Vehicle

Abstract

The application provides a vehicle, and relates to the technical field of vehicles.The vehicle provided by the application comprises a vehicle body, a back door assembly, a driving mechanism and a fixing seat structure; the vehicle body has a tail opening; the back door assembly is arranged on the tail opening, and the back door assembly comprises a main body structure and a first support, and the main body structure and the first support are connected together; the driving mechanism comprises a driving main body, a rotating shaft, a gear and a sheath, the driving main body is arranged on the back door assembly, the rotating shaft is connected to the driving main body, the gear is sleeved on the rotating shaft, and the sheath is sleeved on the gear; a first end of the fixing seat structure penetrates through the first support and extends into the sheath, and a second end of the fixing seat structure is connected to the vehicle body; wherein the driving mechanism is used for driving the back door assembly to rotate relative to the vehicle body, so as to open or close at least part of the tail opening.The transmission efficiency of the driving mechanism in the vehicle provided by the application is relatively high.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle. Background Technology

[0002] In automobiles and other vehicles, the tailgate assembly is a crucial component used to close the rear opening of the vehicle body. Its design directly affects the convenience of loading and unloading goods, and thus has a critical impact on the overall user experience and practicality of the vehicle. In related technologies, the structure driving the rotation of the tailgate assembly often employs a chain drive. Specifically, this structure typically includes a motor, a drive sprocket connected to the motor's output, a driven sprocket connected to the tailgate assembly hinge, and a chain wound around the drive and driven sprockets. When the motor operates, the drive sprocket drives the chain, which in turn drives the driven sprocket, thus achieving the opening and closing action of the tailgate assembly. This chain drive method controls the movement of the tailgate assembly by indirectly transmitting power. However, in the aforementioned drive structure, the power needs to be indirectly transmitted through multiple components such as the driving sprocket, chain, and driven sprocket, resulting in low transmission efficiency and significant energy loss. This not only increases the load on the motor but also increases the vehicle's energy consumption. Utility Model Content

[0003] This application provides a vehicle that can improve the transmission efficiency of the drive mechanism, reduce energy loss, and thus reduce vehicle energy consumption.

[0004] On one hand, this application provides a vehicle, including a body, a tailgate assembly, a drive mechanism, and a fixed seat structure; the body has a rear opening; the tailgate assembly is disposed at the rear opening, the tailgate assembly includes a main body structure and a first bracket, the main body structure being connected to the first bracket; the drive mechanism includes a drive body, a rotating shaft, a gear, and a protective sleeve, the drive body being disposed on the tailgate assembly, the rotating shaft being connected to the drive body, the gear being sleeved on the rotating shaft, and the protective sleeve being sleeved on the gear; a first end of the fixed seat structure extends through the first bracket into the protective sleeve, and a second end of the fixed seat structure is connected to the body; wherein, the drive mechanism is used to drive the tailgate assembly to rotate relative to the body to open or close at least part of the rear opening.

[0005] In related technologies, power is indirectly transmitted through multiple components such as the driving sprocket, chain, and driven sprocket, resulting in numerous energy loss points. However, in the vehicle provided in this application, the drive mechanism directly acts on the cooperation between the tailgate assembly and the fixed seat structure, reducing intermediate power transmission links. Specifically, the drive unit is mounted on the tailgate assembly, and its connected shaft drives the gear to rotate. The gear, through a sheath, forms a direct power interaction with the first end of the fixed seat structure passing through the first bracket. Unlike chain drives, which rely on the sequential transmission of multiple components, this effectively improves transmission efficiency and reduces energy loss during transmission. This direct drive method not only reduces the load on the drive unit and avoids additional energy consumption caused by indirect power transmission to a certain extent, but also enhances the stability of the entire drive mechanism. By reducing intermediate transmission components, mechanical wear is also reduced, helping to extend the service life of the drive mechanism. At the same time, it simplifies the overall structural layout, making the opening and closing of the tailgate assembly smoother and more reliable, further improving the ease of use of the tailgate assembly and the practicality of the entire vehicle.

[0006] As an optional implementation, the mounting structure includes a connector and a mounting base; the first end of the connector passes through the first bracket and extends into the sheath; the mounting base is connected to the vehicle body, and the mounting base has a first connector groove, which is engaged with the second end of the connector; wherein, the mounting base abuts against the first bracket.

[0007] The first end of the connector passes through the first bracket and extends into the sheath, ensuring a stable fit with the gear and the sheath, providing a reliable connection basis for power transmission. The fixed seat is connected to the vehicle body, and its first insertion slot is engaged with the second end of the connector. This insertion method not only facilitates the quick assembly and subsequent maintenance of the fixed seat structure, but also reduces the connection gap during power transmission, improves the rigidity of the overall structure, and avoids power loss or transmission instability caused by loose connections.

[0008] Meanwhile, the fixed seat abuts against the first bracket. This design can effectively disperse the force generated when the tailgate assembly rotates, reduce the stress on the connection part, further enhance the structural stability and service life of the entire drive mechanism, and make the opening and closing action of the tailgate assembly more precise and smooth, further improving the user experience of the whole vehicle.

[0009] As an optional implementation, the first bracket has a first through hole; the connector includes a connecting body and a first plug; the first end of the connecting body extends through the first through hole into the sheath; the first plug is connected to the second end of the connecting body, and the first plug is engaged with the first plug groove.

[0010] The first end of the connecting body extends into the sheath through the first through hole, allowing for a tighter fit with the sheath and internal gears. This ensures efficient power transmission from the drive mechanism to the connector, reducing potential issues of insufficient contact due to the simple form of the connecting parts. The first connector is connected to the second end of the connecting body and engages with the first connector slot, enhancing the stability of the connection and preventing loosening during the rotation of the tailgate assembly. This reduces shaking and energy loss during power transmission and allows for more targeted assembly of the fixed base structure, improving the overall reliability and stability of the structure and providing a more solid guarantee for the smooth opening and closing of the tailgate assembly.

[0011] As an optional implementation, the fixing base structure also includes a limiting screw; a first opening is formed on one side of the first insertion slot, the limiting screw is connected to the fixing base, and the head of the limiting screw is located at the first opening to restrict the first insertion connector within the first insertion slot.

[0012] During the frequent rotation of the tailgate assembly, the engagement between the first connector and the first slot may experience slight displacement due to stress. The head of the limiting screw effectively blocks the connection at the first opening, preventing the first connector from detaching and thus enhancing the stability of the connection. This ensures that the assembly process of the first connector and the first slot is not affected, while maintaining a continuous fixing function during use, reducing the risk of power transmission interruption or instability due to connection failure.

[0013] As an optional implementation, the mounting base includes a first connector, a second connector, and a third connector; the first connector includes a first body and a snap-fit ​​portion, the first body having a first insertion groove, and the snap-fit ​​portion being connected to the first body; the second connector includes a second body and a connecting protrusion, the second body abutting against a first bracket, the connecting protrusion being connected to the second body, the second body having a communicating mating cavity and a first connecting hole, the first body being mated and connected to the mating cavity, the connecting protrusion having a second connecting hole, the second connecting hole communicating with the first connecting hole; the third connector is connected to the vehicle body, the third connector having a third connecting hole, the connecting protrusion passing through and protruding from the third connecting hole; wherein, the snap-fit ​​portion sequentially passes through the first connecting hole and the second connecting hole and engages with the connecting protrusion.

[0014] The first connector has a first insertion groove on its first main body, providing a stable insertion base for the first connector. The connection between the latch and the first main body lays the groundwork for subsequent cooperation with other components. The second connector's second main body abuts against the first bracket, further dispersing the force when the tailgate assembly rotates. This design echoes the design of the fixing seat abutting against the first side plate, enhancing impact resistance. The second connecting hole on the connecting protrusion communicates with the first connecting hole on the second main body, providing a smooth passage for the latch to insert and ensuring that the first and second connectors can quickly engage. The third connector connects to the vehicle body, with its third connecting hole allowing the connecting protrusion to pass through and protrude. This achieves a stable connection between the second and third connectors and further enhances the overall robustness of the fixing seat with the support of the vehicle body.

[0015] The snap-fit ​​part passes through the first connecting hole and the second connecting hole in sequence and engages with the connecting protrusion. This engagement method not only simplifies the assembly process and allows the connection to be completed without complicated tools, but also maintains the tightness of the connection during long-term use and reduces the risk of loosening.

[0016] As an optional implementation, the vehicle provided in this application further includes a torsion bar and a connecting seat structure, the connecting seat structure being connected to the vehicle body; the tailgate assembly further includes a second bracket, the second bracket being disposed opposite to the first bracket, the second bracket being connected to the main structure, the second bracket having a second through hole, the connecting seat structure passing through the second through hole, and a stop surface being formed on the connecting seat structure, the stop surface abutting against the second bracket; wherein, the first end of the torsion bar is connected to the main structure, and the second end of the torsion bar is connected to the connecting seat structure.

[0017] In this way, by utilizing the elastic deformation characteristics of the torsion bar, an auxiliary elastic force can be provided during the opening or closing of the tailgate assembly, reducing the load on the drive mechanism and making the opening and closing action of the tailgate assembly more effortless and smooth.

[0018] As an optional implementation, the torsion bar is provided with multiple spaced buffer blocks.

[0019] Thus, when the tailgate assembly is opened or closed, the torsion bar will extend or rotate due to deformation, and the buffer block can effectively alleviate the direct collision and friction between the torsion bar and surrounding parts by utilizing its own elastic properties, thereby reducing noise and wear caused by contact.

[0020] Meanwhile, the design of multiple spaced buffer blocks allows the cushioning effect to cover different sections of the torsion bar more evenly, ensuring a stable cushioning effect throughout the entire stroke of the torsion bar and, to a certain extent, preventing damage to components caused by excessive local stress. This protects the torsion bar and surrounding components, extending their service life, and makes the opening and closing process of the tailgate assembly smoother and quieter.

[0021] As an optional implementation, the connecting seat structure includes a connecting sleeve and a connecting seat; the connecting sleeve includes a first sub-sleeve and a second sub-sleeve, the second sub-sleeve is sleeved on the outside of the first sub-sleeve, the first sub-sleeve passes through a second through hole, an insertion hole is formed on the first sub-sleeve, the second end of the torsion rod extends into the insertion hole, and a second insertion groove is formed on the second sub-sleeve; the connecting seat includes a seat body and a second insertion connector, the seat body is connected to the vehicle body, the second insertion connector is connected to the seat body, and the second insertion connector is inserted into the second insertion groove; wherein, the side of the second sub-sleeve facing away from the connecting seat forms a stop surface.

[0022] The first sub-sleeve of the connecting sleeve passes through the second through hole of the second bracket, providing precise positioning for the connection between the connecting seat structure and the second bracket. The second sub-sleeve is fitted over the outside of the first sub-sleeve, which enhances the overall structural strength of the connecting sleeve and prevents the first sub-sleeve from deforming due to excessive force during the rotation of the tailgate assembly. The insertion hole on the first sub-sleeve allows the second end of the torsion bar to extend into, ensuring a tight connection between the torsion bar and the connecting sleeve. This allows the elastic force of the torsion bar to be stably transmitted to the main structure, assisting the smooth movement of the tailgate assembly and reducing power loss. The second insertion slot on the second sub-sleeve engages with the second insertion connector of the connecting seat. This insertion method facilitates the rapid assembly of the connecting sleeve and the connecting seat while ensuring the firmness of the connection. The seat body of the connecting seat is connected to the vehicle body, and the support of the vehicle body further enhances the overall stability of the connecting seat structure.

[0023] In addition, the side of the second sub-sleeve away from the connecting seat forms a stop surface and abuts against the second bracket. This design works in conjunction with the structure of the second main body abutting against the first bracket to form balanced support from both sides of the tailgate assembly, effectively dispersing the force generated when the tailgate assembly rotates and avoiding structural damage caused by concentrated force on one side.

[0024] As an optional implementation, the vehicle provided in this application also includes a fixing block connected to the main structure; wherein, a fourth connecting hole is formed on the fixing block, and the fourth connecting hole is engaged with the first end of the torsion bar.

[0025] During the opening and closing of the tailgate assembly, the torsion bar undergoes elastic deformation and transmits elastic force. The fixed block provides a dedicated connection carrier for the first end of the torsion bar. Compared to the torsion bar being directly connected to the main structure, this indirect connection method can better adapt to the connection requirements of the torsion bar through the structural characteristics of the fixed block. This allows the fourth connecting hole to form a tighter fit with the first end of the torsion bar, reducing connection gaps and preventing the torsion bar from shaking or shifting when force is applied. This ensures that the elastic force can be efficiently and stably transmitted to the main structure, thereby more effectively assisting the drive mechanism in moving the tailgate assembly and reducing the load on the drive mechanism.

[0026] At the same time, the connection between the fixing block and the main structure also enhances the strength of the local structure, enabling it to withstand the force brought by the elastic force transmitted by the torsion bar, and to a certain extent prevents the main structure from experiencing wear or damage at the connection points under long-term stress.

[0027] As an optional implementation, the mounting structure is detachably connected to the vehicle body.

[0028] This facilitates the connection between the fixed mounting structure and the vehicle body, and improves the efficiency of assembling and disassembling the fixed mounting structure and the vehicle body. Attached Figure Description

[0029] Figure 1A schematic diagram of a partial structure of the vehicle provided in an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of a partial structure of the structure shown; Figure 3 for Figure 2 A schematic diagram of the first partial structure of the structure shown; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5 for Figure 4 Enlarged schematic diagram of the local structure at point B; Figure 6 A three-dimensional structural diagram of the first bracket in a vehicle provided in an embodiment of this application; Figure 7 for Figure 6 A schematic diagram of the three-dimensional structure from another perspective; Figure 8 for Figure 3 A schematic diagram of the exploded structure of a local part of the structure shown. Figure 9 for Figure 8 A structural diagram from another perspective; Figure 10 for Figure 2 A schematic diagram of the second partial structure shown; Figure 11 for Figure 10 Enlarged schematic diagram of the local structure at point C; Figure 12 An exploded view of the mounting bracket in a vehicle provided in an embodiment of this application; Figure 13 for Figure 12 A structural diagram from another perspective; Figure 14 for Figure 10 Enlarged schematic diagram of the local structure at point D; Figure 15 for Figure 2 A schematic diagram of the third local structure shown; Figure 16 for Figure 15 A structural diagram from another perspective; Figure 17 for Figure 10 A magnified schematic diagram of the local structure at point E in the middle.

[0030] Explanation of reference numerals in the attached figures: 1. Rear door assembly; 2. Drive mechanism; 3. Mounting structure; 4. Bearing; 5. Torsion bar; 6. Connecting seat structure; 7. Buffer block; 8. Mounting block; 11. Main structure; 12. First bracket; 13. Second bracket; 21. Drive body; 22. Gear; 23. Sheath; 31. Connector; 32. Fixing seat; 33. Limiting screw; 61. Stop surface; 62. Connecting sleeve; 63. Connecting seat; 81. Fourth connecting hole; 82. First sub-block; 83. Second sub-block; 111. Back door body; 112. Inner panel; 121. First bottom plate; 122. First side plate; 123. First reinforcing flange; 131. Second through hole; 132. Second bottom plate; 133. Second side plate; 134. Second reinforcing flange; 311. Connecting body; 312. First connector; 321. First connector groove; 322. First connector; 323. Second connector; 324. Third connector; 621. First sub-sleeve; 622. Second sub-sleeve; 631. Seat body; 632. Second connector; 821. Cavity; 1121, First clearance hole; 1122, Second clearance hole; 1221, First through hole; 3211, First opening; 3221, First main body; 3222, Buckling part; 3223, Groove structure; 3224, First limiting flange; 3225, Second limiting flange; 3226, Connecting plate; 3227, Buckling protrusion; 3231, Second main body; 3232, Connecting protrusion; 3233, First connecting part Hole; 3234, Second connecting hole; 3235, Mating part; 3236, Mating cavity; 3237, Threaded hole; 3238, First plane; 3239, Second plane; 3240, Third plane; 3250, Second opening; 3260, Main body; 3241, Third connecting hole; 3242, First fastening hole; 6211, Insertion hole; 6221, Second insertion groove; 6311, Second fastening hole. Detailed Implementation

[0031] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0032] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0033] In related technologies, the structure driving the tailgate assembly to rotate often employs a chain drive. Specifically, this structure typically includes a motor, a drive sprocket connected to the motor's output, a driven sprocket connected to the tailgate assembly hinge, and a chain wound around the drive and driven sprockets. When the motor operates, the drive sprocket drives the chain, which in turn drives the driven sprocket, thus achieving the opening and closing of the tailgate assembly. This chain drive method controls the movement of the tailgate assembly by indirectly transmitting power. However, in the aforementioned drive structure, because power must be indirectly transmitted through multiple components such as the drive sprocket, chain, and driven sprocket, the transmission efficiency is low, and energy loss is significant. This not only increases the load on the motor but also increases the vehicle's energy consumption.

[0034] Based on this, embodiments of this application provide a vehicle that can improve the transmission efficiency of the drive mechanism, reduce energy loss, and thus reduce vehicle energy consumption.

[0035] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific implementation details.

[0036] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a partial structure of the vehicle provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shows a partial structural schematic of the structure shown. As shown in the figure, this embodiment provides a vehicle, including a body (not shown in the figure), a tailgate assembly 1, a drive mechanism 2, and a fixed seat structure 3; the body has a rear opening; the tailgate assembly 1 is disposed at the rear opening, and the tailgate assembly 1 includes a main structure 11 and a first bracket 12, the main structure 11 and the first bracket 12 being connected together.

[0037] Furthermore, please continue to combine Figures 3 to 5 , Figure 3 for Figure 2 A schematic diagram of the first partial structure of the structure shown. Figure 4 for Figure 3 Cross-sectional view along the AA direction. Figure 5 for Figure 4 A magnified view of the partial structure at point B. In this embodiment, the drive mechanism 2 includes a drive body 21, a rotating shaft (not shown in the figure), a gear 22, and a protective sleeve 23. The drive body 21 is mounted on the tailgate assembly 1, the rotating shaft is connected to the drive body 21, the gear 22 is sleeved on the rotating shaft, and the protective sleeve 23 is sleeved on the gear 22. The first end of the fixed seat structure 3 passes through the first bracket 12 and extends into the protective sleeve 23, and the second end of the fixed seat structure 3 is connected to the vehicle body. The drive mechanism 2 is used to drive the tailgate assembly 1 to rotate relative to the vehicle body to open or close at least part of the rear opening.

[0038] In related technologies, power is indirectly transmitted through multiple components such as the driving sprocket, chain, and driven sprocket, resulting in numerous energy loss points. However, in the vehicle provided in this application, the drive mechanism 2 directly acts on the cooperation between the tailgate assembly 1 and the fixed seat structure 3, reducing intermediate power transmission links. Specifically, the drive body 21 is mounted on the tailgate assembly 1, and its connected shaft drives the gear 22 to rotate. The gear 22, through the sheath 23, forms a direct power interaction with the first end of the fixed seat structure 3 passing through the first bracket 12. Unlike chain drives, it does not rely on the sequential transmission of multiple components, thus effectively improving transmission efficiency and reducing energy loss during transmission. This direct drive method not only reduces the load on the drive unit 21 and avoids additional energy consumption caused by indirect power transmission to a certain extent, but also enhances the stability of the entire drive mechanism 2. Because it reduces intermediate transmission components, the corresponding mechanical wear is also reduced, which helps extend the service life of the drive mechanism 2. At the same time, it simplifies the overall structural layout, making the opening and closing of the tailgate assembly 1 smoother and more reliable, further improving the ease of use of the tailgate assembly 1 and the practicality of the entire vehicle.

[0039] Generally, in order to improve the structural strength of the tailgate assembly 1, the main structure 11 may include a tailgate body 111 and an inner panel 112. The inner panel 112 is connected to the inner side of the tailgate body 111. The first bracket 12 is connected to the inner panel 112. The drive body 21 is disposed on the inner panel 112 and is connected to the inner panel 112 and the first bracket 12.

[0040] Please continue to combine Figure 6 and Figure 7 , Figure 6 This is a three-dimensional structural diagram of the first bracket in the vehicle provided in an embodiment of this application. Figure 7 for Figure 6 A three-dimensional structural schematic diagram from another perspective. As shown in the figure, in a specific embodiment of this invention, the first bracket 12 includes a first base plate 121 and a first side plate 122 that are perpendicular to each other. The first base plate 121 is connected to the inner plate 112 and the driving body 21 by screws or other threaded fasteners. The first side plate 122 is connected to the inner plate 112 by screws or other threaded fasteners, and a first through hole 1221 is provided on the first side plate 122 for the fixing seat structure 3 to pass through.

[0041] Since the first through hole 1221 is formed on the first side plate 122, in order to realize the connection between the sheath 23 and the fixing base structure 3, the inner plate 112 has a first clearance hole 1121 for the sheath 23 to pass through.

[0042] In some embodiments, to improve the structural strength of the first support 12, a first reinforcing flange 123 is connected to a portion of the edge of the first side plate 122. Thus, the structural strength of the first support 12 can be improved by the provision of the first reinforcing flange 123.

[0043] Please continue to combine Figure 8 and Figure 9 , Figure 8 for Figure 3 A schematic diagram of the exploded structure of a local part of the structure shown. Figure 9 for Figure 8 A structural schematic diagram from another perspective. In order to achieve quick disassembly and quick assembly of the first bracket 12, in some embodiments, the fixing seat structure 3 includes a connector 31 and a fixing seat 32; the first end of the connector 31 passes through the first bracket 12 and extends into the sheath 23; the fixing seat 32 is connected to the vehicle body, and the fixing seat 32 has a first connector groove 321, which is engaged with the second end of the connector 31; wherein, the fixing seat 32 abuts against the first side plate 122 of the first bracket 12.

[0044] The first end of the connector 31 passes through the first bracket 12 and extends into the sheath 23, ensuring a stable fit with the gear 22 and the sheath 23, providing a reliable connection basis for power transmission. The fixed seat 32 is connected to the vehicle body, and its first insertion slot 321 is engaged with the second end of the connector 31. This insertion method not only facilitates the quick assembly and subsequent maintenance of the fixed seat structure 3, but also reduces the connection gap during power transmission, improves the rigidity of the overall structure, and avoids power loss or transmission instability caused by loose connection.

[0045] Meanwhile, the fixed seat 32 abuts against the first side plate 122 of the first bracket 12. This design can effectively disperse the force generated when the tailgate assembly 1 rotates, reduce the stress on the plug-in part, further enhance the structural stability and service life of the entire drive mechanism 2, make the opening and closing action of the tailgate assembly 1 more precise and smooth, and further improve the user experience of the whole vehicle.

[0046] The structure of the connector 31 can be as follows: the connector 31 includes a connecting body 311 and a first connector 312; the first end of the connecting body 311 extends into the sheath 23 through the first through hole 1221; the first connector 312 is connected to the second end of the connecting body 311, and the first connector 312 is engaged with the first connector groove 321.

[0047] The first end of the connecting body 311 extends into the sheath 23 through the first through hole 1221, which can form a tighter fit with the sheath 23 and the gear 22 inside, ensuring efficient power transmission from the drive mechanism 2 to the connector 31 and reducing the problem of insufficient contact that may occur due to the single shape of the connecting parts. The first connector 312 is connected to the second end of the connecting body 311 and is inserted into the first insertion slot 321, which can enhance the firmness after insertion and prevent the insertion from becoming loose during the rotation of the tailgate assembly 1, thereby reducing the shaking and energy loss during power transmission. At the same time, it also makes the assembly of the fixed seat structure 3 more targeted, improves the reliability and stability of the overall structure, and provides a more solid guarantee for the smooth opening and closing of the tailgate assembly 1.

[0048] It is understandable that, in order to improve the smoothness of rotation of the first bracket 12 relative to the connector 31, a bearing 4 can be provided between the first through hole 1221 and the connecting body 311. By providing the bearing 4, the smoothness of rotation of the first bracket 12 can be improved, thereby improving the smoothness of rotation of the back door assembly 1.

[0049] Please continue to combine Figure 10 and Figure 11 , Figure 10 for Figure 2 A schematic diagram of the second partial structure of the structure shown. Figure 11 for Figure 10 A magnified view of the partial structure at point C. In some embodiments, the fixing base structure 3 further includes a limiting screw 33; a first opening 3211 is formed on one side of the first insertion groove 321, the limiting screw 33 is connected to the fixing base 32, and the head of the limiting screw 33 is located at the first opening 3211 to restrict the first insertion connector 312 within the first insertion groove 321.

[0050] During the frequent rotation of the tailgate assembly 1, the engagement between the first connector 312 and the first insertion slot 321 may experience slight displacement due to force. The head of the limiting screw 33 forms an effective barrier at the first opening 3211, preventing the first connector 312 from disengaging from the first opening 3211, thereby enhancing the connection stability between the two. In this way, the insertion and assembly process of the first connector 312 and the first insertion slot 321 is not affected, and the fastening function is continuously provided during use, reducing the risk of power transmission interruption or instability due to connection failure.

[0051] Please continue to combine Figure 12 and Figure 13 , Figure 12 This is an exploded view of the mounting bracket in the vehicle provided in an embodiment of this application. Figure 13 for Figure 12A structural schematic diagram from another perspective. As shown in the figure, in some optional embodiments, the fixing base 32 includes a first connector 322, a second connector 323, and a third connector 324; the first connector 322 includes a first body 3221 and a latching part 3222, with a first insertion groove 321 formed on the first body 3221, and the latching part 3222 connected to the first body 3221; the second connector 323 includes a second body 3231 and a connecting protrusion 3232, with the second body 3231 abutting against the first side plate 122 of the first bracket 12, and the connecting protrusion 3232 connected to the second body 3231, and the second body 3231 having a first insertion groove 321 formed on the first body 122. The first body 3221 is connected to the mating cavity 3236 and the first connecting hole 3233. The connecting protrusion 3232 has a second connecting hole 3234 that communicates with the first connecting hole 3233. The third connecting member 324 is connected to the vehicle body. The third connecting member 324 has a third connecting hole 3241. The connecting protrusion 3232 passes through the third connecting hole 3241 and protrudes out of the third connecting hole 3241. The latching part 3222 passes through the first connecting hole 3233 and the second connecting hole 3234 in sequence and engages with the connecting protrusion 3232.

[0052] In this design, the first main body 3221 of the first connector 322 forms a first insertion groove 321, providing a stable insertion base for the first connector 312. The connection between the latching part 3222 and the first main body 3221 lays the groundwork for subsequent cooperation with other components. The second main body 3231 of the second connector 323 abuts against the first bracket 12, which can further disperse the force when the back door assembly 1 rotates. This design echoes the design of the fixing seat 32 abutting against the first side plate 122, jointly enhancing the impact resistance. The connecting protrusion 3... The second connecting hole 3234 on 232 communicates with the first connecting hole 3233 on the second main body 3231, providing a smooth passage for the insertion of the buckle 3222, ensuring that the first connector 322 and the second connector 323 can be quickly engaged; the third connector 324 is connected to the vehicle body, and its third connecting hole 3241 allows the connecting protrusion 3232 to pass through and protrude, which not only achieves a stable connection between the second connector 323 and the third connector 324, but also further enhances the overall firmness of the fixing seat 32 with the support of the vehicle body.

[0053] The snap-fit ​​part 3222 passes through the first connecting hole 3233 and the second connecting hole 3234 in sequence and engages with the connecting protrusion 3232. This engagement method not only simplifies the assembly process and allows the connection to be completed without complicated tools, but also maintains the tightness of the connection during long-term use and reduces the risk of loosening.

[0054] More specifically, the first main body 3221 includes a groove structure 3223, a first limiting flange 3224 and a second limiting flange 3225. The first insertion groove 321 is formed on the groove structure 3223. The first limiting flange 3224 and the second limiting flange 3225 are both connected to the edge of the first insertion groove 321. The latching part 3222 includes a connecting plate 3226 and a latching protrusion 3227. The first end of the connecting plate 3226 is connected to the bottom of the groove structure 3223, and the latching protrusion 3227 is connected to the other end of the connecting plate 3226. The latching protrusion 3227 is engaged with the connecting protrusion 3232.

[0055] It should be noted that, in order to improve the connection reliability between the first connector 322, the second connector 323, and the third connector 324, multiple latching parts 3222 can be provided, such as two in this embodiment. Here, there is no specific limitation on the number of latching parts 3222.

[0056] Furthermore, the second body 3231 includes a mating part 3235 and a main body 3260 connected together. A connecting protrusion 3232 is connected to the main body 3260. The mating part 3235 is connected to the side of the main body 3260 opposite to the connecting protrusion 3232. A mating cavity 3236 is formed on the mating part 3235 to mate with the groove structure 3223. A first connecting hole 3233 is formed on the main body 3260. A second opening 3250 corresponding to the first opening 3211 is formed in the mating cavity 3236. The groove structure 3223 extends into the mating cavity 3236 and mates with the mating cavity 3236. The mating part 3235 also has a threaded hole 3237 to mate with the limiting screw 33.

[0057] The mating part 3235 has a first plane 3238 facing away from the second main body 3231. A second plane 3239 and a third plane 3240 are also formed on the side of the mating part 3235. The first plane 3238 surrounds the opening of the mating cavity 3236. The second plane 3239 and the third plane 3240 are located on both sides of the second opening 3250, respectively. A threaded hole 3237 is formed on the second plane 3239. A first limiting flange 3224 abuts against the first plane 3238, a second limiting flange 3225 abuts against the third plane 3240, and the first plane 3238 abuts against the first side plate 122.

[0058] The third connector 324 is a plate-shaped structure. To facilitate the connection between the fixed base structure 3 and the vehicle body, first fastening holes 3242 can be provided on opposite sides of the third connector 324. Threaded fasteners passing through the first fastening holes 3242 and the vehicle body enable a detachable connection between the fixed base structure 3 and the vehicle body. This improves the efficiency of assembling and disassembling the fixed base structure 3 and the vehicle body.

[0059] It should be noted that, in the specific implementation of this embodiment, the cross-sectional shape of the first connector 312 is oblong, therefore, the first connector groove 321 is a "U" shaped groove, and the mating cavity 3236 is a "U" shaped cavity. Moreover, since the shape of the connecting protrusion 3232 is oblong, the second connecting hole 3234 and the third connecting hole 3241 are both "U" shaped holes.

[0060] Please continue to combine Figure 14 and Figure 15 , Figure 14 for Figure 10 A magnified view of the local structure at point D. Figure 15 for Figure 2 The diagram shows the structural schematic of the third partial structure. To provide assistance during the opening and closing of the tailgate assembly 1, thereby improving the smoothness of the opening and closing process, the vehicle provided in this embodiment also includes a torsion bar 5 and a connecting seat structure 6, which is connected to the vehicle body. The tailgate assembly 1 also includes a second bracket 13, which is disposed opposite to the first bracket 12. The second bracket 13 is connected to the main structure 11 and has a second through hole 131 through which the connecting seat structure 6 passes. The specific structure of the second bracket 13 is the same as that of the first bracket 12, as shown in [reference needed]. Figure 6 and Figure 7 .

[0061] Specifically, the second bracket 13 includes a second base plate 132 and a second side plate 133 that are perpendicular to each other. A second through hole 131 is formed on the second side plate 133. Similarly, a second reinforcing flange 134 is connected to a portion of the edge of the second side plate 133. The second base plate 132 and the second side plate 133 are both detachably connected to the inner plate 112 by screws or other threaded fasteners.

[0062] In order to limit the installation position of the second bracket 13, a stop surface 61 is formed on the connecting seat structure 6, and the stop surface 61 abuts against the second bracket 13; wherein, the first end of the torsion bar 5 is connected to the main body structure 11, and the second end of the torsion bar 5 is connected to the connecting seat structure 6.

[0063] In this way, by utilizing the elastic deformation characteristics of the torsion bar 5, an auxiliary elastic force can be provided during the opening or closing of the tailgate assembly 1, reducing the load on the drive mechanism 2 and making the opening and closing action of the tailgate assembly 1 more effortless and smooth.

[0064] It should be noted that in some other embodiments, the torsion bar 5 described above can be replaced with a pneumatic rod. Specifically, a pneumatic rod is an elastic element that uses gas as its working medium, and it is typically composed of a cylinder, piston, piston rod, seals, and connectors. Its working principle is based on the compressibility and pressure difference of an inert gas (such as nitrogen) inside the cylinder. When an external force is applied, the piston rod extends and retracts under the gas pressure, thereby achieving force transmission and buffering.

[0065] Understandably, in order to connect the torsion bar 5 to the connecting seat structure 6, the inner plate 112 is also provided with a second clearance hole 1122 for the torsion bar 5 to pass through.

[0066] Furthermore, multiple spaced buffer blocks 7 are provided on the torsion bar 5.

[0067] Thus, when the tailgate assembly 1 is opened or closed, the torsion bar 5 will extend or rotate due to deformation, and the buffer block 7 can effectively alleviate the direct collision and friction between the torsion bar 5 and the surrounding parts by utilizing its own elastic properties, thereby reducing noise and wear caused by contact.

[0068] Meanwhile, the design of multiple spaced buffer blocks 7 allows the buffering effect to cover different sections of the torsion bar 5 more evenly, ensuring a stable buffering effect throughout the entire stroke of the torsion bar 5 and avoiding damage to components caused by excessive local stress to a certain extent. This protects the torsion bar 5 and surrounding components, extending their service life, and makes the opening and closing process of the tailgate assembly 1 smoother and quieter.

[0069] In this specific embodiment, the torsion bar 5 is provided with two buffer blocks 7 arranged at intervals. It should be noted that in other embodiments, the number of buffer blocks 7 can also be set to other numbers, such as three, four, five, etc. Here, there is no specific limitation on the number of buffer blocks 7.

[0070] Please continue to combine Figure 16 , Figure 16 for Figure 15A structural schematic diagram from another perspective. The specific structure of the connecting seat structure 6 can be as follows: The connecting seat structure 6 includes a connecting sleeve 62 and a connecting seat 63; the connecting sleeve 62 includes a first sub-sleeve 621 and a second sub-sleeve 622, the second sub-sleeve 622 being fitted onto the outside of the first sub-sleeve 621, the first sub-sleeve 621 passing through the second through hole 131, an insertion hole 6211 being formed on the first sub-sleeve 621, the second end of the torsion rod 5 extending into the insertion hole 6211, and a second insertion groove 6221 being formed on the second sub-sleeve 622; the connecting seat 63 includes a seat body 631 and a second insertion connector 632, the seat body 631 being connected to the vehicle body, the second insertion connector 632 being connected to the seat body 631, and the second insertion connector 632 being inserted into the second insertion groove 6221; wherein, the side of the second sub-sleeve 622 facing away from the connecting seat 63 forms a stop surface 61.

[0071] The first sub-sleeve 621 of the connecting sleeve 62 passes through the second through hole 131 of the second bracket 13, providing precise positioning for the connection between the connecting seat structure 6 and the second bracket 13. The second sub-sleeve 622 is fitted on the outside of the first sub-sleeve 621, which can enhance the overall structural strength of the connecting sleeve 62 and prevent the first sub-sleeve 621 from deforming due to excessive force during the rotation of the tailgate assembly 1. The insertion hole 6211 on the first sub-sleeve 621 allows the second end of the torsion bar 5 to extend into, ensuring a tight connection between the torsion bar 5 and the connecting sleeve 62, so that the elastic force of the torsion bar 5 can be stably transmitted to the main structure 11, assisting the smooth movement of the tailgate assembly 1 and reducing power loss. The second insertion groove 6221 on the second sub-sleeve 622 is inserted into the second insertion connector 632 of the connecting seat 63. This insertion method facilitates the quick assembly of the connecting sleeve 62 and the connecting seat 63, while ensuring the firmness of the connection between the two. The seat body 631 of the connecting seat 63 is connected to the vehicle body, and the overall stability of the connecting seat structure 6 is further improved by the support of the vehicle body.

[0072] In addition, the second sub-sleeve 622 forms a stop surface 61 on the side opposite to the connecting seat 63 and abuts against the second side plate 133 of the second bracket 13. This design, together with the structure of the second main body 3231 abutting against the first side plate 122 of the first bracket 12, forms a balanced support from both sides of the tailgate assembly 1, effectively dispersing the force generated when the tailgate assembly 1 rotates, and avoiding structural damage caused by concentrated force on one side. It should be noted that in the specific implementation of this embodiment, the shape of the second connector 632 is the same as that of the first connector 312, that is, the cross-sectional shape of the second connector 632 is also an oblong shape, and the second connector groove 6221 is a strip groove.

[0073] Furthermore, the seat body 631 and the vehicle body can also be connected by a detachable connection method using screws or other threaded fasteners. Specifically, the seat body 631 has second fastening holes 6311 on opposite sides, and screws or other threaded fasteners pass through the second fastening holes 6311 to connect with the vehicle body, thereby realizing a detachable connection between the connecting seat structure 6 and the vehicle body.

[0074] It should be noted that the assisting effect of the torsion bar 5 can be understood as follows: when the tailgate assembly 1 is in the closed state, the torsion bar 5 will be subjected to a certain initial torsional deformation in advance, and at this time, it stores elastic potential energy; when the tailgate assembly 1 needs to be opened, the drive mechanism 2 provides the initial driving force, and the torsion bar 5 releases the stored elastic potential energy and converts the torque generated by its own torsion into an auxiliary opening force, which acts on the connecting seat structure 6.

[0075] Specifically, the second end of the torsion bar 5 extends into the insertion hole 6211 of the first sub-sleeve 621 of the connecting sleeve 62. The torque generated therefrom is transmitted to the connecting seat 63 through the connecting sleeve 62, and then the seat body 631 connected to the vehicle body transmits the force to the tailgate assembly 1. This helps to overcome the weight of the tailgate assembly 1 itself and the frictional resistance of other components, making the opening process of the tailgate assembly 1 easier. In particular, it can effectively reduce the instantaneous load of the drive mechanism 2 in the initial stage of opening, and avoid the opening jam caused by the weight concentration of the tailgate assembly 1.

[0076] Please continue to combine Figure 17 , Figure 17 for Figure 10 A magnified view of the partial structure at point E. In order to fix the first end of the torsion bar 5, the vehicle provided in this embodiment also includes a fixing block 8, which is connected to the main structure 11; wherein, a fourth connecting hole 81 is formed on the fixing block 8, and the fourth connecting hole 81 is engaged with the first end of the torsion bar 5.

[0077] It should be noted that the torsion bar 5 will undergo elastic deformation and transmit elastic force during the opening and closing of the tailgate assembly 1. The setting of the fixing block 8 provides a dedicated connection carrier for the first end of the torsion bar 5. Compared with the torsion bar 5 being directly connected to the main structure 11, this indirect connection method can better adapt to the connection requirements of the torsion bar 5 through the structural characteristics of the fixing block 8, so that the fourth connecting hole 81 and the first end of the torsion bar 5 form a tighter fit, reduce the connection gap, and prevent the torsion bar 5 from shaking or displacing when force is applied. This ensures that the elastic force can be efficiently and stably transmitted to the main structure 11, thereby more effectively assisting the drive mechanism 2 in driving the tailgate assembly 1 to move and reducing the load on the drive mechanism 2.

[0078] At the same time, the connection between the fixing block 8 and the main structure 11 also enhances the strength of the local structure, enabling it to withstand the force brought by the elastic force transmitted by the torsion bar 5, and to a certain extent prevents the main structure 11 from experiencing wear or damage at the connection points under long-term stress.

[0079] In some specific embodiments, the fixing block 8 includes a first sub-block 82 and a second sub-block 83 that are fastened together, and a fourth connecting hole 81 is formed by the first sub-block 82 and the second sub-block 83. The first sub-block 82 and the second sub-block 83 are detachably connected together by threaded fasteners, and the second sub-block 83 is detachably connected together with the first base plate 121 and the inner plate 112 by threaded fasteners.

[0080] like Figure 15 and Figure 16 As shown, since the bottom surface of the first end of the torsion bar 5 is a plane, the shape of the fourth connecting hole 81 needs to be adapted to the shape of the first end of the torsion bar 5, thus, as Figure 17 As shown, the end face of the second sub-block 83 facing the first sub-block 82 is a plane, and a cavity 821 is formed at the end of the first sub-block 82 facing the second sub-block 83. The shape of the cavity wall of the cavity 821 is adapted to the contour shape of the torsion bar 5. The cavity 821 and the end face of the second sub-block 83 facing the first sub-block 82 enclose each other to form a fourth connecting hole 81.

[0081] If the torsion bar 5 is replaced with a pneumatic bar, the two ends of the pneumatic bar can form a stable connection with the main structure 11 and the connecting seat structure 6 respectively. For example, its first end can cooperate with the main structure 11 through a structure similar to the fixing block 8, and the second end can be connected to the connecting sleeve 62 or the connecting seat 63 of the connecting seat structure 6. This connection method is similar to the installation logic of the torsion bar 5, and there is no need to make significant changes to the existing back door assembly 1, connecting seat structure 6, etc., so as to maintain the compatibility of the structure and the ease of assembly. Compared to the torsion bar 5, which relies on its own deformation to generate torque, the pneumatic rod provides auxiliary force through the uniform change of gas pressure within the cylinder. Throughout the entire stroke of the tailgate assembly 1 from closing to opening, it can output a more balanced support force according to different opening requirements, avoiding the elastic fluctuation problem that may occur with the torsion bar 5. This means that in the initial stage of opening the tailgate assembly 1, the pneumatic rod can provide sufficient initial assistance, reducing the instantaneous load on the drive mechanism; while during the opening process, its force changes gradually, making the movement of the tailgate assembly 1 smoother, reducing jerking sensations, and further improving the smoothness of operation. Because of the excellent guiding properties of its cylinder and piston rod, it effectively suppresses radial sway when the tailgate assembly 1 rotates. Combined with the design of the stop surface 61 of the connecting seat structure 6 abutting against the second bracket 13, it further enhances the force balance on both sides of the tailgate assembly 1, reducing the risk of wear on components such as the second bracket 13 and connecting sleeve 62 due to excessive force on one side. Simultaneously, the damping effect of the internal gas in the pneumatic rod provides a gentle deceleration effect as the tailgate assembly 1 closes, preventing a rigid collision with the rear opening of the vehicle body. This characteristic is similar to the function of the aforementioned buffer block 7, but eliminates the need for additional buffer components, simplifying the structure while improving the integration and reliability of the buffer. Moreover, the sealing structure of the gas spring effectively isolates external dust, moisture, and other impurities, reducing corrosion and wear of internal components, resulting in a longer service life and a lower failure rate. Furthermore, the force of the gas spring can be flexibly adjusted according to the weight of the tailgate assembly 1 for different vehicle models. By changing the gas pressure inside the cylinder, it can be adapted to various specifications of tailgate assembly 1, demonstrating strong adaptability.

[0082] Therefore, in practical applications, either a torsion bar or a pneumatic bar can be selected depending on the requirements. No specific restrictions are imposed here.

[0083] As described above, in the vehicle provided in this embodiment, only one drive mechanism 2 needs to be connected to the fixed base structure 3 to drive the torsion bar 5 and realize the opening and closing of the tailgate assembly 1. This reduces the number of drive mechanisms 2 required, thus lowering the manufacturing cost of the vehicle provided in this embodiment.

[0084] As can be seen from the above, the vehicle provided in this embodiment includes key components such as the vehicle body, tailgate assembly 1, drive mechanism 2, fixed seat structure 3, torsion bar 5, connecting seat structure 6, and fixed block 8. These components work together to improve the system performance.

[0085] Specifically, the vehicle body has a rear opening, and the tailgate assembly 1 is located at the rear opening for opening or closing the opening. It includes a main structure 11, a first bracket 12 and a second bracket 13. The first bracket 12 and the second bracket 13 are arranged opposite to each other and are both connected to the main structure 11, providing a connection base for the fixed seat structure 3 and the connecting seat structure 6, respectively.

[0086] The drive mechanism 2, as the core of power output, includes a drive body 21, a rotating shaft, a gear 22, and a protective sleeve 23. The drive body 21 is mounted on the tailgate assembly 1 and drives the gear 22 to rotate through the rotating shaft. The gear 22 then forms a direct power interaction with the fixed seat structure 3 through the protective sleeve 23. Compared with the chain drive in related technologies, this direct transmission method reduces the intermediate links in power transmission and solves the problem of low efficiency caused by indirect transmission to a certain extent. The fixed seat structure 3 is a key component connecting the tailgate assembly 1 to the vehicle body. It includes a connector 31, a fixed seat 32, and a limiting screw 33, forming a stable and easy-to-assemble connection structure. The first end of the connecting body 311 of the connector 31 passes through the first through hole of the first bracket 12 and extends into the sleeve 23, where it closely cooperates with the gear 22 and the sleeve 23 to ensure efficient power transmission. The first connector 312 is connected to the second end of the connecting body 311 and engages with the first connector slot 321 of the fixed seat 32. This connector design reduces the connection gap and improves the structural rigidity.

[0087] The fixing seat 32 is further composed of a first connector 322, a second connector 323 and a third connector 324. The snap-fit ​​part 3222 of the first connector 322 passes through the first connecting hole 3233 and the second connecting hole 3234 of the second connector 323 in sequence and engages with the connecting protrusion 3232. The third connector 324 is connected to the vehicle body and the connecting protrusion 3232 passes through the third connecting hole 3241, thus realizing a stable connection between the fixing seat 32 and the vehicle body. At the same time, the second body 3231 of the second connector 323 abuts against the first bracket 12, dispersing the force when the tailgate assembly 1 rotates.

[0088] The limiting screw 33 prevents the first connector 312 from disengaging by blocking the first opening 3211 of the first insertion slot 321, thus further enhancing the connection stability. In this way, not only are the problems of multiple parts and loose connections in chain drives solved, but the overall structure's impact resistance and assembly efficiency are also improved through the coordinated engagement and support of multiple parts, reducing power loss and failure risks caused by loose connections. To balance the forces on the tailgate assembly 1 and provide auxiliary power, the vehicle provided in this embodiment is also equipped with a torsion bar 5, a connecting seat structure 6, and a fixing block 8.

[0089] The connecting seat structure 6 is connected to the vehicle body. The first sub-sleeve 621 of the connecting sleeve 62 passes through the second through hole 131 of the second bracket 13. The second sub-sleeve 622 is fitted on the outside of the first sub-sleeve 621 and forms a stop surface 61 that abuts against the second bracket 13. This corresponds to the support of the fixing seat 32 for the first bracket 12, forming symmetrical support from both sides to avoid structural deformation caused by excessive force on one side. The second plug 632 of the connecting seat 63 is inserted into the second plug slot 6221 of the second sub-sleeve 622, further stabilizing the connection between the connecting seat structure 6 and the vehicle body.

[0090] The first end of the torsion bar 5 is connected to the main structure 11 through the fourth connecting hole 81 of the fixing block 8, and the second end extends into the insertion hole 6211 of the connecting sleeve 62. Utilizing its elastic deformation characteristics, it provides auxiliary elastic force during the opening and closing of the tailgate assembly 1, effectively reducing the load on the drive mechanism 2 and, to some extent, solving the problems of high energy consumption and heavy load caused by relying solely on the drive mechanism. Furthermore, the multiple buffer blocks 7 on the torsion bar 5 are spaced apart, mitigating collisions and friction between the torsion bar 5 and surrounding components, reducing noise and wear, and extending the service life of the components. In other words, the vehicle provided in this embodiment solves, to some extent, the technical problems of low efficiency, high energy consumption, and structural instability of chain drives in related technologies by optimizing the transmission path, strengthening the connection structure, balancing the force distribution, and providing auxiliary power. The direct transmission between the drive mechanism 2 and the fixed seat structure 3 improves transmission efficiency and reduces energy loss; the multi-component engagement and limiting design of the fixed seat structure 3 enhances connection stability and reduces the risk of failure; the symmetrical support between the connecting seat structure 6 and the fixed seat 32 balances the force and avoids structural deformation; the auxiliary elastic force of the torsion bar 5 reduces the load on the drive mechanism 2 and improves the smoothness of movement; the design of the buffer block 7 and the fixed block 8 further optimizes component protection and power transmission efficiency. The coordinated operation of each part of the structure makes the opening and closing action of the tailgate assembly 1 more precise and smooth, reduces energy consumption and component wear, extends the service life of the entire system, and improves the user experience of the vehicle tailgate assembly 1 and the practicality of the whole vehicle.

[0091] It should be noted that the closure scheme of the rear door assembly 1 in this embodiment can be applied to the lower rear door of a split rear door. Of course, it can also be applied to other types of rear doors. No specific limitations are made here.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle, characterized in that, include: The body has a rear opening; A tailgate assembly is provided at the rear opening. The tailgate assembly includes a main structure and a first bracket, and the main structure is connected to the first bracket. A drive mechanism includes a drive body, a rotating shaft, a gear, and a protective sleeve. The drive body is mounted on the tailgate assembly, the rotating shaft is connected to the drive body, the gear is sleeved on the rotating shaft, and the protective sleeve is sleeved on the gear. The fixed seat structure has a first end that passes through the first bracket and extends into the protective sleeve, and a second end that is connected to the vehicle body; The drive mechanism is used to drive the tailgate assembly to rotate relative to the vehicle body to open or close at least part of the rear opening.

2. The vehicle according to claim 1, characterized in that, The fixed base structure includes: The connector, with its first end extending through the first bracket and into the sheath; and A mounting base is connected to the vehicle body, and the mounting base has a first insertion slot, which is engaged with the second end of the connector. The fixed seat abuts against the first bracket.

3. The vehicle according to claim 2, characterized in that, The first bracket has a first through hole; The connector includes: The connecting body, with its first end extending through the first through hole into the sheath; and The first connector is connected to the second end of the connecting body, and the first connector is engaged with the first insertion slot.

4. The vehicle according to claim 3, characterized in that, The fixed base structure also includes a limiting screw; A first opening is formed on one side of the first insertion slot. The limiting screw is connected to the fixing base, and the head of the limiting screw is located at the first opening to restrict the first insertion connector within the first insertion slot.

5. The vehicle according to claim 2, characterized in that, The fixing base includes: The first connector includes a first body and a snap-fit ​​part, wherein the first body has a first insertion groove, and the snap-fit ​​part is connected to the first body; The second connector includes a second body and a connecting protrusion. The second body abuts against the first bracket, and the connecting protrusion is connected to the second body. The second body has a communicating mating cavity and a first connecting hole. The first body is mated and connected to the mating cavity. The connecting protrusion has a second connecting hole that communicates with the first connecting hole. The third connector is connected to the vehicle body. A third connection hole is formed on the third connector. The connection protrusion passes through the third connection hole and protrudes out of the third connection hole. The latching part passes through the first connecting hole and the second connecting hole in sequence and engages with the connecting protrusion.

6. The vehicle according to any one of claims 1 to 5, characterized in that, It also includes a torsion bar and a connecting seat structure, the connecting seat structure being connected to the vehicle body; The rear door assembly also includes a second bracket, which is disposed opposite to the first bracket. The second bracket is connected to the main structure. The second bracket has a second through hole. The connecting seat structure passes through the second through hole. A stop surface is formed on the connecting seat structure, and the stop surface abuts against the second bracket. The first end of the torsion bar is connected to the main structure, and the second end of the torsion bar is connected to the connecting seat structure.

7. The vehicle according to claim 6, characterized in that, The torsion bar is provided with multiple spaced buffer blocks.

8. The vehicle according to claim 6, characterized in that, The connecting seat structure includes: A connecting sleeve includes a first sub-sleeve and a second sub-sleeve. The second sub-sleeve is fitted over the outside of the first sub-sleeve. The first sub-sleeve passes through a second through hole and has an insertion hole formed thereon. The second end of the torsion rod extends into the insertion hole. A second insertion groove is formed on the second sub-sleeve. The connector includes a body and a second connector. The body is connected to the vehicle body, and the second connector is connected to the body and inserted into the second connector slot. The stop surface is formed on the side of the second sub-sleeve that is away from the connecting seat.

9. The vehicle according to claim 6, characterized in that, It also includes a fixing block, which is connected to the main structure; The fixing block has a fourth connecting hole, which is connected to the first end of the torsion bar.

10. The vehicle according to any one of claims 1 to 5, 7 to 9, characterized in that, The mounting structure is detachably connected to the vehicle body.

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