Three-shaft connecting rod hinge and vehicle

Abstract

The utility model relates to a three-shaft connecting rod hinge and a vehicle. A three-axis connecting rod hinge is used for connecting a vehicle door and a vehicle body of a vehicle and comprises a plurality of vehicle body hinges of the same structure, the vehicle body hinges at least comprise the first vehicle body hinge and the second vehicle body hinge, and the X-direction distance and the Y-direction distance between the first vehicle body hinge and the second vehicle body hinge are the maximum distance between the vehicle body hinges. The first vehicle body hinge comprises a first parent connecting rod and a first child connecting rod, the first parent connecting rod is pivoted to the vehicle body through a first vehicle body rotating shaft, the first child connecting rod is pivoted to the first parent connecting rod through a first connecting rotating shaft, the first child connecting rod is rotationally connected with the vehicle door, and the first child connecting rod is arranged on the outer side of the first parent connecting rod; the first vehicle body hinge and the second vehicle body hinge selectively and synchronously move, and the first connecting rotating shaft and the first vehicle body rotating shaft selectively and synchronously rotate; the first connecting rotating shaft and the first vehicle body rotating shaft rotate independently in the same direction to reduce the Y-direction occupied space when the vehicle door is opened relative to the vehicle body.

Description

Technical Field

[0001] The present application relates to the field of vehicle parts, and in particular to a three-axis connecting rod hinge and a vehicle. Background Art

[0002] Vehicle doors are an important part of vehicles. Common door opening and closing types include revolving doors, sliding doors with guide rails, and double-axis connecting rod hinged outward swing doors for buses.

[0003] However, the problem with the prior art is that when passengers get on and off the vehicle, the entire door occupies a large space in the Y direction, or affects the appearance. For example, for a revolving door, the Y-direction opening space is large when it is opened, and the convenience of opening and closing the door is poor; for a sliding door with a guide rail, although the Y-direction space is small when it is opened, a linear guide rail groove needs to be opened on the vehicle exterior, which affects the appearance and the requirement of the linear guide rail makes the vehicle appearance square, which limits the design; for an outward swing door for a passenger car, although the Y-direction opening is small when the door is opened, the X-direction opening is also relatively small, and the convenience of getting on and off the vehicle is poor.

[0004] Therefore, the existing technology is in urgent need of improvement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a three-axis connecting rod hinge and a vehicle, so that when the door is opened, the X-direction space is large while the Y-direction space is as small as possible, so as to facilitate opening and closing the door and getting on and off the vehicle.

[0006] In order to achieve the above-mentioned purpose, the first aspect of the present invention adopts the following technical solutions:

[0007] A three-axis connecting rod hinge system is used to connect a vehicle door and a vehicle body, comprising a plurality of vehicle body hinges of the same structure, wherein the plurality of vehicle body hinges at least comprise a first vehicle body hinge and a second vehicle body hinge, wherein the X-direction and Y-direction distances between the first vehicle body hinge and the second vehicle body hinge are the maximum distances between the plurality of vehicle body hinges, wherein the first vehicle body hinge comprises a first parent connecting rod and a first child connecting rod, wherein the first parent connecting rod is pivotally arranged on the vehicle body via a first vehicle body rotating shaft, the first child connecting rod is pivotally arranged on the first parent connecting rod via a first connecting rotating shaft, and the first child connecting rod is rotationally connected to the vehicle door, wherein

[0008] The first sub-connecting rod is arranged on the outer side of the first parent connecting rod;

[0009] The first body hinge and the second body hinge can selectively move synchronously, and the first connecting shaft and the first body shaft can selectively rotate synchronously;

[0010] The first connecting shaft and the first vehicle body shaft rotate independently and in the same direction, so as to reduce the space occupied in the Y direction when the vehicle door is opened relative to the vehicle body.

[0011] As an embodiment of the present invention, the vehicle door is pivotally mounted on the first sub-connecting rod via a first vehicle door shaft, wherein

[0012] The first door rotating shaft is used to selectively drive the door to rotate relative to the first sub-connecting rod to prevent the door from contacting other obstacles during the door opening and closing process.

[0013] As an embodiment of the present utility model, the first body hinge is arranged in the armrest area of ​​the door trim, the second body hinge is arranged in the cavity of the body door sill, and the interior of the door respectively covers the first body hinge and the second body hinge to improve the aesthetics of the three-axis hinge linkage system.

[0014] As an embodiment of the present utility model, the first connecting shaft and the first body shaft are configured to move synchronously, and the first body hinge and the second body hinge are configured to move synchronously, so as to realize translational opening and closing of the door.

[0015] As an embodiment of the present utility model, the Z-direction distance between the first body hinge and the second body hinge is not less than 350mm, and the X-direction distance is not less than 200mm; and / or, the X-direction opening of the door is not less than 700mm, and the Y-direction opening of the door is between 120mm and 200mm.

[0016] As an implementation manner of the present utility model, the lengths of the first sub-link and the first parent link are both 200-300 mm, so as to meet the opening requirement of the first vehicle body hinge.

[0017] As an embodiment of the utility model, the cross-sectional dimensions of the first sub-link and / or the first parent link are not less than 40 mm in height, not less than 20 mm in width, and at least 2 mm in thickness, so as to meet the stiffness requirements of the first vehicle body hinge.

[0018] As an implementation manner of the present utility model, the first sub-connecting rod and the first parent connecting rod are made of steel.

[0019] As an implementation manner of the present utility model, the hinge plastic deformation of the vehicle body hinge is no more than 2 mm.

[0020] A second aspect of the present application provides a vehicle, comprising the three-axis connecting rod hinge described in the first aspect of the present application.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] By setting up a three-axis link hinge system and at least setting up a first body hinge and a second body hinge with the same structure, the first body hinge is set as a first sub-link and a first parent link, and the first sub-link is set on the outside of the first parent link, and the first sub-link and the first parent link are made to rotate independently in the same direction. By independently rotating outward when the door is opened, it is possible to well achieve the goal of ensuring the X-direction opening while reducing the Y-direction opening during the door opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of a three-axis link hinge system in a vehicle installation position is provided;

[0025] Figure 2 A motion schematic diagram of a three-axis connecting rod hinge system driving a vehicle door to open in translation is provided.

[0026] Description of reference numerals:

[0027] 100, first body hinge; 110, first father link; 120, first child link; 130, first door shaft; 140, first body shaft; 150, first connecting shaft;

[0028] 200, second body hinge; 210, second father connecting rod; 220, second child connecting rod; 230, second door rotating shaft; 240, second body rotating shaft; 250, second connecting rotating shaft;

[0029] 300, body; 400, door. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In this application, in the absence of any contrary description, the terms "X direction", "front" and "rear" will be used with respect to the longitudinal direction of the vehicle body, the forward direction of the car is the front, and the backward direction is the rear; the terms "Y direction", "inside" and "outside" will be used with respect to the transverse direction of the vehicle body, close to the center of the car is the inside, and away from the center of the car is the outside; the terms "Z direction", "upper" and "lower" will be used with respect to the vertical direction of the vehicle body, the upper part of the car is the upper part, and the lower part of the car is the lower part, specifically the drawing direction in the accompanying drawings.

[0031] It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments of the present utility model. In addition, in the following embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in one embodiment, please refer to the relevant description of other embodiments.

[0032] See also Figure 1-2 , the figure shows a three-axis connecting rod hinge, which is used to connect the door 400 and the body 300, and control the movement of the door 400 relative to the body 300. The three-axis connecting rod hinge system includes a first body hinge 100 and a second body hinge 200. The first body hinge 100 is arranged above the second body hinge 200, and the first body hinge 100 and the second body hinge 200 have the same structure. One end of the first body hinge 100 is rotatably connected to the body 300, and the other end is rotatably connected to the door 400. Similarly, one end of the second body hinge 200 is also rotatably connected to the body 300, and the other end is also rotatably connected to the door 400. The first body hinge 100 and the second body hinge 200 jointly drive the translation / sliding opening of the door 400.

[0033] The first vehicle body hinge 100 includes a first parent link 110, a first child link 120, a first vehicle door shaft 130, a first vehicle body shaft 140 and a first connecting shaft 150. The first parent link 110 is pivoted on the vehicle body 300 through the first vehicle body shaft 140, the first child link 120 is pivoted on the vehicle door 400 through the first vehicle door shaft 130, and the first parent link 110 and the first child link 120 are rotatably connected through the first connecting shaft 150. The first vehicle door shaft 130 enables the first child link 120 to rotate relative to the vehicle door 400. Similarly, the first vehicle body shaft 140 enables the first parent link 110 to rotate relative to the vehicle body 300, and the first connecting shaft 150 enables the first parent link 110 and the first child link 120 to move relative to each other. The first sub-connecting rod 120 is disposed outside the first parent connecting rod 110 , that is, the first sub-connecting rod 120 is disposed outside the straight line (Y direction) where the first parent connecting rod 110 is located.

[0034] Similarly, the second body hinge 200 includes a second parent link 210, a second child link 220, a second door shaft 230, a second body shaft 240 and a second connecting shaft 250. The second parent link 210 is pivoted on the body 300 through the second body shaft 240, the second child link 220 is pivoted on the door 400 through the second door shaft 230, and the second parent link 210 and the second child link 220 are rotatably connected through the second connecting shaft 250. The second door shaft 230 enables the second child link 220 to rotate relative to the door 400. Similarly, the second body shaft 240 enables the second parent link 210 to rotate relative to the body 300, and the second connecting shaft 250 enables the second parent link 210 and the second child link 220 to move relative to each other. The second child link 220 is arranged outside the second parent link 210, that is, the second child link 220 is arranged outside the straight line where the second parent link 210 is located.

[0035] At the same time, in order to ensure the support rigidity of the three-axis linkage hinge system for the door 400, and to avoid the occurrence of a dead point in the movement of the first body hinge 100 and the second body hinge 200 during the movement of the door 400 relative to the body 300, the Z-direction distance between the first body hinge 100 and the second body hinge 200 is not less than 350 mm, and the X-direction distance is not less than 200 mm. For the measurement of the Z-direction and X-direction distances of the first body hinge 100 and the second body hinge 200, any point on the first body hinge 100 and the corresponding point on the second body hinge 200 can be selected to complete the measurement. For example, the X-direction and Y-direction distances between the first body shaft 140 and the second body shaft 240 of the vehicle can be selected to determine the distance between the first body hinge 100 and the second body hinge 200. The details will not be repeated here.

[0036] When the door 400 needs to be opened, the first connecting shaft 150 and the first body shaft 140 rotate independently in the same direction, that is, the first body shaft 140 drives the first parent link 110 to rotate outward relative to the body 300, and at the same time, the first connecting shaft 150 drives the first child link 120 to rotate outward relative to the first parent link 110. The first body shaft 140 and the first connecting shaft 150 are independent of each other, and of course, they can also jointly realize the sliding / parallel opening of the door 400, and reduce the occupied space in the Y direction under the condition of the same X-direction opening degree when the door 400 is opened relative to the body 300. It can be understood that for the sliding / parallel opening of the door 400 to be realized by the first body shaft 140 and the first connecting shaft 150, it is only necessary to control the respective rotation angles, which can be realized in many ways in the prior art, and will not be described here.

[0037] Optionally, in a preferred embodiment, the first parent link 110 rotates outward 120°-130°, and the first child link 120 rotates outward 160°-170°; when the second parent link 210 and the second child link 220 make the same movement synchronously with the first parent link 110 and the child link 120, the vehicle door 400 translates without rotation; when the second parent link 210 and the child link 220 make different but the same movements with the first parent link 110 and the child link 120, the vehicle door 400 can achieve a rotation range of 0°-80°.

[0038] At this time, since the first father link 110 and the first child link 120 move relatively independently, the X-direction displacement of the door 400 during the opening process is the superposition of the X-direction displacement of the first father link 110 and the X-direction vector of the first child link 120 relative to the first father link 110, and the Y-direction displacement of the door 400 during the opening process is the reverse superposition of the Y-direction displacement of the first father link 110 and the Y-direction vector of the first child link 120 relative to the first father link 110.

[0039] Similarly, when the door 400 needs to be closed, the first body hinge 100 and the second body hinge 200 perform the same movement synchronously to achieve translation / sliding opening of the door 400. Specifically, taking the first body hinge 100 as an example, the first body shaft 140 drives the first parent link 110 to rotate inward relative to the body 300, and at the same time, the first connecting shaft 150 drives the first child link 120 to rotate inward relative to the first parent link 110. The first body shaft 140 and the first connecting shaft 150 are independent of each other to achieve sliding / parallel closing of the door 400. At this time, since the first parent link 110 and the first child link 120 move relatively independently, the X-axis displacement of the door 400 during the closing process is the superposition of the X-axis displacement of the first parent link 110 and the X-axis vector of the first child link 120 relative to the first parent link 110, and the Y-axis displacement of the door 400 during the closing process is the reverse superposition of the Y-axis displacement of the first parent link 110 and the Y-axis vector of the first child link 120 relative to the first parent link 110.

[0040] It should be noted that the present application does not restrict the movement of the first door shaft 130 during the door opening and closing process, that is, the relative relationship between the door 400 and the first sub-connecting rod 120. The first door shaft 130 may control the first sub-connecting rod 120 and the door 400 to remain relatively still, or the first door shaft 130 may control the door 400 to rotate relative to the first sub-connecting rod 120, thereby ensuring that the door 400 avoids contact with other parts of the vehicle or other obstacles during the opening process, so as to ensure that the door 400 opens to the maximum extent. Figure 2 In the schematic embodiment shown in , during the opening process of the vehicle door 400, the first vehicle door shaft 130 controls the vehicle door 400 to rotate inward relative to the first sub-link 120 when the first parent link 110 and the first sub-link 120 rotate outward, thereby preventing the vehicle door 400 from contacting other obstacles and ensuring that the opening space of the vehicle door 400 is maximized after the vehicle door 400 is opened.

[0041] It should also be noted that, as for the number of hinges of the vehicle body 300 in the three-axis connecting rod hinge system, as long as at least two can be guaranteed, the specific number is not limited in this application. In a specific embodiment, the three-axis connecting rod hinge system is two, namely the first vehicle body hinge 100 and the second vehicle body hinge 200, and the Z-direction distance between the first vehicle body hinge 100 and the second vehicle body hinge 200 is not less than 350 mm, and the X-direction distance is not less than 200 mm. In another alternative embodiment, the three-axis connecting rod hinge system is three, including the first vehicle body hinge 100, the second vehicle body hinge 200 and the third vehicle body 300 hinge, and the third vehicle body 300 hinge is arranged between the first vehicle body hinge 100 and the second vehicle body hinge 200, that is, the X-direction and Y-direction distance between the first vehicle body hinge 100 and the second vehicle body hinge 200 is the maximum distance between multiple vehicle body 300 hinges, and the Z-direction distance between the first vehicle body hinge 100 and the second vehicle body hinge 200 is not less than 350 mm, and the X-direction distance is not less than 200 mm.

[0042] Therefore, by setting up a three-axis link hinge system, by setting up at least a first body hinge 100 and a second body hinge 200 with the same structure, and setting the first body hinge 100 to be the same independent hinge mode of the first parent link 110 and the second child link 220, it is possible to well achieve the smallest possible movement range of the door 400 in the Y direction, thereby reducing the Y-direction occupied space when the door is opened, making it convenient to open and close the door and get on and off the vehicle.

[0043] It can also be understood that when the first body hinge 100 and the second body hinge 200 make the same movement, the door 400 makes a translational movement; when the first body hinge 100 and the second body hinge 200 make different movements, the door 400 can also realize rotational swinging. Combined with electronic control and detection equipment such as radar, intelligent obstacle avoidance can be realized, making it more convenient to open and close the door and get on and off the vehicle, and also having a greater sense of ceremony and luxury, thereby enhancing customer value. The details will not be repeated here.

[0044] It is naturally understood that the first body hinge 100 and the second body hinge 200 can selectively move synchronously, and the first connecting shaft 150 and the first body shaft 140 can selectively rotate synchronously. When the first connecting shaft 150 and the first body shaft 140 move synchronously, and the first body hinge 100 and the second body hinge 200 move synchronously, the door 400 can be opened and closed relative to the body. Synchronous movement / synchronous rotation means that the relative position remains unchanged during the movement. There are many implementation methods in the prior art on how to monitor and maintain the relative position of the two, and the specific details will not be repeated.

[0045] Optionally, in a preferred embodiment, the second body hinge 200 is arranged in the cavity of the door sill of the body 300, the first body hinge 100 is arranged in the height area of ​​the door trim armrest, and the interior is covered on the first body hinge 100 and the second body hinge 200, which can well achieve that after the door 400 is closed, the first body hinge 100 and the second body hinge 200 are folded and integrated into the interior shape or used as an armrest, thereby avoiding the problem that the middle and upper guide rails of traditional sliding doors affect the exterior design. There are many ways in the prior art for the door sill cavity of the body 300 and the door trim armrest, which are not the focus of this solution and will not be repeated here.

[0046] Optionally, in a preferred embodiment, the X-direction opening of the door 400 during opening is not less than 700 mm, and the Y-direction opening is between 120 mm and 200 mm, which can ensure that the Y-direction does not interfere with the vehicle body 300 when the door 400 is fully opened, and can also ensure that the space occupied in the Y-direction is small.

[0047] In a specific embodiment, when the door 400 is opened, the X-direction opening of the first father connecting rod 110 is not less than 300 mm, and the Y-direction opening is not more than 150 mm; the X-direction opening of the first child connecting rod 120 is not less than 400 mm, and the Y-direction opening is not more than 50 mm.

[0048] Optionally, in a preferred embodiment, the length of a single connecting rod of the first sub-connecting rod 120 and the first parent connecting rod 110 is controlled at 200-300 mm, which can not only well meet the opening requirements, but also ensure that the connecting rod will not be too long to cause poor stiffness and strength.

[0049] Optionally, in a preferred embodiment, the cross-sectional dimensions of the first sub-link 120 and the first parent link 110 are not less than 40 mm in height, not less than 20 mm in width, and at least 2 mm in thickness, so as to ensure the rigidity of the hinge.

[0050] Optionally, in a preferred embodiment, the first sub-connecting rod 120 and the first parent connecting rod 110 are made of steel, which can well ensure the strength of the connecting rods.

[0051] It should be noted that the present application does not impose any limitation on the cross-sectional surfaces of the first sub-connecting rod 120 and the first parent connecting rod 110 , and the cross-sectional shapes thereof may be rectangular, elliptical or other special-shaped shapes.

[0052] Optionally, in a preferred embodiment, the hinge plastic deformation of the first body hinge 100 and the second body hinge 200 of the three-axis link hinge system is no more than 2 mm, which can well meet the stability of the opening of the entire vehicle door 400.

[0053] Of course, the present application also provides a vehicle, including the aforementioned three-axis link hinge system for connecting the vehicle door and body, the three-axis link hinge system includes a plurality of body hinges of the same structure, the plurality of body hinges include at least a first body hinge and a second body hinge, the X-direction and Y-direction distances between the first body hinge and the second body hinge are the maximum distances between the plurality of body hinges, the first body hinge includes a first parent link and a first child link, the first parent link is rotationally connected to the body via a first body shaft, the first child link and the first parent link are rotationally connected via a first connecting shaft, the first child link is rotationally connected to the door, wherein

[0054] The first sub-connecting rod is arranged on the outer side of the first parent connecting rod;

[0055] The first connecting shaft and the first vehicle body shaft rotate independently and in the same direction, so as to reduce the space occupied in the Y direction when the vehicle door is opened relative to the vehicle body.

[0056] The above is a detailed introduction to the scheme of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for general technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

[0057] References throughout the specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that the particular features, structures, or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the application embodiments described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0058] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0059] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

Claims

1. A three-axis connecting rod hinge for connecting a door and a body of a vehicle, characterized in that: The invention comprises a plurality of vehicle body hinges of the same structure, wherein the plurality of vehicle body hinges at least comprise a first vehicle body hinge and a second vehicle body hinge, wherein the distances between the first vehicle body hinge and the second vehicle body hinge in the X direction and the Y direction are the maximum distances between the plurality of vehicle body hinges, wherein the first vehicle body hinge comprises a first parent link and a first child link, wherein the first parent link is pivotally arranged on the vehicle body through a first vehicle body rotating shaft, the first child link is pivotally arranged on the first parent link through a first connecting rotating shaft, and the first child link is rotatably connected to the vehicle door, wherein The first sub-connecting rod is arranged on the outer side of the first parent connecting rod; The first body hinge and the second body hinge can selectively move synchronously, and the first connecting shaft and the first body shaft can selectively rotate synchronously; The first connecting shaft and the first vehicle body shaft rotate independently and in the same direction, so as to reduce the space occupied in the Y direction when the vehicle door is opened relative to the vehicle body.

2. The three-axis connecting rod hinge according to claim 1, characterized in that: The vehicle door is pivotally mounted on the first sub-connecting rod via a first vehicle door shaft, wherein The first door rotating shaft is used to selectively drive the door to rotate relative to the first sub-connecting rod to prevent the door from contacting an obstacle during the door opening and closing process.

3. The three-axis connecting rod hinge according to claim 2, characterized in that: The first body hinge is arranged in the armrest area of ​​the door trim, the second body hinge is arranged in the cavity of the body door sill, and the interior of the door respectively covers the first body hinge and the second body hinge to improve the aesthetics of the three-axis connecting rod hinge.

4. The three-axis connecting rod hinge according to any one of claims 1 to 3, characterized in that: The first connecting shaft and the first vehicle body shaft are configured to move synchronously, and the first vehicle body hinge and the second vehicle body hinge are configured to move synchronously, so as to realize translational opening and closing of the vehicle door.

5. The three-axis connecting rod hinge according to any one of claims 1 to 3, characterized in that: The distance between the first body hinge and the second body hinge in the Z direction is not less than 350 mm, and the distance between them in the X direction is not less than 200 mm; and / or the opening of the door in the X direction is not less than 700 mm, and the opening of the door in the Y direction is between 120 mm and 200 mm.

6. The three-axis connecting rod hinge according to claim 5, characterized in that: The lengths of the first sub-link and the first parent link are both 200-300 mm, so as to meet the opening requirement of the first vehicle body hinge.

7. The three-axis connecting rod hinge according to claim 5, characterized in that: The cross-sectional dimensions of the first sub-link and / or the first parent link have a height of not less than 40 mm, a width of not less than 20 mm, and a thickness of at least 2 mm, so as to meet the stiffness requirements of the first vehicle body hinge.

8. The three-axis connecting rod hinge according to any one of claims 1 to 3, characterized in that: The first sub-link and the first parent-link are made of steel.

9. The three-axis connecting rod hinge according to any one of claims 1 to 3, characterized in that: The hinge plastic deformation of the vehicle body hinge is no more than 2 mm.

10. A vehicle, characterized in that: It comprises a three-axis link hinge as described in any one of claims 1 to 9.

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