates.

[0012] Furthermore: the concave surface of the arc-shaped rear plate is provided with a left vertical push plate and a right vertical push plate;

[0013] Both the left and right vertical push plates include a flat surface and an inclined surface. The flat surface corresponds to and is attached to the left and right reinforcing plates, respectively. The outer edge of the inclined surface is attached to the middle plate. The beneficial effect of this step is that the left and right vertical push plates can shield the welds between the middle plate and the left and right vertical beams, avoiding direct impact.

[0014] Furthermore, both the left and right vertical beams are provided with upper blocking plates at their tops and lower blocking plates at their bottoms. The beneficial effect of this step is that the upper and lower blocking plates improve the structural stability of the left and right vertical beams.

[0015] Furthermore, the top of the upper crossbeam is also provided with an anti-smashing beam, which has the following beneficial effect: the anti-smashing beam plays a role in preventing smashing.

[0016] Furthermore: the left vertical beam and the right vertical beam are both provided with a reinforcement plate in the middle, and the lower cross beam is provided with a pad in the middle. The beneficial effect of this step is that the reinforcement plate and the pad are both used to reinforce the rear door locking position and prevent deformation.

[0017] The beneficial effects of this utility model are:

[0018] 1. This application uses an arc-shaped rear plate with several bends instead of a flat plate and a grid-like channel steel frame. This structure effectively reduces the weight while still having good overall rigidity and strength, as well as good elastic deformation resistance. It ensures that the overall structural strength can withstand the rigid impact of large materials such as boulders, while also increasing the elastic deformation capacity of the structure, effectively reducing the failure rate of the rear door and extending the service life of the entire cargo box.

[0019] 2. This application solves the shortcomings of the rear door structure of the cargo box of wide-body dump truck, which is weak in load-bearing capacity, prone to failure and damage due to harsh working conditions. At the same time, it also greatly improves the adaptability and service life of the cargo box, and provides customers with better economic benefits. Attached Figure Description

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

[0021] Figure 1 This is a perspective view of the rear door structure of the wide-body dump truck cargo box with an arc-shaped solid plate and no intermediate frame, as described in a specific embodiment of the present utility model.

[0022] Figure 2 This is an exploded view of the rear door structure of the wide-body dump truck cargo box with an arc-shaped solid plate and no intermediate frame, as described in a specific embodiment of this utility model.

[0023] Figure 3 This is a structural diagram of the arc-shaped, single-panel rear door structure of the wide-body dump truck cargo box without a middle frame, as described in a specific embodiment of this utility model.

[0024] Figure 4 for Figure 3 Rear view;

[0025] Figure 5 for Figure 4 Sectional view along the middle AA direction;

[0026] Figure 6 for Figure 4Sectional view along the BB direction;

[0027] Figure 7 This is a schematic diagram of the arc-shaped rear panel in the arc-shaped single-panel rear door structure of the wide-body dump truck cargo box without intermediate frame, as described in a specific embodiment of this utility model.

[0028] Figure label:

[0029] 1-Arc-shaped back plate; 11-Upper plate; 12-Middle plate; 13-Lower plate; 14-Bending line; 21-Upper crossbeam; 22-Lower crossbeam; 31-Left vertical beam; 32-Right vertical beam; 4-Reinforcing plate; 5-Triangular reinforcing plate; 6-Outer reinforcing plate; 71-Left vertical push plate; 72-Right vertical push plate; 81-Upper blocking plate; 82-Lower blocking plate; 91-Repair plate; 92-Pad plate. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Implementation of this application, for example Figures 1-7As shown, the rear door structure of the wide-body dump truck cargo box with an arc-shaped solid plate and no intermediate frame provided in this application can solve the technical problem that the rear door structure of the existing wide-body dump truck has a low tolerance to elastic deformation caused by the impact of large materials such as boulders, which easily causes the rear door to open, deform or break, resulting in the inability to open and close the rear door normally.

[0035] This application includes: an arc-shaped rear plate 1, which is divided into an upper plate 11, a middle plate 12 and a lower plate 13. The middle plate 12 is provided with multiple horizontal bending lines 14. The two ends of the upper plate 11 and the lower plate 13 extend out of both sides of the middle plate 12, wherein the bending shape of the middle plate 12 is symmetrical.

[0036] The upper crossbeam 21 and the lower crossbeam 22 are provided on the upper plate 11 and the lower crossbeam 22 is provided on the lower plate 13, and the upper crossbeam 21 and the lower crossbeam 22 are located on the convex surface of the arc-shaped rear plate 1.

[0037] The left vertical beam 31 and the right vertical beam 32 abut against the sides of the upper horizontal beam 21 and the lower horizontal beam 22, respectively, and are located on the same side of the arc-shaped rear plate 1 as the upper horizontal beam 21 and the lower horizontal beam 22. One side of the left vertical beam 31 abuts against one side of the middle plate 12, and one side of the right vertical beam 32 abuts against the other side of the middle plate 12.

[0038] This utility model uses an arc-shaped rear plate 1 instead of the original flat plate. Because the arc-shaped rear plate 1 has several bending lines 14 after bending, the structural strength is increased, and the grid-like channel steel frame is eliminated. This structure can effectively reduce the weight while still having good overall rigidity and strength, as well as good elastic deformation resistance. It can ensure that the overall structural strength can resist the rigid impact of large materials such as boulders, and also increase the elastic deformation capacity of the structure, effectively reducing the failure rate of the rear door and extending the service life of the entire cargo box.

[0039] Based on the above technical solution, the upper crossbeam 21, the lower crossbeam 22, the left vertical beam 31, and the right vertical beam 32 are all C-shaped bent steel beams, and the openings of the upper crossbeam 21, the lower crossbeam 22, the left vertical beam 31, and the right vertical beam 32 are all fitted and connected to the arc-shaped back plate 1. The upper crossbeam 21, the lower crossbeam 22, the left vertical beam 31, and the right vertical beam 32 are made by bending thin plates instead of using square steel pipes or other profiles, which can effectively reduce weight; and the fitted arc-shaped back plate 1 ensures that the opening distance does not change, and the structure is stable.

[0040] Based on the above technical solution, a corresponding reinforcing plate 4 is provided in the gap between the upper plate 11 and the lower plate 13. The reinforcing plate 4 is also attached to the corresponding left vertical beam 31 and right vertical beam 32. The reinforcing plate 4 can block the openings of the left vertical beam 31 and right vertical beam 32 and strengthen the structural strength.

[0041] Based on the above technical solution, the convex surface of the arc-shaped rear plate 1 is provided with a combined reinforcing plate, which includes four triangular reinforcing plates 5 and two outer reinforcing plates 6. The four triangular reinforcing plates 5 are respectively located at the inner corner of the frame formed by the upper crossbeam 21, the lower crossbeam 22, the left vertical beam 31 and the right vertical beam 32, and the triangular reinforcing plates 5 are simultaneously connected to the arc-shaped rear plate 1.

[0042] The outer reinforcing plates 6 are respectively provided on both sides of the arc-shaped rear plate 1, and cover the upper crossbeam 21, the lower crossbeam 22 and the triangular reinforcing plate 5 at the corresponding positions, as well as the left vertical beam 31 or the right vertical beam 32. The overall structural strength of the rear door is increased by combining the reinforcing plates.

[0043] Based on the above technical solution, the concave surface of the arc-shaped rear plate 1 is provided with a left vertical push plate 71 and a right vertical push plate 72;

[0044] Both the left vertical push plate 71 and the right vertical push plate 72 include a flat surface and an inclined surface. The flat surface corresponds to the left reinforcing plate 4 and the right reinforcing plate 4 respectively and is attached to it. The outer edge of the inclined surface is attached to the middle plate 12. The left vertical push plate 71 and the right vertical push plate 72 can cover the weld between the middle plate 12 and the left vertical beam 31 and the right vertical beam 32, so as to avoid direct impact.

[0045] Based on the above technical solution, the top of the left vertical beam 31 and the right vertical beam 32 are provided with an upper blocking plate 81, and the bottom of the left vertical beam 31 and the right vertical beam 32 are provided with a lower blocking plate 82. The upper blocking plate 81 and the lower blocking plate 82 improve the structural stability of the left vertical beam 31 and the right vertical beam 32.

[0046] Based on the above technical solution, the top of the upper crossbeam 21 is also provided with an anti-smashing beam 9, which plays the role of preventing smashing.

[0047] Based on the above technical solution, the left vertical beam 31 and the right vertical beam 32 are both provided with a reinforcement plate 91 in the middle, and the lower horizontal beam 22 is provided with a pad 92 in the middle. The reinforcement plate 91 and the pad 92 are both for reinforcing the rear door locking position to prevent deformation.

[0048] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A rear door structure of a wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame, characterized in that, include: The arc-shaped back plate is divided into an upper plate, a middle plate, and a lower plate. The middle plate has multiple horizontal bending lines, and both ends of the upper plate and the lower plate extend beyond the sides of the middle plate. An upper crossbeam and a lower crossbeam, wherein the upper crossbeam is disposed on the upper plate and the lower crossbeam is disposed on the lower plate, and the upper crossbeam and the lower crossbeam are simultaneously located on the convex surface of the arc-shaped rear plate; The left and right vertical beams abut against the sides of the upper and lower horizontal beams, respectively, and are located on the same side of the arc-shaped rear plate as the upper and lower horizontal beams. One side of the left vertical beam abuts against one side of the middle plate, and one side of the right vertical beam abuts against the other side of the middle plate.

2. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 1, characterized in that, The upper crossbeam, the lower crossbeam, the left vertical beam, and the right vertical beam are all C-shaped bent steel beams, and the openings of the upper crossbeam, the lower crossbeam, the left vertical beam, and the right vertical beam are all fitted and connected to the arc-shaped back plate.

3. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 2, characterized in that, A corresponding reinforcing plate is provided in the gap between the upper plate and the lower plate, and the reinforcing plate is also attached to and connected to the corresponding left vertical beam and right vertical beam.

4. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 3, characterized in that, The convex surface of the arc-shaped rear plate is provided with a combined reinforcing plate, which includes four triangular reinforcing plates and two outer reinforcing plates. The four triangular reinforcing plates are respectively located at the inner corner of the frame formed by the upper crossbeam, the lower crossbeam, the left vertical beam and the right vertical beam, and the triangular reinforcing plates are also connected to the arc-shaped rear plate. The outer reinforcing plates are respectively disposed on both sides of the arc-shaped rear plate, and cover the upper crossbeam, the lower crossbeam, and the triangular reinforcing plate at the corresponding positions, as well as the left vertical beam or the right vertical beam.

5. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 4, characterized in that, The concave surface of the arc-shaped rear plate is provided with a left vertical push plate and a right vertical push plate; Both the left and right vertical push plates include a flat surface and an inclined surface. The flat surface corresponds to and is attached to the left and right reinforcing plates, respectively. The outer edge of the inclined surface is attached to and connected to the middle plate.

6. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 5, characterized in that, The top of both the left and right vertical beams is provided with an upper end plate, and the bottom of both the left and right vertical beams is provided with a lower end plate.

7. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 6, characterized in that, The top of the upper crossbeam is also equipped with an anti-smashing beam.

8. The rear door structure of the wide-body dump truck cargo box with an arc-shaped single panel and no intermediate frame as described in claim 7, characterized in that, The left vertical beam and the right vertical beam are both provided with a patch plate in the middle, and the lower horizontal beam is provided with a pad plate in the middle.

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