Back door assembly and vehicle
By designing front and rear lifting rod devices and a guide rail drive system, the tailgate can be opened and closed efficiently, solving the problems of traditional hatchback doors obstructing space and limiting parking, and improving the convenience of vehicle use.
Patent Information
- Application Number
- CN202423289093.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional hatchback tailgates obstruct the space above the trunk when opened, affecting usability and imposing more restrictions on vehicle parking.
The device employs front and rear lifting rods. By controlling the extension, retraction, and sliding of the lifting rods, the opening process of the back door body is achieved by first lifting and then sliding forward. After the back door body is fully opened above the ceiling, it provides virtually no obstruction to the space above. Combined with guide rails and a drive device, intelligent control is achieved.
The increased openness of the trunk makes it easier to load and unload large items, while also reducing restrictions on vehicle parking spaces and improving the vehicle's usability.
Smart Images
Figure CN223533311U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle tailgate technology, specifically relating to a tailgate assembly and a vehicle. Background Technology
[0002] The tailgate is an integral part of a vehicle, typically located at the rear, and is used to close the opening of the trunk. The tailgate provides storage and loading space; opening it allows for easy access to items in the trunk, facilitating the carrying of luggage and other goods. The tailgate also protects items inside the vehicle; when closed, it effectively safeguards the trunk from external view interference and theft risks. Furthermore, the design and appearance of the tailgate are part of the vehicle's overall style, influencing its visual appeal.
[0003] In hatchback vehicles such as SUVs, the tailgate often adopts a liftback design. When the tailgate is opened, it will block the space above the trunk opening area, which will hinder the loading and unloading of large items. In addition, the liftback tailgate requires a lot of rear space when opened, which limits the parking space of the vehicle and affects the convenience of use. Utility Model Content
[0004] This utility model provides a tailgate assembly and a vehicle, aiming to solve the problems of insufficient openness of traditional hatchback tailgates in the prior art after opening, and the many restrictions on parking space in order to meet the opening requirements.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] In a first aspect, embodiments of the present invention provide a tailgate assembly, comprising:
[0007] Back door main body;
[0008] The first guide rail is located on the top of the side panel assembly and extends along the top outline of the side panel assembly.
[0009] The front lifting rod device is a telescopic device that can extend and retract in the vertical direction. The fixed end of the front lifting rod device is slidably connected to the first guide rail, and the telescopic end is hinged to the front part of the side of the tailgate body. The front lifting rod device has a retracted state and an extended state. In the retracted state, the upper edge of the tailgate body is aligned with the upper edge of the trunk opening; in the extended state, the upper edge of the tailgate body extends upward above the roof.
[0010] The rear lifting rod device has one end slidably connected to the first guide rail and the other end movably connected to the rear of the side of the tailgate body. The rear lifting rod device has a folded state and a raised state. In the folded state, the lower edge of the tailgate body is aligned with the lower edge of the trunk opening; in the raised state, the lower edge of the tailgate body extends upward above the roof.
[0011] When the main body of the tailgate is closed, the front lifting rod device is in a retracted state, and the rear lifting rod device is in a folded state;
[0012] When the main body of the rear door is fully open, the main body of the rear door is located above the ceiling.
[0013] Compared with the prior art, the solution shown in this application embodiment has the following characteristics: when the tailgate body is closed, the front lifting rod device is in a retracted state, the rear lifting rod device is in a folded state, and the end of the rear lifting rod device that is movably connected to the tailgate tilts downwards and backwards. If it is necessary to open the door, the front lifting rod device is controlled to switch from a retracted state to an extended state, so that the upper edge of the tailgate body gradually rises. At the same time, the rear lifting rod device is controlled to switch from a folded state to a propped-up state, so that the lower edge of the tailgate body also gradually rises. The entire tailgate body flips upwards and rises. When the entire tailgate body is higher than the ceiling, the front lifting rod device and the rear lifting rod device move forward along the first guide rail simultaneously until the tailgate body is above the ceiling, and the door opening operation is completed. The reverse operation can realize the door closing operation. This application enables the tailgate body to open by first lifting and then sliding forward, and to close by moving forward and then lowering. After the tailgate body is opened, it basically does not obstruct the space above the trunk, making the trunk more open and easier to retrieve large items. At the same time, the opening and closing method of this application has low requirements for the space behind the vehicle, and the tailgate body can be opened and closed without a large space, thus reducing the restrictions on the vehicle parking space.
[0014] In conjunction with the first aspect, in one possible implementation, a second guide rail is provided on the side of the tailgate body, the second guide rail extends along the side line of the tailgate body, the rear lifting rod device includes a first rear slide, a rear support rod and a second rear slide, the first rear slide is slidably connected to the first guide rail, the second rear slide is slidably connected to the second guide rail, one end of the rear support rod is hinged to the first rear slide and the other end is hinged to the second rear slide.
[0015] In some embodiments, the tailgate assembly further includes a rear sliding drive and a rear lifting drive. The rear sliding drive is tractively connected to the first rear slide block to drive the first rear slide block to move back and forth along the first guide rail. The rear lifting drive is tractively connected to the second rear slide block to drive the second rear slide block to move back and forth along the second guide rail.
[0016] In some embodiments, the first rear slide block is provided with a limit switch. When the rear support rod swings to a position corresponding to the supported state, the rear support rod triggers the limit switch. The limit switch is communicatively connected to the rear sliding drive device and the rear lifting drive device, respectively.
[0017] In some embodiments, the limit switch is embedded in the first rear slide block, the first rear slide block is provided with an adjustment through hole, the adjustment through hole is an oblong hole, the dial of the limit switch is provided through the adjustment through hole, and the rear support rod can move the dial during the swinging process.
[0018] 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 rear support rod is in the position corresponding to the folded state, the toggle switch is in the first trigger state and the toggle switch is located at one end of the adjustment through hole. When the rear support rod is in the position corresponding to the extended state, the toggle switch is in the second trigger state and the toggle switch is located at the other end of the adjustment through hole. The elastic element is configured with a preload force to put the toggle switch in the first trigger state.
[0019] In conjunction with the first aspect, in one possible implementation, the front lifting rod device includes a front slide block, a front support rod, and a front hinge seat. The front slide block is slidably connected to the first guide rail, and the front hinge seat is located at the front of the side of the tailgate body. The front support rod is a telescopic rod, with its fixed end fixedly connected to the front slide block and its telescopic end hinged to the tailgate body via the front hinge seat.
[0020] In some embodiments, the tailgate assembly further includes a front sliding drive device, which is tractively connected to the front slide block to drive the front slide block to move back and forth along the first guide rail.
[0021] In some embodiments, the front hinged seat includes a tailgate seat body and a rod seat body. The tailgate seat body is fixedly connected to the tailgate body, and the rod seat body is fixedly connected to the telescopic end of the front support rod. The tailgate seat body and the rod seat body are hinged together. The tailgate seat body is provided with a limiting member. If the front lifting rod device is in the extended state and the rear lifting rod device is in the supported state, the limiting member abuts against the outer peripheral surface of the rod seat body to limit the upward tilt angle of the tailgate body.
[0022] Secondly, this utility model embodiment also provides a vehicle including the aforementioned tailgate assembly.
[0023] Compared with the prior art, the solution shown in this application embodiment, by adopting the above-mentioned tailgate assembly, has virtually no obstruction of the space above the trunk after the tailgate body is opened, the trunk has greater openness and is more convenient to take out large items; at the same time, the tailgate body can be opened and closed without a large space, so there are fewer restrictions on the vehicle parking space and the overall convenience of vehicle use is stronger. Attached Figure Description
[0024] Figure 1 A schematic diagram of the usage state of the tailgate assembly provided in Embodiment 1 of this utility model. Figure 1 ;
[0025] Figure 2 A schematic diagram of the usage state of the tailgate assembly provided in Embodiment 1 of this utility model. Figure 2 ;
[0026] Figure 3 A schematic diagram of the usage state of the tailgate assembly provided in Embodiment 1 of this utility model. Figure 3 ;
[0027] Figure 4 This is an enlarged view of the rear door assembly provided in Embodiment 2 of this utility model;
[0028] Figure 5 This is a schematic diagram showing the first rear slide, limit switch, and rear support rod in a folded state, as used in Embodiment 2 of this utility model.
[0029] Figure 6 This is a schematic diagram showing the first rear slide, limit switch, and rear support rod in the supported state as used in Embodiment 2 of this utility model;
[0030] Figure 7 This is a schematic diagram of the front hinge seat used in Embodiment 3 of this utility model;
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Rear door body; 2. First guide rail; 3. Front lifting rod device; 310. Front slide block; 320. Front support rod; 330. Front hinge seat; 331. Rear door seat body; 3311. Connecting ear; 332. Rod seat body; 333. Limiting component; 4. Rear lifting rod device; 410. First rear slide block; 411. Adjustment through hole; 420. Rear support rod; 430. Second rear slide block; 440. Limit switch; 441. Toggle switch; 5. Second guide rail; 6. Ceiling. Detailed Implementation
[0033] To make the technical problems, technical solutions, and 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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".
[0038] Please refer to the following: Figures 1 to 3The rear tailgate assembly provided by this utility model will now be described. The rear tailgate assembly includes a tailgate body 1, a first guide rail 2, a front lifting rod device 3, and a rear lifting rod device 4. The first guide rail 2 is located on the top of the side panel assembly and extends along the top outline of the side panel assembly. The front lifting rod device 3 is a telescopic device capable of extending and retracting in the vertical direction. The fixed end of the front lifting rod device 3 is slidably connected to the first guide rail 2, and the telescopic end is hinged to the front of the side of the tailgate body 1. The front lifting rod device 3 has a retracted state and an extended state. In the retracted state… The upper edge of the tailgate body 1 aligns with the upper edge of the trunk opening; in the extended state, the upper edge of the tailgate body 1 extends upwards above the roof 6; one end of the rear lifting rod device 4 is slidably connected to the first guide rail 2, and the other end is movably connected to the rear side of the tailgate body 1. The rear lifting rod device 4 has a folded state and a raised state. In the folded state, the lower edge of the tailgate body 1 aligns with the lower edge of the trunk opening; in the raised state, the lower edge of the tailgate body 1 extends upwards above the roof 6. When the tailgate body 1 is closed, the front lifting rod device 3 is in a retracted state, and the rear lifting rod device 4 is in a folded state, such as... Figure 1 As shown; when the main body 1 of the tailgate is flipped open, the front lifting rod device 3 is in an extended state, and the rear lifting rod device 4 is in a supported state, as shown. Figure 2 As shown; when the main body 1 of the tailgate is fully open, the main body 1 of the tailgate is located above the ceiling 6, as shown. Figure 3 As shown.
[0039] It should be noted that the extension and retraction direction of the front lifting rod device 3 can be completely parallel to the vertical direction, or it can be set at an acute angle to the vertical direction. Considering the slanted design of the tailgate, it is preferable that the extension and retraction direction of the front lifting rod device 3 is set at an acute angle to the vertical direction. More specifically, the extension and retraction direction of the front lifting rod device 3 coincides with the normal line of the guide rail where the front lifting rod device 3 is located when the door is closed.
[0040] In addition, one end of the rear lifting rod device 4 is not only slidably connected to the first guide rail 2, but can also rotate relative to the first guide rail 2, thereby realizing the folding of the rear lifting rod device 4.
[0041] Compared with the prior art, the tailgate assembly provided in this embodiment has the following characteristics when the tailgate body 1 is closed: the front lifting rod device 3 is in a retracted state, the rear lifting rod device 4 is in a folded state, and the end of the rear lifting rod device 4 that is movably connected to the tailgate is tilted backward and downward (e.g., ...). Figure 1(As shown); if it is necessary to open the door, the front lifting rod device 3 switches from the retracted state to the extended state, causing the upper edge of the tailgate body 1 to gradually rise. At the same time, the rear lifting rod device 4 switches from the folded state to the extended state, causing the lower edge of the tailgate body 1 to gradually rise as well. The entire tailgate body 1 flips upward and rises (i.e., the tailgate body 1 is opened). When the entire tailgate body 1 is higher than the ceiling 6, the front edge of the tailgate body 1 is lower than the rear edge of the tailgate body 1 (as shown). Figure 2 As shown), the front lifting rod device 3 and the rear lifting rod device 4 move forward simultaneously along the first guide rail 2 until the tailgate body 1 is above the ceiling 6; after the tailgate body 1 moves above the ceiling 6, the rear lifting rod device 4 switches from the supported state to the folded state until the tailgate body 1 is close to the ceiling 6 (as shown). Figure 3 As shown in the diagram, to avoid the tailgate body 1 tilting too high and occupying too much overhead space, the tailgate body 1 is fully opened, completing the opening operation; the reverse operation completes the closing operation. This embodiment enables the tailgate body 1 to achieve an opening process of first raising and then sliding forward, and a closing process of first moving forward and then lowering. After the tailgate body 1 is opened, it basically does not obstruct the overhead space of the trunk, making the trunk more open and easier to retrieve large items. At the same time, the opening and closing method of this embodiment requires less space behind the vehicle, and the tailgate body 1 can be opened and closed without a large space, thus reducing restrictions on the vehicle's parking space.
[0042] In some embodiments, the other end of the rear lifting rod device 4 is movably connected to the rear of the side of the tailgate body 1. This is achieved by the rear lifting rod device 4 being a telescopic device, with its telescopic end hinged to the rear of the side of the tailgate body 1.
[0043] In other embodiments, to achieve a movable connection between the other end of the rear lifting rod device 4 and the rear side of the tailgate body 1, see [reference needed]. Figures 1 to 4 The tailgate body 1 has a second guide rail 5 on its side, which extends along the side line of the tailgate body 1. The rear lifting rod device 4 includes a first rear slide 410, a rear support rod 420, and a second rear slide 430. The first rear slide 410 is slidably connected to the first guide rail 2, and the second rear slide 430 is slidably connected to the second guide rail 5. One end of the rear support rod 420 is hinged to the first rear slide 410, and the other end is hinged to the second rear slide 430. In this embodiment, the length of the rear support rod 420 is fixed. The switching between the folded state and the raised state is achieved through sliding cooperation with the tailgate body 1. The rear lifting rod device 4 has a simple and compact structure and low operating cost.
[0044] It should be noted that during the switching between the folded and extended states of the rear lifting rod device 4, in order to maintain its structural stability, the position of the first rear slide block 410 relative to the first guide rail 2 remains unchanged, and the state switching is achieved only by adjusting the position of the second rear slide block 430 relative to the second guide rail 5.
[0045] Based on the above embodiments, in order to realize the lifting function of the rear lifting rod device 4, the tailgate assembly also includes a rear sliding drive device and a rear lifting drive device. The rear sliding drive device is drivenly connected to the first rear slide block 410 to drive the first rear slide block 410 to move back and forth along the first guide rail 2; the rear lifting drive device is drivenly connected to the second rear slide block 430 to drive the second rear slide block 430 to move back and forth along the second guide rail 5. The rear lifting drive device operates to switch the rear lifting rod device 4 from the folded state to the extended state. After switching to the correct position, the rear lifting drive device stops operating. Subsequently, the rear sliding drive device operates to drive the rear lifting rod device 4 to move forward, which corresponds to the process of the tailgate body 1 moving forward as a whole.
[0046] Based on the provision of a rear sliding drive and a rear lifting drive, see [link / reference] Figures 4 to 6 The first rear slide block 410 is equipped with a limit switch 440. When the rear support rod 420 swings to the position corresponding to the supported state, the rear support rod 420 triggers the limit switch 440. The limit switch 440 is communicatively connected to the rear sliding drive device and the rear lifting drive device. Door opening process: According to the input commands from the control module such as the remote control and vehicle buttons, the rear lifting drive device operates to switch the rear lifting rod device 4 from the folded state to the supported state. After the rear support rod 420 triggers the limit switch 440, it is determined that the state switch of the rear lifting rod device 4 is completed. The limit switch 440 generates a completion command. The rear lifting drive device stops running according to the completion command, and the rear sliding drive device starts according to the completion command to drive the rear lifting rod device 4 forward. During the closing process, based on input commands from control modules such as the remote control and vehicle buttons, the rear sliding drive mechanism operates to move the rear lifting lever 4 backward. After moving above the trunk opening, the rear sliding drive mechanism stops, and the rear lifting drive mechanism operates to switch the rear lifting lever 4 from the extended state to the folded state. Simultaneously, the toggle switch 441 of the limit switch 440 resets. By setting the limit switch 440, the intelligence level of the door opening action is improved, ensuring accurate and smooth door opening.
[0047] Optional, see Figure 5 and Figure 6The limit switch 440 is embedded in the first rear slide 410. The first rear slide 410 has an adjustment through hole 411, which is an elongated hole. The dial 441 of the limit switch 440 passes through the adjustment through hole 411, and the rear support rod 420 can move the dial 441 during swinging. The embedded design of the limit switch 440 can better protect the limit switch 440 and prevent it from directly hitting the rear support rod 420. To allow the rear support rod 420 to touch the dial 441, the adjustment through hole 411 is provided so that the dial 441 can pass through. The dial 441 has a first trigger state and a second trigger state. When the rear support rod 420 is in the folded state, the dial 441 is in the first trigger state and is located at the rear end of the adjustment through hole 411. When the rear support rod 420 is in the extended state, the dial 441 is in the second trigger state and is located at the front end of the adjustment through hole 411. Based on this, during the transition from the folded state to the extended state, the rear support rod 420 pushes the dial 441 to move. When the dial 441 moves to the front end of the adjustment through hole 411, the limit switch 440 signal changes, indicating that the state transition of the rear lifting rod device 4 is complete.
[0048] Optionally, when the rear support rod 420 is in the folded state, the toggle switch 441 is in the first trigger state, and the distance between the rear support rod 420 and the toggle switch 441 is less than 0.1mm. In this way, the toggle switch 441 being in the first trigger state is equivalent to the rear support rod 420 being in the folded state. During the closing process, the toggle switch 441 returning to the first trigger state can stop the lifting drive component and the hinge limit component from operating, making the control logic simpler.
[0049] More specifically, a spring element is provided between the switch body of the limit switch 440 and the toggle switch 441. The toggle switch 441 has a first trigger state and a second trigger state. When the rear support rod 420 is in the position corresponding to the folded state, the toggle switch 441 is in the first trigger state, and the toggle switch 441 is located at one end of the adjustment through hole 411; when the rear support rod 420 is in the position corresponding to the extended state, the toggle switch 441 is in the second trigger state, and the toggle switch 441 is located at the other end of the adjustment through hole 411. The spring element is configured with a preload force to put the toggle switch 441 in the first trigger state. The spring element enables the toggle switch 441 to have a self-resetting function, making it more convenient to use. The implementation of the spring element includes, but is not limited to, springs, rubber blocks, etc., and is not the only one here.
[0050] In some embodiments, the specific implementation of the rear sliding drive device is exemplified as follows:
[0051] 1) The rear 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 6 to the rear of the vehicle body, connecting with the first rear slide seat 410. This makes full use of the internal space of the roof 6, avoids affecting the movement of the first rear slide seat 410, and the flexible shaft can also drive the first rear slide seat 410 to reciprocate along the first guide rail 2.
[0052] 2) The rear sliding drive device includes a drive motor, a drive gear connected to the output shaft of the drive motor, and a rack provided on the first guide rail 2 and extending along the long axis of the first guide rail 2. The drive motor is fixed on the first rear slide 410. 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 first rear slide 410.
[0053] In some embodiments, the specific implementation of the rear lifting drive device is exemplified as follows:
[0054] 1) The rear lifting drive device is a flexible shaft drive device, wherein the flexible shaft is flexible and can be connected to components that are not in the same direction as the main body of the flexible shaft drive device, so as to move the target object. By adopting a flexible shaft drive device, the main body of the flexible shaft drive device can be flexibly set inside the tailgate body 1. For example, the main body of the flexible shaft drive device can be set at the front of the tailgate body 1, the flexible shaft bends and extends rearward along the edge of the tailgate body 1 and connects to the second rear slide 430, making full use of the internal space of the tailgate body 1.
[0055] 2) The rear lifting drive device includes a drive motor, a drive gear connected to the output shaft of the drive motor, and a rack provided on the second guide rail 5 and extending along the long axis of the second guide rail 5. The drive motor is fixed on the second rear slide 430. 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 second rear slide 430.
[0056] 3) The rear lifting drive device includes a drive motor, a drive sprocket connected to the output shaft of the drive motor, and a chain extending forward and backward on the second guide rail 5. The drive motor is fixed on the second rear slide 430. The drive motor drives the drive sprocket to rotate, and the drive sprocket meshes with the chain, thereby realizing the movement of the second rear slide 430. A tensioning wheel is provided inside the second guide rail 5, which is supported between the second guide rail 5 and the chain to maintain a certain tension in the chain, facilitating engagement with the drive sprocket.
[0057] In some embodiments, see Figure 4The front lifting rod device 3 includes a front slide block 310, a front support rod 320, and a front hinge seat 330. The front slide block 310 is slidably connected to the first guide rail 2, and the front hinge seat 330 is located at the front of the side of the tailgate body 1. The front support rod 320 is a telescopic rod, with its fixed end fixedly connected to the front slide block 310 and its telescopic end hinged to the tailgate body 1 via the front hinge seat 330. The front lifting rod device 3 has a simple overall structure. The front slide block 310 not only meets the sliding cooperation with the first guide rail 2 but also provides stable support for the front support rod 320 and the tailgate body 1, resulting in better reliability.
[0058] Optionally, the front strut 320 can be implemented in ways including but not limited to hydraulic struts, pneumatic struts, electric actuators, etc., as long as they meet the requirements of electric lifting control. No single method is specified here.
[0059] Based on the above embodiments, in order to achieve sliding control of the front slide block 310, the tailgate assembly also includes a front sliding drive device, which is connected to the front slide block 310 to drive the front slide block 310 to move back and forth along the first guide rail 2. The implementation of the front sliding drive device is similar to that of the aforementioned rear sliding drive device, and will not be described again here.
[0060] When the door is opened, based on input commands from control modules such as the remote control and vehicle buttons, the front strut 320 switches from a retracted state to an extended state until the upper edge of the tailgate body 1 is higher than the roof 6. At this point, the front lifting rod device 3 is considered to have completed its state transition and generates a completion signal. The front sliding drive device then activates based on this signal, moving the front lifting rod device 3 forward. When the door is closed, based on input commands from control modules such as the remote control and vehicle buttons, the front sliding drive device moves the front lifting rod device 3 backward until the tailgate body 1 is above the trunk opening. The front sliding drive device then stops, and the front strut 320 switches from an extended state to a retracted state until the upper edge of the tailgate body 1 is aligned with the upper edge of the trunk opening.
[0061] It should be noted that the start and stop of the front sliding drive device and the rear sliding drive device are synchronized to ensure the stability of the entire tailgate body 1 as it moves back and forth along the first guide rail 2. The operation of the front support rod 320 and the rear lifting drive device can be asynchronous, as long as the tailgate body 1 does not collide with the roof 6 and the side wall during the lifting process.
[0062] In some embodiments, see Figure 7The front hinge seat 330 includes a tailgate seat 331 and a rod seat 332. The tailgate seat 331 is fixedly connected to the tailgate body 1, and the rod seat 332 is fixedly connected to the telescopic end of the front support rod 320. The tailgate seat 331 and the rod seat 332 are hinged together. The tailgate seat 331 is provided with a limiting member 333. If the front lifting rod device 3 is in the extended state and the rear lifting rod device 4 is in the supported state, the limiting member 333 abuts against the outer peripheral surface of the rod seat 332 to limit the upward tilt angle of the tailgate body 1 and avoid the tailgate body 1 from tilting upward at too large an angle, which would cause the front edge of the tailgate body 1 to hit the ceiling 6, thus improving the reliability of use.
[0063] Specifically, the tailgate seat 331 has two oppositely arranged connecting ears 3311, forming a receiving groove between the two connecting ears 3311. The rod seat 332 is inserted into the receiving groove and hinged to the two connecting ears 3311. A limiting member 333 is provided at the front of the two connecting ears 3311. The limiting member 333 is a limiting post extending in the left and right direction. When the front lifting rod device 3 is in the extended state and the rear lifting rod device 4 is in the supported state, the limiting member 333 abuts against the protrusion on the rod seat 332, and the tailgate body 1 can no longer be flipped upward.
[0064] In some embodiments, the first rear slide 410 and the first guide rail 2, as well as the front slide 310 and the first guide rail 2, are distributed along the left and right directions, reducing the space occupied in the vertical plane and improving the compactness of the structure.
[0065] Based on the same inventive concept, this application also provides a vehicle including the aforementioned tailgate assembly.
[0066] Compared with the prior art, the vehicle provided in this embodiment, by adopting the above-mentioned tailgate assembly, has virtually no obstruction of the space above the trunk after the tailgate body 1 is opened, the trunk is more open and it is more convenient to take out large items; at the same time, the tailgate body 1 can be opened and closed without a large space, so there are fewer restrictions on the vehicle parking space and the overall convenience of the vehicle is stronger.
[0067] 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 tailgate assembly, characterized in that, include: Back door main body (1); The first guide rail (2) is located on the top of the side panel assembly and extends along the top outline of the side panel assembly; The front lifting rod device (3) is a telescopic device that can extend and retract in the vertical direction. The fixed end of the front lifting rod device (3) is slidably connected to the first guide rail (2), and the telescopic end is hinged to the front of the side of the tailgate body (1). The front lifting rod device (3) has a retracted state and an extended state. In the retracted state, the upper edge of the tailgate body (1) is aligned with the upper edge of the trunk opening. In the extended state, the upper edge of the tailgate body (1) extends upward above the roof (6). The rear lifting rod device (4) is slidably connected at one end to the first guide rail (2) and movably connected at the rear of the side of the tailgate body (1). The rear lifting rod device (4) has a folded state and a supported state. In the folded state, the lower edge of the tailgate body (1) is aligned with the lower edge of the trunk opening. In the supported state, the lower edge of the tailgate body (1) extends upward above the roof (6). When the back door body (1) is closed, the front lifting rod device (3) is in a retracted state and the rear lifting rod device (4) is in a folded state; when the back door body (1) is fully open, the back door body (1) is located above the ceiling (6).
2. The tailgate assembly as described in claim 1, characterized in that, The back door body (1) is provided with a second guide rail (5) on its side. The second guide rail (5) extends along the side line of the back door body (1). The rear lifting rod device (4) includes a first rear slide (410), a rear support rod (420), and a second rear slide (430). The first rear slide (410) is slidably connected to the first guide rail (2), and the second rear slide (430) is slidably connected to the second guide rail (5). One end of the rear support rod (420) is hinged to the first rear slide (410), and the other end is hinged to the second rear slide (430).
3. The tailgate assembly as described in claim 2, characterized in that, The rear door assembly also includes a rear sliding drive device and a rear lifting drive device. The rear sliding drive device is connected to the first rear slide block (410) to drive the first rear slide block (410) to move back and forth along the first guide rail (2). The rear lifting drive device is connected to the second rear slide block (430) to drive the second rear slide block (430) to move back and forth along the second guide rail (5).
4. The tailgate assembly as described in claim 3, characterized in that, The first rear slide (410) is provided with a limit switch (440). When the rear support rod (420) swings to the position corresponding to the supported state, the rear support rod (420) triggers the limit switch (440). The limit switch (440) is communicatively connected to the rear sliding drive device and the rear lifting drive device respectively.
5. The tailgate assembly as described in claim 4, characterized in that, The limit switch (440) is embedded in the first rear slide (410). The first rear slide (410) is provided with an adjustment through hole (411). The adjustment through hole (411) is an oblong hole. The dial (441) of the limit switch (440) is provided through the adjustment through hole (411). The rear support rod (420) can move the dial (441) during the swinging process.
6. The tailgate assembly as described in claim 5, characterized in that, An elastic element is provided between the switch body of the limit switch (440) and the toggle switch (441). The toggle switch (441) has a first trigger state and a second trigger state. When the rear support rod (420) is in the position corresponding to the folded state, the toggle switch (441) is in the first trigger state and the toggle switch (441) is located at one end of the adjustment through hole (411). When the rear support rod (420) is in the position corresponding to the extended state, the toggle switch (441) is in the second trigger state and the toggle switch (441) is located at the other end of the adjustment through hole (411). The elastic element is configured with a preload force to make the toggle switch (441) be in the first trigger state.
7. The tailgate assembly as described in claim 1, characterized in that, The front lifting rod device (3) includes a front slide (310), a front support rod (320) and a front hinge seat (330). The front slide (310) is slidably connected to the first guide rail (2), and the front hinge seat (330) is located at the front of the side of the back door body (1). The front support rod (320) is a telescopic rod. The fixed end of the front support rod (320) is fixedly connected to the front slide (310), and the telescopic end is hinged to the back door body (1) through the front hinge seat (330).
8. The tailgate assembly as described in claim 7, characterized in that, The rear door assembly also includes a front sliding drive device, which is connected to the front slide block (310) to drive the front slide block (310) to move back and forth along the first guide rail (2).
9. The tailgate assembly as described in claim 8, characterized in that, The front hinge seat (330) includes a back door seat body (331) and a rod seat body (332). The back door seat body (331) is fixedly connected to the back door body (1), and the rod seat body (332) is fixedly connected to the telescopic end of the front support rod (320). The back door seat body (331) and the rod seat body (332) are hinged together. The back door seat body (331) is provided with a limiting member (333). If the front lifting rod device (3) is in the extended state and the rear lifting rod device (4) is in the supported state, the limiting member (333) abuts against the outer peripheral surface of the rod seat body (332) to limit the upward tilt angle of the back door body (1).
10. A vehicle, characterized in that, Includes the rear tailgate assembly as described in any one of claims 1-9.