Lifting tailgate structure
By combining the swing arm assembly and the drive assembly, the tailgate can be raised, lowered, and flipped, solving the problems of space occupation, low stability, and limited adaptability of existing automotive tailgate structures. This improves the stability and safety of the tailgate, broadens its application range, and enhances its load-bearing capacity and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DORA NEW ENERGY VEHICLE TECHNOLOGY CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-21
AI Technical Summary
Existing car tailgate structures occupy a large space, have low stability and safety, are limited in the types of vehicles they can be used in, have low practicality, and are easily damaged.
It employs a swing arm assembly and a drive assembly, and uses a sliding assembly to raise, lower, and tilt the tailgate, avoiding the rear bumper or other fixed structures at the rear of the vehicle. Combined with linkages and telescopic devices, it forms a stable four-bar linkage mechanism, optimizing the tailgate's folding effect.
The tailgate can be smoothly folded under the rear of the car or unfolded to fit seamlessly with the rear of the car, saving space, improving stability and safety, with a wide range of applications, strong load-bearing capacity, reducing the risk of damage, and extending service life.
Smart Images
Figure CN224528527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile tailgate technology, and in particular to a lifting tailgate structure. Background Technology
[0002] In today's booming logistics and transportation industry, vehicle tailgates, as key equipment for improving cargo loading and unloading efficiency, can quickly and conveniently load and unload goods, greatly reducing the labor intensity and time cost of manual handling. They are especially suitable for scenarios with frequent loading and unloading of goods, such as urban distribution and express logistics. Vehicle tailgates not only improve the efficiency of logistics and transportation, but also ensure the safety of cargo loading and unloading, reducing the risk of cargo damage. Therefore, they have become an indispensable auxiliary equipment for many transport vehicles.
[0003] Currently, existing automotive tailgates mainly adopt the following structures: First, some tailgates include a tailgate and mounting bracket. The mounting bracket is fixed to the chassis beam, and the tailgate stands upright at the rear of the vehicle, or it can directly replace the tailgate. While this offers some convenience in installation and use and is well-suited for some simpler vehicle models, it occupies a large amount of rear space, has low stability and safety during vehicle operation, and is prone to damage. Second, some tailgates include a folding tailgate and a lifting mechanism. The lifting mechanism mounts the tailgate to the chassis beam, allowing it to fold under the rear chassis when not in use. This saves rear space, improves vehicle stability and safety during driving, and also prevents the tailgate from being damaged during vehicle operation. While damaged by external forces during driving, existing tailgate structures still have the following shortcomings: 1. Existing tailgate structures are mainly suitable for vehicles without rear bumpers or other fixed structures at the rear. For enclosed vans and other vehicles equipped with rear bumpers or other fixed structures, the rear bumper or other fixed structures occupy part of the space required for the tailgate and the telescopic or lifting mechanism. This makes it impossible for existing tailgate structures to fold under the rear chassis or unfold to fit snugly against the rear of the vehicle, or even restrict the installation of the overall structure. Consequently, the practicality and applicability of tailgates are limited, failing to meet the increasingly diverse market demands. 2. Foldable tailgates have poor load-bearing capacity and are easily damaged. Utility Model Content
[0004] The purpose of this utility model is to provide a lifting tailgate structure to solve the problems of existing car tailgate structures, such as large space occupation, low stability and safety, limited compatibility with car models, low practicality and easy damage.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A lifting tailgate structure includes: a frame assembly, a swing arm assembly, a drive assembly, a tailgate, and a sliding assembly;
[0007] The swing arm assembly is swayably mounted on the frame assembly. One end of the drive assembly is rotatably mounted on the swing arm assembly. The swing arm assembly is configured to drive the drive assembly to swing between an extended position and a retracted position. The other end of the drive assembly is rotatably connected to a sliding assembly. The drive assembly is configured to drive the sliding assembly to move.
[0008] The tailplate is slidably mounted on the sliding assembly.
[0009] Based on the aforementioned technical means, through the cooperation of the swing arm assembly and drive assembly, the tailgate can smoothly swing between the extended and retracted positions, and achieve flexible movement functions such as lifting, lowering, and flipping during the swinging process. This avoids the rear bumper or other fixed structures equipped at the rear of the vehicle, allowing the tailgate to smoothly fold under the vehicle's rear chassis or unfold to seamlessly fit with the rear of the vehicle for easy loading and unloading of goods, saving rear space, improving stability and safety, and offering high flexibility, practicality, and wide applicability, thus expanding the range of applicable vehicle models and meeting diverse market demands. At the same time, the sliding assembly further optimizes the folding effect of the tailgate, allowing it to extend and retract under the vehicle's rear chassis when not in use, saving rear space, ensuring overall stability and safety, and the tailgate's integral structure provides stronger load-bearing capacity, reduces the risk of damage, and extends its service life.
[0010] Furthermore, the drive assembly includes a connecting rod and a first telescopic device. One end of the connecting rod is rotatably connected to the swing arm assembly, and the other end of the connecting rod is rotatably connected to the sliding assembly. One end of the first telescopic device is rotatably connected to the swing arm assembly, and the other end of the first telescopic device is rotatably connected to the other end of the connecting rod. The first telescopic device is configured to drive the connecting rod to swing, thereby causing the sliding assembly to rise and fall.
[0011] Based on the above-mentioned technical means, efficient and stable power transmission is achieved through the cooperation of the connecting rod and the first telescopic device. Specifically, the first telescopic device drives the connecting rod to swing, thereby driving the sliding component to rise and fall. This ensures the smoothness and accuracy of the sliding component's lifting and falling process, which not only simplifies the power transmission path and improves energy utilization efficiency, but also enables the tailgate to swing and rise synchronously when avoiding the rear bumper or other fixed structures, thereby further optimizing space utilization and operational flexibility.
[0012] Furthermore, the drive assembly also includes a second telescopic device, one end of which is rotatably connected to the swing arm assembly, and the other end of the first telescopic device is rotatably connected to the sliding assembly; the second telescopic device is configured to drive the sliding assembly to rotate, thereby causing the tail plate to adjust its tilting angle.
[0013] Based on the aforementioned technical means, a stable four-bar linkage motion mode is formed by the cooperation of the second telescopic device and the first telescopic device, realizing composite control of the tailboard movement. When the first telescopic device and the second telescopic device extend and retract simultaneously, the sliding component can drive the tailboard to maintain a horizontal lifting and lowering position. When the first telescopic device is not moving, and the second telescopic device extends and retracts, the sliding component can independently drive the tailboard to flip to adjust the angle. Specifically, while the first telescopic device extends and retracts, driving the linkage to swing and drive the tailboard to lift and lower, the second telescopic device can drive the sliding component to rotate through its extension and retraction action to adjust the tailboard flipping angle, so that the tailboard maintains a horizontal state and lifts and lowers smoothly. This not only allows the tailboard to accurately avoid complex obstacles such as the rear bumper or other fixed structures, achieving a more compact folding posture, but also allows for flexible adjustment of the tailboard tilt according to cargo loading and unloading needs, improving operational convenience. In addition, the two telescopic devices enhance the overall load-bearing capacity and improve the reliability and service life of the overall structure.
[0014] Furthermore, both the connecting rod and the first telescopic device have an arc-shaped clearance section at the end near the tail plate.
[0015] Based on the above technical means, by setting an arc-shaped avoidance section at the end of the connecting rod and the first telescopic device near the tail plate, not only is a pre-set avoidance space provided for the dynamic displacement during the flipping or lifting of the tail plate, but also rigid collisions are avoided between the straight rod and complex obstacles such as the rear bumper or other fixed structures, thus extending the service life of the connecting rod and the first telescopic device and improving the stability and safety of use.
[0016] Furthermore, the sliding assembly includes a guide rail and a slide block. The guide rail is fixedly mounted on the tail plate, and a groove is formed on the slide block along the length direction of the guide rail. The guide rail is slidably mounted in the groove. The other end of the connecting rod is rotatably connected to one end of the slide block, and the other end of the second telescopic device is rotatably connected to the other end of the slide block.
[0017] Based on the above technical means, the guide rail and the sliding groove on the slide block are matched to ensure the accuracy and smoothness of the direction of the guide rail driving the tail plate to slide, avoiding the wobble and jamming phenomenon during the movement of the tail plate. In addition, the connecting rod and the second telescopic device are connected to the two ends of the L-shaped slide block to form a dual-support point drive structure, which not only disperses the force to reduce single-point wear, but also improves the torsional resistance of the overall structure through mechanical balance, ensuring the smooth, efficient and reliable operation of the tail plate retraction or unfolding.
[0018] Furthermore, a first axle pin is installed at one end of the slide, and a second axle pin is installed at the other end. The other ends of the connecting rod and the first telescopic device are rotatably connected to the first axle pin, and the other end of the second telescopic device is rotatably connected to the second axle pin.
[0019] Based on the above technical means, by setting a first shaft pin and a second shaft pin at both ends of the slide as rotation connection points, the connecting rod and the first telescopic device are both connected to the slide through the first shaft pin, saving parts; the second telescopic device is connected to the slide through the second shaft pin, which is simple in structure, easy to install, and ensures smooth rotation. It not only simplifies the transmission path and improves the motion transmission efficiency, but also enhances the reliability of the overall structure.
[0020] Furthermore, there are two sets of both the driving components and the sliding components, with the two sets of driving components arranged symmetrically, and the tail plate slidably mounted on the two sets of sliding components.
[0021] Based on the above technical means, by setting up two sets of drive components and sliding components, the stability and reliability of the tailplate movement are improved.
[0022] Furthermore, the swing arm assembly includes two swing arms, a first connecting shaft, two connecting plates, and a second connecting shaft. The two swing arms are symmetrically arranged, and one end of each swing arm is rotatably mounted on the frame assembly. The first connecting shaft connects the two swing arms. The second connecting shaft is connected to the first connecting shaft through the two connecting plates and is arranged parallel to the first connecting shaft.
[0023] One end of the connecting rod is rotatably mounted on the first connecting shaft, one end of the first telescopic device is rotatably mounted on the second connecting shaft, and one end of the second telescopic device is rotatably mounted on the other end of the swing arm via a third shaft pin.
[0024] Based on the above technical means, the basic support is formed by the rotational connection of two symmetrical swing arms and the frame assembly. The first connecting shaft not only realizes the rigid synchronization of the two swing arms, but also ensures the overall stability. The second connecting shaft is installed parallel to the first connecting shaft through the connecting plate, so that the driving force of the connecting rod, the first telescopic device and the second telescopic device is transmitted in layers through different axes, ensuring the smoothness of the tail plate lifting and tilting action. At the same time, the second telescopic device is installed on the swing arm through the third shaft pin, which is convenient to install, stable in connection, and ensures smooth rotation and good flexibility.
[0025] Furthermore, the frame assembly includes two mounting bases, which are symmetrically arranged, and one end of each of the two swing arms is rotatably mounted on one of the mounting bases via a fifth pivot pin.
[0026] Based on the above technical means, the installation of the swing arm is provided with a stable support foundation by two symmetrically arranged mounting seats and the fifth axle pin, so that the force of the swing arm is evenly distributed to both sides of the vehicle chassis. The fifth axle pin, as the key rotational connection point between the swing arm and the frame, is easy to install, has a stable connection, and ensures smooth rotation.
[0027] Furthermore, a third connecting shaft is fixed between the two slides.
[0028] Based on the aforementioned technical means, a third connecting shaft is used to connect the two slides, further ensuring the overall stability.
[0029] The beneficial effects achieved by this utility model are:
[0030] This invention utilizes a swing arm assembly and a drive assembly to allow the tailgate to swing smoothly between its extended and retracted positions, achieving flexible movement functions such as lifting, lowering, and flipping during the swing. This avoids obstructing the rear bumper or other fixed structures at the rear of the vehicle, enabling the tailgate to fold smoothly under the vehicle's rear chassis or unfold seamlessly to fit the rear of the vehicle for easy loading and unloading of goods. This saves rear space, improves stability and safety, and offers high flexibility, practicality, and wide applicability, expanding the range of applicable vehicle models and meeting diverse market demands. Furthermore, the sliding assembly further optimizes the tailgate's folding effect, allowing it to extend and retract under the vehicle's rear chassis when not in use, saving rear space, ensuring overall stability and safety, and providing a stronger load-bearing capacity, reduced risk of damage, and extended service life due to its integral structure. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0032] Figure 2 This is a schematic diagram of the structure of the swing arm assembly, drive assembly, and sliding assembly of this utility model;
[0033] Figure 3 This is an exploded view of the drive assembly and slide of this utility model;
[0034] Figure 4 This is a schematic diagram of the tail plate and sliding assembly of this utility model;
[0035] Figure 5 This is a schematic diagram of the structure of the tailgate of this utility model folded under the chassis at the rear of the vehicle;
[0036] Figure 6 This is a schematic diagram of the structure of the tailgate of this utility model extending from the rear chassis of a vehicle. Figure 1 ;
[0037] Figure 7 This is a schematic diagram of the structure of the tailgate of this utility model extending from the rear chassis of a vehicle. Figure 2 ;
[0038] Figure 8 This is a schematic diagram of the structure of the tailgate of this utility model extending from the rear chassis of a vehicle. Figure 3 ;
[0039] Figure 9 This is a schematic diagram of the structure of the tailgate of this utility model extending from the rear chassis of a vehicle. Figure 4 ;
[0040] Figure 10 This is a schematic diagram of the structure of the tailgate of this utility model extending from the rear chassis of a vehicle. Figure 5 .
[0041] Among them, 01-tailgate; 02-cargo floor; 03-rear bumper; 04-main beam;
[0042] 1-Frame assembly; 11-Mounting base; 111-Fifth shaft pin; 2-Swing arm assembly; 21-Swing arm; 211-Third shaft pin; 22-First connecting shaft; 23-Connecting plate; 24-Second connecting shaft; 3-Drive assembly; 31-Connecting rod; 32-First telescopic device; 33-Second telescopic device; 34-Arc-shaped clearance section; 4-Tail plate; 5-Sliding assembly; 51-Guide rail; 52-Slide seat; 521-Slide groove; 522-First shaft pin; 523-Second shaft pin; 53-Third connecting shaft.
[0043] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation
[0044] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.
[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.
[0046] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.
[0047] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.
[0048] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0049] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0050] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0051] This embodiment involves a lifting tailgate structure, such as... Figures 1-4 As shown, it includes: a frame assembly 1, a swing arm assembly 2, a drive assembly 3, a tail plate 4, and a sliding assembly 5; the swing arm assembly 2 is oscillatingly mounted on the frame assembly 1, one end of the drive assembly 3 is rotatably mounted on the swing arm assembly 2, and the swing arm assembly 2 is configured to drive the drive assembly 3 to swing between an extended position and a retracted position; the other end of the drive assembly 3 is rotatably connected to the sliding assembly 5, and the drive assembly 3 is configured to drive the sliding assembly 5 to move; the tail plate 4 is slidably mounted on the sliding assembly 5.
[0052] This embodiment utilizes a swing arm assembly 2, a drive assembly 3, and a sliding assembly 5 to allow the tailgate 4 to swing smoothly between its extended and retracted positions. During this swinging motion, it achieves flexible movement functions such as lifting, tilting, and extending / retracting, avoiding obstructions to the rear bumper or other fixed structures at the rear of the vehicle. This allows the tailgate 4 to fold smoothly to save rear space or unfold for easy loading and unloading of goods, improving stability and safety. It offers high flexibility, practicality, and wide applicability, broadening the range of applicable vehicle models and meeting diverse market demands. In practical applications, the lifting tailgate structure is installed on the vehicle, which includes the tailgate 01, cargo floor 02, rear bumper 03, and main beam 04. The tailgate 4 adopts an integral structure, which has a stronger load-bearing capacity, reduces the risk of damage, and extends its service life. Specifically, during installation, the frame assembly 1 is installed on the main beam 04 of the vehicle chassis. When the tailgate 4 is not in operation, the entire lifting tailgate structure is in the retracted position, that is, folded up under the rear chassis of the vehicle, without affecting the opening and closing of the tailgate 01 or the loading and unloading of goods, ensuring the stability and safety of the vehicle during driving. Figure 5 As shown; when the tailgate 4 is working, firstly, the swing arm assembly 2 drives the drive assembly 3, tailgate 4, and sliding assembly 5 to swing towards the rear of the vehicle, so that the tailgate 4 is in the extended position, that is, the tailgate 4 can extend out of the rear of the vehicle. At the same time as swinging, the drive assembly 3 drives the sliding assembly 5 to raise and lower the tailgate 4 to avoid the rear bumper 03 or other fixed structures equipped at the rear of the vehicle, so that the tailgate 4 can smoothly extend out of the rear of the vehicle. After the tailgate 4 passes the rear bumper 03 or other fixed structures, the tailgate 4 slides on the sliding assembly 5, so that the tailgate 4 is fully extended out of the rear of the vehicle, as shown. Figure 6 As shown; secondly, the drive assembly 3 drives the sliding assembly 5 to descend to the lowest point, causing the sliding assembly 5 to rotate the tail plate 4 to an inclined state, so that one end of the inclined tail plate 4 touches the ground, facilitating loading, such as... Figure 7 As shown; after loading is completed, the drive component 3 drives the sliding component 5 to rotate the tail plate 4 to a horizontal position, as shown. Figure 8 As shown; finally, the drive assembly 3 drives the sliding assembly 5 to raise the tailgate 4 to the position of the tailgate 01 and flush with the cargo floor 02, allowing for smooth loading and unloading of goods, such as... Figure 9 and Figure 10 As shown.
[0053] like Figure 2 and Figure 3As shown, in this embodiment, the drive assembly 3 includes a connecting rod 31 and a first telescopic device 32. One end of the connecting rod 31 is rotatably connected to the swing arm assembly 2, and the other end of the connecting rod 31 is rotatably connected to the sliding assembly 5. One end of the first telescopic device 32 is rotatably connected to the swing arm assembly 2, and the other end of the first telescopic device 32 is rotatably connected to the other end of the connecting rod 31. The first telescopic device 32 is configured to drive the connecting rod 31 to swing, thereby driving the sliding assembly 5 to rise and fall.
[0054] This embodiment achieves efficient and stable power transmission through the cooperation of the connecting rod 31 and the first telescopic device 32. Specifically, the first telescopic device 32 drives the connecting rod 31 to swing, thereby driving the sliding component 5 to rise and fall. This ensures the smoothness and accuracy of the lifting and lowering process of the sliding component 5, which not only simplifies the power transmission path and improves energy utilization efficiency, but also enables the tailgate 4 to swing and rise synchronously when avoiding the rear bumper 03 or other fixed structures, thereby further optimizing space utilization and operational flexibility. The first telescopic device 32 can be a cylinder or a hydraulic cylinder.
[0055] like Figure 2 and Figure 3 As shown, in this embodiment, the drive assembly 3 further includes a second telescopic device 33. One end of the second telescopic device 33 is rotatably connected to the swing arm assembly 2, and the other end of the first telescopic device 32 is rotatably connected to the sliding assembly 5. The second telescopic device 33 is configured to drive the sliding assembly 5 to rotate, so as to drive the tail plate 4 to adjust the flipping angle.
[0056] In this embodiment, the second telescopic device 33 cooperates with the first telescopic device 32 to form a stable four-bar linkage motion mode, realizing composite control of the movement of the tail plate 4. When the first telescopic device 42 and the second telescopic device 43 extend and retract simultaneously, the sliding component 5 can drive the tail plate 3 to maintain a horizontal lifting and lowering position. When the first telescopic device 42 is not moving, and the second telescopic device 43 extends and retracts, the sliding component 5 can independently drive the tail plate 3 to flip to adjust the angle. Specifically, while the first telescopic device 32 extends and retracts, the driving link 31 swings to drive the tail plate 4 to lift and lower, the second telescopic device 33 can drive the sliding component 5 to rotate through the extension and retraction action to adjust the flip angle of the tail plate 4, so that the tail plate 4 maintains a horizontal state and lifts and lowers smoothly. This not only allows the tail plate 4 to accurately avoid complex obstacles such as the rear bumper 03 or other fixed structures, achieving a more compact folding posture, but also allows for flexible adjustment of the tilt angle of the tail plate 4 according to the cargo loading and unloading requirements, improving operational convenience. In addition, the two telescopic devices enhance the overall load-bearing capacity and improve the reliability and service life of the overall structure. The first telescopic device 32 can be a cylinder or a hydraulic cylinder.
[0057] Furthermore, in a preferred embodiment of this invention, both the connecting rod 31 and the first telescopic device 32 have arc-shaped clearance sections 34 formed at their ends near the tail plate 4; as shown... Figure 3 As shown, this embodiment provides an arc-shaped avoidance section 34 at one end of the connecting rod 31 and the first telescopic device 32 near the tail plate 4. This not only provides a pre-set avoidance space for the dynamic displacement of the tail plate 4 during the flipping or lifting process, but also avoids rigid collisions between the straight rod and complex obstacles such as the rear bumper 03 or other fixed structures. This extends the service life of the connecting rod 31 and the first telescopic device 32 and improves the stability and safety of use.
[0058] like Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the sliding component 5 includes a guide rail 51 and a slide block 52. The guide rail 51 is fixedly installed on the tail plate 4. A slide groove 521 is formed on the slide block 52 along the length direction of the guide rail 51. The guide rail 51 is slidably installed in the slide groove 521. The other end of the connecting rod 31 is rotatably connected to one end of the slide block 52, and the other end of the second telescopic device 33 is rotatably connected to the other end of the slide block 52.
[0059] In this embodiment, the guide rail 51 and the slide groove 521 on the slide block 52 cooperate to ensure the accuracy and smoothness of the direction in which the guide rail 51 drives the tail plate 4 to slide, avoiding the wobble and jamming phenomenon during the movement of the tail plate 4. Furthermore, the connection of the connecting rod 31 and the second telescopic device 33 at both ends of the L-shaped slide block 52 respectively forms a dual-support point drive structure, which not only disperses the force to reduce single-point wear, but also improves the torsional resistance of the overall structure through mechanical balance, ensuring the smooth, efficient and reliable operation of the tail plate 4 in retracting or unfolding. The guide rail 51 can slide in the slide groove 521 by a drive device such as a motor or cylinder, or it can be driven manually.
[0060] Furthermore, in a preferred embodiment of this invention, a first axle pin 522 is mounted on one end of the slide block 52, and a second axle pin 523 is mounted on the other end. The other ends of the connecting rod 31 and the first telescopic device 32 are rotatably connected to the first axle pin 522, and the other end of the second telescopic device 33 is rotatably connected to the second axle pin 523. Figure 4 As shown, in this embodiment, a first axle pin 522 and a second axle pin 523 are respectively set at both ends of the slide 52 as rotation connection points. The connecting rod 31 and the first telescopic device 32 are both connected to the slide 52 through the first axle pin 522, which saves parts. The second telescopic device 33 is connected to the slide 52 through the second axle pin 523. The structure is simple, easy to install, and ensures smooth rotation. It not only simplifies the transmission path and improves the motion transmission efficiency, but also enhances the reliability of the overall structure.
[0061] Furthermore, as a preferred embodiment of this example, there are two sets of driving components 3 and two sets of sliding components 5. The two sets of driving components 3 are symmetrically arranged, and the tail plate 4 is slidably mounted on the two sets of sliding components 5. By setting two sets of driving components 3 and sliding components 5, this embodiment improves the stability and reliability of the tail plate 4's movement.
[0062] like Figure 1 and Figure 2 As shown, in this embodiment, the swing arm assembly 2 includes two swing arms 21, a first connecting shaft 22, two connecting plates 23, and a second connecting shaft 24. The two swing arms 21 are symmetrically arranged, and one end of each swing arm 21 is rotatably mounted on the frame assembly 1. The first connecting shaft 22 is connected between the two swing arms 21. The second connecting shaft 24 is connected to the first connecting shaft 22 through the two connecting plates 23 and is arranged parallel to the first connecting shaft 22. One end of the connecting rod 31 is rotatably mounted on the first connecting shaft 22, one end of the first telescopic device 32 is rotatably mounted on the second connecting shaft 24, and one end of the second telescopic device 33 is rotatably mounted on the other end of the swing arm 21 through the third shaft pin 211.
[0063] In this embodiment, a basic support is formed by the rotational connection of two symmetrical swing arms 21 with the frame assembly 1. The first connecting shaft 22 not only achieves rigid synchronization of the two swing arms 21, but also ensures the overall stability. The second connecting shaft 24 is installed parallel to the first connecting shaft 22 through the connecting plate 23, so that the driving force of the connecting rod 31, the first telescopic device 32 and the second telescopic device 33 is transmitted in layers through different axes, ensuring the smoothness of the lifting and tilting action of the tail plate 4. At the same time, the second telescopic device 33 is installed on the swing arm 21 through the third shaft pin 211, which is convenient to install, stable in connection, and ensures smooth rotation and good flexibility. The swing arm 21 can be driven to swing by a motor, and one end of the first telescopic device 32 is rotatably installed on the second connecting shaft 24 through the fourth shaft pin.
[0064] like Figure 1 and Figure 2 As shown, in this embodiment, the frame assembly 1 includes two mounting bases 11, which are symmetrically arranged. One end of each of the two swing arms 21 is rotatably mounted on one of the mounting bases 11 via a fifth shaft pin 111.
[0065] In this embodiment, two symmetrically arranged mounting bases 11 and a fifth axle pin 111 provide a stable support foundation for the installation of the swing arm 21, so that the force on the swing arm 21 is evenly distributed to both sides of the vehicle chassis. The fifth axle pin 111 serves as a key rotational connection point between the swing arm and the frame, which is easy to install, has a stable connection, and ensures smooth rotation.
[0066] Furthermore, in a preferred embodiment of this invention, a third connecting shaft 53 is fixed between the two slide blocks 52; as shown... Figure 2and Figure 4 As shown, in this embodiment, the two slides are connected by a third connecting shaft 53, which further ensures the overall stability.
[0067] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A lifting tailgate structure, characterized in that, include: The frame assembly (1), the swing arm assembly (2), the drive assembly (3), the tail plate (4), and the sliding assembly (5); The swing arm assembly (2) is swayably mounted on the frame assembly (1), one end of the drive assembly (3) is rotatably mounted on the swing arm assembly (2), and the swing arm assembly (2) is configured to drive the drive assembly (3) to swing between an extended position and a retracted position; the other end of the drive assembly (3) is rotatably connected to the sliding assembly (5), and the drive assembly (3) is configured to drive the sliding assembly (5) to move; The tail plate (4) is slidably mounted on the sliding assembly (5).
2. The lifting tailgate structure according to claim 1, characterized in that, The drive assembly (3) includes a connecting rod (31) and a first telescopic device (32). One end of the connecting rod (31) is rotatably connected to the swing arm assembly (2), and the other end of the connecting rod (31) is rotatably connected to the sliding assembly (5). One end of the first telescopic device (32) is rotatably connected to the swing arm assembly (2), and the other end of the first telescopic device (32) is rotatably connected to the other end of the connecting rod (31). The first telescopic device (32) is configured to drive the connecting rod (31) to swing, thereby driving the sliding assembly (5) to rise and fall.
3. The lifting tailgate structure according to claim 2, characterized in that, The drive assembly (3) further includes a second telescopic device (33), one end of which is rotatably connected to the swing arm assembly (2), and the other end of the first telescopic device (32) is rotatably connected to the sliding assembly (5); the second telescopic device (33) is configured to drive the sliding assembly (5) to rotate so as to drive the tail plate (4) to adjust the flip angle.
4. The lifting tailgate structure according to claim 2, characterized in that, Both the connecting rod (31) and the first telescopic device (32) have an arc-shaped clearance section (34) at the end near the tail plate (4).
5. The lifting tailgate structure according to claim 3, characterized in that, The sliding assembly (5) includes a guide rail (51) and a slide block (52). The guide rail (51) is fixedly installed on the tail plate (4). A groove (521) is formed on the slide block (52) along the length direction of the guide rail (51). The guide rail (51) is slidably installed in the groove (521). The other end of the connecting rod (31) is rotatably connected to one end of the slide block (52), and the other end of the second telescopic device (33) is rotatably connected to the other end of the slide block (52).
6. The lifting tailgate structure according to claim 5, characterized in that, One end of the slide (52) is equipped with a first axle pin (522), and the other end is equipped with a second axle pin (523). The other ends of the connecting rod (31) and the first telescopic device (32) are rotatably connected to the first axle pin (522), and the other end of the second telescopic device (33) is rotatably connected to the second axle pin (523).
7. The lifting tailgate structure according to claim 5, characterized in that, The number of the driving component (3) and the sliding component (5) are both two sets, the two sets of driving components (3) are symmetrically arranged, and the tail plate (4) is slidably installed on the two sets of sliding components (5).
8. The lifting tailgate structure according to claim 7, characterized in that, The swing arm assembly (2) includes two swing arms (21), a first connecting shaft (22), two connecting plates (23), and a second connecting shaft (24). The two swing arms (21) are symmetrically arranged, and one end of each swing arm (21) is rotatably mounted on the frame assembly (1). The first connecting shaft (22) is connected between the two swing arms (21). The second connecting shaft (24) is connected to the first connecting shaft (22) through the two connecting plates (23) and is arranged parallel to the first connecting shaft (22). One end of the connecting rod (31) is rotatably mounted on the first connecting shaft (22), one end of the first telescopic device (32) is rotatably mounted on the second connecting shaft (24), and one end of the second telescopic device (33) is rotatably mounted on the other end of the swing arm (21) via the third shaft pin (211).
9. A lifting tailgate structure according to claim 8, characterized in that, The frame assembly (1) includes two mounting bases (11) arranged symmetrically, and one end of each of the two swing arms (21) is rotatably mounted on one of the mounting bases (11) via a fifth pivot pin (111).
10. A lifting tailgate structure according to claim 7, characterized in that, A third connecting shaft (53) is fixed between the two slides (52).