CN117565642A - Tail gate and vehicle with same - Google Patents

Abstract

The application discloses tail gate and have its vehicle relates to the vehicle field. The present application provides a tail gate for mounting to a vehicle body, the tail gate comprising: the device comprises an arc-shaped plate, a first cross beam, a second cross beam, a first hanging lug beam, a second hanging lug beam and a heightening plate; the arc-shaped plate comprises a first plate surface and a second plate surface, the first plate surface faces the inner side of the vehicle body, the second plate surface faces the outer side of the vehicle body, at least part of the arc-shaped plate protrudes along a first direction, and the first direction is the direction from the first plate surface to the second plate surface; the first cross beam and the second cross beam are respectively connected to two ends of the arc-shaped plate in the second direction; the first hanging lug beam and the second hanging lug beam are respectively connected to two ends of the arc-shaped plate in the third direction; the heightening plate is connected with the first cross beam and is positioned between the first hanging lug beam and the second hanging lug beam; the first direction, the second direction and the third direction are perpendicular to each other. The utility model provides a can improve the bulk strength of tail-gate to a certain extent, make the tail-gate be difficult for producing the deformation when receiving the load.

Description

Tail gate and vehicle with same

Technical Field

The invention relates to the technical field of vehicles, in particular to a tail gate and a vehicle with the same.

Background

In existing vehicles, a tail gate is typically provided, which is an important part of the vehicle. Currently, tail gates of some vehicles, such as dump trucks, employ a double-layer or single-layer structure. However, the existing tail gate generally has the defects of multiple main frames, heavy weight and long welding seams, so that the applicability of the tail gate to lightweight vehicle types is poor, and the overall strength of the tail gate is still to be improved. Therefore, a new type of tail gate is to be developed.

Disclosure of Invention

In view of the above, the present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the tail gate and the vehicle with the same, which at least can solve the problems of more main frames, heavy weight, long welding lines and the like of the current tail gate.

In order to solve the technical problems, the application is realized as follows:

the embodiment of the application provides a tail gate for install to the automobile body, this tail gate includes: the device comprises an arc-shaped plate, a first cross beam, a second cross beam, a first hanging lug beam, a second hanging lug beam and a heightening plate;

the arc plate comprises a first plate surface and a second plate surface, the first plate surface faces the inner side of the vehicle body, the second plate surface faces the outer side of the vehicle body, at least part of the arc plate protrudes along a first direction, and the first direction is the direction from the first plate surface to the second plate surface;

the first cross beam and the second cross beam are respectively connected to two ends of the arc-shaped plate in the second direction;

the first hanging lug beam and the second hanging lug beam are respectively connected to two ends of the arc-shaped plate in the third direction;

the heightening plate is connected with the first cross beam and is positioned between the first hanging lug beam and the second hanging lug beam; wherein,

the first direction, the second direction and the third direction are perpendicular to each other.

In addition, the tail gate according to the application can also have the following additional technical characteristics:

in some embodiments, two ends of the arc plate in the second direction are respectively protruded along the first direction;

and/or, two ends of the arc-shaped plate in the third direction are respectively protruded along the first direction.

In some of these embodiments, the tailgate further comprises a first reinforcement panel;

the first reinforcing plate is connected to the connecting positions of the arc-shaped plate, the first cross beam and the first hanging lug beam, and the connecting positions of the arc-shaped plate, the first cross beam and the second hanging lug beam respectively.

In some of these embodiments, the tailgate further comprises a second reinforcement panel;

the second reinforcing plate is respectively connected to the connection parts of the arc-shaped plate, the second cross beam and the first hanging lug beam, and the connection parts of the arc-shaped plate, the second cross beam and the second hanging lug beam.

In some of these embodiments, the first hanger beam is provided with a first hanger and the second hanger beam is provided with a second hanger, the first and second hangers each extending in a direction opposite to the first direction.

In some embodiments, one of the height increasing plate and the first cross beam is provided with a plurality of bolts, the bolts are arranged at intervals along the third direction, the other one is provided with a plurality of slots, and the slots are arranged at intervals along the third direction;

the bolts are in one-to-one corresponding plug-in fit with the slots.

In some embodiments, the side wall of the plug is provided with a first limiting hole, and the side wall of the slot is provided with a plurality of second limiting holes;

the first limiting holes are correspondingly arranged with one of the second limiting holes, and limiting pieces are arranged in the first limiting holes and the corresponding second limiting holes in a penetrating mode.

In some embodiments, the tail gate further comprises a support beam, two ends of the support beam are respectively connected to the first beam and the second beam.

In some of these embodiments, the arcuate plate is a unitary structure;

or, the arc plate comprises a plurality of bending plate units, and the bending plate units are sequentially connected to form the arc plate.

In some embodiments, the arc plate is welded to the first cross beam, the second cross beam, the first hanger beam, and the second hanger beam, respectively.

The embodiment of the application also provides a vehicle, which comprises a vehicle body and the tail gate;

the tail door is connected to the tail of the car body in an openable and closable manner through the first hanging lugs and the second hanging lugs.

The implementation of the technical scheme of the application has at least the following beneficial effects:

in this application embodiment, the tail-gate that provides through adopting the arc, can improve the bulk strength of tail-gate to a certain extent, makes the tail-gate be difficult for producing when receiving the load and warp, compares in the mode of some tail-gates that form with tail-gate mainboard and a plurality of main frame welding, and the tail-gate in this application embodiment both can guarantee the bulk strength of tail-gate, can need not to set up a plurality of main frames again, also need not to adopt the large tracts of land welding form to can reduce the use of material, reduce the welding volume, lighten the quality of tail-gate, and, can also reduce manufacturing process's complexity. Through increasing the setting of increasing the board, can make the tail-gate adjustable in the height, can satisfy different high demands.

Therefore, the tail gate can achieve the purposes of reducing the frame, the welding amount and the cost by arranging the arc-shaped plates, and can meet the requirements of light weight, less welding lines, firmness and reliability; and through the setting of increasing the board for the tail-gate has high adjustable function, has strengthened the suitability of tail-gate, has good application scenario in the vehicle like tipper field.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing embodiments of the present invention in more detail with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, and not constitute a limitation to the invention. In the drawings, like reference numerals generally refer to like parts or steps.

FIG. 1 is a schematic view of the inside of a tailgate according to a first form of the disclosure;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the structure of the outside of the tailgate of the first form disclosed in the embodiments of the present application;

FIG. 4 is a schematic view of the structure of the outside of a tailgate according to a second form of the disclosure;

fig. 5 is a schematic view illustrating a structure of an inner side of a tailgate according to a second form of the present disclosure.

Reference numerals illustrate:

10-arc-shaped plates; 11-a first panel; 12-a second plate surface; 13-bending plate units; 14-supporting the beam;

21-a first beam; 211-slots; 2111-a second limiting hole; 22-a second cross beam;

31-a first hanger beam; 311-first hangers; 32-second hanger beams; 321-second hangers;

41-a first reinforcing plate; 42-a second reinforcing plate;

50-heightening plates; 51-a bolt; 511-a first limiting aperture;

60-limiting piece.

Detailed Description

In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, rear, top, bottom … …) in embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the figures), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 5, in some embodiments, a tail gate is provided, which may be used for mounting to a vehicle body, that is, the tail gate may be applied to a vehicle, including, but not limited to, a dump truck, a muzzle truck, a dump truck, a van, etc., and the dump truck will be mainly described as an example of a vehicle, although the tail gate may be applied to other types of vehicles, and is not particularly limited herein.

The provided tail gate comprises an arc-shaped plate 10, a first cross beam 21, a second cross beam 22, a first hanger beam 31 and a second hanger beam 32; further, the tailgate may further include a step up plate 50.

Wherein, the arc-shaped plate 10 can be arranged opposite to the opening at the tail end of the vehicle body and is used for blocking the materials carried by the vehicle body so as to prevent the materials from falling off; the first beam 21 and the second beam 22 respectively play a role in reinforcing the arc-shaped plate 10; the first hanger beam 31 and the second hanger beam 32 respectively play a reinforcing role for the arc plate 10, and it is also possible to mount the arc plate 10 to the vehicle body and make the arc plate 10 rotatable with respect to the vehicle body for facilitating the discharging.

The arc plate 10 has a first plate surface 11 and a second plate surface 12 disposed opposite to each other, the first plate surface 11 faces the inside of the vehicle body, the second plate surface 12 faces the outside of the vehicle body, and at least part of the arc plate 10 protrudes in a first direction, which is a direction from the first plate surface 11 to the second plate surface 12. Illustratively, the first panel 11 may be located inside the tailgate and the second panel 12 may be located outside the tailgate.

In practice, the tailgate may be mounted to the rear end of the vehicle body, where the first panel 11 is disposed facing the vehicle body and the second panel 12 is disposed facing away from the vehicle body, i.e., at least a portion of the tailgate is disposed protruding toward the outside of the vehicle body.

Based on the setting, compare in dull and stereotyped setting, adopt bellied mode can improve the bulk strength of tail-gate to a certain extent, make the tail-gate be difficult for producing the deformation when receiving the load. The arrangement of the arc-shaped plate 10 can enable the tail gate to meet the requirements of light weight, few welding seams, firmness, reliability and the like, and can prevent expansion, save materials and reduce welding seams.

Alternatively, the arc plate 10 may be a four-sided arc-shaped arc plate, for example, the upper side, the lower side, the left side and the right side of the arc plate 10 may have an arc shape, so as to form a four-sided arc-shaped arc plate. Alternatively, the arc plate may be an arc plate having an arc shape on the left and right.

The first beam 21 and the second beam 22 are respectively connected to two ends of the arc-shaped plate 10 in the second direction, and the strength of the arc-shaped plate 10 at two ends of the arc-shaped plate in the second direction can be increased through the first beam 21 and the second beam 22, so that deformation of the arc-shaped plate 10 at two ends of the arc-shaped plate in the second direction when the arc-shaped plate is loaded can be relieved.

In practical situations, the second direction may be the up-down direction of the vehicle body, that is, the first beam 21 and the second beam 22 are respectively connected to the top end and the bottom end of the arc 10, so as to ensure the strength of the top end and the bottom end of the arc 10.

The first hanger beam 31 and the second hanger beam 32 are respectively connected to two ends of the arc plate 10 in the third direction, and the strength of the arc plate 10 at two ends of the arc plate in the third direction can be increased by the first hanger beam 31 and the second hanger beam 32, so that deformation of the arc plate 10 at two ends of the arc plate in the third direction when the arc plate is loaded is relieved.

In practical situations, the third direction may be the left-right direction of the vehicle body, that is, the first hanger beam 31 and the second hanger beam 32 are respectively connected to the left end and the right end of the arc 10, so as to ensure the strength of the left end and the right end of the arc 10.

To achieve connection between the tailgate and the vehicle body and to achieve opening or closing of the tailgate, the first hanger beam 31 may be provided with a first hanger 311, the second hanger beam 32 may be provided with a second hanger 321, and the first hanger 311 and the second hanger 321 extend in directions opposite to the first direction, respectively. Based on this, the tailgate can be mounted to the vehicle body by the first and second lugs 311 and 321, and the tailgate can be rotated with respect to the vehicle body so as to achieve opening or closing of the tailgate. It should be noted here that the vehicle body may be provided with a structure that is in running fit with the first suspension loop 311 and the second suspension loop 321, so that on the one hand, the first suspension loop 311 and the second suspension loop 321 are mounted, and on the other hand, the first suspension loop 311 and the second suspension loop 321 are guaranteed to be rotatable.

In actual practice, the first and second lugs 311 and 321 are located at the left and right ends of the arc plate 10, respectively, and at the inner side of the arc plate 10 toward the vehicle body, so as to rotatably mount the tailgate to the vehicle body.

The first direction, the second direction and the third direction are perpendicular to each other. Alternatively, the first direction may be the thickness direction of the arc plate 10, that is, the front-rear direction of the vehicle body; the second direction may be the up-down direction of the arc plate 10, that is, the up-down direction of the vehicle body; the third direction may be the left-right direction of the arc plate 10, that is, the left-right direction of the vehicle body.

This tail-gate is equipped with increases board 50, through the setting of increasing board 50, can make the height-adjustable of tail-gate, has satisfied height-adjustable's demand, has strengthened adaptability.

Based on the above-mentioned setting, the tail-gate in this application embodiment can improve the bulk strength of tail-gate through adopting the setting of arc 10, makes the tail-gate be difficult for producing when receiving the load and warp to, compare in some mode with the tail-gate that tail-gate mainboard and a plurality of main frame welding formed, the tail-gate in this application embodiment both can guarantee the bulk strength of tail-gate, can need not to set up a plurality of main frames again, also need not to adopt the large tracts of land welding form, thereby can reduce the use of material, reduce the quality of tail-gate, and, can also reduce manufacturing process's complexity. That is, the tail gate saves the conventional frame cross beam and reduces the number of welding seams through the arrangement of the arc-shaped plate 10; meanwhile, the arc-shaped plates with four arc surfaces are in transition fit with the cross beam and the hanging lug beam. Furthermore, the provided tail gate effectively relieves the problems of multiple main frames, heavy weight, long welding lines and unadjustable tail gate, meets the light-weight application requirement of the tail gate, and has stronger adaptability and better flexibility.

In some embodiments, the arcuate plate 10 may be convex in the first direction at both ends in the second direction, respectively. Such an arrangement can improve the strength of the arc 10 at both ends in the second direction to alleviate deformation of the arc 10 at both ends in the second direction when subjected to a load.

Alternatively, the top and bottom ends of the arc plate 10 may be designed in an arc structure, thereby improving the strength at the top and bottom ends of the arc plate 10 to improve the load bearing capacity.

In other embodiments, the arcuate plate 10 may be convex in the first direction at both ends thereof in the third direction, respectively. Such an arrangement can improve the strength of the arc 10 at both ends in the third direction to alleviate deformation of the arc 10 at both ends in the third direction when subjected to a load.

Alternatively, the left and right ends of the arc plate 10 may be designed in an arc structure, thereby improving the strength at the left and right ends of the arc plate 10 to improve the load bearing capacity.

In other embodiments, the arc plate 10 may be protruded in the first direction at both ends in the second direction and both ends in the third direction, respectively. This arrangement can improve the strength of the arc 10 at both ends in the second direction and both ends in the third direction, so as to alleviate deformation of the arc 10 at both ends in the second direction and both ends in the third direction when receiving a load.

In order to further improve the overall strength and stability of the tail gate, the tail gate may further include a first reinforcing plate 41, where the first reinforcing plate 41 is connected to the connection parts of the arc plate 10, the first cross beam 21 and the first hanger beam 31, and the connection parts of the arc plate 10, the first cross beam 21 and the second hanger beam 32, respectively. By adding the first reinforcing plate 41, the strength and stability of the connection part between the arc-shaped plate 10 and the first cross beam 21 and the first hanging ear beam 31 can be improved, and the strength and stability of the connection part between the arc-shaped plate 10 and the first cross beam 21 and the second hanging ear beam 32 can be improved, so that the tail gate is prevented from generating distortion at the two connection parts after being loaded, cracking can be effectively prevented, and the cracking resistance of the tail gate is enhanced.

Alternatively, the first reinforcing plate 41 may be designed as a triangular plate structure, wherein one of right-angle sides of the triangular plate structure may be connected to the first cross beam 21, the other right-angle side may be connected to the first hanger beam 31, and the hypotenuse may be connected to the arc plate 10; alternatively, one of the right-angle sides of the triangular structure may be connected to the first cross member 21, the other right-angle side may be connected to the second hanger beam 32, and the hypotenuse may be connected to the arcuate plate 10. Therefore, based on the characteristic of stability of the triangle, the stability of the connection part of the arc-shaped plate 10 and the first cross beam 21, the first hanging ear beam 31 and the second hanging ear beam 32 can be further improved, and the strength and the stability of the tail gate are further improved.

Of course, the first reinforcing plate 41 may be further connected to the first cross beam 21 and the first hanger beam 31, or connected to the first cross beam 21 and the second hanger beam 32, where the first reinforcing plate 41 is located on one side of the arc plate 10 located on the second plate surface 12, so as to limit and support the arc plate 10, and thus, the arc plate 10 may be relieved from deformation when receiving a load.

In order to further improve the overall strength and stability of the tail gate, the tail gate may further include a second reinforcing plate 42, where the second reinforcing plate 42 is connected to the connection parts of the arc plate 10, the second cross beam 22 and the first hanger beam 31, and the connection parts of the arc plate 10, the second cross beam 22 and the second hanger beam 32, respectively. By additionally arranging the second reinforcing plate 42, the strength and stability of the connection part between the arc-shaped plate 10 and the second cross beam 22 and the first hanging lug beam 31 can be improved, and the strength and stability of the connection part between the arc-shaped plate 10 and the second cross beam 22 and the second hanging lug beam 32 can be improved, so that the tail gate is prevented from generating distortion at the two connection parts after being loaded, cracking can be effectively prevented, and the cracking resistance of the tail gate is enhanced.

Alternatively, the second reinforcing plate 42 may be a bar-shaped plate structure, wherein the bar-shaped plate may be connected to the second cross beam 22 and the first hanger beam 31 or the second hanger beam 32, so as to reinforce the arc plate 10 through the second cross beam 22 and the first hanger beam 31, and the second cross beam 22 and the second hanger beam 32, respectively.

Of course, the second reinforcing plate 42 may also be connected to the second cross beam 22 and the first hanger beam 31, or connected to the second cross beam 22 and the second hanger beam 32, where the second reinforcing plate 42 is located on one side of the arc plate 10 located on the second plate surface 12, so as to limit and support the arc plate 10, and thus, the arc plate 10 can be relieved from deformation when being subjected to load.

In addition, the first reinforcing plate 41 may be fixedly connected to the first cross member 21, the first hanger beam 31, and the second hanger beam 32, for example, welded, riveted, bonded, or the like, and of course, detachable connection, for example, screwing, plugging, clamping, or the like may be adopted.

Likewise, the second reinforcing plate 42 may be fixedly connected to the second cross member 22, the first hanger beam 31 and the second hanger beam 32, such as welding, riveting, bonding, etc., and of course, may also be detachably connected, such as screwing, plugging, clamping, etc.

Therefore, through the arrangement of the first reinforcing plate 41 and the second reinforcing plate 42, the tail gate can be prevented from generating distortion at the connecting positions after being loaded, cracking can be effectively prevented, and the cracking resistance of the tail gate is enhanced.

In order to prevent the material from falling down due to the occurrence of a void between the tailgate and the vehicle body, the tailgate may further include a height-adjustable function, and the tailgate may further include a height-increasing plate 50 connected to the first cross member 21 and located between the first hanger beam 31 and the second hanger beam 32. By providing the height-increasing plate 50, the space among the first cross beam 21, the first hanger beam 31 and the second hanger beam 32 can be blocked to prevent the material from falling from the space. In addition, the height-increasing plate 50 can be connected with the first cross beam 21, the first hanging beam 31 and the second hanging beam 32 respectively, so as to ensure the firmness and stability of the height-increasing plate 50. For example, welding, riveting, plugging, sliding connection, screwing and the like are adopted.

In some embodiments, one of the height-increasing plate 50 and the first beam 21 is provided with a plurality of pins 51, the pins 51 are arranged at intervals along the third direction, the other one is provided with a plurality of slots 211, the slots 211 are arranged at intervals along the third direction, and the pins 51 are in one-to-one plugging fit with the slots 211. By means of the plug-in fit of the plug pins 51 and the slots 211, the heightening plate 50 and the first cross beam 21 can be assembled, blocking of materials is achieved, and the heightening plate 50 is guaranteed to bear loads.

Further, the side wall of the plug 51 may be provided with a first limiting hole 511, the side wall of the slot 211 may be provided with a plurality of second limiting holes 2111, the first limiting hole 511 and one of the second limiting holes 2111 are correspondingly arranged, and the first limiting hole 511 and the corresponding second limiting hole 2111 are internally provided with a limiting piece 60. The plug pin 51 and the slot 211 can be limited by the limiting piece 60 to prevent the plug pin 51 from being pulled out of the slot 211, and the first limiting hole 511 can be opposite to the second different limiting holes 2111, so that the height of the heightening plate 50 relative to the first cross beam 21 can be adjusted, and the applicability of the tail gate can be improved.

Of course, the side wall of the plug 51 may be further provided with a plurality of first limiting holes 511, and the side wall of the slot 211 may be provided with a second limiting hole 2111, in this case, the second limiting hole 2111 may be opposite to a different first limiting hole 511, and the height of the raising plate 50 relative to the first beam 21 may be adjusted, so that the applicability of the tail gate may be improved.

In some embodiments, the arc plate 10 may be an integral structure, so that the overall strength of the arc plate 10 is ensured, and the leakage is not easy.

In other embodiments, the arc-shaped plate 10 includes a plurality of bending plate units 13, and the plurality of bending plate units 13 are sequentially connected to form the arc-shaped plate 10, so that the bending plate units 13 can be conveniently manufactured, and the whole arc-shaped plate 10 is formed in a splicing manner in the later period, so that the arc-shaped plate 10 has higher strength, and almost no gap exists between two adjacent bending plate units 13, so that the leakage can be effectively prevented.

To improve the strength of the arc 10, the arc 10 may further include a support beam 14, where the support beam 14 is connected between the first beam 21 and the second beam 22, that is, two ends of the support beam 14 may be connected to the first beam 21 and the second beam 22, respectively, and the support beam 14 may be vertically disposed, that is, the support beam 14 may be disposed parallel to the first hanger beam 31 and the second hanger beam 32, and the support beam 14 is located at a middle position between the first hanger beam 31 and the second hanger beam 32, or at a middle position of the arc 10. The support beam 14 may be used to support the double-bent plate unit 13.

By adding a support beam 14 in the middle of the arc 10, it can be used to increase the structural strength of the entire tailgate.

In some embodiments, the arc plate 10 is welded to the first beam 21, the second beam 22, the first hanger beam 31 and the second hanger beam 32 respectively, and the fixing manner can ensure the strength, stability and reliability of the connection part, and no leakage occurs.

Of course, besides welded fixation, the welding fixture can also be connected by bolts, so that the strength can be ensured, and the welding fixture can be conveniently disassembled and assembled so as to be convenient for maintenance.

The embodiment of the application also provides a vehicle, which comprises a vehicle body and the tail gate, wherein the tail gate can be connected to the tail part of the vehicle body in an opening and closing way through the first hanging lugs 311 and the second hanging lugs 321, so that the installation of the tail gate is realized, the opening and closing of the tail gate can be realized, and the unloading of materials is convenient.

The vehicle can be a dump truck, a muck truck, a mud head truck, a dump truck, a van-type transport vehicle and the like.

It should be noted that, the specific structure and working principle of the vehicle body may refer to the prior art, and may not be described in detail herein.

Application example

In order to verify the effect of the tail gate provided by the invention, the tail gate shown above is applied to a muck truck as a tail gate (rear gate) of the muck truck, and mechanical properties such as strength of the tail gate are analyzed and verified.

In the embodiment, the static strength analysis is performed on the tail gate according to the loading of the muck scene with 0.25 lateral acceleration and 0.3 longitudinal acceleration. And judging whether the requirement of structural strength is met or not by modeling the tail gate and then carrying out strength analysis. For modeling description, see "Q/SY 072 253-2020" for analysis of the overall static simulation of dump truck.

The intensity calculation of five working conditions is respectively carried out in simulation software, wherein the intensity calculation comprises a dynamic load working condition, a steering working condition, a braking working condition, a opposite lifting working condition and a 30-degree lifting working condition. Specifically, the loading descriptions for each condition are as follows:

dynamic load combined working condition: 2.5g vertical acceleration;

steering combined working condition: vertical acceleration of 1.5 g+lateral acceleration of 0.25 g;

braking combination working condition: 1g vertical acceleration +0.3g longitudinal acceleration;

to lifting the combination operating mode: vertical acceleration of 1 g+axial diagonal 200mm;

0/30 degree lifting combined working condition: vertical acceleration of 1 g.

The results of the calculation of the strength of the tail gate under each condition are shown in table 1 below.

TABLE 1

As can be seen from Table 1, the maximum stress under dynamic load conditions is 275MPa, the maximum stress under steering conditions is 258MPa, the maximum stress under braking conditions is 151MPa, the maximum stress under lifting conditions is 224MPa, and the maximum stress under 30-degree lifting conditions is 162MPa. According to the related experience in the past, the provided tail gate has smaller stress under the working condition of the whole car 5, and meets the strength use requirement.

Under the full working condition, the maximum stress of the provided tail gate is 275Mpa, and the maximum stress does not exceed the allowable stress of the material by 540Mpa, so that the strength design requirement is met.

It can be seen that, the overall strength of the tail gate in the embodiment of the application can be improved to a certain extent, so that the tail gate is not easy to deform when being subjected to load, the requirements of light weight, few welding seams, firmness and reliability can be met, and the tail gate has a height adjusting function, so that a vehicle applying the tail gate can have a good application scene.

The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.

The block diagrams of the devices, apparatuses, devices, systems referred to in the present invention are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.

It is also noted that in the apparatus, devices and methods of the present invention, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention.

Claims (11)

1. A tailgate for mounting to a vehicle body, comprising: the device comprises an arc-shaped plate (10), a first cross beam (21), a second cross beam (22), a first hanging lug beam (31), a second hanging lug beam (32) and a heightening plate (50);

the arc-shaped plate (10) comprises a first plate surface (11) and a second plate surface (12), the first plate surface (11) faces the inner side of the vehicle body, the second plate surface (12) faces the outer side of the vehicle body, at least part of the arc-shaped plate (10) protrudes along a first direction, and the first direction is from the first plate surface (11) to the second plate surface (12);

the first cross beam (21) and the second cross beam (22) are respectively connected to two ends of the arc-shaped plate (10) in the second direction;

the first hanging lug beam (31) and the second hanging lug beam (32) are respectively connected to two ends of the arc-shaped plate (10) in the third direction;

the heightening plate (50) is connected with the first cross beam (21) and is positioned between the first hanging lug beam (31) and the second hanging lug beam (32); wherein,

the first direction, the second direction and the third direction are perpendicular to each other.

2. Tail gate according to claim 1, characterized in that the two ends of the curved plate (10) in the second direction are respectively convex along the first direction;

and/or, the two ends of the arc-shaped plate (10) in the third direction are respectively protruded along the first direction.

3. Tail gate according to claim 1, characterized in that it further comprises a first stiffening plate (41);

the first reinforcing plate (41) is respectively connected to the connection parts of the arc-shaped plate (10), the first cross beam (21) and the first hanging lug beam (31), and the connection parts of the arc-shaped plate (10), the first cross beam (21) and the second hanging lug beam (32).

4. The tailgate of claim 1, further comprising a second reinforcement panel (42);

the second reinforcing plate (42) is respectively connected to the connection parts of the arc-shaped plate (10), the second cross beam (22) and the first hanging lug beam (31), and the connection parts of the arc-shaped plate (10), the second cross beam (22) and the second hanging lug beam (32).

5. The tail gate according to claim 1, wherein one of the height-increasing plate (50) and the first cross beam (21) is provided with a plurality of pins (51), the pins (51) are arranged at intervals along the third direction, the other one is provided with a plurality of slots (211), and the slots (211) are arranged at intervals along the third direction;

the plurality of bolts (51) are in one-to-one corresponding plug-in fit with the plurality of slots (211).

6. The tail gate according to claim 5, characterized in that the side wall of the plug pin (51) is provided with a first limiting hole (511), and the side wall of the slot (211) is provided with a plurality of second limiting holes (2111);

the first limiting holes (511) are arranged corresponding to one of the second limiting holes (2111), and limiting pieces (60) are arranged in the first limiting holes (511) and the corresponding second limiting holes (2111) in a penetrating mode.

7. Tail gate according to claim 1, characterized in that the first hanger beam (31) is provided with a first hanger (311) and the second hanger beam (32) is provided with a second hanger (321), the first hanger (311) and the second hanger (321) each extending in a direction opposite to the first direction.

8. Tail gate according to any of claims 1 to 7, further comprising a support beam (14), the two ends of the support beam (14) being connected to the first and second cross beam (21, 22), respectively.

9. Tail gate according to any of claims 1 to 7, characterized in that said curved plate (10) is of unitary construction;

or, the arc-shaped plate (10) comprises a plurality of bending plate units (13), and the bending plate units (13) are sequentially connected to form the arc-shaped plate (10).

10. Tail gate according to any of claims 1 to 7, characterized in that the arc plate (10) is welded to the first cross beam (21), the second cross beam (22), the first hanger beam (31) and the second hanger beam (32), respectively.

11. A vehicle comprising a vehicle body and the tailgate of any one of claims 1 to 10;

the tail gate is connected to the tail of the car body in an openable and closable manner through the first hanging lug beam (31) and the second hanging lug beam (32).