Back door framework assembly and vehicle

Abstract

The utility model provides a back door framework assembly and a vehicle, and belongs to the technical field of vehicle back doors, the back door framework assembly comprises a back door, a guide rail, two groups of lifting rod devices and a sliding driving device, the openness of a trunk is higher, a user can conveniently take amplified objects after the back door is opened, the back door can be opened and closed under the condition that the rear space of the vehicle is narrow, and the back door framework assembly is convenient to use. And the application scene is wider. And by arranging the travel switch, the door opening and closing actions are more intelligent and smoother. The travel switch is designed in an embedded manner, and the adjusting through hole is formed, so that the travel switch is effectively protected on the premise that the function of the travel switch is not affected. The elastic piece is arranged between the switch main body of the travel switch and the toggle, so that the toggle has a self-resetting function, and the travel switch is more convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle tailgate technology, specifically relating to a tailgate structure assembly and a vehicle. Background Technology

[0002] In hatchback vehicles such as SUVs, the tailgate opening mechanism often adopts a liftback design. This means the top of the tailgate is hinged to the body, with struts on both sides. The tailgate opens upwards as a whole, and the struts ultimately fix the opening angle. The advantage of this opening method is its simple structure and low manufacturing cost. However, because the tailgate obstructs the view of the trunk after opening, the accessibility of the trunk is affected, making it inconvenient to load and unload large items. Furthermore, the liftback design requires a certain amount of rear space to open; if the rear space is limited, the opening process becomes difficult. Utility Model Content

[0003] This utility model provides a tailgate structure assembly and vehicle, aiming to solve the problems in the prior art where the tailgate affects the openness of the trunk to a certain extent after opening, and the opening process requires a large opening space, thus limiting the usage scenarios.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, embodiments of the present invention provide a rear tailgate frame assembly, comprising:

[0006] Rear door;

[0007] The guide rail is located on the top of the side panel assembly and extends along the top outline of the side panel assembly;

[0008] Two sets of lifting rod devices are distributed along the long axis of the guide rail. The sliding end of the lifting rod device located on the front side is slidably connected to the guide rail, and the hinge end is hinged to the front part of the rear door side. The sliding end of the lifting rod device located on the rear side is slidably connected to the guide rail, and the hinge end is hinged to the rear part of the rear door side.

[0009] The two sets of lifting rod devices have a folded state and an extended state. In the folded state, the tailgate is closed and the hinged ends of both sets of lifting rod devices are tilted backward. In the extended state, the tailgate is raised to a position higher than the ceiling.

[0010] The sliding drive device is connected to the two sets of lifting rod devices respectively, so as to drive the lifting rod devices to reciprocate along the guide rail.

[0011] Compared with the prior art, the solution shown in this application embodiment has the following advantages: when the tailgate is closed, both sets of lifting rod devices are in a folded state, and the hinged ends of the lifting rod devices are tilted backward. When it is necessary to open the door, the lifting rod devices are controlled to switch from the folded state to the extended state. After switching to the extended state, the tailgate is higher than the roof. Then, the two sets of lifting rod devices are driven forward along the guide rail by the sliding drive device until the tailgate moves above the roof. The reverse operation can realize the closing operation. This application enables the tailgate to achieve a lifting and then sliding opening process. After the tailgate is opened, there is basically no obstruction to the space above the trunk, and the trunk is more open. Users can place items of various heights in the trunk after the tailgate is opened, making it more convenient to retrieve large items. In addition, the rear space required for the tailgate to rise and fall during the opening and closing process is very small, which can enable the opening and closing of the tailgate even in the case of narrow rear space, making it applicable to a wider range of scenarios.

[0012] In conjunction with the first aspect, in one possible implementation, the lifting rod device includes a lifting rod, a sliding seat, a hinge seat, and a limit switch; one end of the lifting rod is hinged to the sliding seat, which forms the sliding end; the other end of the lifting rod is hinged to the hinge seat, which is located on the tailgate; the limit switch is located on the sliding seat, and during the switching of the lifting rod's state, the lifting rod can trigger the limit switch, which is communicatively connected to the sliding drive device. The sliding seat provides a stable sliding base for the entire lifting rod device, and the hinge seat forms a flexible connection between the lifting rod and the tailgate, facilitating adjustment of the lifting rod and tailgate's posture during lifting or lowering. The overall structure of the lifting rod device is simple and easy to use; the limit switch makes the door opening and closing action more intelligent and smoother.

[0013] In some embodiments, the limit switch is embedded in the sliding seat, which has an adjustment through hole. The adjustment through hole is an oblong hole through which the limit switch's knob passes. The lifting rod can actuate the knob during state switching. The embedded design of the limit switch better protects it from direct contact with the lifting rod. An adjustment through hole is provided to allow the knob to pass through so that the lifting rod can contact the knob. During the transition from a folded to an extended state, the lifting rod pushes the knob. When the knob reaches the front end of the adjustment through hole, the limit switch generates a sliding command. The sliding drive device then drives the tailgate forward according to the travel command.

[0014] In some embodiments, an elastic element is provided between the switch body of the limit switch and the toggle switch. The toggle switch has a first trigger state and a second trigger state. When the lifting rod is in the folded state, the toggle switch is in the first trigger state; when the lifting rod is in the extended state, the toggle switch is in the second trigger state. The elastic element is configured with a preload force to keep the toggle switch in the first trigger state. The elastic element enables the toggle switch to have a self-resetting function, making it more convenient to use.

[0015] In some embodiments, the limit switch is provided on the sliding seat of the lifting rod device located on the front side. Since the front lifting rod device and the rear lifting rod device operate synchronously, setting a limit switch on one lifting rod device can effectively achieve automated status sensing, resulting in low operating costs.

[0016] In some embodiments, the limit switch is provided on the sliding seat of the lifting rod device located on the rear side. Since the front and rear lifting rod devices operate synchronously, setting a limit switch on one lifting rod device can effectively achieve automated status sensing, resulting in lower operating costs. Of course, having limit switches on the sliding seats of both the front and rear lifting rod devices provides more accurate sensing.

[0017] In conjunction with the first aspect, in one possible implementation, the sliding seat and the guide rail are distributed along the left-right direction. The sliding seat has a drive protrusion on the side facing the guide rail, and the guide rail has a drive groove. The drive protrusion and the drive groove are slidably adapted to each other. The sliding drive device is a flexible shaft sliding drive device, whose drive end passes through the drive groove and connects to the drive protrusion. The left-right distribution of the sliding seat and the guide rail can reduce the vertical dimension and avoid affecting the opening and closing of the tailgate. The cooperation between the drive protrusion and the drive groove not only makes the sliding cooperation between the sliding seat and the guide rail more stable, but also effectively realizes the connection with the sliding drive device.

[0018] In conjunction with the first aspect, in one possible implementation, a limiting support device is provided on the same guide rail between the front lifting rod device and the rear lifting rod device. The limiting support device limits the distance between the two sets of lifting rod devices. The limiting support device maintains the synchronicity of the movement of the front and rear lifting rod devices, ensuring smooth raising and lowering of the tailgate.

[0019] In some embodiments, in order to simplify the structure of the limiting support device and avoid affecting the operation of the lifting rod device, the limiting support device includes a support rod, the front end of which is hinged to the lifting rod device located on the front side, and the rear end of which is hinged to the lifting rod device located on the rear side.

[0020] Secondly, this utility model embodiment also provides a vehicle including the aforementioned tailgate structure assembly.

[0021] Compared with the prior art, the solution shown in this application embodiment, by adopting the above-mentioned tailgate structure assembly, enables the tailgate to achieve an opening process of first lifting and then sliding forward. After the tailgate is opened, there is basically no obstruction to the space above the trunk, and the trunk has greater openness. Users can place items of various heights in the trunk after the tailgate is opened, making it more convenient to retrieve large items. In addition, the rear space required for the tailgate to rise and fall during the opening and closing process is very small, and the tailgate can be opened and closed even in situations where the rear space is narrow, making it applicable to a wider range of scenarios and improving the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the usage state of the rear tailgate frame assembly provided in Embodiment 1 of this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the usage state of the rear tailgate frame assembly provided in Embodiment 1 of this utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the usage state of the rear tailgate frame assembly provided in Embodiment 1 of this utility model. Figure 3 ;

[0025] Figure 4 A cross-sectional view of the guide rail and sliding seat provided in Embodiment 2 of this utility model;

[0026] Figure 5 The lifting rod and the toggle switch are in the following configuration as described in Embodiment 3 of this utility model. Figure 1 ;

[0027] Figure 6 The lifting rod and the toggle switch are in the following configuration as described in Embodiment 3 of this utility model. Figure 2 ;

[0028] Figure 7 The lifting rod and the toggle switch are in the following configuration as described in Embodiment 3 of this utility model. Figure 3 ;

[0029] Figure 8 The lifting rod and the toggle switch are in the following configuration as described in Embodiment 3 of this utility model. Figure 4 ;

[0030] Figure 9 for Figure 1 Enlarged view of part A;

[0031] Figure 10 for Figure 2Enlarged view of part B;

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Rear door; 2. Guide rail; 201. Drive slide rail; 3. Lifting rod device; 310. Lifting rod; 311. Connecting rod; 312. Actuating rod; 313. Elastic sheet; 314. Alternating groove; 315. Accommodation space; 320. Sliding seat; 3201. Adjustment through hole; 3202. Limiting groove; 321. Drive protrusion; 330. Hinge seat; 331. Rear door seat body; 332. Rod seat body; 340. Limit switch; 341. Toggle switch; 4. Ceiling. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0036] In the claims, description, and accompanying drawings of this utility model, the terms "upper" and "lower" refer to the vertical direction of the vehicle body; the terms "front" and "rear" refer to the front-rear direction of the vehicle body; the terms "left" and "right" refer to the left-right direction of the vehicle body; the term "inner" refers to the direction towards the plane containing the front-rear center axis and the upper-lower center axis of the vehicle body; and the term "outer" refers to the direction away from the plane containing the front-rear center axis and the upper-lower center axis of the vehicle body. Other directional terms, unless otherwise explicitly defined, such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "clockwise," "counterclockwise," "high," and "low," are used to indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings. These are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the specific scope of protection of this utility model.

[0037] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0038] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0039] Please refer to the following: Figures 1 to 3 The rear door frame assembly provided by this utility model will now be described. The rear door frame assembly includes a rear door 1, a guide rail 2, two sets of lifting rod devices 3, and a sliding drive device; the guide rail 2 is located on the top of the side panel assembly and extends along the top contour line of the side panel assembly; the two sets of lifting rod devices 3 are distributed along the long axis of the guide rail 2, with the sliding end of the front lifting rod device 3 slidably connected to the guide rail 2 and the hinged end hinged to the front part of the side of the rear door 1, and the sliding end of the rear lifting rod device 3 slidably connected to the guide rail 2 and the hinged end hinged to the rear part of the side of the rear door 1; the two sets of lifting rod devices 3 have a folded state and a raised state. In the folded state, the rear door 1 is closed, and the hinged ends of both sets of lifting rod devices 3 are tilted backward (e.g., Figure 1 As shown); in the supported state, the rear door 1 is raised to a position higher than the roof 4 (as shown). Figure 2 (As shown); the sliding drive device is connected to the two sets of lifting rod devices 3 respectively, so as to drive the lifting rod devices 3 to move back and forth along the guide rail 2.

[0040] In this embodiment, a lifting rod device 3 is respectively installed on the left and right sides of the front of the tailgate 1, and these two lifting rod devices 3 form a group. Similarly, a lifting rod device 3 is respectively installed on the left and right sides of the rear of the tailgate 1, and these two lifting rod devices 3 form a group. By setting four lifting rod devices 3, the tailgate 1 can be stably raised, lowered, and slid, achieving the simplest structure while ensuring reliability.

[0041] Compared with the prior art, the tailgate frame assembly provided in this embodiment, when the tailgate 1 is closed, has two sets of lifting rod devices 3 in a folded state, with the hinged ends of the lifting rod devices 3 tilted backward. When the door needs to be opened, the lifting rod devices 3 are controlled to switch from the folded state to the extended state. After switching to the extended state, the tailgate 1 is higher than the roof 4. Subsequently, the sliding drive device drives the two sets of lifting rod devices 3 to move forward along the guide rail 2 until the tailgate 1 moves above the roof 4 (e.g., ...). Figure 3 (As shown); the closing operation can be achieved by reversing the operation. This embodiment enables the tailgate 1 to open by first lifting and then sliding forward. After the tailgate 1 is opened, it basically does not obstruct the space above the trunk, making the trunk more open. Users can place items of various heights in the trunk after the tailgate 1 is open, making it more convenient to retrieve large items. In addition, the rear space required for the tailgate 1 to rise and fall during the opening and closing process is very small, so the tailgate 1 can be opened and closed even in situations with limited rear space, making it applicable to a wider range of scenarios.

[0042] In some embodiments, see Figures 1 to 3 , Figure 9 and Figure 10 The lifting rod device 3 includes a lifting rod 310, a sliding seat 320, a hinge seat 330, and a limit switch 340. One end of the lifting rod 310 is hinged to the sliding seat 320, forming a sliding end. The other end of the lifting rod 310 is hinged to the hinge seat 330, which is located on the rear door 1. The limit switch 340 is located on the sliding seat 320. During the switching of the lifting rod 310's state, the lifting rod 310 can trigger the limit switch 340, which is communicatively connected to the sliding drive device. The sliding seat 320 provides a stable sliding base for the entire lifting rod device 3, and the hinge seat 330 forms a flexible connection between the lifting rod 310 and the rear door 1, facilitating the adjustment of the lifting rod 310 and the rear door 1's posture during lifting or lowering. The lifting rod device 3 has a simple overall structure and is easy to use. The limit switch 340 makes the opening and closing action more intelligent and smoother. Optionally, the lifting rod 310 of the lifting rod device 3 located on the front side is approximately the same length as the lifting rod 310 of the lifting device located on the rear side, so that the tailgate 1 is raised to be approximately parallel to the opening surface of the trunk. After moving above the roof 4, the tailgate 1 can also be closer to the roof 4, avoiding taking up too much space above the roof 4.

[0043] Optional, see Figure 4 The sliding seat 320 has a limiting groove 3202 on the side facing the guide rail 2. The limiting groove 3202 is a C-shaped groove. The guide rail 2 is placed in the limiting groove 3202. The limiting groove 3202 can effectively limit the displacement of the sliding seat 320 in the circumferential direction of the guide rail 2, preventing the sliding seat 320 from rotating or falling off the guide rail 2. During installation, the sliding seat 320 needs to be inserted from the rear end of the guide rail 2. After sliding along the guide rail 2 to the designated position, the lifting rod 310 on the sliding seat 320 is connected to the hinge seat 330 provided on the rear door 1.

[0044] In some embodiments, see Figure 9 and Figure 10The limit switch 340 is embedded in the sliding seat 320, which has an adjustment through hole 3201. The adjustment through hole 3201 is an oblong hole, and the dial 341 of the limit switch 340 passes through the adjustment through hole 3201. The lifting rod 310 can move the dial 341 during the switching process. The embedded design of the limit switch 340 can better protect the limit switch 340 and prevent it from directly hitting the lifting rod 310. To allow the lifting rod 310 to touch the dial 341, the adjustment through hole 3201 is provided so that the dial 341 can pass through. During the switching process from the folded state to the open state, the lifting rod 310 pushes the dial 341 to move. When the dial 341 moves to the front end of the adjustment through hole 3201, the limit switch 340 generates a sliding command. The sliding drive device drives the tailgate 1 to slide forward according to the travel command until it reaches the desired position. Figure 10 The state shown.

[0045] In some embodiments, the lifting rod device 3 further includes a lifting drive assembly, which is disposed between the sliding seat 320 and the lifting rod 310, for driving the lifting rod 310 to swing back and forth.

[0046] The implementation methods of the lift-driven component include, but are not limited to, the following:

[0047] 1) The lifting drive assembly includes a lifting driver, a lifting drive gear, and a lifting driven gear. The lifting driver is mounted on the sliding seat 320, and its output shaft is perpendicular to the lifting rod 310. The lifting drive gear is mounted on the output shaft of the lifting driver, and the lifting driven gear is mounted on the lifting rod 310. The lifting drive gear meshes with the lifting driven gear to achieve gear transmission, thereby controlling the rotation of the lifting rod 310 through the lifting driver, thus switching the state of the lifting rod 310. The lifting driver can be implemented using, but is not limited to, a servo motor.

[0048] 2) The lifting drive assembly includes a lifting driver, a lifting worm gear, and a lifting worm. The lifting driver is mounted on the sliding seat 320, and its output shaft is in the same vertical plane as the lifting rod 310. The lifting worm is mounted on the output shaft of the lifting driver, and the lifting worm gear is mounted on the lifting rod 310. The lifting worm gear meshes with the lifting worm to achieve worm gear transmission, thereby controlling the rotation of the lifting rod 310 through the lifting driver, thus switching the state of the lifting rod 310. The lifting driver can be implemented using, but is not limited to, a servo motor.

[0049] 3) The lifting drive assembly includes a lifting driver, a lifting drive sprocket, a lifting driven sprocket, and a lifting chain. The lifting driver is mounted on the sliding seat 320, and its output shaft is perpendicular to the lifting rod 310. The lifting drive sprocket is mounted on the output shaft of the lifting driver, and the lifting driven sprocket is mounted on the lifting rod 310. The lifting chain is wound between the lifting drive sprocket and the lifting driven sprocket to achieve chain drive. The lifting driver then controls the rotation of the lifting rod 310, thus switching the state of the lifting rod 310. The lifting driver can be implemented using, but is not limited to, a servo motor.

[0050] In some embodiments, the hinge seat 330 includes a tailgate seat 331 and a rod seat 332. The tailgate seat 331 is connected to the tailgate 1, and the rod seat 332 is connected to the lifting rod 310. The tailgate seat 331 and the rod seat 332 are rotatably connected, and the pivot is parallel to the left and right direction, thereby realizing the hinge between the tailgate 1 and the lifting rod 310. A hinge limiting assembly is provided between the tailgate seat 331 and the lever seat 332. The hinge limiting assembly includes a hinge driver, a hinge drive gear, and a hinge driven gear. The hinge driver is located on the tailgate seat 331, the hinge drive gear is located on the output shaft of the hinge driver, and the hinge driven gear is located on the lever seat 332. The hinge drive gear and the hinge driven gear mesh with each other, thereby controlling the angle between the lifting lever 310 and the tailgate 1 through the hinge driver. During the lifting or lowering of the tailgate 1, it cooperates with the lifting drive assembly to keep the tailgate 1 basically parallel to the trunk opening, making the opening and closing action smoother.

[0051] Optionally, the toggle switch 341 has a first trigger state and a second trigger state. When the lifting rod 310 is in the folded state, the toggle switch 341 is in the first trigger state; when the lifting rod 310 is in the extended state, the toggle switch 341 is in the second trigger state. Based on this, with the lifting drive assembly and the hinge limit assembly configured, the limit switch 340 is communicatively connected to both the lifting drive assembly and the hinge limit assembly. The control logic of the limit switch 340 is as follows:

[0052] During the opening process, the lifting drive assembly and the hinge limit assembly are always in operation to switch the lifting rod device 3 from the folded state to the extended state. During the state switching process of the lifting rod device 3, the lifting rod 310 pushes the dial 341 to move. When the dial 341 moves to the front end of the adjustment hole 3201 and is in the second trigger state, the limit switch 340 generates the first stop command and the first slide command. The lifting drive assembly and the hinge limit assembly stop operating according to the first stop command, and the slide drive device drives the tailgate 1 to slide forward according to the first slide command.

[0053] During the closing process, the lifting lever device 3 remains in the supported state, and the sliding drive device drives the tailgate 1 to slide backward. After moving to the position corresponding to the trunk opening, the sliding drive device stops operating. Subsequently, the lifting drive assembly and the hinge limit assembly start operating, switching from the supported state to the folded state. The lifting lever 310 gradually moves away from the dial 341, and the dial 341 returns to the first trigger state. When the tailgate 1 is completely closed, the state switching of the lifting lever device 3 is completed, and the lifting drive assembly and the hinge limit assembly stop operating.

[0054] The commands for switching between folded and unfolded states can be generated by control modules such as remote control and vehicle buttons.

[0055] Optionally, when the lifting rod 310 is in the folded state, the toggle switch 341 is in the first trigger state, and the distance between the lifting rod 310 and the toggle switch 341 is less than 0.1mm. In this way, the toggle switch 341 being in the first trigger state is equivalent to the lifting rod 310 being in the folded state. During the closing process, the toggle switch 341 returning to the first trigger state can stop the lifting drive component and the hinge limit component from operating, making the control logic simpler.

[0056] In some embodiments where the limit switch 340 is adapted to the lifting rod 310, see [reference needed]. Figure 9 and Figure 10 A spring element is provided between the switch body of the limit switch 340 and the toggle switch 341. The toggle switch 341 has a first trigger state and a second trigger state. When the lifting rod 310 is in the folded state, the toggle switch 341 is in the first trigger state; when the lifting rod 310 is in the extended state, the toggle switch 341 is in the second trigger state. The spring element is configured with a preload force to keep the toggle switch 341 in the first trigger state. The spring element enables the toggle switch 341 to have a self-resetting function, making it more convenient to use. The spring element can be implemented in ways including but not limited to springs, rubber blocks, etc., and is not the only one specified here.

[0057] In other embodiments where the limit switch 340 is adapted to the lifting rod 310, see [reference needed]. Figure 5The lifting rod 310 has a connecting rod 311, a toggle rod 312, and an elastic plate 313 on its side. The connecting rod 311 is an L-shaped rod, one end of which is connected to the side of the lifting rod 310 and forms an opening opposite to the hinge end of the relief groove 314 between the connecting rod 310 and the lifting rod 310. The other end of the connecting rod 311 is rotatably connected to the toggle rod 312. The toggle rod 312 and the lifting rod 310 form an accommodating space 315, which is connected to the relief groove 314. The width of the accommodating space 315 is not less than twice the diameter of the toggle button 341. The length of the toggle rod 312 is approximately the same as the diameter of the toggle button 341. An elastic plate 313 is also provided on the end of the connecting rod 311 near the toggle rod 312. The elastic plate 313 contacts the side of the toggle rod 312 opposite to the accommodating space 315. When switching from the folded state to the extended state, the lever 312 first contacts the dial 341 of the limit switch 340. The lever 312 is not restricted by the elastic piece 313 and swings towards the lifting rod 310 under the pressure of the dial 341. Figure 6 As shown; after the toggle switch 341 contacts the lifting lever 310, its squeezing effect on the actuating lever 312 disappears, and the actuating lever 312 falls under the action of gravity, and the toggle switch 341 is placed in the receiving space 315 (as shown). Figure 7 As shown), the lifting lever 310 can swing further to actuate the dial 341, switching the dial 341 from a first trigger state to a second trigger state. When switching from the extended state to the folded state, as the lifting lever 310 begins to move away from the dial 341, the actuating lever 312 gradually approaches the dial 341. When the actuating lever 312 contacts the dial 341, it pushes the dial 341 to switch from the second trigger state to the first trigger state. During this process, the elastic sheet 313 prevents the actuating lever 312 from swinging away from the lifting lever 310 (e.g., ...). Figure 8 As shown), the toggle switch 341 is then activated. After the toggle switch 341 is switched to the first trigger state, the toggle switch 341 can no longer move. As the lifting rod 310 moves further toward the folded state, the squeezing force of the toggle switch 341 on the lever 312 overcomes the elastic force of the elastic piece 313, and the lever 312 swings away from the lifting rod 310 until it disengages from the toggle switch 341.

[0058] In some specific embodiments, a limit switch 340 is provided on the sliding seat 320 of the lifting rod device 3 located on the front side, or a limit switch 340 is provided on the sliding seat 320 of the lifting rod device 3 located on the rear side. Since the front lifting rod device 3 and the rear lifting rod device 3 operate synchronously, setting a limit switch 340 on one lifting rod device 3 can effectively realize automated status sensing, resulting in low operating costs.

[0059] In other specific embodiments, see Figures 1 to 3Limit switches 340 are provided on the sliding seat 320 in the lifting rod device 3 on the front side and on the sliding seat 320 in the lifting rod device 3 on the rear side, so that the sensing is more accurate.

[0060] In some embodiments, see Figure 4 The sliding seat 320 and the guide rail 2 are distributed in the left-right direction, reducing the size in the up-down direction to avoid affecting the opening and closing of the tailgate 1. Based on this, in order to connect with the sliding drive device, the sliding seat 320 has a drive protrusion 321 on the side facing the guide rail 2, and the guide rail 2 has a drive groove 201. The drive protrusion 321 and the drive groove 201 are slidably adapted to each other. The sliding drive device is a flexible shaft sliding drive device, and its drive end passes through the drive groove 201 and is connected to the drive protrusion 321.

[0061] The following is an example of how a sliding drive device can be implemented:

[0062] 1) The sliding drive device is a flexible shaft drive device, in which the flexible shaft can bend and transmit power, and can connect to components that are not in the same direction as the main body of the flexible shaft drive device, so as to drive the target object to move. By using a flexible shaft drive device, the main body of the flexible shaft drive device can be flexibly set on the top of the vehicle body. For example, the main body of the flexible shaft drive device can be set at the front of the vehicle body, and the flexible shaft bends and extends along the edge of the roof 4 to the rear of the vehicle body, connecting with the sliding seat 320. This makes full use of the internal space of the roof 4, avoids affecting the movement of the sliding seat 320, and the flexible shaft can also drive the sliding seat 320 to reciprocate along the guide rail 2.

[0063] 2) The sliding drive device includes a drive motor, a drive gear connected to the output shaft of the drive motor, and a rack on the guide rail 2 and extending along the long axis of the guide rail 2. The drive motor is fixed on the sliding seat 320. The drive motor drives the drive gear to rotate, and the drive gear meshes with the rack, thereby realizing the forward and backward movement of the sliding seat 320.

[0064] 3) The sliding drive device includes a drive motor, a drive sprocket connected to the output shaft of the drive motor, and a chain extending back and forth on the guide rail 2. The drive motor is fixed on the sliding seat 320. The drive motor drives the drive sprocket to rotate, and the drive sprocket meshes with the chain, thereby realizing the back and forth movement of the sliding seat 320. A tensioning wheel is provided inside the guide rail 2, which is supported between the guide rail 2 and the chain to maintain a certain tension on the chain, facilitating engagement with the drive sprocket.

[0065] In some embodiments, a limiting support device is provided between the lifting rod device 3 located on the front side and the lifting rod device 3 located on the rear side on the same guide rail 2. The limiting support device is used to limit the distance between the two sets of lifting rod devices 3, maintain the synchronicity of the movement of the lifting rod devices 3 on the front and rear sides, and ensure that the rear door 1 rises and falls smoothly.

[0066] Specifically, to simplify the structure of the limiting support device and avoid affecting the operation of the lifting rod device 3, the limiting support device includes a support rod. The front end of the support rod is hinged to the lifting rod device 3 located on the front side, and the rear end is hinged to the lifting rod device 3 located on the rear side. Optionally, the front and rear ends of the support rod are respectively hinged to the lifting rods 310 on the front and rear sides, or the front and rear ends of the support rod are respectively hinged to the sliding seats 320 on the front and rear sides.

[0067] Based on the same inventive concept, this application also provides a vehicle including the aforementioned tailgate structure assembly.

[0068] Compared with the prior art, the vehicle provided in this embodiment, by adopting the above-mentioned tailgate structure assembly, enables the tailgate 1 to achieve an opening process of first lifting and then sliding forward. After the tailgate 1 is opened, it basically does not obstruct the space above the trunk, and the trunk has greater openness. Users can place items of various heights in the trunk after the tailgate 1 is opened, making it more convenient to retrieve large items. In addition, the rear space required for the tailgate 1 to rise and fall during the opening and closing process is very small. The tailgate 1 can be opened and closed even in situations where the rear space is narrow, making it applicable to a wider range of scenarios and improving the user experience.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rear tailgate frame assembly, characterized in that, include: Rear door (1); The guide rail (2) is located on the top of the side panel assembly and extends along the top outline of the side panel assembly; Two sets of lifting rod devices (3) are distributed along the long axis of the guide rail (2). The sliding end of the lifting rod device (3) located on the front side is slidably connected to the guide rail (2), and the hinge end is hinged to the front part of the side of the rear door (1). The sliding end of the lifting rod device (3) located on the rear side is slidably connected to the guide rail (2), and the hinge end is hinged to the rear part of the side of the rear door (1). The two sets of lifting rod devices (3) have a folded state and a supported state. In the folded state, the back door (1) is closed and the hinged ends of the two sets of lifting rod devices (3) are tilted backward. In the supported state, the back door (1) is raised to a position higher than the ceiling (4). The sliding drive device is connected to the two sets of lifting rod devices (3) respectively to drive the lifting rod devices (3) to reciprocate along the guide rail (2).

2. The rear tailgate frame assembly as described in claim 1, characterized in that, The lifting rod device (3) includes a lifting rod (310), a sliding seat (320), a hinge seat (330), and a limit switch (340); one end of the lifting rod (310) is hinged to the sliding seat (320), and the sliding seat (320) forms the sliding end; the other end of the lifting rod (310) is hinged to the hinge seat (330), and the hinge seat (330) is located on the rear door (1); the limit switch (340) is located on the sliding seat (320), and during the switching state of the lifting rod (310), the lifting rod (310) can trigger the limit switch (340), and the limit switch (340) is communicatively connected to the sliding drive device.

3. The rear tailgate frame assembly as described in claim 2, characterized in that, The limit switch (340) is embedded in the sliding seat (320). The sliding seat (320) is provided with an adjustment through hole (3201). The adjustment through hole (3201) is an oblong hole. The dial (341) of the limit switch (340) is set through the adjustment through hole (3201). The lifting rod (310) can move the dial (341) during the switching process.

4. The rear tailgate frame assembly as described in claim 3, characterized in that, An elastic element is provided between the switch body of the limit switch (340) and the toggle switch (341). The toggle switch (341) has a first trigger state and a second trigger state. When the lifting rod (310) is in the folded state, the toggle switch (341) is in the first trigger state. When the lifting rod (310) is in the supported state, the toggle switch (341) is in the second trigger state. The elastic element is configured with a preload force to make the toggle switch (341) be in the first trigger state.

5. The rear tailgate frame assembly as described in claim 3, characterized in that, The limit switch (340) is provided on the sliding seat (320) of the lifting rod device (3) located on the front side.

6. The rear tailgate frame assembly as described in claim 3 or 5, characterized in that, The limit switch (340) is provided on the sliding seat (320) of the lifting rod device (3) located on the rear side.

7. The rear tailgate frame assembly as described in claim 2, characterized in that, The sliding seat (320) and the guide rail (2) are distributed in the left and right direction. The sliding seat (320) has a driving protrusion (321) on the side facing the guide rail (2). The guide rail (2) has a driving groove (201). The driving protrusion (321) and the driving groove (201) are slidably adapted to each other. The sliding drive device is a flexible shaft sliding drive device. Its driving end passes through the driving groove (201) and is connected to the driving protrusion (321).

8. The rear tailgate frame assembly as described in claim 1, characterized in that, On the same guide rail (2), a limiting support device is provided between the lifting rod device (3) located on the front side and the lifting rod device (3) located on the rear side. The limiting support device is used to limit the distance between the two sets of lifting rod devices (3).

9. The rear tailgate frame assembly as described in claim 8, characterized in that, The limiting support device includes a support rod, the front end of which is hinged to the lifting rod device (3) located on the front side, and the rear end of which is hinged to the lifting rod device (3) located on the rear side.

10. A vehicle, characterized in that, Includes the rear tailgate frame assembly as described in any one of claims 1-9.

Images