Multi-link sliding door and vehicle

Abstract

The present invention relates to the field of automotive engineering technology, and discloses a multi-link sliding door and a vehicle, wherein the multi-link sliding door includes: a first hinge, a second hinge, a third hinge, a fourth hinge, a first link, a second link, a driving mechanism, a door frame, and a sliding door; the opposite ends of the first hinge are respectively connected to the door frame and the first link; the opposite ends of the second hinge are respectively connected to the door frame and the second link; the opposite ends of the third hinge are respectively connected to the sliding door and the first link; the opposite ends of the fourth hinge are respectively connected to the sliding door and the second link; the embodiment of the present invention effectively solves the problem of sliding rails affecting the appearance of the vehicle body by making the sliding door perform circular motion around the rotating axis of the first hinge, and the first hinge, second hinge, third hinge, and fourth hinge used in this application can be installed on the front door frame of the vehicle as well as on the rear door frame of the vehicle, so that there are many options for the installation of the vehicle doors.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile engineering, in particular to a multi-link sliding door and a vehicle. Background Art

[0002] A door frame is a frame on a vehicle with an entrance or exit, which is the only way for passengers to enter and exit the vehicle cabin and retrieve and place items. A common door type used to cover the entrance or exit in vans is a sliding door. This requires a guide rail arranged in the middle of the outer side of the vehicle body, and a slider that slides on the guide rail on the sliding door, allowing the sliding door to slide in the front-to-back direction of the vehicle.

[0003] However, arranging guide rails on the outside of the vehicle body affects the appearance of the vehicle body, and since there is no space for installing guide rails on the outside of the door frames corresponding to the driver's seat and the front passenger seat, the above-mentioned sliding doors are only applicable to the rear doors of the vehicle body, and are not applicable to the doors corresponding to the driver's seat and the front passenger seat. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-link vehicle door, which can avoid the need to provide slide rails on the outside of the vehicle body in the past, and effectively solve the problem that the slide rails affect the appearance of the vehicle body.

[0005] To achieve the above objectives, the present invention provides a multi-link sliding door, comprising: a first hinge, a second hinge, a third hinge, a fourth hinge, a first link, a second link, a drive mechanism, a door frame having an entrance and exit, and a sliding door for covering the entrance and exit;

[0006] The opposite ends of the first hinge are connected to the door frame and the first connecting rod respectively; the opposite ends of the second hinge are connected to the door frame and the second connecting rod respectively; the rotating shaft of the first hinge is coaxially arranged with the rotating shaft of the second hinge;

[0007] The opposite ends of the third hinge are connected to the sliding door and the first connecting rod respectively; the opposite ends of the fourth hinge are connected to the sliding door and the second connecting rod respectively; the rotating shaft of the third hinge is coaxially arranged with the rotating shaft of the fourth hinge;

[0008] The driving mechanism can drive the first hinge to deform, thereby driving the first connecting rod to rotate around the rotating axis of the first hinge, so that the sliding door is opened or closed relative to the door frame.

[0009] Optionally, it also includes: a fifth hinge, a sixth hinge, and a third connecting rod; the opposite ends of the fifth hinge are respectively connected to the door frame and the third connecting rod; the opposite ends of the sixth hinge are respectively connected to the sliding door and the third connecting rod; the rotating shaft of the fifth hinge, the rotating shaft of the sixth hinge, and the rotating shaft of the second hinge are arranged parallel to each other; the rotating shaft of the fifth hinge and the rotating shaft of the second hinge are staggered.

[0010] Optionally, the rotating shafts of the first hinge, the second hinge, the third hinge, the fourth hinge, the fifth hinge, and the sixth hinge all extend in a vertical direction.

[0011] Optionally, a connection line between the second hinge rotation axis and the fourth hinge rotation axis is parallel to a connection line between the fifth hinge rotation axis and the sixth hinge rotation axis.

[0012] Optionally, it further includes: a first gear; the first gear is coaxially connected to the rotating shaft of the first hinge; and the first gear is transmission-connected to the driving mechanism.

[0013] Optionally, the driving mechanism includes: a driving motor, a reduction gearbox, and a second gear; the reduction gearbox is respectively connected to the output shaft of the driving motor and the second gear; the first gear is meshed with the second gear.

[0014] Optionally, a locking mechanism is provided on the door frame; a U-shaped buckle is provided on the second connecting rod; when the sliding door is unfolded relative to the door frame, the U-shaped buckle is engaged with the locking mechanism to fix the door frame and the sliding door relatively.

[0015] Optionally, the first hinge is arranged on the right side of the entrance and exit; the fifth hinge is arranged on the lower side of the entrance and exit; and the third hinge is located directly below the first hinge.

[0016] Optionally, the middle portion of the first connecting rod and the middle portion of the second connecting rod are respectively recessed away from the sliding door.

[0017] The present application also provides a vehicle, comprising: a multi-link sliding door as described in any one of the above items.

[0018] Compared with the prior art, the multi-link sliding door and vehicle according to the embodiment of the present invention have the following beneficial effects:

[0019] In the embodiment of the present invention, the sliding door makes circular motion around the rotating axis of the first hinge, that is, the sliding door moves from the expanded state to the closed state or from the closed state to the expanded state relative to the door frame. This can avoid the need to set slide rails on the outside of the vehicle body in the past, and effectively solve the problem of slide rails affecting the appearance of the vehicle body. In addition, the first hinge, second hinge, third hinge, and fourth hinge used in this application can be installed on the front door frame of the vehicle (the doors corresponding to the driver's seat and the co-driver's seat) and the rear door frame of the vehicle (the rear doors of the vehicle body), so that there are many options for the installation of the vehicle doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the inner structure of a door frame according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A is an enlarged schematic diagram;

[0022] Figure 3 This is a schematic diagram of the outer structure of a door frame according to an embodiment of the present invention;

[0023] Figure 4 is a top view of an embodiment of the present invention (the sliding door is closed relative to the door frame);

[0024] Figure 5 This is a schematic diagram of the structure of an embodiment of the present invention (the sliding door is unfolded relative to the door frame)

[0025] Figure 6 Schematic diagram of the positional relationship between the locking mechanism and the U-shaped buckle in an embodiment of the present invention;

[0026] Figure 7 2 is a schematic structural diagram of a locking mechanism in an embodiment of the present invention.

[0027] In the figure, 1. first hinge; 2. second hinge; 3. third hinge; 4. locking mechanism; 41. toggle member; 42. first elastic return member; 43. U-shaped buckle; 44. second mounting seat; 45. first pivot; 46. locking member; 47. second pivot; 48. lock tongue; 481. insertion port; 482. bayonet; 5. first connecting rod; 6. second connecting rod; 7. driving mechanism; 71. driving motor; 72. reduction gearbox; 73. second gear; 8. fifth hinge; 9. sixth hinge; 10. third connecting rod; 11. first gear; 12. fourth hinge; 13. door frame; 14. sliding door; 15. locking block. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0029] First, it should be noted that the directions such as top, bottom, upward, and downward mentioned in this document are defined relative to the directions in the respective drawings. They are relative concepts and can therefore vary depending on the position and usage conditions. Therefore, these or other directions should not be understood as limiting terms.

[0030] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.

[0031] In addition, it should be pointed out that any single technical feature described or implied in the embodiments of this document, or any single technical feature shown or implied in the accompanying drawings, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned in this document.

[0032] It should also be understood that, while the terms "first," "second," and the like are used herein to describe various types of information, such information should not be limited to these terms; these terms are merely used to distinguish information of the same type from one another. For example, "first" information could also be referred to as "second" information, and similarly, "second" information could also be referred to as "first" information without departing from the scope of this application.

[0033] It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

[0034] like Figure 1 、 Figure 3 、 Figure 4 ,as well as Figure 5 As shown, a multi-link sliding door according to a preferred embodiment of the present invention includes: a first hinge 1, a second hinge 2, a third hinge 3, a fourth hinge 12, a first link 5, a second link 6, a drive mechanism 7, a door frame 13 having an entrance and exit, and a sliding door 14 for covering the entrance and exit. It will be understood that the door frame 13 is the portion of the vehicle frame where the door is mounted, and it has an entrance and exit for users to enter and exit.

[0035] The opposite ends of the first hinge 1 are respectively connected to the door frame 13 and the first connecting rod 5. The opposite ends of the second hinge 2 are respectively connected to the door frame 13 and the second connecting rod 6. The rotating axis of the first hinge 1 and the rotating axis of the second hinge 2 are coaxially arranged.

[0036] The opposite ends of the third hinge 3 are respectively connected to the sliding door 14 and the first connecting rod 5. The opposite ends of the fourth hinge 12 are respectively connected to the sliding door 14 and the second connecting rod 6. The rotating axis of the third hinge 3 is coaxial with the rotating axis of the fourth hinge 12.

[0037] The driving mechanism can drive the first hinge 1 to deform, thereby driving the first connecting rod 5 to rotate around the rotating axis of the first hinge 1, so that the sliding door 14 is opened or closed relative to the door frame 13.

[0038] When the sliding door 14 of this embodiment of the present invention is closed relative to the door frame 13, the sliding door 14 covers the outside of the entrance. When the sliding door 14 is extended relative to the door frame 13, the sliding door 14 moves away from the outside of the entrance, allowing users to enter and exit the entrance. In this embodiment of the present invention, the rotating axis of the first hinge 1 and the rotating axis of the second hinge 2 are aligned on the same straight line (hereinafter referred to as the first rotation center). When the driving mechanism drives the rotating axis of the first hinge 1 to rotate, the sliding door 14 performs a circular reciprocating motion about the first rotation center, that is, moving the sliding door 14 from an extended state to a closed state, or vice versa, relative to the door frame 13. The translational expansion and closing method of the sliding door 14 of the embodiment of the present invention can avoid the previous situation where a slide rail needs to be set on the outside of the vehicle body, effectively solving the problem of the slide rail affecting the appearance of the vehicle body, and the first hinge 1, second hinge 2, third hinge 3, and fourth hinge 12 used in this application can be installed on the front door frame 13 of the vehicle (the doors corresponding to the driver's seat and the co-driver's seat), and can also be installed on the rear door frame 13 of the vehicle (the rear door of the vehicle body), so that there are many options for the installation of the vehicle doors.

[0039] In a possible embodiment, the rotating axes of the first hinge 1 and the second hinge 2 are perpendicular to the ground, so that during the process of flipping the sliding door 14 relative to the first rotation center, movement in the front and rear directions of the vehicle body can be achieved without a slide rail. Therefore, the multi-link sliding door of the present application can be applied to the front door frame 13 and the rear door frame 13 of the vehicle, so that the front door of the vehicle no longer has only one way to open the door as a flip door.

[0040] Specifically, see Figure 5 A mounting bracket is also provided on the inner side of the door frame 13, located below the entrance. The second hinge 2 is mounted on the mounting bracket. A through slot is provided on the door frame 13, through which the second connecting rod 6 extends to the outer side of the door frame 13. Simultaneously, the first hinge 1 is also provided on the inner side of the door frame 13, so that the first hinge 1 and the second hinge 2 are not visible whether the sliding door 14 is opened or closed relative to the door frame 13, thereby improving the aesthetics of the vehicle body.

[0041] A possible embodiment is shown in Figure 4 and Figure 5This embodiment of the present invention further includes: a fifth hinge 8, a sixth hinge 9, and a third connecting rod 10. The opposite ends of the fifth hinge 8 are connected to the door frame 13 and the third connecting rod 10, respectively. The opposite ends of the sixth hinge 9 are connected to the sliding door 14 and the third connecting rod 10, respectively. The rotating axes of the fifth hinge, the sixth hinge 9, and the second hinge 2 are arranged parallel to each other, and the rotating axes of the fifth hinge 8 and the second hinge 2 are not collinear. This allows the sliding door 14 to perform circular motion around the first rotation center, while also performing circular motion around the rotating axis of the fifth hinge 8 (hereinafter referred to as the second rotation center). In this embodiment, the connecting line between the sixth hinge 9, the third hinge 3, and the fourth hinge 12 on the sliding door 14 forms a triangle, which enhances the connection stability between the door frame 13 and the sliding door 14 and prevents misalignment between the sliding door 14 and the door frame 13.

[0042] Specifically, the rotating axis of the first hinge 1, the rotating axis of the second hinge 2, the rotating axis of the third hinge 3, the rotating axis of the fourth hinge 12, the rotating axis of the fifth hinge 8, and the rotating axis of the sixth hinge 9 all extend in the vertical direction, that is, the first rotation center and the second rotation center both extend in the vertical direction, so that the sliding door 14 can rotate relative to the vertical rotation axis, so that the sliding door 14 can translate along the front and rear direction of the vehicle.

[0043] Specifically, the connecting line between the rotating axis of the second hinge 2 and the rotating axis of the fourth hinge 12 is parallel to the connecting line between the rotating axis of the fifth hinge 8 and the rotating axis of the sixth hinge 9, so that the connecting lines of the second hinge 2, the fourth hinge 12, the fifth hinge 8, and the sixth hinge 9 form a parallelogram, that is, in the process of the sliding door 14 rotating around the first rotation center through the second connecting rod 6, the sliding door 14 also rotates around the second rotation center through the third connecting rod 10, so that the fifth hinge 8, the sixth hinge 9, and the third connecting rod 10 enhance the connection stability between the door frame 13 and the sliding door 14 without hindering the rotation of the sliding door 14 relative to the first rotation center, thereby preventing the sliding door 14 and the door frame 13 from being misaligned.

[0044] Among them, the first hinge 1, the second hinge 2, the third hinge 3, the fourth hinge 12, and the fifth hinge 8 are all in the form of hinges, with blades that can rotate around the shaft on both sides of the shaft, and one of the blades is fixedly connected to the shaft.

[0045] In one possible embodiment, see Figure 2 This embodiment of the present invention further includes a first gear 11. The first gear 11 is coaxially connected to the rotating shaft of the first hinge 1, so that the first gear 11 can be driven to rotate by the driving mechanism 7, thereby driving the sliding door 14 to perform circular motion relative to the rotating shaft of the first hinge 1. The first gear 11 is in transmission connection with the driving mechanism.

[0046] Preferably, due to the space limitation of the door frame 13, the sliding door 14 will not rotate more than 180 degrees relative to the door frame 13. Therefore, the first gear 11 adopts a fan-shaped gear, which is more compact than ordinary gears to further reduce weight and reduce the installation space of the multi-link sliding door of this application.

[0047] Further, see Figure 2 The driving mechanism 7 includes a driving motor 71, a reduction gearbox 72, and a second gear 73. The reduction gearbox 72 is connected to the output shaft of the driving motor 71 and the second gear 73, respectively. The rotating axes of the first gear 11 and the second gear 73 are parallel. The first gear 11 meshes with the second gear 73, so that the rotation of the driving motor 71 can drive the rotation of the first gear 11.

[0048] It is understood that the reduction gearbox 72 can still be opened or closed manually even after the driving force of the drive motor 71 is lost, allowing the sliding door 14 of the present application to be opened and closed both electrically and manually. Furthermore, the reduction gearbox 72 provides a damping force, allowing the sliding door 14 to hover at any position during the opening process, thereby increasing the versatility of use of the multi-link sliding door of the present application.

[0049] In one possible embodiment, see Figure 5-Figure 7 The door frame 13 is provided with a locking mechanism 4. The second connecting rod 6 is provided with a U-shaped buckle 43. When the sliding door 14 is deployed relative to the door frame, the U-shaped buckle 43 engages with the locking mechanism 4 to fix the door frame and the sliding door 14 relative to each other. Deployment in this context refers to the maximum open state of the sliding door 14 relative to the door frame 13.

[0050] It is understandable that the locking mechanism 4 here adopts the existing locking mechanism 4 on the market. It only needs to be able to lock the U-shaped buckle 43 after the U-shaped buckle 43 is in place, and at the same time be able to electrically disengage the locking mechanism 4 from locking the U-shaped buckle 43.

[0051] In one possible embodiment, see Figure 7 The locking mechanism 4 includes a toggle member 41, a first elastic return member 42, a second elastic return member, a second mounting seat 44 provided on the door frame, a locking member 46 pivotally connected to the second mounting seat 44 via a first pivot 45, and a locking tongue 48 pivotally connected to the second mounting seat 44 via a second pivot 47. The first pivot 45 and the second pivot 47 are arranged in parallel.

[0052] The locking member 46 is provided with a clamping block 15 , and the locking tongue 48 is formed with an insertion port 481 for clamping the clamping block 15 and a clamping port 482 for clamping the U-shaped buckle 43 . The clamping block 15 is adapted to the insertion port 481 .

[0053] The locking tongue 48 can move between a locking position and an unlocking position relative to the second pivot 47. In the locking position, the locking tongue 48 is a position in which the U-shaped buckle 43 and the locking tongue 48 are locked so that they cannot be separated from each other. In the unlocking position, the locking tongue 48 is a position in which the U-shaped buckle 43 and the locking tongue 48 are unlocked so that they can be separated from each other.

[0054] When the locking block 15 is locked in the insertion port 481, the locking member 46 and the locking tongue 48 are relatively fixed to limit the locking member 46 to the locking position, so that the U-shaped buckle 43 and the locking tongue 48 can be locked and cannot be separated from each other.

[0055] When the lock tongue 48 is in the unlocked position, the opening of the bayonet 482 faces the U-shaped buckle 43, so that the U-shaped buckle 43 can be inserted into the bayonet 482. When the lock tongue 48 is in the locked position, the opening of the bayonet 482 faces away from the U-shaped buckle 43, so that the U-shaped buckle 43 and the lock tongue 48 can be locked and cannot be separated from each other.

[0056] The first elastic return member 42 is connected to the locking member 46. When the lock tongue 48 is in the locked position, the first elastic return member 42 is used to apply a first elastic force to the locking member 46 to lock the locking block 15 into the insertion port 481. The toggle member 41 is connected to the locking member 46. The toggle member 41 is used to apply a first thrust to the locking member 46 to disengage the locking block 15 from the insertion port 481. The first thrust of the toggle member 41 is provided by an external electric push rod.

[0057] The second elastic return member is connected to the lock tongue 48 . When the locking block 15 is disengaged from the insertion port 481 , the second elastic return member is used to apply a second elastic force to the lock tongue 48 to move the lock tongue 48 from the locked position to the unlocked position.

[0058] The U-shaped buckle 43 is used to apply a second thrust to the lock tongue 48 when the lock tongue 48 is located at the unlocking position, so as to move the lock tongue 48 from the unlocking position to the locking position.

[0059] In the locked position, the U-shaped buckle 43 is located below the second pivot 47 so that the second pivot 47 can push the lock tongue 48 to rotate clockwise around the second pivot 47 after being inserted into the slot 482 of the lock tongue 48 .

[0060] The first elastic force of the first elastic restoring member 42 is in a clockwise direction, and the second elastic force of the second elastic restoring member is in a counterclockwise direction.

[0061] The working process of the lock tongue 48 and the locking member 46 is described below:

[0062] See also Figure 7 ,by Figure 7 , in the initial state, the opening of the latch 482 of the locking tongue 48 faces away from the U-shaped latch 43, and the locking block 15 is locked in the insertion opening 481. A first thrust is applied to the toggle member 41 by the external push rod to rotate the locking member 46 counterclockwise relative to the first pivot 45. At this time, the locking block 15 disengages from the insertion opening 481, allowing the locking tongue 48 to be released from the restraining position of the locking member 46. Under the action of the second elastic force of the second elastic return member, the lock tongue 48 rotates counterclockwise relative to the second pivot 47 until the opening of the bayonet 482 faces the U-shaped buckle 43, and the U-shaped buckle 43 is inserted into the bayonet 482. Since the U-shaped buckle 43 is located below the second pivot 47, the U-shaped buckle 43 pushes the lock tongue 48 to rotate clockwise around the second pivot 47 to move the lock tongue 48 from the unlocked position to the locked position, and since the insertion port 481 rotates clockwise relative to the second pivot 47 to reinsert the locking block 15 into the insertion port 481, the U-shaped buckle 43 and the lock tongue 48 are now locked. When unlocking is required, it is only necessary to apply a first thrust to the toggle member 41 through the external push rod to make the locking member 46 rotate counterclockwise relative to the first pivot 45.

[0063] Specifically, the first elastic return member 42 and the second elastic return member are both torsion springs, which are respectively mounted on the first pivot 45 and the second pivot 47. Of course, other feasible torsion spring installation methods are also possible and are not limited here.

[0064] Further, see Figure 1 and Figure 5 The first hinge 1 is located on the right side of the entrance, so that the sliding door 14 moves from the rear of the vehicle to the front of the vehicle during deployment and from the front of the vehicle to the rear of the vehicle during closing. The fifth hinge 8 is located below the entrance, and the third hinge 3 is located directly below the first hinge 1. To enhance the connection stability between the door frame 13 and the sliding door 14, the third hinge 3 and the fifth hinge 8 can be hidden below the entrance, thereby improving the overall appearance of the vehicle.

[0065] Furthermore, the first hinge 1 and the second hinge 2 need to be arranged on the inner side of the door frame 13, and the first hinge 1 and the second hinge 2 are respectively arranged on the right side of the entrance and exit, and the middle part of the first link 5 and the second link 6 are respectively recessed toward the sliding door 14, and the recessed parts can avoid the edge of the entrance and exit, that is, the right side edge of the entrance and exit can enter the recessed parts of the first link 5 and the second link 6, so that the sliding door 14 can be opened to a larger angle relative to the door frame 13.

[0066] The present application also provides a vehicle, comprising: a multi-link sliding door as described in any one of the above items.

[0067] The operating process of the present invention is as follows: when the sliding door 14 is closed relative to the door frame 13 and needs to be extended, the rotation of the drive motor 71 drives the rotation of the first gear 11, causing the sliding door 14 to rotate about the first rotation center and extend from the rear to the front of the vehicle. When the sliding door 14 is extended relative to the door frame 13 and needs to be closed, the rotation of the drive motor 71 drives the rotation of the first gear 11, causing the sliding door 14 to rotate about the first rotation center and close from the front to the rear of the vehicle.

[0068] In summary, the embodiments of the present invention provide a multi-link sliding door and a vehicle, which can avoid the need to set slide rails on the outside of the vehicle body in the past through the translational expansion and closing method of the sliding door 14, effectively solving the problem of slide rails affecting the appearance of the vehicle body, and the first hinge 1, second hinge 2, third hinge 3, and fourth hinge 12 used in this application can be installed on the front door frame 13 of the vehicle, and can also be installed on the rear door frame 13 of the vehicle, so that there are many options for the installation of the vehicle doors.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-link sliding door, characterized in that: include: A first hinge, a second hinge, a third hinge, a fourth hinge, a first connecting rod, a second connecting rod, a driving mechanism, a door frame having an entrance and exit, and a sliding door for covering the entrance and exit; The opposite ends of the first hinge are connected to the door frame and the first connecting rod respectively; the opposite ends of the second hinge are connected to the door frame and the second connecting rod respectively; the rotating shaft of the first hinge is coaxially arranged with the rotating shaft of the second hinge; The opposite ends of the third hinge are connected to the sliding door and the first connecting rod respectively; the opposite ends of the fourth hinge are connected to the sliding door and the second connecting rod respectively; the rotating shaft of the third hinge is coaxially arranged with the rotating shaft of the fourth hinge; The driving mechanism is capable of driving the first hinge to deform, thereby driving the first connecting rod to rotate around the rotating axis of the first hinge, so that the sliding door is opened or closed relative to the door frame; The invention also includes: a fifth hinge, a sixth hinge, and a third connecting rod; opposite ends of the fifth hinge are respectively connected to the door frame and the third connecting rod; opposite ends of the sixth hinge are respectively connected to the sliding door and the third connecting rod; the rotating shafts of the fifth hinge, the sixth hinge, and the second hinge are arranged parallel to each other; the rotating shaft of the fifth hinge and the rotating shaft of the second hinge are arranged in an offset manner; A connecting line between the second hinge rotation axis and the fourth hinge rotation axis is parallel to a connecting line between the fifth hinge rotation axis and the sixth hinge rotation axis; It also includes: a first gear; the first gear is coaxially connected to the rotating shaft of the first hinge; and the first gear is transmission-connected to the driving mechanism.

2. The multi-link sliding door according to claim 1, characterized in that: The first hinge, the second hinge, the third hinge, the fourth hinge, the fifth hinge, and the sixth hinge all extend in the vertical direction.

3. The multi-link sliding door according to claim 1, characterized in that: The driving mechanism includes: a driving motor, a reduction gearbox, and a second gear; the reduction gearbox is connected to the output shaft of the driving motor and the second gear respectively; the first gear is meshed with the second gear.

4. The multi-link sliding door according to claim 1, characterized in that: A locking mechanism is provided on the door frame; a U-shaped buckle is provided on the second connecting rod; when the sliding door is unfolded relative to the door frame, the U-shaped buckle is engaged with the locking mechanism to fix the door frame and the sliding door relatively.

5. The multi-link sliding door according to claim 1, characterized in that: The first hinge is arranged on the right side of the entrance and exit; the fifth hinge is arranged on the lower side of the entrance and exit; and the third hinge is located directly below the first hinge.

6. The multi-link sliding door according to claim 1, characterized in that: The middle portion of the first connecting rod and the middle portion of the second connecting rod are respectively recessed away from the sliding door.

7. A vehicle, characterized in that: include: The multi-link sliding door according to any one of claims 1 to 6.

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