CN220391164U

CN220391164U - Vehicle door assembly for vehicle and vehicle with same

Info

Publication number: CN220391164U
Application number: CN202322109840.9U
Authority: CN
Inventors: 王超; 徐方; 杨毅
Original assignee: Deep Blue Automotive Technology Co ltd
Current assignee: Deep Blue Automotive Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-01-26
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a door subassembly and have its vehicle for vehicle, the door subassembly includes: the door sheet metal is provided with a mounting surface, and the mounting surface is provided with a first matching part; the connecting bracket is arranged on the door sheet metal, one end of the connecting bracket is provided with a second matching part matched with the first matching part, the connecting bracket is provided with a matching surface, the matching surface is inclined relative to the mounting surface, and the matching surface is provided with a third matching part; the handrail box is arranged on the matching surface, and a fourth matching part is formed on the handrail box and fixedly connected with the third matching part. According to the vehicle door assembly, the connecting bracket is provided with the matching surface inclined relative to the mounting surface, the matching surface is provided with the third matching part, and the third matching part is fixedly connected with the fourth matching part formed on the armrest box, so that the armrest box can be assembled into the door panel metal from different angles, and the convenience of the installation operation of the armrest box and the door panel metal is improved.

Description

Vehicle door assembly for vehicle and vehicle with same

Technical Field

The utility model relates to the field of vehicles, in particular to a vehicle door assembly for a vehicle and the vehicle with the same.

Background

In the related art, an automotive door trim armrest is a key functional component of an automotive interior trim, the interior trim armrest is fixedly connected with a door panel metal plate, along with the increase of the functional components of the automotive interior trim and the change of the modeling, the installation space of the door trim armrest is limited, and when the door trim armrest is assembled into the door panel metal plate from a fixed direction, the door trim armrest is influenced by other parts, so that how to enable the interior trim armrest to be assembled with the door panel metal plate from different angles and directions becomes a technical problem to be solved in the field.

The patent with the publication number of CN216033658U name is a car door armrest box mounting bracket and a mounting structure thereof discloses a car door armrest box mounting bracket and a mounting structure thereof, the car door armrest box mounting bracket is used for crossing a glass lifter mounting via hole, the middle part of the car door armrest box mounting bracket is provided with a car door armrest box mounting hole, the front end part and the rear end part of the car door armrest box mounting bracket are both provided with bracket connecting holes for connecting with a car door inner plate, and the car door armrest box mounting bracket is of a front-back symmetrical structure. This technical scheme provides a door handrail box mounting structure, and this scheme is not applicable to the relatively poor in multiple different motorcycle types commonality, and handrail box mounting structure needs installation space great.

The patent with the publication number of CN218367350U discloses a car door handrail installation device and vehicle, through setting up handrail installing support to T shape structure, the upper and lower both ends of handrail installing support are through being connected with the door panel beating, and the deformation that produces under the same atress condition of handrail installing support third end is less than the amount of deflection that L shape support produced. The handrail installing support in this scheme needs whole installation space great, and the installation direction is restricted.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a door assembly for a vehicle. According to the vehicle door assembly, the connecting bracket is provided with the matching surface inclined relative to the mounting surface, and the matching surface is provided with the third matching part which is fixedly connected with the fourth matching part formed on the armrest box, so that the armrest box can be assembled on the door panel metal plate from different angles, the convenience of the installation operation of the armrest box and the door panel metal plate is improved, and the assembly efficiency of the vehicle door assembly is improved.

The utility model further provides a vehicle with the vehicle door assembly.

A door assembly for a vehicle according to the present utility model includes: the door sheet metal is provided with a mounting surface, and the mounting surface is provided with a first matching part; the connecting support is arranged on the door sheet metal, one end of the connecting support is provided with a second matching part matched with the first matching part, the connecting support is provided with a matching surface, the matching surface is inclined relative to the mounting surface, and the matching surface is provided with a third matching part; the handrail box is arranged on the matching surface, a fourth matching part is formed on the handrail box, and the fourth matching part is fixedly connected with the third matching part.

According to the vehicle door assembly, the second matching part is formed at one end of the connecting support, the first matching part is formed on the door sheet metal, and the first matching part can be connected with the second matching part in a clamping mode, so that the connecting support and the door sheet metal are connected, the other end of the connecting support extends towards the direction away from the door sheet metal, the connecting support is provided with the matching surface inclined relative to the assembling surface, the bottom surface of the armrest box can be in fit connection with the matching surface, the armrest box can be assembled into the door sheet metal from different angles, the convenience of installation operation of the armrest box and the door sheet metal is improved, and the assembling efficiency of the vehicle door assembly is improved.

According to one embodiment of the present utility model, a connection bracket includes: the first connecting part is connected with the door sheet metal, one end of the first connecting part is provided with the second matching part, and the other end of the first connecting part is provided with a first pivoting part; the second connecting part is provided with a second pivoting part at one end, the second pivoting part is pivotally connected with the first pivoting part, and the second connecting part is provided with the matching surface.

According to one embodiment of the present utility model, one of the first pivot portion and the second pivot portion is configured as a limit groove, and the other of the first pivot portion and the second pivot portion is configured as a ball, the ball being rotatably disposed in the limit groove.

According to one embodiment of the utility model, the first connecting portion and at least part of the outer surface of the second connecting portion are formed with a first reinforcement.

According to one embodiment of the utility model, the door assembly further comprises: and at least part of the second reinforcing piece is arranged between the handrail box and the second connecting part.

According to one embodiment of the utility model, the second connection part comprises: a bottom plate; a side plate provided at least a part of the outer peripheral edge of the bottom plate; the top plate is arranged at one end, far away from the bottom plate, of the side plate, and the bottom plate, the side plate and the top plate define a containing cavity which is open towards the metal plate far away from the door plate; wherein the top plate is provided with the matching surface, the third matching part is configured to penetrate through the first matching hole of the top plate in the thickness direction, the reinforcing piece is provided with the second matching hole, and the axes of the first matching hole and the second matching hole are overlapped.

According to one embodiment of the utility model, the first matching part is configured as a limiting notch, the second matching part is configured as a limiting boss, and the limiting boss and at least part of the wall surface of the limiting notch are abutted on the circumferential direction of the first connecting part so as to limit the rotation of the first connecting part relative to the door panel sheet metal.

According to one embodiment of the present utility model, the number of the limiting bosses is two, and the two limiting bosses are arranged at one end of the first connecting portion at intervals.

According to one embodiment of the utility model, the door assembly further comprises: the buffer piece is arranged between one end of the first connecting part and the door sheet metal.

The vehicle according to the present utility model is briefly described below.

According to the vehicle provided with the door assembly in any one of the embodiments, the noise in the passenger compartment of the vehicle is low, the riding comfort of the vehicle is improved, and the riding experience of customers is 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

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of a vehicle door assembly according to one embodiment of the utility model;

FIG. 2 is a front view of a connection bracket according to one embodiment of the present utility model;

fig. 3 is a schematic structural view of a connection bracket according to an embodiment of the present utility model.

Reference numerals:

a door assembly 1;

a door sheet metal 11;

the first connecting part 121, the second connecting part 122, the limiting boss 123 and the ball head 124;

a limit groove 101, a reinforcement groove 102, a first matching hole 103 and a second matching hole 104;

a buffer 13, a second reinforcement 14, and a handrail box 15;

mating face 111, curb plate 112, bottom plate 113.

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 only and are not to be construed as limiting the utility model.

A door assembly for a vehicle according to an embodiment of the present utility model is described below with reference to fig. 1 to 3.

The door assembly 1 for a vehicle according to the present utility model includes: the door plate 11 is provided with a mounting surface, and the mounting surface is provided with a first matching part; the connecting bracket is arranged on the door sheet metal 11, wherein one end of the connecting bracket is provided with a second matching part matched with the first matching part, the connecting bracket is provided with a matching surface 111, the matching surface 111 is inclined relative to the mounting surface, and the matching surface 111 is provided with a third matching part; the armrest box 15 is disposed on the mating surface 111, and a fourth mating portion is formed on the armrest box 15 and is fixedly connected with the third mating portion.

The door assembly 1 comprises door plant panel beating 11, linking bridge and handrail box 15, door plant panel beating 11 sets up in automobile body door department, be formed with the installation face on the one side of door plant panel beating 11 orientation passenger cabin, first cooperation portion sets up on the installation face, the one end of linking bridge is formed with second cooperation portion, first cooperation portion can be connected with second cooperation portion joint, thereby realize linking bridge and door plant panel beating 11's connection, the other end orientation of linking bridge is kept away from door plant panel beating 11 direction and is extended, be formed with the mating surface 111 of relative assembly face slope on the extension of linking bridge, the bottom surface of handrail box 15 can be laminated with mating surface 111 and be connected, make handrail box 15 can be assembled into on the door plant panel beating 11 from different angles, the convenience of handrail box 15 and door plant panel beating 11 installation operation has been promoted, the assembly efficiency of door assembly 1 has been formed with the third cooperation portion on the mating surface 111, be formed with the fourth cooperation portion on the handrail box 15, third cooperation portion and fourth cooperation portion fixed connection has realized handrail box 15 and linking bridge.

According to the vehicle door assembly 1 disclosed by the utility model, the second matching part is formed at one end of the connecting bracket, the first matching part is formed on the door sheet metal 11, and the first matching part can be connected with the second matching part in a clamping way, so that the connection of the connecting bracket and the door sheet metal 11 is realized, the other end of the connecting bracket extends towards the direction away from the door sheet metal 11, the connecting bracket is provided with the matching surface 111 inclined relative to the assembling surface, the bottom surface of the armrest box 15 can be attached to the matching surface 111, the armrest box 15 can be assembled on the door sheet metal 11 from different angles, the convenience of the installation operation of the armrest box 15 and the door sheet metal 11 is improved, and the assembling efficiency of the vehicle door assembly 1 is improved.

According to one embodiment of the present utility model, a connection bracket includes: the first connecting part 121 and the second connecting part 122, the first connecting part 121 is connected with the door panel metal plate 11, one end of the first connecting part 121 is formed with a second matching part, and the other end of the first connecting part 121 is formed with a first pivoting part; one end of the second connecting portion 122 is formed with a second pivoting portion, the second pivoting portion is pivotally connected to the first pivoting portion, and the second connecting portion 122 is formed with a mating surface 111.

In some embodiments, the connecting bracket is formed with a first connecting portion 121 and a second connecting portion 122, one end of the first connecting portion 121 is formed with a second matching portion, the second matching portion can be connected with the first matching portion in a clamping manner, so that connection of the first connecting portion 121 to the door panel 11 is achieved, a first pivoting portion is formed at the other end of the first connecting portion 121, a second pivoting portion is formed at one end of the second connecting portion 122 connected with the first connecting portion 121, a matching surface 111 is formed on the second connecting portion 122, when the connecting bracket is assembled to different vehicle types, due to different design structures on the inner sides of vehicle doors of the different vehicle types, the assembling direction and angle of the armrest box 15 need to be changed, in the application, the position mode of the second connecting portion 122 relative to the first connecting portion 121 is changed, so that the inclination angle of the matching surface 111 relative to the assembling surface and the inclination direction of the matching surface 111 relative to the assembling surface are changed, the assembling direction of the armrest box 15 can be assembled from the proper angle and the different vehicle types, the assembly efficiency of the door panel 11 is improved, and the assembly efficiency of the door panel assembly is improved.

According to one embodiment of the present utility model, one of the first pivoting portion and the second pivoting portion is configured as the limiting groove 101, the other of the first pivoting portion and the second pivoting portion is configured as the ball head 124, and the ball head 124 and the limiting groove 101 are simple in structure, convenient to manufacture, convenient to assemble and easy to operate. In some embodiments, the first pivot portion may be configured as a limiting groove 101, the second pivot portion may be configured as a ball head 124, at least a portion of the ball head 124 may be accommodated in the limiting groove 101, and the ball head 124 may rotate in the limiting groove 101, so that the position of the second connecting portion 122 relative to the first connecting portion 121 is changed, and thus the inclination angle of the mating surface 111 relative to the mating surface and the inclination direction of the mating surface 111 relative to the mating surface are changed.

According to one embodiment of the present utility model, the first reinforcing member is formed on at least a portion of the outer surfaces of the first and second connection parts 121 and 122.

In some embodiments, the first reinforcing member may be configured as a reinforcing groove 102, and a plurality of reinforcing grooves 102 having different shapes are formed on at least part of the outer surfaces of the first and second connection parts 121 and 122, and the reinforcing groove 102 is recessed toward the inside of the first and second connection parts 121 and 122, so that, on one hand, the reinforcing groove 102 may reinforce the structural strength and rigidity of the first and second connection parts 121 and 122, and enhance the bearing capacity of the connection bracket, so that the connection bracket is not broken under the pressure from the armrest box 15, improving the stability and reliability of the armrest box 15 on the connection bracket, and, on the other hand, the reinforcing groove 102 may also reduce the overall mass of the first and second connection parts 121 and 122, so that the first and second connection parts 121 and 122 are more stable and reliable after being assembled, and simultaneously reduce the overall manufacturing cost of the connection bracket.

According to one embodiment of the present utility model, the door assembly 1 further includes: the second reinforcement 14, at least part of the second reinforcement 14 is disposed between the armrest box 15 and the second connecting portion 122.

In some embodiments, the second reinforcement member 14 is further disposed on the door assembly 1, the second reinforcement member 14 is disposed between the armrest box 15 and the second connecting portion 122, and the second reinforcement member 14 may be made of a metal material, on the one hand, since the second connecting portion 122 is generally made of a plastic material, when the second connecting portion 122 is bolted to the armrest box 15, the second connecting portion 122 receives too large torsion force and is easy to collapse, so that the second reinforcement member 14 made of a metal material is disposed between the second connecting portion 122 and the armrest box 15, and on the other hand, the structural strength and rigidity of the connecting portion between the second connecting portion 122 and the armrest box 15 can be improved without increasing the overall mass of the second connecting portion 122, so that the manufacturing cost is reduced, and the stability and reliability of the connection between the second connecting portion 122 and the armrest box 15 are improved, and on the other hand, the bearing capacity of the second reinforcement member 14 made of a metal material is also capable of enhancing the bearing capacity of the second connecting portion 122, so that the first connecting portion 121 and the second connecting portion 122 are more stable and reliable after being assembled.

According to an embodiment of the present utility model, the second connection part 122 includes: a bottom plate 113, side plates 112, and a top plate, the side plates 112 being disposed at least partially around the outer periphery of the bottom plate 113; the top plate is arranged at one end of the side plate 112 far away from the bottom plate 113, and the bottom plate 113, the side plate 112 and the top plate define a containing cavity which is opened towards the metal plate 11 far away from the door plate; wherein the top plate is formed with a fitting surface 111, the third fitting portion is configured as a first fitting hole 103 penetrating the top plate in the thickness direction, and the reinforcing member is formed with a second fitting hole 104, and the first fitting hole 103 coincides with the axis of the second fitting hole 104.

In some embodiments, the second connecting portion 122 is formed by a top plate, a side plate 112 and a bottom plate 113, the side plate 112 is disposed around at least part of the periphery of the bottom plate 113, a top plate is disposed at one end of the side plate 112 away from the bottom plate 113, the side plate 112 and the top plate together define a containing cavity open towards the metal plate 11 away from the door panel, the second reinforcing member 14 is wrapped on the top plate, at least part of the second reinforcing member 14 is contained in the containing cavity, the second reinforcing member 14 is formed on the second matching hole 104 penetrating in the thickness direction, the third matching portion is configured as a first matching hole 103 penetrating in the thickness direction of the top plate, and the second reinforcing member 14 can move a certain distance on the top plate towards the first direction, so that the axes of the first matching hole 103 and the second matching hole 104 coincide, the positioning of the bolts is more accurate, the assembling difficulty of the bolts is reduced, and the assembling efficiency among the connecting bracket, the second reinforcing member 14 and the armrest box 15 is improved.

In addition, a plurality of notches are formed on the surface, which is attached to the mating surface 111, of the second reinforcing surface, protrusions protruding towards the direction of the armrest box 15 are arranged in the notches, and the protrusions can increase the structural strength and rigidity of the second reinforcing member 14, so that the bearing capacity of the connecting bracket is improved.

According to one embodiment of the present utility model, the first mating portion is configured as a limiting notch, the second mating portion is configured as a limiting boss 123, and at least part of a wall surface of the limiting boss 123 and the limiting notch is abutted on the circumferential direction of the first connecting portion 121 to limit the rotation of the first connecting portion 121 relative to the door panel sheet 11.

In some embodiments, a limiting gap opening towards the passenger cabin is formed on the mounting surface, a limiting boss 123 is formed on one end, connected with the door panel metal plate 11, of the first connecting portion 121, the cross section of the limiting boss 123 in the first direction is trapezoidal, the limiting boss 123 is accommodated in the limiting gap, at least part of the outer wall surface of the limiting boss 123 and at least part of the outer wall surface of the limiting gap are abutted in the circumferential direction of the first connecting portion 121, when the first connecting portion 121 and the door panel metal plate 11 are assembled, the outer wall surface of the limiting boss 123 is abutted with the inner wall surface of the limiting gap when the first connecting portion 121 has a tendency of rotating relative to the door panel metal plate 11, so that rotation of the first connecting portion 121 relative to the door panel metal plate 11 is limited, stability and reliability of connection between the first connecting portion 121 and the door panel metal plate 11 are improved, meanwhile, assembly difficulty between the armrest box 15 and the connecting bracket is reduced, and assembly efficiency of the armrest box 15 and the connecting bracket is improved because the first connecting portion 121 is not rotated relative to the door panel metal plate 11. Meanwhile, after the first connecting portion 121 and the door panel metal plate 11 are assembled, when the first connecting portion 121 has a trend of moving along the first direction, the outer wall surface of the limiting boss 123 is abutted against the outer wall surface of the limiting notch, so that the movement of the first connecting portion 121 along the first direction is limited, the connecting bracket is effectively prevented from being separated from the door panel metal plate 11, and the stability and reliability of connection between the connecting bracket and the door panel metal plate 11 are improved.

According to an embodiment of the present utility model, the limit bosses 123 are configured in two, and the two limit bosses 123 are disposed at an end of the first connection part 121 at a spacing.

In some embodiments, the two limiting bosses 123 may be configured to be two, the two limiting bosses 123 are all disposed at one end of the first connecting portion 121 facing the mounting surface, a certain gap exists between the two limiting bosses 123, since the limiting notch can limit the movement of the two limiting bosses 123 facing the first direction after being assembled with the two limiting bosses 123, the sum of the outer diameter lengths of the two limiting bosses 123 is greater than the maximum inner diameter of the limiting notch, the two limiting bosses 123 are disposed at intervals, so that a certain deformation space is formed between the two limiting bosses 123, the two limiting bosses 123 can be deformed respectively facing each other, the two limiting bosses 123 can be assembled into the limiting notch more simply, the assembly difficulty between the limiting bosses 123 and the limiting notch is reduced, and the assembly efficiency of the first connecting portion 121 and the door plate metal plate 11 is improved.

In other specific embodiments, the limiting boss 123 may be configured as one, a larger gap is formed on a side surface of the limiting boss 123 facing the mounting surface, after the limiting notch is assembled with the limiting boss 123, the limiting notch can limit the movement of the limiting boss 123 facing the first direction, the maximum outer diameter of the limiting boss 123 is larger than the maximum inner diameter of the limiting notch, a larger gap is formed in the limiting boss 123, a certain deformation space is formed in the limiting boss 123, in the process of assembling the limiting boss 123 and the limiting notch, the limiting boss 123 can deform facing the gap, so that the maximum outer diameter length of the limiting boss 123 is temporarily reduced, the limiting boss 123 can be more simply assembled into the limiting notch, the assembly difficulty between the limiting boss 123 and the limiting notch is reduced, and the assembly efficiency of the first connecting portion 121 and the door sheet metal 11 is improved.

According to one embodiment of the present utility model, the door assembly 1 further includes: and a buffer 13, wherein the buffer 13 is disposed between one end of the first connection portion 121 and the door panel 11.

In some embodiments, the buffer member 13 is further disposed in the door assembly 1, the buffer member 13 may be sleeved on at least part of the periphery of the limiting boss 123 and is attached to at least part of an end surface of the first connecting portion 121 facing the door panel 11, the buffer member 13 is disposed between the first connecting portion 121 and the door panel 11, on one hand, the buffer member 13 may compensate for dimensional tolerance of a connection portion of the first connecting portion 121 and the door panel 11, stability and reliability of connection of the first connecting portion 121 and the door panel 11 are improved, due to the buffer member 13 disposed between the first connecting portion and the door panel 11, friction between the first connecting portion 121 and the door panel 11 is increased, so that shaking amplitude and time of the first connecting portion 121 relative to the door panel 11 are reduced in a running process of a vehicle, and noise generated by shaking of a connecting bracket is reduced, riding comfort of the vehicle is improved, on the other hand, the buffer member 13 also can space the first connecting portion and the door panel 11, the end surface of the first connecting portion 121 and the door panel 11 are effectively prevented from contacting with the surface of the door panel 11, and the service life of the door panel 11 is prolonged.

In addition, the buffer piece 13 can be made of rubber materials, and the rubber product has good wear resistance and tear resistance and is not easy to damage in the using process, and also has good ageing resistance, so that the buffer piece 13 can keep good performance even if exposed in the external environment for a long time, the stability and reliability of the buffer piece 13 in use are improved, the service life of the buffer piece 13 is prolonged, and the manufacturing cost of the vehicle door assembly 1 is reduced.

The vehicle according to the utility model is provided with the door assembly 1 according to any one of the embodiments, and because the vehicle according to the utility model is provided with the door assembly 1 according to any one of the embodiments, the noise in the passenger compartment of the vehicle according to the application is small, the riding comfort of the vehicle is improved, and the riding experience of customers 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.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

1. A door assembly for a vehicle, comprising:

the door sheet metal is provided with a mounting surface, and the mounting surface is provided with a first matching part;

the connecting support is arranged on the door sheet metal, one end of the connecting support is provided with a second matching part matched with the first matching part, the connecting support is provided with a matching surface, the matching surface is inclined relative to the mounting surface, and the matching surface is provided with a third matching part;

the handrail box is arranged on the matching surface, a fourth matching part is formed on the handrail box, and the fourth matching part is fixedly connected with the third matching part.

2. The door assembly for a vehicle according to claim 1, wherein the connection bracket includes:

the first connecting part is connected with the door sheet metal, one end of the first connecting part is provided with the second matching part, and the other end of the first connecting part is provided with a first pivoting part;

the second connecting part is provided with a second pivoting part at one end, the second pivoting part is pivotally connected with the first pivoting part, and the second connecting part is provided with the matching surface.

3. The door assembly for a vehicle of claim 2, wherein one of the first pivot portion and the second pivot portion is configured as a limit groove, and the other of the first pivot portion and the second pivot portion is configured as a ball head rotatably disposed within the limit groove.

4. The door assembly for a vehicle of claim 2, wherein the first and second connection portions have first reinforcement formed on at least a portion of an outer surface thereof.

5. The door assembly for a vehicle of claim 2, further comprising: and at least part of the second reinforcing piece is arranged between the handrail box and the second connecting part.

6. The door assembly for a vehicle of claim 5, wherein the second connection portion includes:

a bottom plate;

a side plate provided at least a part of the outer peripheral edge of the bottom plate;

the top plate is arranged at one end, far away from the bottom plate, of the side plate, and the bottom plate, the side plate and the top plate define a containing cavity which is open towards the metal plate far away from the door plate; wherein the method comprises the steps of

The top plate is provided with the matching surface, the third matching part is configured to penetrate through the first matching hole of the top plate in the thickness direction, the reinforcing piece is provided with the second matching hole, and the axes of the first matching hole and the second matching hole coincide.

7. The door assembly for a vehicle according to claim 2, wherein the first fitting portion is configured as a limit notch, the second fitting portion is configured as a limit boss, and the limit boss abuts against at least part of a wall surface of the limit notch in a circumferential direction of the first connecting portion to limit rotation of the first connecting portion relative to the door panel sheet.

8. The door assembly for a vehicle according to claim 7, wherein the limit bosses are configured in two, and two of the limit bosses are provided at an end of the first connecting portion at a spacing.

9. The door assembly for a vehicle of claim 4, further comprising: the buffer piece is arranged between one end of the first connecting part and the door sheet metal.

10. A vehicle comprising a door assembly as claimed in any one of claims 1 to 9.