Vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a vehicle. The vehicle comprises a vehicle body, a back door, a driving assembly and a balance rod, the back door comprises a first door body and a second door body, the first door body is located below the second door body in the vertical direction, and the first door body and the second door body are rotationally arranged on the vehicle body; the driving assembly comprises a driving part and a transmission part which are connected with each other, the driving part is hinged to the vehicle body, and the transmission part is hinged to the first door body and is suitable for translating relative to the driving part under the driving of the driving part; the balance rod comprises a first elastic piece, one end of the first elastic piece is connected to the first door body, and the other end of the first elastic piece is connected to the vehicle body. The problem that a ground door driving mechanism is large in occupied space is solved, the technical problems that the requirement for the bearing capacity of the driving mechanism is high, and the driving mechanism is prone to damage are solved, and the technical effect of reducing the bearing capacity of the driving mechanism is achieved.

Description

Technical Field

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

[0002] A car's top-to-bottom tailgate is a tailgate that's divided into two parts: a top door and a bottom door. The top door pivots around a hinge axis located on the upper part of the vehicle body, while the bottom door pivots around a hinge axis located on the lower part of the vehicle body. The bottom door's pivoting motion requires a drive mechanism. When the bottom door closes, the drive mechanism pulls the bottom door upward around the hinge axis located on the lower part of the vehicle body. The bottom door drive mechanism in related art occupies a large volume and lacks auxiliary components to support the closing process. The drive mechanism bears significant forces, placing high demands on the drive mechanism and making it susceptible to damage. Utility Model Content

[0003] The present application provides a vehicle, which solves the problem that the floor door driving mechanism occupies a large volume, as well as the technical problems of high bearing capacity requirements for the driving mechanism and easy damage of the driving mechanism.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0005] An embodiment of the present application provides a vehicle, which includes a body, a tailgate, a drive assembly and a balance bar, the tailgate including a first door body and a second door body, and in the vertical direction, the first door body is located below the second door body, and the first door body and the second door body are both rotatably arranged on the body; the drive assembly includes a drive part and a transmission part connected to each other, the drive part is hinged to the body, the transmission part is hinged to the first door body, and the transmission part is suitable for translation relative to the drive part under the drive of the drive part; the balance bar includes a first elastic member, one end of the first elastic member is connected to the first door body, and the other end of the first elastic member is connected to the body.

[0006] The vehicle proposed in the embodiment of the present application comprises a driving assembly including a driving portion and a transmission portion, wherein the driving portion is hinged to the vehicle body, and the transmission portion is hinged to the first door body, and the driving portion and the transmission portion are connected to drive the transmission portion to move linearly. The balance bar comprises a first elastic member, and the two ends of the first elastic member are respectively connected to the vehicle body and the first door body. When the driving portion drives the transmission portion, and the transmission portion pushes the first door body to rotate downward from open to fully open, the first elastic member generates a pulling force on the first door body, i.e., a damping effect; when the transmission portion pulls the first door body from a fully open state to close, the first elastic member contracts under the action of the restoring force, and the first elastic member pulls the first door body, that is, the first elastic member can provide auxiliary pulling force for the driving of the driving portion, reduce the load of the driving portion, and thereby improve the life of the driving mechanism.

[0007] Optionally, the drive unit includes a drive motor and a screw, wherein the motor shaft of the drive motor is connected to the screw; the transmission unit is configured as a movable sleeve, which is sleeved on the screw and threadably engaged with the screw, and is hinged to the first door body. The motor shaft of the drive motor drives the screw to rotate, and the rotation of the screw drives the movable sleeve to move linearly, thereby opening or closing the first door body.

[0008] Optionally, the movable sleeve includes a first sleeve and a first nut. The first sleeve is sleeved on the screw, the first nut is fixed to the first sleeve and engages with the screw thread, and the first sleeve is hinged to the first door. The first nut engages with the screw thread, and the first sleeve is fixedly connected to the first nut. When the screw rotates, the first nut moves along the screw thread, the first nut moves with the first sleeve, and the first sleeve opens or closes the first door.

[0009] Optionally, the drive assembly further includes a second sleeve, the second sleeve being sleeved on the first sleeve and fixed to the drive motor. When the first sleeve moves, relative movement occurs between the first sleeve and the second sleeve, and the second sleeve can guide and support the movement of the first sleeve.

[0010] Optionally, the driving unit includes a cylinder and a piston, the piston being movably disposed within the cylinder; the transmission unit is configured as a connecting rod, one end of which is connected to the piston and the other end of which is hinged to the first door. The cylinder drives the piston to move, the piston drives the connecting rod to move, and the connecting rod drives the first door to open or close.

[0011] Optionally, the cylinder body is a hydraulic cylinder body or a pneumatic cylinder body. The hydraulic cylinder body or the pneumatic cylinder body provides power to the connecting rod, and the connecting rod extends outward or retracts inward, thereby driving the first door body to open or close.

[0012] Optionally, there are multiple balance bars, spaced apart along the left-right direction of the vehicle. When the first door is opened, the first elastic member in each balance bar is stretched, providing damping for the first door, thereby reducing noise or vibration caused by the first door opening too quickly. When the first door is closed, the first elastic member in each balance bar is contracted, generating a pulling force for the first door, thereby assisting the drive unit and reducing the load on the drive unit.

[0013] Optionally, there are two balance bars and include a first balance bar and a second balance bar, the two ends of the first elastic member of the first balance bar are connected to the left end of the first door body and the left end of the vehicle body, and the two ends of the first elastic member of the second balance bar are connected to the right end of the first door body and the right end of the vehicle body.

[0014] When the first door body is opened, the first elastic members in the first balance bar and the second balance bar are stretched, providing damping for the first door body and reducing the sound or vibration caused by the first door body opening too quickly; when the first door body is closed, the first elastic members in the first balance bar and the second balance bar are contracted, generating tension for the first door body, providing assistance to the driving part and reducing the load on the driving part.

[0015] Optionally, the balance bar further includes an inner tube and an outer tube, the outer tube being sleeved within the inner tube and hinged to the first door body, which in turn is hinged to the vehicle body; one end of the first elastic member is connected to the vehicle body via the inner tube, and the other end of the first elastic member is connected to the first door body via the outer tube. When the first door body opens, it drives the outer tube to move relative to the inner tube, which in turn causes the first elastic member to stretch, creating a damping effect on the opening of the first door body; when the first door body closes, the first door body pushes the outer tube to move relative to the inner tube, while the first elastic member pulls the outer tube to move relative to the inner tube, providing assistance for closing the first door body and reducing the load on the drive unit.

[0016] Optionally, the inner conduit has a first end and a second end, the first end being hinged to the vehicle body, and the second end being provided with a first stopper protruding from an outer circumferential wall of the inner conduit; the outer conduit has a third end and a fourth end, the third end being hinged to the first door body, and the fourth end being provided with a second stopper protruding from an inner circumferential wall of the outer conduit; and along the axial direction of the balance bar, projections of the first stopper and the second stopper at least partially overlap. Along the axial direction of the balance bar, when the first stopper and the second stopper abut against each other, the first stopper and the second stopper restrict further stretching of the first elastic member, thereby limiting the maximum extension length of the balance bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a structural diagram of the vehicle of the present application, wherein the first door is in a closed state;

[0019] Figure 2 This is a structural diagram of the vehicle of the present application, wherein the first door is in an open state;

[0020] Figure 3 This is a schematic diagram of the structure of the drive component of this application;

[0021] Figure 4 This is a structural diagram of the balance bar of this application.

[0022] [Description of Reference Numerals]

[0023] 1: back door; 11: first door body; 12: second door body;

[0024] 2: drive assembly; 21: drive unit; 211: drive motor; 212: screw; 213: reducer; 22: movable sleeve; 221: first sleeve; 222: first nut; 223: inner sleeve; 2231: abutment end; 224: outer sleeve; 23: second sleeve;

[0025] 3: Balance bar; 31: First balance bar; 32: Second balance bar; 33: First elastic member; 34: Inner guide tube; 341: First stopper; 342: First end; 343: Second end; 344: First center portion; 345: First portion; 35: Outer guide tube; 351: Second stopper; 352: Third end; 353: Fourth end; 354: Second center portion; 355: Second portion;

[0026] 4: first ball and socket assembly; 5: second ball and socket assembly;

[0027] 100: Car body. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0030] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0033] The term "multiple" in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0034] A car's top-bottom tailgate is a tailgate that is divided into two parts: a top door and a bottom door. The top door pivots around a hinge axis arranged on the upper part of the car body, while the bottom door pivots around a hinge axis arranged on the lower part of the car body. The pivoting movement of the bottom door requires a drive mechanism. Currently, the drive mechanism mostly uses a rocker mechanism, which is arranged inside the cavity of the bottom door to drive the bottom door to pivot. However, the drive mechanism is large in size and requires a large space, making it difficult to arrange. When the bottom door is closed, the drive mechanism needs to pull the bottom door to pivot upward around the hinge axis of the lower part of the car body. In addition, there are no auxiliary parts to support the closing process of the bottom door. The electric drive mechanism needs to bear the force of the pivoting movement of the bottom door when closing alone. This force is relatively large, and the requirements for the drive mechanism are high.

[0035] In view of this, the embodiment of the present application provides a vehicle, referring to Figures 1 to 4The vehicle includes a body, a tailgate 1, a drive assembly 2 and a balance bar 3. The tailgate 1 includes a first door body 11 and a second door body 12. In the vertical direction, the first door body 11 is located below the second door body 12. The first door body 11 and the second door body 12 are both rotatably arranged on the body; the drive assembly 2 includes a drive part 21 and a transmission part connected to each other. The drive part 21 is hinged to the body 100, and the transmission part is hinged to the first door body 11. The transmission part is suitable for translation relative to the drive part 21 under the drive of the drive part 21; the balance bar 3 includes a first elastic member 33, one end of the first elastic member 33 is connected to the first door body 11, and the other end of the first elastic member 33 is connected to the body 100.

[0036] In the vehicle proposed in the embodiment of the present application, the drive assembly 2 includes a drive unit 21 and a transmission unit. The drive unit 21 is hinged to the vehicle body 100, and the transmission unit is hinged to the first door body 11. The drive unit 21 and the transmission unit are connected to drive the transmission unit to move linearly. The balance bar 3 includes a first elastic member 33, and the two ends of the first elastic member 33 are respectively connected to the vehicle body 100 and the first door body 11. When the drive unit 21 drives the transmission unit, and the transmission unit pushes the first door body 11 from open to fully open and rotates downward, the first elastic member 33 exerts a pulling force on the first door body 11, that is, a damping effect; when the transmission unit pulls the first door body 11 from the fully open state to close, the first elastic member 33 contracts under the action of the restoring force, and the first elastic member 33 pulls the first door body 11. In other words, the first elastic member 33 can provide auxiliary pulling force for the drive of the drive unit 21, reduce the load on the drive unit 21, and thereby improve the life of the drive mechanism.

[0037] It should be understood that when the first door 11 is opened, the first door 11 rotates at a relatively high speed due to the combined effects of the drive unit 21 and the gravity of the first door 11. In the present application, a first elastic member 33 is provided. When the first door 11 is opened, the first elastic member 33 stretches, and the restoring force of the first elastic member 33 damps the first door 11, reducing the rotation speed of the first door 11 and thereby reducing vibration or sound generated by the overly rapid rotation of the first door 11.

[0038] When the first door 11 is closed, the driving unit 21 pulls the first door 11 to rotate, which needs to overcome the gravity of the first door 11. Therefore, the driving unit 21 needs to apply a large load force. In the present application, the first elastic member 33 is provided to stretch when the first door 11 is opened. When the first door 11 is closed, the restoring force of the first elastic member 33 acts on the first door 11, generating an auxiliary pulling force on the first door 11, thereby reducing the load on the first door 11.

[0039] Specifically, the tailgate 1 includes a first door body 11 and a second door body 12. In the vertical direction, where the vertical direction is the up-down direction of the vehicle, the first door body 11 is located at the bottom and the second door body 12 is located at the top. The first door body 11 has an upper edge and the second door body 12 has a lower edge. When the tailgate 1 is closed, the upper edge and the lower edge abut against each other. For example, the lower edge of the second door body 12 abuts against the outer side of the upper edge of the first door body 11. Figure 1 and Figure 2 When the back door 1 is opened, the lower edge of the second door body 12 rotates upward and the upper edge of the first door body 11 rotates downward, that is, the first door body 11 and the second door body 12 are opened at the same time; or, the lower edge of the second door body 12 rotates upward and the first door body 11 remains closed, that is, the second door body 12 is opened and the first door body 11 is closed; or, the upper edge of the first door body 11 is partially opened to release the restriction of the second door body 12 on the first door body 11, and then the lower edge of the first door body 11 is rotated downward, that is, the first door body 11 is opened and the second door body 12 is closed.

[0040] The driving unit 21 is hinged to the vehicle body 100 and is connected to the transmission unit. The transmission unit is hinged to the first door body 11. The driving unit 21 drives the transmission unit to move linearly, and the transmission unit pushes the first door body 11 to rotate, so that the first door body 11 is opened or closed. It should be understood that the driving unit 21 can be a hydraulic push rod, an electric push rod, etc.

[0041] The first elastic member 33 is a tension spring. When the driving part 21 drives the transmission part to open the first door body 11, the first elastic member 33 stretches to generate tension, thereby reducing the rapid movement of the first door body 11; when the driving part 21 drives the transmission part to close the first door body 11, the first elastic member 33 assists the driving part 21 in pulling the first door body 11, thereby reducing the load of the driving part 21.

[0042] Optionally, refer to Figure 2 The drive unit 21 includes a drive motor 211 and a screw rod 212. The motor shaft of the drive motor 211 is connected to the screw rod 212. The transmission unit is constructed as a movable sleeve 22. The movable sleeve 22 is sleeved on the screw rod 212 and threadedly engaged with the screw rod 212. The movable sleeve 22 is hinged to the first door body 11. The motor shaft of the drive motor 211 drives the screw rod 212 to rotate. The rotation of the screw rod 212 drives the movable sleeve 22 to move along a straight line, thereby opening or closing the first door body 11. Since the drive unit 21 does not have a rocker mechanism, the drive assembly 2 has a simple structure, the drive unit 21 is small in size, and occupies little space.

[0043] Specifically, the drive unit 21 includes a drive motor 211 and a screw rod 212, and also includes a reducer 213. The reducer 213 is a gearbox reduction gear. The motor shaft of the drive motor 211 is connected to the reducer 213, and the reducer 213 is connected to the screw rod 212 through a coupling. The movable sleeve 22 is sleeved on the screw rod 212 and threadedly engaged with the screw rod 212. The drive motor 211 drives the reducer 213 to rotate, and the reducer 213 drives the screw rod 212 to rotate through the coupling. The screw rod 212 drives the movable sleeve 22 to move linearly through the thread. The movable sleeve 22 is hinged to the first door body 11. The movable sleeve 22 extends relative to the screw rod 212 and presses the first door body 11 to open; the movable sleeve 22 retracts relative to the screw rod 212 and pulls the first door body 11 to close.

[0044] Optionally, refer to Figure 2 The movable sleeve 22 includes a first sleeve 221 and a first nut 222. The first sleeve 221 is sleeved on the screw rod 212. The first nut 222 is fixed to the first sleeve 221 and threadedly engaged with the screw rod 212. The first sleeve 221 is hinged to the first door body 11.

[0045] Specifically, the first nut 222 is threadedly engaged with the screw rod 212, and the first sleeve 221 is fixedly connected to the first nut 222. When the screw rod 212 rotates, the first nut 222 moves along the thread of the screw rod 212, and the first nut 222 moves with the first sleeve 221, and the first sleeve 221 opens or closes the first door body 11.

[0046] If the screw rod 212 rotates clockwise, the first nut 222 moves outward along the screw rod 212, and the first nut 222 moves the first sleeve 221 outward, and the first sleeve 221 pushes the first door body 11 to open; if the screw rod 212 rotates counterclockwise, the first nut 222 moves inward along the screw rod 212, and the first nut 222 moves the first sleeve 221 inward, and the first sleeve 221 pulls the first door body 11 to close.

[0047] In a specific embodiment, the first sleeve 221 is hinged to the first door body 11 via a first ball-and-socket assembly 4 , and the driving portion 21 is hinged to the vehicle body 100 via a second ball-and-socket assembly 5 .

[0048] In a specific embodiment, the movable sleeve 22 also includes an outer sleeve 224, and the outer sleeve 224 is sleeved on the first sleeve 221. The first sleeve 221 is riveted to the first ball and socket assembly 4, and the outer sleeve 224 is fixedly connected to the first ball and socket assembly 4. The outer sleeve 224 is sleeved on the outside of the first sleeve 221 to protect the first sleeve 221 and to provide an aesthetic effect. When the screw rod 212 rotates, the first nut 222 generates an axial displacement along the axial direction of the screw rod 212, and the first nut 222 drives the first sleeve 221, the outer sleeve 224 and the first ball and socket assembly 4 to move axially together, thereby driving the first door body 11 to open or close.

[0049] Optionally, refer to Figure 2 The drive assembly 2 further includes a second sleeve 23, which is sleeved within the first sleeve 221 and fixed to the motor. An inner sleeve 223 is sleeved within the first sleeve 221, and the second sleeve 23 is sleeved within the inner sleeve 223. The inner sleeve 223 has an abutment end 2231 that abuts against the inner wall of the second sleeve 23. The second sleeve 23 is fixed to the abutment end 2231. When the first sleeve 221 moves, relative movement occurs between the first sleeve 221 and the second sleeve 23. The second sleeve 221 and the inner sleeve 223 guide and support the movement of the first sleeve 221.

[0050] In a specific embodiment, the second sleeve 23 is hinged to the vehicle body 100 via a second ball-and-socket assembly 5 , and the drive motor 211 , the reducer 213 and the screw rod 212 are disposed in the second sleeve 23 .

[0051] Optionally, the driving unit 21 includes a cylinder and a piston disposed in the cylinder, the piston being movably disposed in the cylinder; the transmission unit is configured as a connecting rod, one end of which is connected to the piston, and the other end of which is hinged to the first door body 11. The cylinder drives the piston to move, the piston drives the connecting rod to move, and the connecting rod drives the first door body 11 to open or close.

[0052] Optionally, the cylinder body is a hydraulic cylinder body or a pneumatic cylinder body. The hydraulic cylinder body or the pneumatic cylinder body provides power to the connecting rod, and the connecting rod extends outward or retracts inward, thereby driving the first door body 11 to open or close.

[0053] In other embodiments of the present application, the driving unit 21 may also be a linear motor, the housing of the linear motor may be fixed to the vehicle body 100 and hinged, and the motor shaft of the linear motor may be hinged to the first door body 11 .

[0054] Optionally, refer to Figure 1 and Figure 2There are multiple balancing bars 3, which are spaced apart along the left-right direction of the vehicle. The multiple balancing bars 3 are disposed between the vehicle body 100 and the first door body 11. When the first door body 11 is opened, the first elastic member 33 in each balancing bar 3 is stretched, providing damping for the first door body 11 and reducing the sound or vibration caused by the first door body 11 opening too quickly. When the first door body 11 is closed, the first elastic member 33 in each balancing bar 3 contracts, generating a pulling force for the first door body 11, providing assistance to the drive unit 21 and reducing the load on the drive unit 21.

[0055] Optionally, refer to Figure 1 and Figure 2 There are two balance bars 3 and include a first balance bar 313 and a second balance bar 323. The two ends of the first elastic member 33 of the first balance bar 313 are connected to the left end of the first door body 11 and the left end of the vehicle body 100, and the two ends of the first elastic member 33 of the second balance bar 323 are connected to the right end of the first door body 11 and the right end of the vehicle body 100.

[0056] When the first door body 11 is opened, the first elastic members 33 in the first balance bar 313 and the second balance bar 323 are stretched, providing damping for the first door body 11 and reducing the sound or vibration caused by the first door body 11 opening too quickly; when the first door body 11 is closed, the first elastic members 33 in the first balance bar 313 and the second balance bar 323 are contracted, generating tension for the first door body 11, providing assistance to the driving part 21 and reducing the load on the driving part 21.

[0057] Optionally, refer to Figure 1 and Figure 2 Drive assembly 2 is positioned between first balance bar 313 and second balance bar 323 along the left-right direction of the vehicle. The minimum distance between drive assembly 2 and first balance bar 313 is the same as the minimum distance between drive assembly 2 and second balance bar 323. Positioning drive assembly 2 between first balance bar 313 and second balance bar 323 evenly distributes force on both sides of drive assembly 2, reducing the load on drive assembly 2 and extending its service life.

[0058] Optionally, refer to Figure 4The balance bar 3 also includes an inner tube 34 and an outer tube 35. The outer tube 35 is sleeved on the inner tube 34 and hinged to the first door body 11. The inner tube 34 is hinged to the vehicle body 100. One end of the first elastic member 33 is connected to the vehicle body 100 through the inner tube 34, and the other end of the first elastic member 33 is connected to the first door body 11 through the outer tube 35. When the first door body 11 opens, it drives the outer tube 35 to move relative to the inner tube 34. The outer tube 35 drives the first elastic member 33 to stretch, creating a damping effect on the opening of the first door body 11. When the first door body 11 closes, the first door body 11 pushes the outer tube 35 to move relative to the inner tube 34. At the same time, the first elastic member 33 pulls the outer tube 35 to move relative to the inner tube 34, providing assistance for closing the first door body 11 and reducing the load on the drive unit 21.

[0059] Specifically, the inner conduit 34 includes a first central portion 344 and a first portion 345 sleeved around the first central portion 344, with a cavity defined between the first portion 345 and the first central portion 344. The outer conduit 35 includes a second central portion 354 and a second portion 355 sleeved around the second central portion 354, with a cavity defined between the second central portion 354 and the second portion 355. The second central portion 354 sleeves around the first central portion 344, and the second portion 355 sleeves around the first portion 345. The first portion 345 is adjacent to the second portion 355, and the first central portion 344 is adjacent to the second central portion 354. A receiving cavity is formed between the first portion 345 and the second portion 354. The first elastic member 33 is disposed within the receiving cavity, with one end of the first elastic member 33 connected between the second portion 355 and the second central portion 354 of the outer conduit 35, and the other end of the first elastic member 33 connected between the first portion 345 and the first central portion 344 of the inner conduit 34.

[0060] Optionally, the inner conduit 34 has a first end 342 and a second end 343. The first end 342 is hinged to the vehicle body 100, and the second end 343 is provided with a first stopper 341 protruding from the outer circumferential wall of the inner conduit 34. The outer conduit 35 has a third end 352 and a fourth end 352. The third end 352 is hinged to the first door body 11, and the fourth end 352 is provided with a second stopper 351 protruding from the inner circumferential wall of the outer conduit 35. Along the axial direction of the stabilizer bar 3, the projections of the first stopper 341 and the second stopper 351 at least partially overlap. When the first stopper 341 and the second stopper 351 abut along the axial direction of the stabilizer bar 3, further movement of the outer conduit 35 relative to the inner conduit 34 is restricted.

[0061] The inner conduit 34 has a first end 342 and a second end 343. The first end 342 is hinged to the vehicle body 100, and the outer circumferential wall of the second end 343 is provided with a first stopper 341. The outer conduit 35 has a third end 352 and a fourth end 353. The third end 352 is hinged to the first door body 11, and the inner circumferential wall of the fourth end 353 is provided with a second stopper 351. When the first door body 11 is opened, the first stopper 341 and the second stopper 351 abut against each other. The first elastic member 33 is connected to the first end 342 and the third end 352, respectively. When the first door body 11 is opened, relative displacement occurs between the inner conduit 34 and the outer conduit 35, causing the first elastic member 33 to stretch. When the first door body 11 is fully opened, the first stopper 341 and the second stopper 351 abut against each other along the axial direction of the first elastic member 33, limiting further expansion of the inner and outer conduits 34 and 35. In other words, the first limiting member 341 and the second limiting member 351 limit the continued stretching of the first elastic member 33 along the axial direction of the balance pole 3 , thereby limiting the maximum extension length of the balance pole 3 .

[0062] In the axial direction of the balance bar 3, the projections of the first stopper 341 and the second stopper 351 at least partially overlap. That is, in the radial direction of the balance bar 3, the height of the first stopper 341 protruding from the outer circumferential wall of the inner tube 34 and the height of the second stopper 351 protruding from the inner circumferential wall of the outer tube 35 can be the same; alternatively, the height of the first stopper 341 protruding from the outer circumferential wall of the inner tube 34 can be greater than the height of the second stopper 351 protruding from the inner circumferential wall of the outer tube 35; alternatively, the height of the first stopper 341 protruding from the outer circumferential wall of the inner tube 34 can be less than the height of the second stopper 351 protruding from the inner circumferential wall of the outer tube 35. In this application, there is no restriction on the height of the first limiting member 341 protruding from the outer peripheral wall of the inner tube 34 and the height of the second limiting member 351 protruding from the inner peripheral wall of the outer tube 35. As long as the first limiting member 341 and the second limiting member 351 can limit the continued stretching of the first elastic member 33 along the axial direction of the balance rod 3, limit the continued relative movement of the inner tube 34 and the outer tube 35, and limit the maximum extension length of the balance rod 3, it will be sufficient.

[0063] In the present application, the second sleeve 23 is hinged to the vehicle body 100 via the second ball-and-socket assembly 5. The drive motor 211 is disposed within the second sleeve 23 and drives the screw 212 to rotate via the reducer 213. The rotation of the screw 212 drives the first nut 222 to produce axial displacement along the axial direction of the screw 212. The movement of the first nut 222 drives the linear movement of the first sleeve 221. Because the first sleeve 221 is connected to the first door body 11 via the first ball-and-socket assembly 4, the movement of the first sleeve 221 drives the first door body 11 to open or close.

[0064] The inner conduit 34 is hinged to the vehicle body 100 via a third ball-and-socket assembly, while the outer conduit 35 is hinged via a fourth ball-and-socket assembly. During the opening of the first door 11, the drive motor 211 rotates the screw rod 212, which in turn drives the first sleeve 221 via the first nut 222. The first sleeve 221 pushes the upper edge of the first door 11 outward. Simultaneously, the outer conduit 35 moves with the first door 11, causing relative movement between the outer conduit 35 and the inner conduit 34. This movement of the outer conduit 35 stretches the first elastic member 33, which provides damping for the first door 11. When the second stopper 351 of the outer conduit 35 abuts the first stopper 341 of the inner conduit 34, the first elastic member 33 ceases stretching. When the first door body 11 is closed, the drive motor 211 reverses, and the drive motor 211 drives the screw rod 212 to drive the first nut 222 to retract, the first nut 222 pulls the first sleeve 221 to move, and the first sleeve 221 pulls the first door body 11 to close; at the same time, the outer guide tube 35 retracts with the first door body 11, and the first elastic member 33 contracts under the action of the restoring force, providing assistance to the drive motor 211 and reducing the load of the drive motor 211.

[0065] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0066] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0067] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

[0068] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A vehicle, characterized in that: include: body; The tailgate includes a first door body and a second door body, wherein the first door body is located below the second door body in a vertical direction, and both the first door body and the second door body are rotatably arranged on the vehicle body; a driving assembly comprising a driving portion and a transmission portion connected to each other, wherein the driving portion is hinged to the vehicle body, the transmission portion is hinged to the first door body, and the transmission portion is adapted to translate relative to the driving portion under the drive of the driving portion; The balancing bar includes a first elastic member, one end of the first elastic member is connected to the first door body, and the other end of the first elastic member is connected to the vehicle body.

2. The vehicle according to claim 1, characterized in that The driving part includes a driving motor and a screw rod, and the motor shaft of the driving motor is connected to the screw rod; The transmission part is constructed as a movable sleeve, which is sleeved on the screw rod and threadably matched with the screw rod, and the movable sleeve is hinged to the first door body.

3. The vehicle according to claim 2, characterized in that The movable sleeve includes a first sleeve and a first nut. The first sleeve is sleeved on the screw rod. The first nut is fixed to the first sleeve and is threadedly matched with the screw rod. The first sleeve is hinged to the first door body.

4. The vehicle according to claim 3, characterized in that The driving assembly further includes a second sleeve, which is sleeved on the first sleeve and fixed to the driving motor.

5. The vehicle according to claim 1, wherein: The driving part includes a cylinder and a piston, and the piston is movably arranged in the cylinder; The transmission part is constructed as a connecting rod, one end of the connecting rod is connected to the piston, and the other end of the connecting rod is hinged to the first door body.

6. The vehicle according to claim 5, characterized in that The cylinder body is a hydraulic cylinder body or a pneumatic cylinder body.

7. The vehicle according to claim 1, wherein: There are multiple balance bars, and the multiple balance bars are arranged at intervals along the left and right directions of the vehicle.

8. The vehicle according to claim 7, characterized in that There are two balance bars including a first balance bar and a second balance bar, the two ends of the first elastic member of the first balance bar are connected to the left end of the first door body and the left end of the vehicle body, and the two ends of the first elastic member of the second balance bar are connected to the right end of the first door body and the right end of the vehicle body.

9. The vehicle according to claim 1, wherein: The balancing rod further comprises an inner conduit and an outer conduit, wherein the outer conduit is sleeved on the inner conduit, the outer conduit is hinged to the first door body, and the inner conduit is hinged to the vehicle body; One end of the first elastic member is connected to the vehicle body through the inner conduit, and the other end of the first elastic member is connected to the first door body through the outer conduit.

10. The vehicle according to claim 9, characterized in that The inner duct has a first end and a second end, the first end is hinged to the vehicle body, and the second end is provided with a first limit piece protruding from the outer peripheral wall of the inner duct; the outer duct has a third end and a fourth end, the third end is hinged to the first door body, and the fourth end is provided with a second limit piece protruding from the inner peripheral wall of the outer duct, and along the axial direction of the balance bar, the projections of the first limit piece and the second limit piece at least partially overlap.

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