Tail door system and vehicle

Abstract

The invention discloses a tail door system and a vehicle, according to the scheme, the tail door system comprises a tail door, a hinge assembly, glass, a tail door lock assembly, a sealing assembly and a lifting assembly, and the three modes of the tail door system are the glass opening mode, the lateral opening mode and the backward overturning opening mode respectively. When the tail door leans against a wall or is in a narrow space scene, opening of the tail door is limited, at the moment, the glass opening mode can be switched to, and the piece taking requirement of a user is met by lowering the glass. In height-limited places such as an underground garage, the device can be switched to a lateral opening mode or a backward overturning opening mode, and the tail door is opened by laterally opening the tail door or backward overturning the tail door, so that the requirements of a user for entering a trunk and carrying goods are met. Therefore, the tail door system can meet the opening requirements of various tail doors, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a tailgate system and a vehicle. Background Art

[0002] At present, the tailgate has a single opening method, and when opened, it occupies the upper or rear space, which is inconvenient to use in scenes with height restrictions such as basements or where the space behind the tailgate is small. The tailgate glass is fixed and cannot be raised or lowered, which cannot meet the user's needs for simple pickup without opening the tailgate.

[0003] Therefore, how to meet various opening requirements of the tailgate has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The present application proposes a tailgate system and a vehicle to meet various opening requirements of the tailgate.

[0005] In order to achieve the above objectives, this application discloses the following technical solutions:

[0006] In a first aspect, the present application provides a tailgate system, including a tailgate, a hinge assembly, glass, a tailgate lock assembly, a sealing assembly, and a lifting assembly;

[0007] The glass and the lifting assembly are arranged inside the tailgate, and the lifting assembly is connected to the glass transmission to lift the glass;

[0008] The tailgate is arranged at the rear of the vehicle body through a hinge assembly, and the hinge assembly is configured to rotate around a first axial direction and around a second axial direction, and the first axial direction is perpendicular to the second axial direction;

[0009] The tailgate lock assembly can realize the opening or closing of the tailgate;

[0010] The sealing assembly includes a felt groove and a sealing strip. When the tailgate is in a closed state, the felt groove forms a seal with the glass, and the sealing strip forms a seal between the tailgate and the vehicle body.

[0011] The tailgate system includes glass opening mode, side opening mode and rear flip opening mode;

[0012] In glass opening mode, the lifting assembly operates;

[0013] In the lateral opening mode, the hinge assembly rotates around the first axis to rotate the tailgate to the lateral opening position;

[0014] In the rear flip opening mode, the hinge assembly rotates around the second axis to rotate the tailgate to the rear flip opening position.

[0015] In some embodiments, the hinge assembly includes a first position limit hinge, a second position limit hinge, a third position limit hinge and a tailgate lock assembly, wherein the first position limit hinge is arranged at the lower right portion of the tailgate, and the first position limit hinge can rotate around a first axial direction and a second axial direction; the second position limit hinge is arranged at the lower left portion of the tailgate, and the hinge can rotate around the second axial direction; the third position limit hinge is arranged at the upper right portion of the tailgate, and the third position limit hinge can rotate around the first axial direction; the tailgate lock assembly is arranged at the upper left portion of the tailgate, and is constructed to be in a locked state and an unlocked state.

[0016] In some embodiments, the first limit hinge includes a first fixed page, a second fixed page and a movable page, the first fixed page is used to be installed on the vehicle body, the movable page is rotatably set on the first fixed page through a first rotating axis, the second fixed page is rotatably set on the movable page through a second rotating axis, and the second fixed page is set on the tailgate; the first rotating axis is parallel to the first axial axis, and the second rotating axis is parallel to the second axial axis.

[0017] In some embodiments, the first position-limiting hinge further includes a torsion spring and a torsion spring seat, one end of the torsion spring is fixed to the movable leaf, the other end of the torsion spring is fixed to the torsion spring seat, and the torsion spring seat is fixed to the tailgate.

[0018] In some embodiments, the second position-limiting hinge includes a first hinge seat disposed on the vehicle body, an auxiliary leaf disposed on the tailgate, and a first hinge lock;

[0019] The first hinge seat comprises a first hinge rod and a second hinge rod, the first hinge rod and the second hinge rod are arranged side by side; the auxiliary leaf can be hung on the first hinge rod;

[0020] The second hinge rod is hung on the first hinge lock and is constructed to be in a locked state and an unlocked state. In the locked state, the second limit hinge can rotate around the second axial direction; in the unlocked state, the first hinge seat is disengaged from the auxiliary page and the first hinge lock.

[0021] In some embodiments, the third limit hinge includes a second hinge seat arranged on the vehicle body, a second hinge lock and a pull rope arranged on the tailgate. The second hinge seat is hung on the second hinge lock and is constructed to be in a locked state and an unlocked state. In the locked state, the third limit hinge can rotate around the first axis; in the unlocked state, the second hinge seat and the second hinge lock are disengaged; one end of the pull rope is connected to the vehicle body, and the other end of the pull rope is connected to the tailgate.

[0022] In some embodiments, the tailgate lock assembly includes a lock seat and a lock body. In a locked state, the lock seat is drivingly connected to the lock body; in an unlocked state, the lock seat and the lock body are disengaged.

[0023] In some embodiments, the tailgate system further includes a controller, a first button, a second button, and a third button;

[0024] The controller responds to the pressing state of the first button and controls the lifting assembly to drive the glass to rise or lower;

[0025] The controller responds to the pressing state of the second button, and controls the lifting assembly to drive the glass to lower, and switches to the side opening mode;

[0026] The controller responds to the pressing state of the third button, and controls the lifting assembly to drive the glass to be stored into the tailgate, and switches to the rear flip open mode.

[0027] In some embodiments, the tailgate system further includes a first handle and a second handle, wherein the first handle is disposed near the left side of the tailgate, and the second handle is disposed in the middle of the tailgate.

[0028] In some embodiments, the first button and the second button are disposed close to the first handle, and the third button is disposed close to the second handle.

[0029] In a second aspect, the present application provides a vehicle, comprising a vehicle body and a tailgate system as described above.

[0030] It can be seen from the above technical scheme that the above tailgate system of the present application includes three modes, namely glass opening mode, side opening mode and rear flip opening mode. When the tailgate is against a wall or in a small space, the opening of the tailgate is restricted. At this time, it can be switched to the glass opening mode to meet the user's need to pick up items by lowering the glass. When in height-restricted places such as underground garages, it can be switched to the side opening mode or the rear flip opening mode. By opening the tailgate sideways or flipping it back, the user can enter the trunk and move goods. It can be seen that the above tailgate system of the present application can meet a variety of tailgate opening needs and improve the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0032] Figure 1 A schematic diagram of a tailgate system in a closed mode provided in an embodiment of the present application;

[0033] Figure 2 An enlarged view of the first button provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of a lifting window glass opening mode is provided for an embodiment of the present application;

[0035] Figure 4 A schematic diagram of a tailgate system in a lateral opening mode provided by an embodiment of the present application;

[0036] Figure 5 A schematic diagram of a tailgate system provided in an embodiment of the present application in a rear flip-open mode;

[0037] Figure 6 A three-dimensional diagram of a first position-limiting hinge provided in an embodiment of the present application when it is closed;

[0038] Figure 7 A three-dimensional diagram of the first position-limiting hinge provided in an embodiment of the present application when rotating around a first axial direction;

[0039] Figure 8 A three-dimensional diagram of the first position-limiting hinge provided in an embodiment of the present application when rotating around the second axis;

[0040] Fig. 9 A three-dimensional diagram of a first position-limiting hinge provided in an embodiment of the present application when it is installed on a tailgate and a vehicle body and rotated around a first axis;

[0041] Fig.10 A three-dimensional diagram of a first position-limiting hinge provided in an embodiment of the present application when it is installed on a tailgate and a vehicle body and rotated around a second axis;

[0042] Fig.11 A three-dimensional diagram of a first hinge base provided in an embodiment of the present application;

[0043] Fig.12 A three-dimensional diagram of an auxiliary page provided in an embodiment of the present application;

[0044] Fig.13 A three-dimensional diagram of a second position-limiting hinge provided in an embodiment of the present application when it is installed on a tailgate and a vehicle body and rotated around a second axis;

[0045] Fig.14 A three-dimensional diagram of a second hinge base provided in an embodiment of the present application;

[0046] Fig.15 A three-dimensional diagram of a second hinge lock provided in an embodiment of the present application;

[0047] Fig.16 A three-dimensional diagram of the cooperation process between the second hinge seat and the second hinge lock provided in an embodiment of the present application;

[0048] Fig.17 A three-dimensional diagram of a third position-limiting hinge provided in an embodiment of the present application when it is installed on a tailgate and a vehicle body and rotated around a first axis;

[0049] Fig.18A schematic diagram of a sealing assembly provided in an embodiment of the present application;

[0050] In the figure: 10 - tailgate system; 20 - body;

[0051] 1-Tailgate; 2-Hinge assembly; 3-Glass; 4-Tailgate lock assembly; 5-Seal assembly;

[0052] 11-first button; 12-first handle; 13-second handle;

[0053] 21-first limit hinge; 22-second limit hinge; 23-third limit hinge;

[0054] 211-first fixed page; 212-second fixed page; 213-movable page; 214-torsion spring; 215-torsion spring seat;

[0055] 221-first hinge seat; 222-auxiliary page; 223-first hinge lock; 2211-first hinge rod; 2212-second hinge rod;

[0056] 231 - second hinge seat; 232 - second hinge lock; 233 - pull rope;

[0057] 41-lock seat; 42-lock body;

[0058] 51-groove; 52-sealing strip. DETAILED DESCRIPTION

[0059] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are only used to explain the related application, rather than to limit the application. The described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0060] The tailgate of a car is the main channel for users to carry luggage. It is usually opened by lifting or opening sideways, and the opening method is single, which cannot meet the needs of users in multiple scenarios.

[0061] See also Figures 1 to 16 In order to achieve the above objectives, this application discloses the following technical solutions:

[0062] A tailgate system 10 includes a tailgate 1, a hinge assembly 2, a glass 3, a tailgate lock assembly 4, a sealing assembly 5 and a lifting assembly (not shown); the glass 3 and the lifting assembly are arranged inside the tailgate 1, and the lifting assembly is connected to the glass 3 in a transmission manner to lift the glass 3; the tailgate 1 is arranged at the rear of the vehicle body 20 through the hinge assembly 2, and the hinge assembly 2 is configured to rotate around a first axial direction and around a second axial direction, and the first axial direction is perpendicular to the second axial direction; the tailgate lock assembly 4 can realize the opening or closing of the tailgate 1; the sealing assembly 5 includes a groove 51 and a sealing strip 52, when the tailgate 1 is in a closed state, the groove 51 forms a seal with the glass 3, and the sealing strip 52 forms a seal between the tailgate 1 and the vehicle body; the tailgate system 10 includes a glass opening mode, a side opening mode and a rear flip opening mode; in the glass opening mode, the lifting assembly operates; in the side opening mode, the hinge assembly 2 rotates around the first axial direction to rotate the tailgate 1 to the side opening position; in the rear flip opening mode, the hinge assembly 2 rotates around the second axial direction to rotate the tailgate 1 to the rear flip opening position.

[0063] The above-mentioned tailgate system 10 of the present application includes three modes, namely glass opening mode, side opening mode and rear flip opening mode. When the tailgate 1 is against a wall or in a small space, the opening of the tailgate 1 is restricted. At this time, it can be switched to the glass opening mode, and the user's need to pick up items can be met by lowering the glass 3. When in a height-restricted place such as an underground garage, it can be switched to the side opening mode or the rear flip opening mode, and the user's need to enter the trunk and carry goods can be met by opening the tailgate 1 sideways or by flipping the tailgate 1 from behind. It can be seen that the above-mentioned tailgate system 10 of the present application can meet various opening requirements of the tailgate 1 and improve the user's experience.

[0064] The function of the hinge assembly 2 is to realize the connection between the tailgate 1 and the rear of the vehicle body 20. Specifically, the hinge assembly 2 includes a first limit hinge 21, a second limit hinge 22, a third limit hinge 23 and a tailgate lock assembly 4. The first limit hinge 21 is arranged at the lower right part of the tailgate 1; the second limit hinge 22 is arranged at the lower left part of the tailgate 1, the third limit hinge 23 is arranged at the upper right part of the tailgate 1, and the tailgate lock assembly 4 is arranged at the upper left part of the tailgate 1.

[0065] That is, the first limit hinge 21, the second limit hinge 22, the third limit hinge 23 and the tailgate lock assembly 4 are respectively located at the four corners of the tailgate 1, the first limit hinge 21 and the second limit hinge 22 are arranged along the second axial direction, and the third limit hinge 23 and the tailgate lock assembly 4 are arranged along the second axial direction. The first limit hinge 21 and the third limit hinge 23 are arranged along the first axial direction, and the second limit hinge 22 and the tailgate lock assembly 4 are arranged along the first axial direction.

[0066] The first limit hinge 21 can rotate around the first axis and the second axis, that is, it can realize rotational opening in two directions. This is the core component for realizing the side opening mode and the rear flip opening mode. The second limit hinge 22, the third limit hinge 23 and the tailgate lock assembly 4 are constructed into a locked state and an unlocked state. When the second limit hinge 22 is in the locked state, the second limit hinge 22 can rotate around the second axis, and when it is in the unlocked state, it is disengaged from the transmission; when the third limit hinge 23 is in the locked state, the third limit hinge 23 can rotate around the first axis, and when it is in the unlocked state, it is disengaged from the transmission. It should be noted that when disengaging from the transmission, the connection between the tailgate 1 and the vehicle body 20 is disconnected to prepare for mode switching.

[0067] Glass opening mode: the first limit hinge 21, the second limit hinge 22, the third limit hinge 23 and the tailgate lock assembly 4 may or may not be in motion. Figure 1 However, considering the safety of carrying goods, the operation of raising the glass 3 cannot be performed in the rear flip open mode.

[0068] Lateral opening mode: the second limit hinge 22 and the tailgate lock assembly 4 are in the unlocked state, and the third limit hinge 23 is in the locked state. Figure 3 shown.

[0069] Rear flip open mode: the third limit hinge 23 and the tailgate lock assembly 4 are in the unlocked state, and the second limit hinge 22 is in the locked state. Figure 4 shown.

[0070] The first limit hinge 21 can be a single hinge or a combination of multiple hinges. The second limit hinge 22, the third limit hinge 23 and the tailgate lock assembly 4 can be mechanical hinges or electrically controlled hinges. The electrically controlled hinge is electrically connected to the vehicle controller and performs corresponding actions when receiving a mode switching instruction.

[0071] In the above, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0072] In some examples of the present application, a first button 11, a second button and a third button electrically connected to the controller may also be provided, such as Figure 1 and Figure 2As shown, each button corresponds to a working mode, the first button 11 corresponds to the glass 3 lifting mode, the second button corresponds to the lateral opening mode, and the third button corresponds to the rear flip opening mode. The controller responds to the pressing state of the first button 11, and controls the lifting component to drive the glass 3 to rise or lower; the controller responds to the pressing state of the second button, and controls the lifting component to drive the glass 3 to lower and switch to the lateral opening mode; the controller responds to the pressing state of the third button, and controls the lifting component to drive the glass 3 to be stored in the tailgate 1, and switch to the rear flip opening mode. The tailgate 1 and the corresponding limit hinge can be opened by operating the first button 11, the second button and the third button, so that the tailgate 1 can be opened by electric control, which saves the operating procedures of the staff and improves the convenience of the tailgate 1 opening process.

[0073] The first button 11, the second button and the third button are located on the tailgate 1, so that the staff who need to carry the goods can directly operate the buttons to select the opening direction of the tailgate 1. Specifically, the tailgate system 10 also includes a first handle 12 and a second handle 13, the first handle 12 is arranged near the left side of the tailgate 1, and the second handle 13 is arranged in the middle of the tailgate 1. In some embodiments, the first button 11 and the second button are arranged near the first handle 12, and the third button is arranged near the second handle 13.

[0074] Specifically, the second button is integrated on the first handle 12. When the first handle 12 is operated, pressing the second button can unlock the corresponding limit hinge and realize the lateral opening of the tailgate 1; the third button is integrated on the second handle 13. When the second handle 13 is operated, pressing the third button can unlock the corresponding limit hinge and realize the rear flip opening of the tailgate 1.

[0075] In some other embodiments, the above-mentioned buttons can also be located at the driver's seat in the car, or can be remotely controlled by buttons on the car key, which can provide a variety of control options and further increase the convenience of operation. The embodiments of the present application are not limited to this.

[0076] See also Figures 5 to 9 The present application discloses a specific structure of a first limit hinge 21, which includes a first fixed page 211, a second fixed page 212 and a movable page 213. The first fixed page 211 is used to be installed on the vehicle body 20, the movable page 213 is rotatably set on the first fixed page 211 through a first rotating axis, the second fixed page 212 is rotatably set on the movable page 213 through a second rotating axis, and the second fixed page 212 is set on the tailgate 1; the first rotating axis is parallel to the first axial axis, and the second rotating axis is parallel to the second axial axis.

[0077] In the lateral opening mode, the movable page 213 rotates around the first rotation axis relative to the first fixed page 211 and rotates to the lateral opening position, such as Figure 6 and Figure 8 As shown; conversely, the tailgate 1 can be switched from the lateral open position to the closed position.

[0078] In the rear flip open mode, the second fixed page 212 rotates around the second rotation axis and rotates to the rear flip open position. Figure 7 and Fig. 9 As shown, on the contrary, the tailgate 1 can be switched from the rear flip open position to the closed position.

[0079] In order to reduce the occurrence of stuck positions and other phenomena during the switching process between different modes and improve the operating experience, the first limit hinge 21 also includes a torsion spring 214 and a torsion spring seat 215, one end of the torsion spring 214 is fixed to the movable page 213, and the other end of the torsion spring 214 is fixed to the torsion spring seat 215, and the torsion spring seat 215 is fixed to the tailgate 1. Due to the provision of the torsion spring 214, when the tailgate 1 is opened sideways, the movable page 213 takes priority, thereby reducing the occurrence of stuck positions. In addition, the torsion spring 214 ensures that the tailgate 1 will not freely flip down within a certain angle. After exceeding this angle, since the gravity is greater than the limit of the torsion spring 214, the tailgate 1 can freely flip down, fully ensuring the safety of the user.

[0080] like Figures 10 to 12 As shown, the diagram discloses the structure of the second limit hinge 22, which includes a first hinge seat 221 arranged on the vehicle body 20, an auxiliary page 222 arranged on the tailgate 1 and a first hinge lock 223; the first hinge seat 221 includes a first hinge rod 2211 and a second hinge rod 2212, and the first hinge rod 2211 and the second hinge rod 2212 are arranged side by side; the auxiliary page 222 can be hung on the first hinge rod 2211; the second hinge rod 2212 is hung on the first hinge lock 223, and is constructed into a locked state and an unlocked state, in which the second limit hinge 22 can rotate around the second axis in the locked state; in the unlocked state, the first hinge seat 221 is disengaged from the auxiliary page 222 and the first hinge lock 223.

[0081] The auxiliary page 222 includes a groove, and when the second hinge rod 2212 and the first hinge lock 223 are locked, the first hinge rod 2211 cooperates with the groove and can rotate around the second axial direction. When the second hinge rod 2212 and the first hinge lock 223 are unlocked, the first hinge rod 2211 can be disengaged from the groove.

[0082] See also Figures 13 to 16The third position-limiting hinge 23 includes a second hinge seat 231 arranged on the vehicle body 20, a second hinge lock 232 and a pull rope 233 arranged on the tailgate 1. The second hinge seat 231 is hung on the second hinge lock 232 and is constructed into a locked state and an unlocked state. In the locked state, the third position-limiting hinge 23 can rotate around the first axis; in the unlocked state, the second hinge seat 231 and the second hinge lock 232 are disengaged; one end of the pull rope 233 is connected to the vehicle body 20, and the other end of the pull rope 233 is connected to the tailgate 1.

[0083] In some embodiments, the tailgate lock assembly 4 includes a lock seat 41 and a lock body 42. In a locked state, the lock seat 41 is drivingly connected to the lock body 42; in an unlocked state, the lock seat 41 and the lock body 42 are disengaged.

[0084] The present application also discloses a vehicle, including a vehicle body 20 and the above-mentioned tailgate system 10. Since the above-mentioned tailgate system 10 has the above-mentioned beneficial effects, the vehicle including the tailgate system 10 has corresponding effects, which will not be described in detail here.

[0085] In addition, the above-mentioned vehicle may be a fuel vehicle, a gas vehicle, an electric vehicle or a hybrid vehicle.

[0086] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. The scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned application concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in this application (but not limited to) to form a technical solution.

Claims

1. A tailgate system, characterized in that: Includes tailgate, hinge assembly, glass, tailgate lock assembly, sealing assembly and lifting assembly; The glass and the lifting assembly are arranged inside the tailgate, and the lifting assembly is connected to the glass in a transmission manner to lift the glass; The tailgate is arranged at the rear of the vehicle body through the hinge assembly, and the hinge assembly is configured to rotate around a first axial direction and around a second axial direction, wherein the first axial direction is perpendicular to the second axial direction; The tailgate lock assembly can realize the opening or closing of the tailgate; The sealing assembly includes a felt groove and a sealing strip. When the tailgate is in a closed state, the felt groove forms a seal with the glass, and the sealing strip forms a seal between the tailgate and the vehicle body. The tailgate system includes a glass opening mode, a side opening mode and a rear flip opening mode; In the glass opening mode, the lifting assembly operates; In the lateral opening mode, the hinge assembly rotates around a first axis to rotate the tailgate to a lateral opening position; In the rear flip opening mode, the hinge assembly rotates around the second axial direction to rotate the tailgate to the rear flip opening position.

2. The tailgate system according to claim 1, characterized in that: The hinge assembly includes a first limit hinge, a second limit hinge and a third limit hinge tailgate lock assembly, wherein the first limit hinge is arranged at the lower right part of the tailgate, and the first limit hinge can rotate around a first axial direction and a second axial direction; the second limit hinge is arranged at the lower left part of the tailgate, and the hinge can rotate around the second axial direction; the third limit hinge is arranged at the upper right part of the tailgate, and the third limit hinge can rotate around the first axial direction; The tailgate lock assembly is disposed at the upper left portion of the tailgate and is configured to be in a locked state and an unlocked state.

3. The tailgate system according to claim 2, characterized in that: The first limiting hinge includes a first fixed page, a second fixed page and a movable page, the first fixed page is used to be installed on the vehicle body, the movable page is rotatably set on the first fixed page through a first rotating axis, the second fixed page is rotatably set on the movable page through a second rotating axis, and the second fixed page is set on the tailgate; the first rotating axis is parallel to the first axial axis, and the second rotating axis is parallel to the second axial axis.

4. The tailgate system according to claim 3, characterized in that: The first position-limiting hinge further comprises a torsion spring and a torsion spring seat, one end of the torsion spring is fixed to the movable leaf, the other end of the torsion spring is fixed to the torsion spring seat, and the torsion spring seat is fixed to the tailgate.

5. The tailgate system according to claim 2, characterized in that: The second position-limiting hinge includes a first hinge seat arranged on the vehicle body, an auxiliary leaf arranged on the tailgate, and a first hinge lock; The first hinge seat comprises a first hinge rod and a second hinge rod, the first hinge rod and the second hinge rod are arranged side by side; the auxiliary page can be hung on the first hinge rod; The second hinge rod is hung on the first hinge lock and is constructed to be in a locked state and an unlocked state. In the locked state, the second limit hinge can rotate around a second axial direction; in the unlocked state, the first hinge seat is disengaged from the auxiliary page and the first hinge lock.

6. The tailgate system according to claim 2, characterized in that: The third position-limiting hinge includes a second hinge seat arranged on the vehicle body, a second hinge lock and a pull rope arranged on the tailgate. The second hinge seat is hung on the second hinge lock and is constructed to be in a locked state and an unlocked state. In the locked state, the third position-limiting hinge can rotate around a first axial direction; in the unlocked state, the second hinge seat and the second hinge lock are disengaged; one end of the pull rope is connected to the vehicle body, and the other end of the pull rope is connected to the tailgate.

7. The tailgate system according to claim 2, characterized in that: The tailgate lock assembly comprises a lock seat and a lock body. In a locked state, the lock seat is drivingly connected to the lock body; in an unlocked state, the lock seat and the lock body are separated.

8. The tailgate system according to claim 1, characterized in that: The tailgate system also includes a controller, a first button, a second button and a third button; The controller responds to the pressing state of the first button and controls the lifting assembly to drive the glass to rise or lower; The controller responds to the pressing state of the second button, and controls the lifting assembly to drive the glass to lower, and switch to the side opening mode; The controller responds to the pressing state of the third button, and controls the lifting assembly to drive the glass to be stored in the tailgate, and switches to the rear flip opening mode.

9. The tailgate system according to claim 8, characterized in that: The tailgate system further includes a first handle and a second handle, wherein the first handle is disposed near a left side of the tailgate, and the second handle is disposed in a middle portion of the tailgate.

10. The tailgate system according to claim 9, characterized in that: The first button and the second button are arranged close to the first handle, and the third button is arranged close to the second handle.

11. A vehicle, characterized in that: The invention comprises a vehicle body and a tailgate system as claimed in any one of claims 1 to 10.

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