Multi-mode driving mechanism for tail door of vehicle

Abstract

The invention relates to the technical field of vehicle parts, in particular to a vehicle tail door multi-mode driving mechanism which comprises a mounting frame, a driving mechanism and a driving mechanism. A drive shaft; the hinge assembly is used for hinging one end of the driving shaft to one side of the tail of the vehicle body; the latch assembly is used for locking the other end of the driving shaft on the other side of the tail part of the vehicle body or unlocking the other end of the driving shaft from the other side of the tail part of the vehicle body; the driving assembly is arranged on the mounting frame and used for applying rotary torsion to the driving shaft, so that the tail door and the driving assembly rotate relative to the driving shaft, and the tail door is opened or closed from the vehicle body; the auxiliary driving assembly provides auxiliary pushing force or pulling force for the tail door when the tail door rotates to be opened or closed relative to the driving shaft; wherein the latch assembly is adjusted to be in a locking state or an unlocking state, so that two opening modes of the tail door are switched. According to the driving mechanism, the downward turning and side turning opening functions of the tail door can be completely and electrically achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle components, and more specifically, to a multi-mode driving mechanism for a tailgate of a pickup truck. Background Art

[0002] In the current automotive design field, pickup trucks are popular for their versatility and practicality, especially in scenarios where they need to carry a lot of cargo or tow heavy objects. However, the tailgate control mechanism of traditional pickup trucks has certain limitations in design. Most pickup trucks are equipped with tailgates that can only be flipped down. Although this meets the needs of daily use to a certain extent, in certain situations, such as loading and unloading operations in narrow spaces, or when items need to be quickly placed and retrieved from the side, this single opening method is not flexible enough.

[0003] In order to solve this problem, some tailgate designs that can be opened sideways have appeared on the market, but these designs often rely on manual operation, or even with electric assistance, they cannot achieve seamless switching between the two modes of downward flipping and side opening. Such designs not only increase the complexity of the driver's operation and reduce efficiency, but also run counter to the trend of lightweight, electrification and intelligence pursued by modern cars. Summary of the invention

[0004] The main purpose of the present invention is to provide a multi-mode driving mechanism for the tailgate of a pickup truck to solve the technical problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the present invention proposes a vehicle tailgate multi-mode driving mechanism, the vehicle comprising: a vehicle body and a tailgate, wherein the driving mechanism comprises:

[0006] A mounting bracket is provided on the tailgate;

[0007] A drive shaft is horizontally arranged on a mounting frame;

[0008] A hinge assembly, the rotation axis of which is arranged vertically and is used to hinge one end of the drive shaft to one side of the rear part of the vehicle body;

[0009] A latch assembly, used to lock the other end of the drive shaft to the other side of the rear of the vehicle body, or to unlock it from the other side of the rear of the vehicle body;

[0010] A drive assembly is disposed on the mounting frame and is used to apply a rotational torque to the drive shaft to rotate the tailgate and the drive assembly relative to the drive shaft to open or close the tailgate from the vehicle body; and / or to drive the tailgate to rotate along the rotation axis of the hinge assembly to open or close the tailgate from the vehicle body;

[0011] An auxiliary drive assembly provides auxiliary pushing or pulling force for the tailgate when the tailgate rotates relative to the drive shaft to open or close;

[0012] The two opening modes of the tailgate are switched by adjusting the latch assembly to a locked state or an unlocked state.

[0013] In the above technical solution, further, the hinge assembly includes:

[0014] A fixing plate, fixedly arranged on the vehicle body;

[0015] Activity board;

[0016] and a connecting shaft, used for rotatably connecting the fixed plate and the movable plate;

[0017] The movable plate is fixedly connected to one end of the driving shaft.

[0018] In any of the above technical solutions, further, the latch assembly includes:

[0019] A fixed lock seat is arranged on the vehicle body and has a lock slot;

[0020] A movable lock seat is arranged on the tailgate and connected to an end of the drive shaft away from the hinge assembly, and the movable lock seat has a lock pin that can be laterally embedded in the lock groove;

[0021] And a lock tongue is arranged on the fixed lock seat and can rotate between a locking position and an unlocking position relative to the fixed lock seat to restrict the lock pin from being separated from the lock slot or being separated from the restriction.

[0022] In any of the above technical solutions, further, the driving component includes:

[0023] A first driving unit is disposed on the mounting frame;

[0024] The first driving part has two output ends, and the driving shaft is divided into two shaft parts, which are respectively connected to the two output ends of the first driving part.

[0025] In any of the above technical solutions, further, the auxiliary drive component includes:

[0026] a first rotating arm, which is rotatable about a drive shaft;

[0027] and a first assisting support rod, one end of which is disposed on the movable plate and the other end of which is connected to the first rotating arm;

[0028] Among them, the first power-assisting support rod is a telescopic rod, and the first rotating arm is connected to the tailgate; when the tailgate is flipped down and opened, the first power-assisting support rod provides an auxiliary thrust for the tailgate to flip downward.

[0029] In any of the above technical solutions, further, the first power-assisting strut is a gas spring.

[0030] In any of the above technical solutions, further, the first rotating arm is an L-shaped structure and is divided into a bottom plate and a side plate. The bottom plate and / or the side plate are arranged on the tailgate, and the driving shaft passes through the side plate and is rotationally connected to the side plate.

[0031] In any of the above technical solutions, further, the auxiliary drive component also includes:

[0032] A second rotating arm is rotatably disposed on the fixed lock seat;

[0033] and a second power-assisting support rod, one end of which is disposed on the vehicle body and the other end of which is connected to the second rotating arm;

[0034] Among them, the second assisting support rod is a telescopic rod; during the process of the tailgate being flipped down and opened, the second assisting support rod applies a rotational thrust to the second rotating arm, and after the second rotating arm rotates and rests against the movable lock seat, it applies a thrust to the movable lock seat and provides an auxiliary thrust for the tailgate to flip downward.

[0035] In any of the above technical solutions, further, the second power-assisting strut is a gas spring.

[0036] Beneficial effects: Compared with the prior art, the driving mechanism of the present application can realize the downward and sideways opening functions of the tailgate in a fully electric manner. They can automatically adjust the position of the tailgate according to the driver's instructions, whether it needs to be flipped down to facilitate the loading and unloading of goods, or needs to be opened sideways to meet the needs of special scenes, it can be easily achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 is a schematic diagram of the connection structure between the driving mechanism and the tailgate when the tailgate of the present invention is closed;

[0039] Figure 2 is a schematic structural diagram of the driving mechanism of the present invention when the tailgate is closed;

[0040] Figure 3 It is a schematic diagram of the structure of the driving mechanism when the tailgate of the present invention is flipped down and opened;

[0041] Figure 4 It is a schematic diagram of the connection structure between the driving mechanism and the tailgate when the tailgate of the present invention is flipped open;

[0042] Figure 5 It is a structural schematic diagram of the driving mechanism when the tailgate of the present invention is flipped open.

[0043] The following are the descriptions of the reference numerals:

[0044] 1. Tailgate; 100. Mounting frame; 200. Drive shaft; 300. Hinge assembly; 310. Fixed plate; 320. Movable plate; 330. Connecting shaft; 400. Latch assembly; 410. Fixed lock seat; 411. Lock slot; 420. Movable lock seat; 421. Lock pin; 430. Lock tongue; 500. Drive assembly; 510. First drive unit; 600. Auxiliary drive assembly; 610. First rotating arm; 611. Bottom plate; 612. Side plate; 620. First power-assisting support rod; 630. Second rotating arm; 640. Second power-assisting support rod; 700. Door lock assembly; 800. Side fixed plate. DETAILED DESCRIPTION

[0045] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0047] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] A downward flip tailgate means that the tailgate can be opened by rotating downward relative to the vehicle body; a side flip tailgate means that the tailgate can be opened by rotating along one of its side ends relative to the vehicle body; these two opening methods enable the tailgate to be used in different scenarios with greater flexibility. Given that the existing pickup truck tailgate cannot realize these two opening methods at the same time, the present application provides a multi-mode drive mechanism for use on pickup trucks.

[0051] The drive mechanism can fully electrically realize the downward and sideways opening functions of the tailgate. They can automatically adjust the position of the tailgate according to the driver's instructions, whether it needs to be flipped down to facilitate loading and unloading of goods, or needs to be opened sideways to adapt to the needs of special scenarios, it can be easily achieved.

[0052] The driving mechanism of the present application is described in detail through the following embodiments.

[0053] Embodiment 1:

[0054] like Figure 1-Figure 5 As shown, in this embodiment, a multi-mode driving mechanism for a vehicle tailgate is provided, and the vehicle comprises: a vehicle body (not shown in the figure) and a tailgate 1; the driving mechanism can open or close the tailgate 1 in a variety of modes according to actual needs.

[0055] Specifically, the driving mechanism includes: a mounting frame 100, which is mounted on the tailgate 1 by bolts; a driving shaft 200, which is horizontally arranged on the mounting frame 100; a hinge assembly 300, whose rotation axis is vertically arranged and used to hinge one end of the driving shaft 200 with one side of the rear of the vehicle body; a latch assembly 400, which is used to lock the other end of the driving shaft 200 on the other side of the rear of the vehicle body, or unlock it from the other side of the rear of the vehicle body; a driving assembly 500, which is arranged on the mounting frame 100, and is used to apply a rotational torque to the driving shaft 200, so that the tailgate 1 and the driving assembly 500 rotate relative to the driving shaft 200 to open or close the tailgate 1 from the vehicle body; and / or, drive the tailgate 1 to rotate along the rotation axis of the hinge assembly 300 to open or close the tailgate 1 from the vehicle body; an auxiliary driving assembly 600, which provides auxiliary thrust or pulling force for the tailgate 1 when the tailgate rotates relative to the driving shaft 200 to open or close;

[0056] The two opening modes of the tailgate 1 are switched by adjusting the latch assembly 400 to a locked state or an unlocked state.

[0057] In this embodiment, the core components that enable the tailgate to flip downward and sideways are the horizontally arranged drive shaft 200 , the drive assembly 500 , the hinge assembly 300 and the latch assembly 400 .

[0058] When the tailgate is flipped down and opened, the latch assembly 400 is first locked so that the end of the drive shaft 200 away from the hinge assembly 300 is fixed to the vehicle body. At this time, both ends of the drive shaft 200 are fixed to the vehicle body. By controlling the drive assembly 500 to start, a rotational torque can be applied to the drive shaft 200. However, since both ends of the drive shaft 200 are fixed and cannot rotate, the entire drive assembly 500 will rotate relatively. When the drive assembly 500 rotates, the mounting frame 100 and the tailgate are driven to rotate, thereby realizing the downward swing opening.

[0059] When the tailgate is flipped open from the side, the latch assembly 400 is first unlocked so that the end of the drive shaft 200 away from the hinge assembly 300 is in an active state. At this time, the drive shaft 200 can swing relative to the vehicle body through the hinge. Since the drive shaft 200 is restricted on the mounting frame 100 and the drive shaft 200 is connected to the drive assembly 500, when the drive shaft 200 swings, it can drive the drive assembly 500, the mounting frame 100 and the tailgate to swing synchronously, thereby realizing side swing opening.

[0060] For the driving mechanism that realizes the above two driving modes of the tailgate, each structure taken separately is a relatively common structure, but after combining the structures with each other, a tailgate driving mechanism that can subvert the single-mode drive of the transmission is highly practical and has broad application prospects.

[0061] In this embodiment, specifically, the hinge assembly 300 includes: a fixed plate 310, fixedly disposed on the vehicle body; a movable plate 320; and a connecting shaft 330, which is used to rotatably connect the fixed plate 310 and the movable plate 320;

[0062] The movable plate 320 is fixedly connected to one end of the driving shaft 200 .

[0063] The latch assembly 400 includes: a fixed lock seat 410, which is arranged on the vehicle body and has a lock slot 411; a movable lock seat 420, which is arranged on the tailgate and connected to the end of the drive shaft 200 away from the hinge assembly 300, and the movable lock seat 420 has a lock pin 421 that can be laterally embedded in the lock slot 411; and a lock tongue 430, which is arranged on the fixed lock seat 410 and can rotate between a locked position and an unlocked position relative to the fixed lock seat 410 to limit the lock pin 421 from disengaging from the lock slot 411, or from disengaging from the restriction.

[0064] The structures of the hinge assembly 300 and the latch assembly 400 mentioned above are relatively common, and as long as they can achieve their respective functions, they will not be described in detail.

[0065] The driving assembly 500 includes: a first driving part 510, which is arranged on the mounting frame 100; wherein the first driving part 510 has two output ends, and the driving shaft 200 is divided into two shaft parts, which are respectively connected to the two output ends of the first driving part 510.

[0066] The first driving part 510 is a reduction motor system. After the motor is reduced in speed by the reducer, it applies torque to the two shafts connected thereto, thereby causing the first driving part 510 to rotate relative to the driving shaft 200, thereby achieving the technical effect that the tailgate rotates without the driving shaft 200 rotating. Compared with the traditional driving structure, this driving structure not only occupies less space, but is also easy to install and disassemble.

[0067] It should be noted that, for the entire driving mechanism, the driving component 500 can only serve as a power component. If the load generated by the weight of the tailgate acts entirely on the driving component 500, it will affect the performance of the driving component 500. After a long time, the driving component 500 will be overloaded and damaged. For this purpose, an auxiliary driving component 600 is provided to balance the weight of the tailgate.

[0068] It should be noted that the present application is a mechanism for driving the tailgate to rotate. In order to ensure that the tailgate can be securely locked to the vehicle body, there is also a door lock assembly 700, and there are two door lock assemblies 700, which are respectively installed on both sides of the rear of the vehicle body, opposite to the upper end of the tailgate. When the tailgate is closed, the two door lock assemblies 700 are activated to lock the tailgate to the vehicle body. When the tailgate needs to be opened, one of them or both are opened according to actual conditions.

[0069] Specifically, one of the door lock assemblies 700 is installed at an upper position on the movable plate 320, and the other door lock assembly 700 is installed at the side of the vehicle body and is opposite to the door lock assembly 700 on the movable plate 320. For the convenience of assembly, a vertically arranged side fixing plate 800 is provided on the side of the fixed lock seat 410, and the side fixing plate 800 is just opposite to the movable plate 320, and the other door lock assembly 700 can be directly installed on the side fixing plate 800. When the tailgate needs to be flipped down and opened, the two door lock assemblies 700 are unlocked at the same time, so that the upper end of the tailgate is free from the restriction, and the tailgate can be flipped along the axis of the driving shaft 200; when the tailgate needs to be flipped sideways and opened, the door lock assembly 700 on the side fixing plate 800 is opened, and the door lock assembly 700 on the movable plate 320 is closed, and the tailgate can be flipped along the rotation axis of the hinge assembly 300.

[0070] It should be noted that, according to actual needs, the driving assembly 500 further includes: a second driving unit (not shown in the figure), which is used to drive the tailgate to rotate with the connecting shaft 330 as the rotation axis. For the second driving unit, a power member that drives the connecting shaft 330 to rotate can be used, as long as it can be implemented, and there is no limitation.

[0071] Embodiment 2:

[0072] This embodiment is a further improvement made on the basis of the first embodiment.

[0073] like Figure 1-Figure 5 As shown, in this embodiment, the auxiliary driving assembly 600 includes: a first rotating arm 610, which can rotate around the driving shaft 200; and a first assisting support rod 620, one end of which is disposed on the movable plate 320, and the other end is connected to the first rotating arm 610;

[0074] The first power-assisting support rod 620 is a telescopic rod, and the first rotating arm 610 is connected to the tailgate; when the tailgate is flipped down and opened, the first power-assisting support rod 620 provides an auxiliary thrust for the tailgate to flip downward.

[0075] When the tailgate is flipped down, the actual force point of the tailgate is the connection between the two shaft parts of the drive shaft 200 and the two output ends of the first drive part 510; when the tailgate is flipped sideways, the weight of the tailgate is all applied to the connection between the drive shaft 200 and the movable plate 320. Therefore, an auxiliary drive assembly 600 is provided to balance the tailgate, so that the service life of the entire drive mechanism is longer.

[0076] Specifically, the auxiliary drive assembly 600 includes: a first rotating arm 610 and a first assisting support rod 620; the first rotating arm 610 is installed on the tailgate, and then the upper end of the first assisting support rod 620 is connected to the movable plate 320, and the lower end is connected to the first rotating arm 610. It should be noted that the first assisting support rod 620 is a gas spring. When the tailgate is flipped down, the first assisting support rod 620 will extend under the action of its elastic force and act on the first rotating arm 610, so that the tailgate can not only flip down quickly, but also after flipping down to a certain angle, the first assisting support rod 620, under the action of its spring, will have another pulling force on the first rotating arm 610, thereby slowing down the opening of the tailgate. In other words, the tailgate is first opened to a certain angle at a faster speed, and then slowly opened to the maximum angle, thereby realizing efficient control of the tailgate.

[0077] On the other hand, under the action of the first rotating arm 610, a load corresponding to a portion of the weight of the tailgate is transferred from the first rotating arm 610 to the first power support rod 620, and finally to the movable plate 320, thereby balancing the tailgate.

[0078] It should be noted that the drive shaft 200 is arranged to pass through the first rotating arm 610, and the drive shaft 200 and the first rotating arm 610 are rotatably arranged through bearings. This arrangement not only facilitates the assembly of various components, but more importantly, increases the force point of the drive shaft 200, which not only makes the tailgate more stable when rotating, but also further balances the weight of the tailgate.

[0079] In this embodiment, specifically, the first rotating arm 610 is an L-shaped structure and is divided into a bottom plate 611 and a side plate 612 . The bottom plate 611 and / or the side plate 612 are arranged on the tailgate, and the driving shaft 200 passes through the side plate 612 and is rotatably connected to the side plate 612 .

[0080] Embodiment three:

[0081] This embodiment is a further improvement made on the basis of the second embodiment.

[0082] like Figure 1-Figure 5As shown, in this embodiment, the auxiliary drive assembly 600 further includes: a second rotating arm 630, which is rotatably disposed on the fixed lock seat 410; and a second power support rod 640, one end of which is disposed on the vehicle body and the other end is connected to the second rotating arm 630;

[0083] Among them, the second assisting support rod 640 is a telescopic rod; during the process of the tailgate being flipped down and opened, the second assisting support rod 640 applies a rotational thrust to the second rotating arm 630, and after the second rotating arm 630 rotates and rests against the movable lock seat 420, it applies a thrust to the movable lock seat 420 and provides an auxiliary thrust for the tailgate to flip downward.

[0084] In order to further improve the stability of the tailgate when flipping down and sideways, balance the weight of the tailgate, and reduce the load of the first driving part 510, a second rotating arm 630 and a second assisting support rod 640 are also provided. The second rotating arm 630 and the second assisting support rod 640 are arranged on the other side of the driving shaft 200, and are symmetrically arranged with the first rotating arm 610 and the first assisting support rod 620.

[0085] It should be noted that the second power-assisting support rod 640 has the same structure as the first power-assisting support rod 620 and is also a gas spring. The function of the second power-assisting support rod 640 is the same as that of the first power-assisting support rod 620, so a detailed description thereof will not be given.

[0086] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A vehicle tailgate multi-mode drive mechanism, the vehicle comprising: The vehicle body and tailgate are characterized in that the driving mechanism comprises: A mounting frame (100) is arranged on the tailgate; A driving shaft (200) is horizontally arranged on the mounting frame (100); A hinge assembly (300) having a rotation axis arranged vertically and used for hinge-connecting one end of the drive shaft (200) to one side of the rear portion of the vehicle body; A latch assembly (400) for locking the other end of the drive shaft (200) on the other side of the rear portion of the vehicle body, or unlocking the other end of the drive shaft (200) from the other side of the rear portion of the vehicle body; a driving assembly (500) disposed on the mounting frame (100) and used for applying a rotational torque to the driving shaft (200) so that the tailgate and the driving assembly (500) rotate relative to the driving shaft (200) to open or close the tailgate from the vehicle body; and / or driving the tailgate to rotate along the rotation axis of the hinge assembly (300) to open or close the tailgate from the vehicle body; an auxiliary drive assembly (600) for providing auxiliary thrust or pull for the tailgate when the tailgate is rotated relative to the drive shaft (200) to open or close; The two opening modes of the tailgate are switched by adjusting the latch assembly (400) to a locked state or an unlocked state.

2. The vehicle tailgate multi-mode driving mechanism according to claim 1, characterized in that: The hinge assembly (300) comprises: A fixing plate (310) fixedly arranged on the vehicle body; Movable plate (320); and a connecting shaft (330) for rotatably connecting the fixed plate (310) and the movable plate (320); Wherein, the movable plate (320) is fixedly connected to one end of the driving shaft (200).

3. The vehicle tailgate multi-mode driving mechanism according to claim 1, characterized in that: The latch assembly (400) comprises: A fixed lock seat (410) is arranged on the vehicle body and has a lock slot (411); A movable lock seat (420) is arranged on the tailgate and connected to an end of the drive shaft (200) away from the hinge assembly (300), and the movable lock seat (420) has a lock pin (421) that can be laterally embedded in the lock groove (411); And a lock tongue (430) is arranged on the fixed lock seat (410) and can rotate between a locking position and an unlocking position relative to the fixed lock seat (410) to restrict the lock pin (421) from being disengaged from the lock slot (411) or being disengaged from the restriction.

4. The vehicle tailgate multi-mode driving mechanism according to claim 1, characterized in that: The driving assembly (500) comprises: A first driving unit (510) is arranged on the mounting frame (100); The first driving part (510) has two output ends, and the driving shaft (200) is divided into two shaft parts, which are respectively connected to the two output ends of the first driving part (510).

5. The vehicle tailgate multi-mode driving mechanism according to claim 2, characterized in that: The auxiliary drive assembly (600) comprises: A first rotating arm (610) capable of rotating around the driving shaft (200); and a first booster support rod (620), one end of which is disposed on the movable plate (320) and the other end of which is connected to the first rotating arm (610); The first power-assisting support rod (620) is a telescopic rod, and the first rotating arm (610) is connected to the tailgate; during the process of the tailgate flipping down to open, the first power-assisting support rod (620) provides auxiliary thrust for the tailgate to flip down.

6. The vehicle tailgate multi-mode driving mechanism according to claim 5, characterized in that: The first assist support rod (620) is a gas spring.

7. The vehicle tailgate multi-mode driving mechanism according to claim 5, characterized in that: The first rotating arm (610) is an L-shaped structure and is divided into a bottom plate (611) and a side plate (612); the bottom plate (611) and / or the side plate (612) are arranged on the tailgate; the driving shaft (200) passes through the side plate (612) and is rotatably connected to the side plate (612).

8. The vehicle tailgate multi-mode driving mechanism according to claim 3, characterized in that: The auxiliary drive assembly (600) further comprises: A second rotating arm (630) is rotatably disposed on the fixed lock seat (410); and a second power-assisting support rod (640), one end of which is disposed on the vehicle body and the other end of which is connected to the second rotating arm (630); The second assisting support rod (640) is a telescopic rod; during the process of the tailgate being flipped down and opened, the second assisting support rod (640) applies a rotational thrust to the second rotating arm (630), and after the second rotating arm (630) rotates and abuts against the movable lock seat (420), it applies a thrust to the movable lock seat (420), and provides an auxiliary thrust for the tailgate to flip downward.

9. The vehicle tailgate multi-mode driving mechanism according to claim 8, characterized in that: The second power-assisting support rod (640) is a gas spring.

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