Vehicle door hinge mechanism, vehicle body structure and vehicle

Abstract

The utility model relates to a vehicle door hinge mechanism, a vehicle body structure and a vehicle. The vehicle door hinge mechanism comprises a first swing arm, a first hinge mounting seat, a second hinge mounting seat and a second swing arm, one end of the first swing arm is hinged to the first hinge mounting seat, and the other end of the first swing arm is used for being hinged to a vehicle door; the second hinge mounting seat comprises a fixed seat and a sliding seat, and the sliding seat is in sliding connection with the fixed seat; the second swing arm and the first swing arm are arranged in a spaced mode, one end of the second swing arm is hinged to the sliding base, and the other end of the second swing arm is used for being hinged to a vehicle door. According to the vehicle door hinge mechanism, the vehicle body structure and the vehicle, it can be guaranteed that the rear vehicle door of the vehicle with the swing opening vehicle door can be opened and closed independently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of door hinge, specifically relates to a door hinge mechanism, vehicle body structure and vehicle. BACKGROUND

[0002] At present, the door opening mode of part vehicle is swing opening. However, due to the structure problem of swing opening door, it needs to be opened according to a certain order when the front and rear doors are opened, and cannot be opened independently, otherwise the rear door will interfere with other parts in the process of opening and closing, finally the rear door cannot be opened and closed independently. UTILITY MODEL CONTENTS

[0003] The utility model discloses a door hinge mechanism, vehicle body structure and vehicle can guarantee that the rear door of the vehicle with swing opening door can be opened and closed independently.

[0004] The utility model discloses a door hinge mechanism, including: first swing arm, first hinge mounting seat, second hinge mounting seat and second swing arm, one end of first swing arm is hinged with first hinge mounting seat, and the other end of first swing arm is used for hinging with door, second hinge mounting seat includes fixed seat and sliding seat, and sliding seat is connected with fixed seat slidingly, second swing arm is arranged at intervals with first swing arm, one end of second swing arm is hinged with sliding seat, and the other end of second swing arm is used for hinging with door.

[0005] In an example embodiment, one of the sliding seat and the fixed seat includes a pulley, and the other is provided with a guide groove; the sliding seat and the fixed seat are connected slidingly by cooperation of the pulley and the guide groove.

[0006] In an example embodiment, the fixed seat includes a first limiting side plate, a second limiting side plate and a fixed plate, the first limiting side plate is connected to one side of the fixed plate, the second limiting side plate is connected to the other side of the fixed plate, and the first limiting side plate and the second limiting side plate are oppositely arranged.

[0007] The sliding seat is located between the first limiting side plate and the second limiting side plate.

[0008] In an example embodiment, the guide groove includes a first sub-groove and a second sub-groove, the first sub-groove is located on the surface of the first limiting side plate towards the second limiting side plate, the second sub-groove is located on the surface of the second limiting side plate towards the first limiting side plate, and the pulley includes a first wheel body and a second wheel body, the first wheel body is located in the first sub-groove, and the second wheel body is located in the second sub-groove.

[0009] In an example embodiment, the axis of the first wheel body intersects the axis of the second wheel body.

[0010] In an example embodiment, the first swing arm and the second swing arm are connected to the vehicle door through a hinge connecting piece at one end away from the vehicle body main body, the hinge connecting piece comprises a first connecting side plate, a second connecting side plate, a connecting bottom plate, a first connecting shaft and a second connecting shaft, the first connecting side plate is connected to one side of the connecting bottom plate, the second connecting side plate is connected to the other side of the connecting bottom plate, the first connecting side plate is arranged opposite to the second connecting side plate, the first connecting shaft is connected between the first connecting side plate and the second connecting side plate, the first connecting shaft and the second connecting shaft are arranged in parallel, and the second connecting shaft is connected between the first connecting side plate and the second connecting side plate; the first swing arm is hinged to the first connecting shaft and rotates around the axis of the first connecting shaft; the second swing arm is hinged to the second connecting shaft and rotates around the axis of the second connecting shaft; and the axis of the first connecting shaft is parallel to the axis of the second connecting shaft.

[0011] In an example embodiment, the vehicle door hinge mechanism further comprises a telescopic mechanism, and the telescopic mechanism is in transmission connection with the sliding seat.

[0012] In an example embodiment, the vehicle door hinge mechanism further comprises a driving motor, and the driving motor is in transmission connection with the first swing arm.

[0013] The second aspect of the utility model discloses a vehicle body structure, including vehicle body main body and above-mentioned vehicle door hinge mechanism, vehicle body main body is equipped with the mounting groove, first hinge mounting seat, second hinge mounting seat all are connected in the mounting groove.

[0014] The third aspect of the utility model discloses a vehicle body structure, including vehicle door and above-mentioned vehicle body structure, and the hinge connecting piece is connected to the vehicle door.

[0015] The utility model scheme has the following beneficial effects:

[0016] In the embodiment of the utility model, when the fixing seat of the first hinge mounting seat and the second hinge mounting seat of the vehicle door hinge mechanism is connected with the vehicle body main body of the vehicle, and the first swing arm and the second swing arm are connected with the rear door, since the second swing arm of the vehicle door hinge mechanism is hinged to the sliding seat, and the sliding seat is in sliding connection with the fixing seat, therefore, in the process that the door is opened or closed, by the sliding of the sliding seat relative to the fixing seat, the movement track of the second swing arm can be changed, and then the movement track of the rear door can be changed, finally, the interference between the rear door of the vehicle with swing opening door and other components in the process of opening and closing can be avoided, and then it is ensured that the rear door can be independently opened and closed.

[0017] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. It is readily apparent to one skilled in the art that the following described embodiments are only exemplary and that other embodiments can be realized based on these drawings without paying creative labor. Here, the drawings for representing the utility model concept of the application are not completely identical to the structure of the actual product protected by the application.

[0019] Figure 1 A perspective structural schematic view of the door hinge mechanism in the embodiment of the utility model after being installed on the vehicle body main body is shown.

[0020] Figure 2 Another perspective structural schematic view of the door hinge mechanism in the embodiment of the utility model after being installed on the vehicle body main body is shown.

[0021] Figure 3 A state schematic view of the door hinge mechanism in the embodiment of the utility model when the door is closed is shown.

[0022] Figure 4 An intermediate state schematic view of the door hinge mechanism in the embodiment of the utility model when the door is switched between closing and opening is shown.

[0023] Figure 5 A structural schematic view of the second hinge mounting seat in the embodiment of the utility model is shown.

[0024] Figure 6 A structural schematic view of the fixing seat of the second hinge mounting seat in the embodiment of the utility model is shown.

[0025] Figure 7 A structural schematic view of the sliding seat of the second hinge mounting seat in the embodiment of the utility model is shown.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 11, first swing arm; 12, first hinge mounting seat; 13, hinge connecting piece; 131, first connecting side plate; 132, second connecting side plate; 133, connecting bottom plate; 134, first connecting shaft; 135, second connecting shaft; 14, second hinge mounting seat; 141, fixing seat; 1411, first limiting side plate; 1412, second limiting side plate; 1413, fixing plate; 142, sliding seat; 1421, pulley; 142a, first wheel body; 142b, second wheel body; 1422, connecting part; 15, second swing arm; 101, guide groove; 101a, first sub-groove; 101b, second sub-groove; 16, telescopic mechanism; 17, driving motor; 21, vehicle body main body; 201, mounting groove. DETAILED DESCRIPTION

[0028] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and fully convey the scope of example implementations to those skilled in the art.

[0029] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the claimed subject matter. One skilled in the relevant art will recognize, however, that the implementations can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, methods, or operations have not been shown or described in detail to avoid obscuring aspects of the claimed subject matter.

[0030] The subject matter will be described further with reference to the following figures and specific embodiments. It is to be understood that the embodiments described below are merely examples and that the subject matter is not limited to the embodiments described below. The embodiments described below are intended to explain the principles of the subject matter and to enable others to understand the subject matter.

[0031] As Figures 1 to 7 shown, the present embodiment provides a vehicle door hinge mechanism. The vehicle door hinge mechanism is connected between a vehicle door (specifically, a rear door) and a vehicle body main body 21, and is used for swinging open a rear door of a vehicle of the swing open door type, which can be independently opened and closed.

[0032] In combination Figures 1 to 4As shown, the door hinge mechanism comprises a first swing arm 11, a first hinge mounting seat 12, a hinge connecting piece 13, a second hinge mounting seat 14 and a second swing arm 15. The specific connection and working principle of the first swing arm 11, the first hinge mounting seat 12, the hinge connecting piece 13, the second hinge mounting seat 14 and the second swing arm 15 will be described in detail below:

[0033] In combination Figures 1 to 4 As shown, one end of the first swing arm 11 is hinged to the first hinge mounting seat 12, and the other end of the first swing arm 11 is hinged to the door through the hinge connecting piece 13, wherein the first hinge mounting seat 12 is used for fixedly connecting with the vehicle body 21, and the hinge connecting piece 13 is used for fixedly connecting with the door.

[0034] In combination Figures 5 to 7 As shown, the second hinge mounting seat 14 comprises a fixed seat 141 and a sliding seat 142, and the sliding seat 142 is slidingly connected with the fixed seat 141. Wherein the fixed seat 141 is used for fixedly connecting with the vehicle body 21.

[0035] In combination Figures 1 to 4 As shown, the second swing arm 15 is arranged in a spaced-apart manner with the first swing arm 11, one end of the second swing arm 15 is hinged to the sliding seat 142, and the other end of the second swing arm 15 is hinged to the door through the hinge connecting piece 13.

[0036] In this embodiment, when the first hinge mounting seat 12 and the fixed seat 141 of the second hinge mounting seat 14 of the door hinge mechanism are connected with the vehicle body 21 of the vehicle, and the hinge connecting piece 13 is connected with the rear door, since the second swing arm 15 of the door hinge mechanism is hinged to the sliding seat 142, and the sliding seat 142 is slidingly connected with the fixed seat 141. Therefore, in the process of opening or closing the door, by sliding the sliding seat 142 relative to the fixed seat 141, the movement track of the second swing arm 15 can be changed, and thus the movement track of the rear door can be changed, and finally the interference between the rear door of the vehicle with swing opening door and other components in the process of opening and closing the door can be avoided, and thus it is ensured that the rear door can be independently opened and closed.

[0037] In combination Figures 5 to 7 As shown, one of the sliding seat 142 and the fixed seat 141 comprises a pulley 1421, and the other is provided with a guide groove 101; the sliding seat 142 and the fixed seat 141 are slidingly connected through cooperation of the pulley 1421 and the guide groove 101.

[0038] In this embodiment, the sliding seat 142 comprises the pulley 1421, and the fixed seat 141 is provided with the guide groove 101, wherein the guide groove 101 is a long strip-shaped groove, and the pulley 1421 can slide in the guide groove 101 along the extension direction of the guide groove 101 after being installed in the guide groove 101.

[0039] Of course, in other embodiments, the fixed seat 141 can also include the pulley 1421, and the sliding seat 142 is provided with the guide groove 101. Similarly, the guide groove 101 is a long strip-shaped groove, and the pulley 1421 can slide in the guide groove 101 along the extension direction of the guide groove 101 after being installed in the guide groove 101.

[0040] In combination Figure 6 And Figure 7 As shown in FIG. 1, the fixed seat 141 includes a first limiting side plate 1411, a second limiting side plate 1412, and a fixed plate 1413. The first limiting side plate 1411 is connected to one side of the fixed plate 1413, the second limiting side plate 1412 is connected to the other side of the fixed plate 1413, and the first limiting side plate 1411 is arranged opposite to the second limiting side plate 1412. The sliding seat 142 is located between the first limiting side plate 1411 and the second limiting side plate 1412.

[0041] In this embodiment, after the first limiting side plate 1411, the second limiting side plate 1412, and the fixed plate 1413 are connected, the fixed seat 141 as a whole has a “”-shaped cross section. When the sliding seat 142 is located between the first limiting side plate 1411 and the second limiting side plate 1412, the displacement direction of the sliding seat 142 can be limited by the first limiting side plate 1411 and the second limiting side plate 1412, so as to prevent the sliding seat 142 from being excessively displaced towards the first limiting side plate 1411 or the second limiting side plate 1412.

[0042] In this embodiment, the guide groove 101 includes a first sub-groove 101a and a second sub-groove 101b. The first sub-groove 101a is located on the surface of the first limiting side plate 1411 facing the second limiting side plate 1412. The second sub-groove 101b is located on the surface of the second limiting side plate 1412 facing the first limiting side plate 1411. The pulley 1421 includes a first wheel body 142a and a second wheel body 142b. The first wheel body 142a is located in the first sub-groove 101a, and the second wheel body 142b is located in the second sub-groove 101b.

[0043] It should be understood that when the first sub-groove 101a is located on the surface of the first limiting side plate 1411 facing the second limiting side plate 1412, the second sub-groove 101b is located on the surface of the second limiting side plate 1412 facing the first limiting side plate 1411, the first wheel body 142a is located in the first sub-groove 101a, and the second wheel body 142b is located in the second sub-groove 101b, the sliding seat 142 can be uniformly stressed when sliding relative to the fixed seat 141, thereby making the sliding process of the sliding seat 142 smooth.

[0044] Of course, in other embodiments, the position of the guide groove 101 can also be located at other positions. For example, the guide groove 101 can be located at the fixed plate 1413; or the position of the guide groove 101 can be located only at one of the first limiting side plate 1411 and the second limiting side plate 1412. Wherein, the position of the pulley 1421 corresponds to the position of the guide groove 101, which ensures that the pulley 1421 can slide in the guide groove 101.

[0045] In combination Figures 5 to 7 As shown, the axis of the first wheel body 142a intersects with the axis of the second wheel body 142b, and then one of the first wheel body 142a and the second wheel body 142b can be in contact with the groove bottom surface of the first sub-groove 101a or the second sub-groove 101b (for example, the first sub-groove 101a) and slides along the groove bottom surface, and the other is in contact with the groove side surface of the first sub-groove 101a or the second sub-groove 101b (for example, the second sub-groove 101b) and slides along the groove side surface. In this way, the sliding seat 142 can be limited from multiple angles while sliding relative to the fixed seat 141, avoiding loosening of the sliding seat 142 during sliding.

[0046] In this embodiment, the axis of the first wheel body 142a is perpendicular to the axis of the second wheel body 142b. Wherein, after the door hinge mechanism is installed on the door and the vehicle body main body 21, along the direction of gravity of the sliding seat 142, the height of the first wheel body 142a is lower than that of the second wheel body 142b. At the same time, the first wheel body 142a is in contact with the groove bottom surface of the first sub-groove 101a, and the second wheel body 142b is in contact with the groove side surface of the second sub-groove 101b (both of the two oppositely arranged groove side surfaces are in contact).

[0047] It should be understood that after the door hinge mechanism is installed on the door and the vehicle body main body 21, the function of the first wheel body 142a includes a gravity wheel for bearing, and the function of the second wheel body 142b includes a guide wheel for guiding.

[0048] In combination Figure 3 And Figure 4 As shown, the hinge connector 13 includes a first connecting side plate 131, a second connecting side plate 132, a connecting bottom plate 133, a first connecting shaft 134, and a second connecting shaft 135, the first connecting side plate 131 is connected to one side of the connecting bottom plate 133, the second connecting side plate 132 is connected to the other side of the connecting bottom plate 133, the first connecting side plate 131 is oppositely arranged with the second connecting side plate 132, the first connecting shaft 134 is connected between the first connecting side plate 131 and the second connecting side plate 132, the first connecting shaft 134 and the second connecting shaft 135 are arranged at intervals, and the second connecting shaft 135 is connected between the first connecting side plate 131 and the second connecting side plate 132.

[0049] In the embodiment, the cross section of the hinge connecting piece 13 is in the shape of " ", so as to improve the torsion resistance of the hinge connecting piece 13. The first connecting shaft 134 and the second connecting shaft 135 are arranged along the length direction of the hinge connecting piece 13.

[0050] As shown in the figure, the first swing arm 11 is hinged with the first connecting shaft 134 and rotates around the axis of the first connecting shaft 134; the second swing arm 15 is hinged with the second connecting shaft 135 and rotates around the axis of the second connecting shaft 135; the axis of the first connecting shaft 134 is parallel to the axis of the second connecting shaft 135. Figures 1 to 4 In the embodiment, the first swing arm 11 can swing forward and backward relative to the length direction of the hinge connecting piece 13, and the second swing arm 15 can swing forward and backward along the length direction of the hinge connecting piece 13.

[0051] As shown in the figure, the door hinge mechanism further comprises a telescopic mechanism 16, which is in transmission connection with the sliding seat 142, so as to drive the sliding seat 142 to slide relative to the fixed seat 141, and the sliding distance of the sliding seat 142 relative to the fixed seat 141 can be limited through the telescopic mechanism 16.

[0052] Figures 1 to 4 For example, the seat body of the sliding seat 142 is provided with a connecting part 1422, the telescopic mechanism 16 comprises a telescopic motor and a telescopic shaft connected with the telescopic motor, and the telescopic shaft is fixedly connected with the connecting part 1422.

[0053] As shown in the figure, the door hinge mechanism further comprises a driving motor 17, which is in transmission connection with the first swing arm 11, so as to drive the first swing arm 11 to swing relative to the first hinge mounting seat 12.

[0054] In the embodiment, when the fixed seat 141 of the first hinge mounting seat 12 and the second hinge mounting seat 14 of the door hinge mechanism is connected with the vehicle body 21 of the vehicle, and the hinge connecting piece 13 is connected with the rear door, since the second swing arm 15 of the door hinge mechanism is hinged with the sliding seat 142, and the sliding seat 142 is in sliding connection with the fixed seat 141, in the process of opening or closing the door, the driving motor 17 and the telescopic mechanism 16 can be cooperated to drive the sliding seat 142 to slide relative to the fixed seat 141 while driving the first swing arm 11, so as to change the movement track of the second swing arm 15, realize the change of the movement track of the rear door, and finally avoid the interference between the rear door of the vehicle with swing opening door and other components in the process of opening and closing, so as to ensure that the rear door can be independently opened and closed. Figures 1 to 4 As shown in the figure, the door hinge mechanism further comprises a telescopic mechanism 16, which is in transmission connection with the sliding seat 142, so as to drive the sliding seat 142 to slide relative to the fixed seat 141, and the sliding distance of the sliding seat 142 relative to the fixed seat 141 can be limited through the telescopic mechanism 16.

[0055] In the embodiment, when the fixed seat 141 of the first hinge mounting seat 12 and the second hinge mounting seat 14 of the door hinge mechanism is connected with the vehicle body 21 of the vehicle, and the hinge connecting piece 13 is connected with the rear door, since the second swing arm 15 of the door hinge mechanism is hinged with the sliding seat 142, and the sliding seat 142 is in sliding connection with the fixed seat 141, in the process of opening or closing the door, the driving motor 17 and the telescopic mechanism 16 can be cooperated to drive the sliding seat 142 to slide relative to the fixed seat 141 while driving the first swing arm 11, so as to change the movement track of the second swing arm 15, realize the change of the movement track of the rear door, and finally avoid the interference between the rear door of the vehicle with swing opening door and other components in the process of opening and closing, so as to ensure that the rear door can be independently opened and closed.

[0056] Figures 1 to 2 ​​As shown, the embodiment also provides a vehicle body structure, which comprises a vehicle body main body 21 and the door hinge mechanism in the above embodiment, wherein the vehicle body main body 21 is provided with a mounting groove 201, and the first hinge mounting seat 12 and the second hinge mounting seat 14 are connected in the mounting groove 201.

[0057] In the embodiment, the telescopic mechanism 16 is mounted in the mounting groove 201, and then the telescopic mechanism 16 is hidden in the vehicle body main body 21, so that the passenger's view angle can be avoided, and the aesthetic appearance can be improved.

[0058] In the utility model, when the first hinge mounting seat 12 and the second hinge mounting seat 14 of the door hinge mechanism are connected with the vehicle body main body 21 of the vehicle, and the hinge connecting piece 13 is connected with the rear door, since the second swing arm 15 of the door hinge mechanism is hinged with the sliding seat 142, and the sliding seat 142 is slidingly connected with the fixed seat 141, therefore, in the process that the door is opened or closed, the sliding seat 142 can be slidingly driven relative to the fixed seat 141 by the cooperation of the driving motor 17 and the telescopic mechanism 16, and the movement track of the second swing arm 15 is changed, the movement track of the rear door is changed, and finally the interference between the rear door of the vehicle with the swing opening door and other components in the process that the door is opened and closed can be avoided, and then the rear door can be independently opened and closed. Since the driving motor 17 and the telescopic mechanism 16 are hidden in the vehicle body main body 21, the passenger's view angle can be avoided, and the aesthetic appearance can be effectively improved.

[0059] The embodiment also provides a vehicle, which comprises a door and the vehicle body structure.

[0060] In the embodiment, the door is the rear door of the vehicle.

[0061] Other structures of the vehicle can refer to the prior art, and will not be described here.

[0062] In the utility model, unless otherwise clearly defined and limited, the terms such as 'assembly', 'connection' and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or can be integrated; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0063] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated technical features. Thus, a feature defined with "first", "second" can include one or more of the features implicitly or explicitly. The meaning of "a plurality" is two or more, unless otherwise expressly specified. Also, the description of "some embodiments", "exemplary", etc. means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application.

[0064] The illustrative representations of the above terms are not necessarily directed to the same embodiment or example. Also, the described specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the skilled person can combine and combine the features of different embodiments or examples and different embodiments or examples described in the present specification, without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and specification of the present application shall be within the scope of the present application.

Claims

1. A door hinge mechanism, characterized in that, include: First swing arm, first hinge mounting base, second hinge mounting base and second swing arm; One end of the first swing arm is hinged to the first hinge mounting base, and the other end of the first swing arm is used to hinge to the vehicle door; The second hinge mounting base includes a fixed base and a sliding base, wherein the sliding base is slidably connected to the fixed base; The second swing arm is spaced apart from the first swing arm. One end of the second swing arm is hinged to the sliding seat, and the other end of the second swing arm is used to hinge to the car door.

2. The door hinge mechanism according to claim 1, characterized in that, One of the sliding seat and the fixed seat includes a pulley, and the other is provided with a guide groove; The sliding seat and the fixed seat are slidably connected by the pulley and the guide groove.

3. The door hinge mechanism according to claim 2, characterized in that, The fixing base includes a first limiting side plate, a second limiting side plate, and a fixing plate. The first limiting side plate is connected to one side of the fixing plate, and the second limiting side plate is connected to the other side of the fixing plate. The first limiting side plate and the second limiting side plate are arranged opposite to each other. The sliding seat is located between the first limiting side plate and the second limiting side plate.

4. The door hinge mechanism according to claim 3, characterized in that, The guide groove includes a first sub-groove and a second sub-groove. The first sub-groove is located on the surface of the first limiting side plate facing the second limiting side plate; the second sub-groove is located on the surface of the second limiting side plate facing the first limiting side plate. The pulley includes a first wheel body and a second wheel body, the first wheel body being located in the first sub-groove and the second wheel body being located in the second sub-groove.

5. The door hinge mechanism according to claim 4, characterized in that, The axis of the first wheel intersects the axis of the second wheel.

6. The door hinge mechanism according to claim 2, characterized in that, The ends of the first and second swing arms away from the main body of the vehicle are connected to the door via hinge connectors. The hinge connectors include a first connecting side plate, a second connecting side plate, a connecting bottom plate, a first connecting shaft, and a second connecting shaft. The first connecting side plate is connected to one side of the connecting bottom plate, and the first connecting side plate is connected to the other side of the connecting bottom plate. The first connecting side plate and the second connecting side plate are arranged opposite to each other. The first connecting shaft is connected between the first connecting side plate and the second connecting side plate. The first connecting shaft and the second connecting shaft are spaced apart from each other. The second connecting shaft is connected between the first connecting side plate and the second connecting side plate. The first swing arm is hinged to the first connecting shaft and rotates about the axis of the first connecting shaft; The second swing arm is hinged to the second connecting shaft and rotates about the axis of the second connecting shaft; The axis of the first connecting shaft is parallel to the axis of the second connecting shaft.

7. The door hinge mechanism according to claim 1, characterized in that, The door hinge mechanism also includes a telescopic mechanism, which is connected to the sliding seat in a transmission manner.

8. The door hinge mechanism according to claim 1, characterized in that, The door hinge mechanism also includes a drive motor, which is connected to the first swing arm via a transmission.

9. A vehicle body structure, characterized in that, The vehicle body includes a vehicle body and a door hinge mechanism as described in any one of claims 1-8. The vehicle body is provided with a mounting groove, and the first hinge mounting seat and the second hinge mounting seat are both connected to the mounting groove.

10. A vehicle, characterized in that, Includes a car door and the vehicle body structure as described in claim 9, wherein the hinge connector is connected to the car door.

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