CN219565234U - Vehicle body rear frame and vehicle with same - Google Patents

Abstract

The utility model provides a vehicle body rear frame and a vehicle with the same, wherein the vehicle body rear frame comprises: the rear longitudinal beams are arranged in a left-right interval mode; the rear tail beams extend in the left-right direction, two ends of the rear tail beams are respectively connected with the rear ends of the two rear longitudinal beams, and the cross section of the rear tail beams perpendicular to the left-right direction is U-shaped. According to the vehicle body rear part frame, the U-shaped rear tail beam is arranged, so that the structural strength of the rear part of a vehicle can be enhanced, the collision performance is improved, and personnel in the vehicle are protected, so that the riding safety can be improved.

Description

Vehicle body rear frame and vehicle with same

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle body rear frame and a vehicle with the same.

Background

The rear structure of the vehicle body rear frame in the existing scheme generally adopts a structure of a traditional single plate and a back coaming, and the scheme has lower structural strength, is easy to cause injury to passengers when the vehicle is impacted, and is unfavorable for riding safety.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. The utility model is based on the object of providing a rear body frame which can improve the riding safety.

The utility model also provides a vehicle with the vehicle body rear frame.

A vehicle body rear frame according to an embodiment of a first aspect of the utility model includes: the rear longitudinal beams are arranged in a left-right interval mode; the rear tail beams extend leftwards and rightwards, two ends of the rear tail beams are respectively connected with the rear ends of the two rear longitudinal beams, and the cross section of the rear tail beams perpendicular to the left-right direction is U-shaped.

According to the vehicle body rear part frame, the U-shaped rear tail beam is arranged, so that the structural strength of the rear part of a vehicle can be enhanced, the collision performance is improved, and personnel in the vehicle are protected, so that the riding safety can be improved.

According to some embodiments of the utility model, the opening of the U-shaped cross section of the rear tail boom is rearward, and the vehicle body rear frame further comprises: the back coaming, the back coaming extends along left and right directions, the back coaming with the back tail boom links to each other and is located the rear side of back tail boom, the back coaming with the cooperation of back tail boom defines first cavity.

According to some alternative embodiments of the present utility model, the rear tail boom has a first flange connected to an upper side edge of the U-shaped cross-section opening of the rear tail boom and extending upward, and a second flange connected to a lower side edge of the U-shaped cross-section opening of the rear tail boom and extending downward, and the rear tail boom is welded to the back panel by the first flange and the second flange.

According to some embodiments of the utility model, the vehicle body rear frame further comprises: the rear floor underbeam, the rear floor underbeam extends about and locates the front side of rear portion tail boom, the both ends about the rear floor underbeam respectively with two the back longeron links to each other, rear floor underbeam, two the back longeron with the rear portion tail boom encloses out the installation space, the installation space is used for installing the storing box.

According to some alternative embodiments of the present utility model, the rear side member has a U-shaped cross section perpendicular to the front-rear direction, and the vehicle body rear frame further includes: the rear longitudinal beam cover plate at least covers the rear longitudinal beam between the rear floor underbeam and the rear tail beam, and the rear longitudinal beam cover plate and the rear longitudinal beam are matched to define a second cavity.

According to some embodiments of the utility model, the vehicle body rear frame further comprises: the rear floor is positioned at the front side of the rear floor lower cross beam, the rear floor is supported on the two rear longitudinal beams and the rear floor lower cross beam, the cross section of the rear floor lower cross beam perpendicular to the left-right direction is U-shaped, and the rear end of the rear floor is matched with the rear floor lower cross beam to define a third cavity.

According to some embodiments of the utility model, the storage box is riveted with the rear underfloor cross member, the two rear stringers and the rear tail boom.

According to some embodiments of the utility model, the storage box is provided with a connecting flange extending outwards along the horizontal direction, a first connecting hole penetrating through the connecting flange up and down is formed on the connecting flange, a second connecting hole is formed on each of the rear underfloor cross beam, the two rear longitudinal beams and the rear tail beam, and the storage box is connected to the rear underfloor cross beam, the two rear longitudinal beams and the rear tail beam through the first connecting hole and the second connecting hole by rivet nuts.

According to some embodiments of the utility model, the rear longitudinal beam comprises a rear longitudinal beam main body section and a rear longitudinal beam rear section, wherein the rear longitudinal beam rear section is connected to the rear end of the rear longitudinal beam main body section and is in spot welding connection with the rear longitudinal beam main body section, and two ends of the rear tail beam are respectively in spot welding connection with rear end points of the two rear longitudinal beam rear sections.

A vehicle according to an embodiment of a second aspect of the utility model includes the vehicle body rear frame of the first aspect of the utility model.

According to the vehicle of the utility model, the vehicle body rear frame of the first aspect is arranged on the vehicle, and the U-shaped rear tail beam is arranged on the vehicle body rear frame, so that the structural strength of the rear part of the vehicle can be enhanced, the collision performance can be improved, and the personnel in the vehicle can be protected, so that the riding safety can be improved.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

FIG. 1 is an exploded view of a vehicle according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of an angle of the rear body frame shown in FIG. 1;

FIG. 4 is a schematic view of the rear body frame of FIG. 1 at another angle;

FIG. 5 is a schematic view of the rear body frame shown in FIG. 4 without the rear floor;

FIG. 6 is a schematic view of the rear rail body section shown in FIG. 5;

FIG. 7 is a schematic view of the rear section of the rear rail shown in FIG. 5;

FIG. 8 is a schematic view of the aft section of the aft tail boom shown in FIG. 5;

FIG. 9 is a schematic view of the rear underfloor cross member shown in FIG. 5;

FIG. 10 is a schematic view of the rear floor shown in FIG. 5;

FIG. 11 is a schematic view of the rear rail cover shown in FIG. 5;

fig. 12 is a schematic view of the back panel shown in fig. 5.

Reference numerals:

100. a vehicle body rear frame;

10. a rear side member; 11. a rear rail body section; 12. rear section of rear longitudinal beam;

20. a rear tail boom; 21. a first flanging; 22. a second flanging;

30. a back panel;

40. a rear floor lower cross member;

50. a rear rail cover plate;

60. a rear floor;

71. a first connection hole; 72. a second connection hole;

81. a third cross beam; 82. a fourth cross beam;

90. a first cavity;

200. a storage box; 210. connecting and flanging;

300. riveting a nut;

1000. a vehicle.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A vehicle body rear frame 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 12.

Referring to fig. 1, 4 and 5, a vehicle body rear frame 100 according to a first aspect of the utility model includes: a rear side rail 10 and a rear tail rail 20. The number of the rear longitudinal beams 10 is two, and the two rear longitudinal beams 10 are arranged at intervals left and right; the rear tail boom 20 extends laterally and both ends are connected to the rear ends of the two rear side members 10, respectively, and the cross section of the rear tail boom 20 perpendicular to the lateral direction (the lateral direction as shown in fig. 1) is U-shaped.

Alternatively, the U-shaped opening of the rear tail boom 20 may be oriented toward the front of the vehicle 1000, and the U-shaped opening of the rear tail boom 20 may be oriented toward the rear of the vehicle 1000.

The rear body frame 100 of the present utility model can strengthen the structural strength of the rear portion of the vehicle 1000 by providing the U-shaped rear tail boom 20, improve the collision performance, and protect the occupants, thereby improving the riding safety.

According to the vehicle body rear frame 100 of the embodiment of the utility model, the structural strength of the rear part of the vehicle 1000 can be enhanced by providing the U-shaped rear tail boom 20, the collision performance can be improved, and the personnel in the vehicle can be protected, so that the riding safety can be improved.

According to some alternative embodiments of the present utility model, referring to fig. 1 and 5, two rear side members 10 extend in the front-rear direction, the front ends of the rear side members 10 are connected to other members of a rear frame 100 of a vehicle body, the rear ends of the rear side members 10 are connected to a rear tail boom 20 to form a stable force transmission structure, and when a rear impact is applied to a vehicle 1000, an impact force is transmitted from the rear tail boom 20 to the two rear side members 10 and then to other portions of the vehicle body.

Preferably, the rear end of the rear side member 10 is connected to the rear tail member 20 by welding, so that the connection strength can be secured.

According to some embodiments of the present utility model, as shown in fig. 1 and 2, the opening of the U-shaped cross section of the rear tail boom 20 is rearward, and the vehicle body rear frame 100 may further include: the back panel 30, the back panel 30 extends from side to side, and the back panel 30 is connected to the rear tail boom 20 and located at the rear side of the rear tail boom 20, and the back panel 30 and the rear tail boom 20 cooperate to define the first cavity 90. The rear tail boom 20 is conveniently connected with the back panel 30 by making the opening of the U-shaped section of the rear tail boom 20 rearward, forming a first cavity 90; by providing the back panel 30, the strength of the rear portion of the vehicle 1000 can be further enhanced, and the collision performance can be improved. In addition, when the vehicle 1000 is impacted, the back panel 30 and the rear tail boom 20 deform, so that the first cavity 90 deforms, impact energy can be absorbed, impact force is weakened, and personnel in the vehicle can be better protected from impact injury.

According to some alternative embodiments of the present utility model, referring to fig. 1 and 2, the rear tail boom 20 has a first flange 21 and a second flange 22, the first flange 21 is connected to an upper side edge of the U-shaped cross-section opening of the rear tail boom 20 and extends upward, and the second flange 22 is connected to a lower side edge of the U-shaped cross-section opening of the rear tail boom 20 and extends downward, and the rear tail boom 20 is welded to the back panel 30 through the first flange 21 and the second flange 22. Through setting up first turn-ups 21 and second turn-ups 22, can increase the welding area like this, guarantee welding strength, simultaneously, first turn-ups 21 and second turn-ups 22 are in the coplanar with rear portion tail boom 20, convenient operation can guarantee the welding effect. In addition, the rear tail boom 20 and the back coaming 30 are connected in a welding mode, so that the connection strength can be ensured, the process is simple, and the mass production implementation is convenient.

For example, as shown in fig. 2 and 12, the back panel 30 is in a plate shape, and the back panel 30 may cover the first flange 21 and the second flange 22 of the rear tail boom 20 in the up-down direction, so that the back panel 30 and the rear tail boom 20 may conveniently form a closed first cavity 90, and at the same time, the back panel 30 and the rear tail boom 20 form a stressed whole, thereby improving the rear strength of the vehicle 1000. Preferably, the back panel 30 is a sheet metal part, so that the performance of collapsing and absorbing energy of the back panel 30 can be ensured.

According to some embodiments of the present utility model, referring to fig. 1, 4 and 5, the vehicle body rear frame 100 may further include: the rear underfloor cross beam 40, the rear underfloor cross beam 40 extends left and right and is arranged on the front side of the rear tail beam 20, the left and right ends of the rear underfloor cross beam 40 are respectively connected with the two rear longitudinal beams 10, and the rear underfloor cross beam 40, the two rear longitudinal beams 10 and the rear tail beam 20 enclose an installation space for installing the storage box 200. Through setting up rear underfloor cross beam 40, make rear underfloor cross beam 40 and two back longerons 10 and rear tail beam constitute a mouthful style of calligraphy frame construction, can improve the rigidity and the back collision performance at vehicle 1000 rear portion, when vehicle 1000 suffers the striking like this, the impact is passed through rear tail beam along the direction of rear longitudinal beam 10 to rear underfloor cross beam 40, optimizes the impact transmission route, makes each component even atress, the performance of full play component. Meanwhile, the frame formed by the rear floor underbeam 40, the two rear longitudinal beams 10 and the rear tail beam enables the storage box 200 to be fixedly mounted on the frame, and can effectively prevent the storage box 200 from being separated from the vehicle 1000.

Preferably, the rear underfloor cross member 40 is a sheet metal member, so that the strength of the rear underfloor cross member 40 can be ensured, and the rear underfloor cross member 40 and the two rear longitudinal beams 10 are connected by welding, so that the connection strength of the rear underfloor cross member 40 and the two rear longitudinal beams 10 can be ensured.

According to some alternative embodiments of the present utility model, referring to fig. 4 and 5, the rear side member 10 has a U-shaped cross section perpendicular to the front-rear direction, and the vehicle body rear frame 100 further includes: the rear side member cover 50 is at least arranged on the rear side member 10 between the rear floor under-beam 40 and the rear tail beam 20, that is, the rear side member cover 50 may be arranged on the rear side member 10 between the rear floor under-beam 40 and the rear tail beam 20, the rear side member cover 50 may also be arranged on the whole rear side member 10, and the rear side member cover 50 and the rear side member 10 cooperate to define a second cavity. By providing the rear side member 10 of the U-shaped cross section, the formation of the second cavity can be facilitated, and at the same time, the weight of the rear side member 10 can be reduced, so that the weight of the entire vehicle body can be reduced; through setting up back longeron apron 50, back longeron apron 50 lid is established in the U-shaped opening part of back longeron 10, like this, back longeron apron 50 cooperates with back longeron 10 and forms confined second cavity, can strengthen the intensity of back longeron 10, guarantees the stable transmission of impact, simultaneously, can also seal back longeron 10, prevents rainwater or debris entering back longeron 10.

Preferably, the rear longitudinal beam cover plate 50 is a sheet metal part, so that the strength of the rear longitudinal beam cover plate 50 can be ensured, and the rear longitudinal beam cover plate 50 is welded with the rear longitudinal beam 10, so that the connection strength can be ensured.

According to some embodiments of the present utility model, referring to fig. 1, 3 and 4, the vehicle body rear frame 100 may further include: the rear floor 60, the rear floor 60 is located in the front side of the rear underfloor 40, the rear floor 60 is supported on two rear stringers 10 and the rear underfloor 40, the cross section of the rear underfloor 40 perpendicular to the left-right direction is U-shaped, and the rear end of the rear floor 60 cooperates with the rear underfloor 40 to define a third cavity. Through setting up back floor 60, can protect the bottom of vehicle 1000, avoid the vehicle 1000 bottom to suffer the rubble and hit the damage when beating, simultaneously, back floor 60 can the closing cap U-shaped opening part of back floor underbeam 40, prevents rainwater and debris from getting into back floor underbeam 40, and in addition, back floor 60 and back floor underbeam 40 cooperate to form confined overall structure, can improve the intensity of back floor underbeam 40. In addition, the cross section of the rear underfloor cross member 40 is U-shaped, which not only facilitates the formation of the third cavity, but also reduces the weight of the rear underfloor cross member 40.

For example, as shown in fig. 1, the rear side member 10 and the rear side member cover plate 50 cooperate to form a closed cavity, the rear tail member 20 and the rear surrounding plate 30 cooperate to form a closed cavity, and the rear floor underbeam 40 and the rear floor 60 cooperate to form a closed loop, so that the entire rear mouth-shaped frame forms a closed cavity, thereby optimizing the impact force transmission path, improving the rigidity and the rear collision performance of the rear part of the vehicle 1000, and simultaneously enabling the vehicle 1000 to have good NVH (noise, vibration and harshness) performance. Preferably, the rear floor 60 is a sheet metal member, so that the strength of the rear floor 60 can be ensured.

According to some embodiments of the present utility model, referring to fig. 1, 6, 7 and 8, the storage box 200 is riveted with the rear underfloor cross member 40, the two rear side members 10 and the rear tail member 20. Therefore, the connecting process is simple, the manufacturing cost is low, mass production is convenient, meanwhile, the connecting mode is stable, the connecting rigidity is improved, the storage box 200 is firmly connected with the vehicle 1000, the storage box 200 is prevented from jolting, the use durability of the storage box 200 can be improved, in addition, the bracket mounting is not needed, the number of parts is reduced, and welding spots are reduced.

For example, as shown in fig. 1, the connecting portion of the storage box 200 with the rear floor underbeam 40, the two rear side members 10 and the rear tail boom 20 by riveting is further provided with a sealing sponge, so that the interior of the vehicle 1000 can be sealed, and rainwater can be prevented from entering the interior of the vehicle 1000 from the connecting portion.

According to some embodiments of the present utility model, referring to fig. 1, 6, 7 and 8, the storage box 200 has a connection flange 210 extending outwardly in a horizontal direction, and a first connection hole 71 penetrating the connection flange 210 in an up-down direction is formed on the connection flange 210. Through setting up the connection turn-ups 210 on storing box 200, the frame upper portion of the mouth style of calligraphy that is convenient for storing box 200 to install and constitutes at rear floor underbeam 40, two back longerons 10 and rear portion tail boom 20, simultaneously, set up first connecting hole 71 on first turn-ups 21, make things convenient for the processing of first connecting hole 71. Further, the rear underfloor cross member 40, the two rear side members 10 and the rear tail member 20 are formed with second connection holes 72, and the storage box 200 is connected to the rear underfloor cross member 40, the two rear side members 10 and the rear tail member 20 through the first connection holes 71 and the second connection holes 72 by rivet nuts 300. Through the cooperation of the first connecting hole 71 and the second connecting hole 72, after the rivet nut 300 passes through the first connecting hole 71 and the second connecting hole 72, the storage box 200 can be stably fixed on the rear floor underfloor beam 40, the two rear longitudinal beams 10 and the rear tail beam 20, and meanwhile, the fixing method is simple, few in parts, low in cost and convenient for mass production.

For example, as shown in fig. 1, 6, 7 and 8, the storage box 200 has a connection flange 210 extending outwards along four directions, namely, front, rear, left and right, and a plurality of first connection holes 71 are formed in the connection flange 210, and each connection hole corresponds to the second connection hole 72, so that the rivet nut 300 can conveniently pass through the first connection hole 71 and the second connection hole 72. When the rivet nuts 300 pass through the first connection holes 71 and the second connection holes 72, the fixing of the storage box 200 on the rear floor underbeam 40, the two rear side members 10 and the rear tail beam 20 is completed, and the use of fixing parts is greatly reduced.

According to some embodiments of the present utility model, referring to fig. 1, 5, 6 and 7, the rear side member 10 includes a rear side member main body section 11 and a rear side member rear section 12, the rear side member rear section 12 is connected to the rear end of the rear side member main body section 11 and is spot welded to the rear side member main body section 11, and both ends of the rear tail boom 20 are respectively welded to rear end points of the two rear side member rear sections 12. The rear longitudinal beam main body section 11 and the rear longitudinal beam rear section 12 are arranged, so that the rear longitudinal beam 10 is convenient to process and the rear longitudinal beam 10 is convenient to integrally shape; the rear section 12 of the rear longitudinal beam is welded with the main body section 11 of the rear longitudinal beam, so that the connection strength can be ensured, and meanwhile, the connection process is simple, so that the mass production is facilitated; by welding the rear end points of the rear tail boom 20 and the two rear side member rear sections 12, the connection strength of the rear tail boom 20 and the two rear side member rear sections 12 can be ensured, and thus the connection strength of the rear tail boom 20 and the two rear side members 10 can be ensured.

According to some embodiments of the present utility model, referring to fig. 1 and 5, the vehicle body rear frame 100 may further include: and a third cross member 81, the third cross member 81 extending in the left-right direction, both ends of the third cross member 81 being connected to the front ends of the two rear side members 10, respectively, and the front ends of the rear floor 60 being supported on the third cross member 81. Thereby, the strength of the vehicle body rear frame 100 can be enhanced, and at the same time, the third cross member 81 is fitted with the two rear side members 10 and the rear floor under-cross member 40 to constitute a square frame structure, facilitating the installation of the rear floor 60 on the third cross member 81 and the two rear side members 10 and the rear floor under-cross member 40.

Preferably, the third cross member 81 is a sheet metal member, so that the strength of the third cross member 81 can be ensured, and the third cross member 81 is welded to the rear side member 10, so that the connection strength can be ensured.

According to some embodiments of the present utility model, referring to fig. 1 and 5, the vehicle body rear frame 100 may further include: the fourth cross member 82, the fourth cross member 82 extends in the left-right direction, and both ends of the fourth cross member 82 are respectively connected to the two rear side members 10, and the middle portion of the rear floor panel 60 is supported on the fourth cross member 82. Thereby, the strength of the vehicle body rear frame 100 can be further enhanced, and at the same time, the rear floor panel 60 can be better supported, preventing the middle portion of the rear floor panel 60 from being deformed to be depressed downward.

According to a vehicle 1000 of a second aspect of the utility model, referring to fig. 1, a vehicle body rear frame 100 of the first aspect of the embodiment is included.

According to the vehicle 1000 of the embodiment of the utility model, by providing the vehicle body rear frame 100 of the first aspect on the vehicle 1000 and providing the U-shaped rear tail boom 20 on the vehicle body rear frame 100, the strength of the rear portion of the vehicle 1000 can be enhanced, and at the same time, the impact energy can be absorbed when the vehicle 1000 is impacted, the impact force can be weakened, the personnel in the vehicle can be protected, and the riding safety can be improved.

A vehicle 1000 according to an embodiment of the present utility model is described below with reference to fig. 1-12.

As shown in fig. 1, a vehicle 1000 according to an embodiment of the present utility model includes a storage box 200, a rivet nut 300, and a body rear frame 100. Wherein, the storage box 200 has a connection flange 210 extending outwards along a horizontal direction, a first connection hole 71 is provided on the connection flange 210, a second connection hole 72 is provided on the vehicle body rear frame 100, and the storage box 200 is mounted on the vehicle body rear frame 100 through the first connection hole 71 and the second connection hole 72 by a rivet nut 300.

The vehicle body rear frame 100 includes: two rear side rails 10, a rear tail rail 20, a back panel 30, a rear under floor rail 40, a rear side rail cover 50, a rear floor 60, a third rail 81, and a fourth rail 82. Wherein the rear side member 10 includes: the rear side member main body section 11 and the rear side member rear section 12, and the rear side member main body section 11 and the rear side member rear section 12 are welded.

When the vehicle body rear frame 100 is assembled, as shown in fig. 5, the two rear side members 10 extend forward and backward, the two rear side members 10 are arranged at intervals in the left-right direction, the rear side member cover 50 is mounted on the upper portion of the rear side member 10, the rear side member cover 50 closes the rear side member 10 having an upwardly-facing U-shaped cross section, a second cavity is formed, the rear end of the rear side member 10 is welded to the rear tail member 20, the back coaming 30 is welded to the rear side of the rear tail member, the back coaming 30 closes the rear tail member 20 having an upwardly-facing U-shaped cross section, a first cavity 90 is formed, the rear underfloor cross member 40 is arranged on the front side of the rear tail member, the rear underfloor cross member 40 extends left-right, and both ends of the rear side member are welded to the rear side member 10, and thus the mouth-shaped basic frame is formed. The vehicle body rear frame 100 is further provided with a third cross member 81 and a fourth cross member 82 of a reinforcing structure, the third cross member 81 is arranged on the front side of the rear floor lower cross member 40, the third cross member 81 extends left and right and both ends are connected with the front ends of the rear side members 10, the fourth cross member 82 is arranged at the intermediate position of the rear floor lower cross member 40 and the third cross member 81, the fourth cross member 82 extends left and right and both ends are welded with the rear side members 10, the rear floor 60 is mounted on the upper portions of the rear floor lower cross member 40, the two rear side members 10, the third cross member 81 and the fourth cross member 82, and the rear floor 60 closes the rear floor lower cross member 40 with an opening of an upward U-shaped section to form a third cavity. Thus, the two rear side members 10, the rear tail member and the rear floor underbeam 40 constitute a closed cavity, square-shaped force transmission structure, and the vehicle body rear frame 100 is assembled.

When the vehicle 1000 is impacted, the rear tail beam with the U-shaped section deforms to absorb impact energy, and meanwhile, impact force is transmitted along the transmission directions of the rear tail beam, the rear longitudinal beam 10 and the rear floor underbeam 40, so that all components are uniformly stressed, and the mechanical properties of all components are exerted.

According to the vehicle 1000 of the embodiment of the utility model, the vehicle body rear frame 100 is arranged on the vehicle 1000, and the U-shaped rear tail beam 20 is arranged on the vehicle body rear frame 100, so that the strength of the rear part of the vehicle 1000 can be enhanced, and meanwhile, when the vehicle 1000 is impacted, the impact energy can be absorbed, the impact force is weakened, the personnel in the vehicle can be protected, and the riding safety is improved.

In the description of the present utility model, 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A vehicle body rear frame, characterized by comprising:

the rear longitudinal beams are arranged in a left-right interval mode;

the rear tail beams extend leftwards and rightwards, two ends of the rear tail beams are respectively connected with the rear ends of the two rear longitudinal beams, and the cross section of the rear tail beams perpendicular to the left-right direction is U-shaped.

2. The vehicle body rear frame of claim 1, wherein the opening of the U-shaped cross section of the rear tail boom is rearward, the vehicle body rear frame further comprising: the back coaming, the back coaming extends along left and right directions, the back coaming with the back tail boom links to each other and is located the rear side of back tail boom, the back coaming with the cooperation of back tail boom defines first cavity.

3. The vehicle body rear frame according to claim 2, wherein the rear tail boom has a first flange connected to an upper side edge of the U-shaped cross-section opening of the rear tail boom and extending upward, and a second flange connected to a lower side edge of the U-shaped cross-section opening of the rear tail boom and extending downward, and the rear tail boom is welded to the back panel by the first flange and the second flange.

4. A vehicle body rear frame as claimed in any one of claims 1 to 3, further comprising: the rear floor underbeam, the rear floor underbeam extends along left and right directions and locates the front side of rear portion tail boom, the both ends about the rear floor underbeam respectively with two the back longeron links to each other, rear floor underbeam, two the back longeron with rear portion tail boom encloses out the installation space, the installation space is used for installing the storing box.

5. The vehicle body rear frame according to claim 4, characterized in that a cross section of the rear side member perpendicular to the front-rear direction is U-shaped, the vehicle body rear frame further comprising: the rear longitudinal beam cover plate at least covers the rear longitudinal beam between the rear floor underbeam and the rear tail beam, and the rear longitudinal beam cover plate and the rear longitudinal beam are matched to define a second cavity.

6. The vehicle body rear frame according to claim 4, characterized by further comprising: the rear floor is positioned at the front side of the rear floor lower cross beam, the rear floor is supported on the two rear longitudinal beams and the rear floor lower cross beam, the cross section of the rear floor lower cross beam perpendicular to the left-right direction is U-shaped, and the rear end of the rear floor is matched with the rear floor lower cross beam to define a third cavity.

7. The vehicle body rear frame of claim 4, wherein the storage box is riveted with the rear underfloor cross member, the two rear side members, and the rear tail boom.

8. The vehicle body rear frame according to claim 7, wherein the storage box has a connection flange extending outward in a horizontal direction, a first connection hole penetrating up and down through the connection flange is formed on the connection flange, a second connection hole is formed on each of the rear underfloor cross member, the two rear side members, and the rear tail member, and the storage box is connected to the rear underfloor cross member, the two rear side members, and the rear tail member by rivet nuts passing through the first connection hole and the second connection hole.

9. The vehicle body rear frame according to claim 1, wherein the rear side member includes a rear side member main body section and a rear side member rear section, the rear side member rear section is connected to a rear end of the rear side member main body section and is spot-welded to the rear side member main body section, and both ends of the rear tail member are respectively welded to rear end points of both the rear side member rear sections.

10. A vehicle characterized by comprising a vehicle body rear frame according to any one of claims 1-9.