Back door structure and vehicle

Abstract

The invention relates to a back door structure and a vehicle, and the back door structure comprises a vehicle body which is provided with a first opening; the frame is provided with a second opening, and the second opening is communicated with the first opening; the frame is rotatably connected with the vehicle body on one side of the first opening in the z direction, and the frame is detachably fixed to the vehicle body through a first locking assembly; the back door is rotationally connected with the frame, and the back door is detachably fixed to the frame through a second locking assembly; the back door is suitable for covering the second opening; the back door structure has a first opening state and a second opening state; according to the back door structure provided by the invention, the frame is used as a conversion part for side opening and downward turning opening of the back door, so that the single back door structure can have the functions of side opening and downward turning opening at the same time, various opening modes of the back door are realized, and a double-opening type back door system is formed; the double-opening type back door system is stable in structure and can meet the requirement for opening in multiple frequencies and different modes.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile structures, and in particular to a tailgate structure and a vehicle. Background Art

[0002] The back door of a vehicle refers to the door located at the rear of the vehicle. Since the back door is connected to the trunk of the vehicle, it is also called the rear door or trunk door.

[0003] In the prior art, the opening method of the car tailgate is often one of the following methods: top opening, bottom opening or side opening. The opening method is single, and the top opening tailgate cannot expand the storage space in the vertical direction, and the side opening tailgate cannot expand the storage space in the horizontal direction. There are limitations in use, and it is difficult to adapt to complex and changeable usage scenarios. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a tailgate structure to solve the problem that the existing car tailgate opening method is single and difficult to meet the use requirements; the second purpose is to provide a vehicle.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A tailgate structure comprises: a vehicle body, provided with a first opening on one side along the x-direction; a frame, provided with a second opening extending through the vehicle body along the x-direction, the second opening being at least partially connected to the first opening; the frame is rotatably connected to the vehicle body at one side of the first opening along the z-direction, and the frame is detachably fixed to the vehicle body by means of a first locking assembly; a tailgate, rotatably connected to the frame at one end along the y-direction, and the tailgate is detachably fixed to the frame by means of a second locking assembly; the tailgate is suitable for covering the second opening; the tailgate structure has a first open state and a second open state; in the first open state, the frame drives the tailgate to flip around the y-direction relative to the vehicle body; in the second open state, the tailgate flips around the z-direction relative to the frame.

[0007] According to the above technical means, by setting a frame, the frame is set between the tailgate and the vehicle body, and the frame serves as a conversion component for the tailgate to open sideways and flip down, a single tailgate structure can have the functions of opening sideways and flipping down at the same time, thereby realizing the expansion of the storage space in multiple directions and realizing multiple opening methods of the tailgate, forming a double-opening tailgate system; and the frame serves as a supporting component, the double-opening tailgate system has a stable structure and can meet the needs of multiple frequencies and different opening methods.

[0008] Furthermore, the tailgate structure also includes a first sealing strip, which is connected to the edge of the vehicle body surrounding the first opening, and the first sealing strip is suitable for abutting the frame; and / or, the tailgate structure also includes a second sealing strip, which is connected to the edge of the frame located at the second opening, and the second sealing strip is suitable for abutting the tailgate.

[0009] According to the above technical means, by setting a second sealing strip, the second sealing strip is connected to the edge of the frame located at the second opening, so as to achieve good sealing between the frame and the back door. The frame provides an installation position for the sealing strip, the frame abuts against the first sealing strip to achieve the first sealing, and the back door abuts against the second sealing strip to achieve the second sealing, thereby ensuring good sealing of the vehicle body and adapting to the double-opening back door system, so as to have good sealing in any opening mode.

[0010] Furthermore, the frame includes a first plate and a second plate, the first plate is provided with a first sub-opening along the x-direction, and the second plate is provided with a second sub-opening along the x-direction; the first plate and the second plate are connected along the x-direction to form the frame, and the first sub-opening and the second sub-opening at least partially overlap to form the second opening.

[0011] According to the above technical means, by setting the first plate and the second plate, the first plate and the second plate are connected correspondingly along the x direction to form a frame, thereby improving the structural strength of the frame and dispersing the force to avoid bending of the frame to affect the support and sealing performance.

[0012] Furthermore, a first concave portion is formed on a side of the first plate body facing the second plate body, and a second concave portion is formed on a side of the second plate body facing the first plate body; wherein the first concave portion and the second concave portion are connected to form a cavity.

[0013] According to the above technical means, by setting a cavity in the frame, the bending and torsion resistance of the frame is greatly enhanced, ensuring the stability when the tailgate is opened sideways, and the cross-sectional shape of the frame is diamond-shaped. With the help of one side end face of the diamond-shaped frame, it is well abutted with the first sealing strip to ensure good sealing between the frame and the vehicle body.

[0014] Furthermore, the first plate body and / or the second plate body is provided with a first section on at least one side of the second opening along the z-direction; the first plate body and / or the second plate body has a second section and a third section on opposite sides of the second opening along the y-direction; the first section is rotatably connected to the vehicle body, and the second section and / or the third section is detachably fixed to the vehicle body by means of the first locking assembly.

[0015] According to the above technical means, the first section is rotatably connected to the vehicle body on one side of the first opening along the z direction, and the second section and the third section are detachably connected to the vehicle body on opposite sides of the first opening along the y direction by means of the first locking assembly, so that the second opening corresponds to the first opening in the x direction and is connected to each other, so as to avoid affecting the storage when the tailgate is opened to the side.

[0016] Furthermore, the first end of the back door along the y-direction is rotatably connected to the second section, and the second end of the back door along the y-direction is detachably fixed to the third section by means of a second locking assembly.

[0017] According to the above technical means, by making the first end of the back door along the y direction rotatably connected to the second section and the second end detachably connected to the third section, the back door is reasonably set on the frame to ensure that the back door can be smoothly flipped when it is opened to the side, and at the same time ensure that the back door can be smoothly switched between the open and closed states, thereby improving the performance of the double-opening back door system.

[0018] Furthermore, the back door is partially protruded on a side close to the vehicle body to form a protruding portion; a surface portion of the protruding portion close to the vehicle body is a sealing surface, and the second sealing strip is arranged in contact with the sealing surface.

[0019] According to the above technical means, by providing a protrusion, the back door can be sealed and abutted with the second sealing strip. Since the second sealing strip is provided at the connecting position of the first plate and the second plate around the second opening, by providing the protrusion, the distance of the back door from the second sealing strip in the x direction is compensated, so that the end face of the side of the protrusion close to the vehicle body can be smoothly abutted with the second sealing strip, so as to achieve a good seal between the back door and the frame.

[0020] Furthermore, the frame is rotatably connected to the vehicle body by means of a first hinge; the tailgate is rotatably connected to the frame by means of a second hinge; the first locking assembly includes a first lock body and a first lock buckle that are detachably hooked and matched, the first lock body is arranged at a position of the vehicle body close to the first opening, and the first lock buckle is arranged on the frame; and / or, the second locking assembly includes a second lock body and a second lock buckle that are detachably hooked and matched, the second lock body is arranged on the tailgate, and the second lock buckle is arranged on the frame.

[0021] According to the above technical means, by setting a first hinge and a second hinge, and the first hinge is set between the frame and the vehicle body, and the second hinge is set between the tailgate and the frame, the double-opening tailgate system has the function of opening sideways and downward, ensuring smooth flipping of the frame and the tailgate.

[0022] Furthermore, the tailgate structure also includes a first driving member, which is connected to the vehicle body at a position close to the first opening, and the driving end of the first driving member is connected to the frame; and / or, the tailgate structure also includes a second driving member, which is arranged on the frame, and the driving end of the second driving member is connected to the tailgate.

[0023] According to the above technical means, by setting a first driving member and a second driving member, the first driving member can drive the frame to flip accordingly around the y-axis toward or away from the vehicle body, and the second driving member can drive the back door to flip accordingly around the z-axis toward or away from the frame, thereby realizing the functions of downward opening and side opening, and thus realizing multiple opening methods of the back door.

[0024] A vehicle comprises the tailgate structure as described in any one of the above items.

[0025] According to the above technical means, the storage space can be expanded in multiple directions, multiple opening methods of the back door can be realized, and a double-opening back door system is obtained.

[0026] Beneficial effects of the present invention:

[0027] (1) The present invention provides a frame disposed between the tailgate and the vehicle body. The frame serves as a conversion component for the tailgate to open sideways and flip downwards. A single tailgate structure can simultaneously have the functions of opening sideways and flip downwards, thereby expanding the storage space in multiple directions and realizing multiple opening modes of the tailgate, thereby forming a double-opening tailgate system. Furthermore, the frame serves as a supporting component, and the double-opening tailgate system has a stable structure, which can meet the needs of multiple frequencies and different opening modes.

[0028] (2) The present invention provides a second sealing strip, which is connected to the edge of the frame at the second opening, to achieve a good seal between the frame and the back door. The frame provides a mounting position for the sealing strip. The frame abuts against the first sealing strip to achieve a first seal, and the back door abuts against the second sealing strip to achieve a second seal, thereby ensuring a good seal of the vehicle body and being suitable for a double-opening back door system, so that a good seal is achieved in either opening mode.

[0029] (3) The present invention provides a first plate and a second plate, and the first plate and the second plate are connected correspondingly along the x-direction to form a frame, thereby improving the structural strength of the frame and dispersing the force, thereby preventing the frame from bending and affecting the support and sealing performance;

[0030] (4) The present invention greatly enhances the bending and torsion resistance of the frame by providing a cavity in the frame, thereby ensuring stability when the tailgate is opened sideways. In addition, the cross-sectional shape of the frame is diamond-shaped, and one end face of the diamond-shaped frame is in good contact with the first sealing strip, thereby ensuring a good seal between the frame and the vehicle body.

[0031] (5) The first section of the present invention is rotatably connected to the vehicle body at one side of the first opening along the z-direction, and the second section and the third section are detachably connected to the vehicle body at opposite sides of the first opening along the y-direction by means of a first locking assembly, so that the second opening corresponds to and is connected to the first opening in the x-direction, thereby preventing the storage from being affected when the tailgate is opened sideways;

[0032] (6) The present invention enables the back door to be rotatably connected to the second section at the first end along the y-direction and detachably connected to the third section at the second end, so that the back door is reasonably arranged on the frame, ensuring that the back door can be smoothly flipped when the back door is opened to the side, and at the same time ensuring that the back door can be smoothly switched between the open and closed states, thereby improving the performance of the double-opening back door system;

[0033] (7) The present invention provides a protruding portion so that the back door can be in sealing contact with the second sealing strip. Since the second sealing strip is provided at the junction of the first plate and the second plate around the second opening, the protruding portion is provided to compensate for the distance between the back door and the second sealing strip in the x-direction, so that the end surface of the protruding portion close to the vehicle body can smoothly contact the second sealing strip, thereby achieving a good seal between the back door and the frame.

[0034] (8) The present invention provides a first hinge and a second hinge, wherein the first hinge is provided between the frame and the vehicle body, and the second hinge is provided between the tailgate and the frame, so that the double-opening tailgate system has the functions of opening sideways and flipping downward, ensuring smooth flipping of the frame and the tailgate;

[0035] (9) The present invention provides a first driving member and a second driving member. The first driving member can drive the frame to flip around the y-axis toward or away from the vehicle body, and the second driving member can drive the back door to flip around the z-axis toward or away from the frame, thereby realizing the functions of downward opening and side opening, thereby realizing multiple opening modes of the back door.

[0036] (10) The present invention realizes the expansion of storage space in multiple directions, realizes multiple opening methods of the back door, and obtains a double-opening back door system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of the back door structure of the present invention in a second open state;

[0038] Figure 2 is a schematic diagram of the back door structure of the present invention in a first open state;

[0039] Figure 3 This is a disassembly diagram of the framework of the present invention;

[0040] Figure 4 is a cross-sectional view of the back door structure of the present invention at the third section;

[0041] Figure 5 This is a partially disassembled schematic diagram of the back door of the present invention;

[0042] Figure 6 This is a schematic diagram of the cooperation between the back door and the frame of the present invention;

[0043] Figure 7 A schematic diagram of the cooperation between the frame of the present invention and the vehicle body;

[0044] Figure 8 A schematic diagram of locking the frame of the present invention with the vehicle body;

[0045] Figure 9 It is a partially enlarged schematic diagram of the back door structure of the present invention in the first open state;

[0046] Figure 10 Schematic diagram of the back door of the present invention being closed.

[0047] Among them, 1-vehicle body; 11-first opening; 2-frame; 21-second opening; 22-first plate; 221-first sub-opening; 222-first recess; 23-second plate; 231-second sub-opening; 232-second recess; 24-first section; 25-second section; 26-third section; 27-cavity; 28-first hinge; 3-first locking assembly; 31-first lock body; 32-first lock buckle; 4-back door; 41-protrusion; 42-sealing surface; 43-second hinge; 44-locking mouth; 5-second locking assembly; 51-second lock body; 52-second lock buckle; 6-first sealing strip; 7-second sealing strip; 8-first driving member; 9-second driving member. DETAILED DESCRIPTION

[0048] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0049] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0050] This embodiment proposes a back door structure, such as Figures 1 to 10As shown, it includes: a vehicle body 1, which is provided with a first opening 11 on one side along the x-direction; a frame 2, which is provided with a second opening 21 along the x-direction, and the second opening 21 is at least partially connected to the first opening 11; the frame 2 is rotatably connected to the vehicle body 1 on one side of the first opening 11 along the z-direction, and the frame 2 is detachably fixed to the vehicle body 1 by means of a first locking component 3; a back door 4, which is rotatably connected to the frame 2 at one end along the y-direction, and the back door 4 is detachably fixed to the frame 2 by means of a second locking component 5; the back door 4 is suitable for covering the second opening 21; the back door structure has a first open state and a second open state; in the first open state, the frame 2 drives the back door 4 to flip around the y-direction relative to the vehicle body 1; in the second open state, the back door 4 flips around the z-direction relative to the frame 2.

[0051] In this embodiment, the back door structure has a first open state, a second open state and a closed state. In the closed state, the back door 4 covers and closes the first opening 11. The back door 4 and the frame 2 form a whole. The whole cover is provided at least partially at the first opening 11. The first open state is Figure 2 In the flip-down opening state shown, the first locking assembly 3 is unlocked, and the back door 4 and the frame 2 are flipped around the y direction away from the vehicle body 1 with the rotatable connection position of the frame 2 and the vehicle body 1 as the rotation center, so that the first opening 11 is opened, and the relevant storage operation can be carried out; during this process, the back door 4 can always remain fixed to the frame 2 to avoid affecting the flip-down opening process. After the storage operation is completed, the frame 2 and the back door 4 are flipped back to their original position, and the frame 2 and the vehicle body 1 are fixed with the help of the first locking assembly 3; the second opening state is Figure 1 In the side-opening state shown, the first locking component 3 can remain locked to prevent the frame 2 from affecting the side opening of the tailgate 4, and the second locking component 5 is unlocked. With the rotatable connection position of the tailgate 4 and the frame 2 as the rotation center, the tailgate 4 is flipped around the z direction in the direction away from the vehicle body 1 to open the second opening 21; since the second opening 21 is relatively connected to the first opening 11, the first opening 11 is opened, and relevant storage operations can be performed; after the storage operation is completed, the tailgate 4 is flipped back and reset, and the tailgate 4 is fixed to the frame 2 with the help of the second locking component 5.

[0052] In this embodiment, by setting a frame 2, the frame 2 is set between the tailgate 4 and the vehicle body 1, and the frame 2 serves as a conversion component for the side opening and downward opening of the tailgate 4. A single tailgate structure can have the functions of side opening and downward opening at the same time, thereby realizing the expansion of the storage space in multiple directions and realizing multiple opening methods of the tailgate 4, forming a double-opening tailgate 4 system; and the frame 2 serves as a supporting component, and the structure of the double-opening tailgate 4 system is stable, which can meet the needs of multiple frequencies and different opening methods.

[0053] In this embodiment, if Figure 1 、 Figure 2 、 Figure 4 As shown, the tailgate structure also includes a first sealing strip 6, which is connected to the edge of the vehicle body 1 around the first opening 11, and the first sealing strip 6 is suitable for being abutted against the frame 2; and / or, the tailgate structure also includes a second sealing strip 7, which is connected to the edge of the frame 2 located at the second opening 21, and the second sealing strip 7 is suitable for being abutted against the tailgate 4.

[0054] Specifically, the first sealing strip 6 is clamped on the edge plate of the vehicle body 1 around the first opening 11. The first sealing strip 6 has a tubular structure, which is set toward the frame 2 to abut against the frame 2 to achieve a good seal; the second sealing strip 7 is clamped on the edge plate of the frame 2 at the second opening 21. The second sealing strip 7 is extended along the edge of the second opening 21. The second sealing strip 7 has a tubular structure, which is set toward the tail door 4 to abut against the tail door 4 to achieve a good seal.

[0055] In this embodiment, a second sealing strip 7 is provided, and the second sealing strip 7 is connected to the edge of the frame 2 located at the second opening 21, so as to achieve a good seal between the frame 2 and the tailgate 4. The frame 2 provides an installation position for the sealing strip, and the frame 2 abuts against the first sealing strip 6 to achieve a first seal, and the tailgate 4 abuts against the second sealing strip 7 to achieve a second seal, thereby ensuring a good seal of the vehicle body 1 and being adapted to the double-opening tailgate 4 system, so as to have a good seal in any opening mode.

[0056] In this embodiment, if Figure 3 As shown, the frame 2 includes a first plate 22 and a second plate 23. The first plate 22 is provided with a first sub-opening 221 along the x-direction, and the second plate 23 is provided with a second sub-opening 231 along the x-direction. The first plate 22 and the second plate 23 are connected along the x-direction to form the frame 2, and the first sub-opening 221 and the second sub-opening 231 at least partially overlap to form the second opening 21.

[0057] Specifically, the first plate 22 and the second plate 23 can be but are not limited to U-shaped plates, and the frame 2 can be composed of but is not limited to the first plate 22 and the second plate 23 connected correspondingly along the x direction; the edge plate of the first plate 22 surrounding the first sub-opening 221 is connected to the edge plate of the second plate 23 surrounding the second sub-opening 231, so that the first sub-opening 221 and the second sub-opening 231 are overlapped, and the second sealing strip 7 is connected to the first plate 22 and the second plate 23 at the plate bodies surrounding the second opening 21.

[0058] It is worth noting that when the frame 2 is connected to the vehicle body 1, the first plate 22 is arranged closer to the vehicle body 1 than the second plate 23, and the second plate 23 is located on the side of the first plate 22 away from the vehicle body 1; the first plate 22 is in contact with the first sealing strip 6, and the tailgate 4 is rotatably connected to the second plate 23.

[0059] In this embodiment, a first plate 22 and a second plate 23 are provided, and the first plate 22 and the second plate 23 are connected correspondingly along the x direction to form a frame 2, thereby improving the structural strength of the frame 2 and dispersing the force to prevent the frame 2 from bending and affecting the support and sealing performance.

[0060] In this embodiment, if Figure 3 As shown, the first plate body 22 has a first recessed portion 222 formed on one side facing the second plate body 23 , and the second plate body 23 has a second recessed portion 232 formed on one side facing the first plate body 22 ; wherein the first recessed portion 222 and the second recessed portion 232 are connected to form a cavity 27 .

[0061] Specifically, the first plate body 22 can be, but is not limited to, composed of two plates connected at a predetermined angle to form a first recess 222 between the two plates; the second plate body 23 can be, but is not limited to, composed of two plates connected at a predetermined angle to form a second recess 232 between the two plates; the first recess 222 and the second recess 232 are correspondingly connected to form a cavity 27; on the one hand, the cavity 27 enhances the bending and torsional resistance of the frame 2, such as the hollow steel pipe has stronger bending resistance than the solid steel rod, and the bending and torsional resistance of the frame 2 with the cavity 27 is greatly enhanced, and it serves as a supporting component for the tailgate 4 when opening sideways, ensuring the stability of the tailgate 4 when opening sideways, thereby improving the service life of the double-opening tailgate 4 system; on the other hand, the first plate body 22 is connected to the second plate body 23, and the cross-sectional shape of the frame 2 is a rhombus, and the end face of the rhombus-shaped frame 2 facing the vehicle body 1 serves as a sealing end face to abut against the first sealing strip 6 to ensure a good seal with the vehicle body 1.

[0062] In this embodiment, by providing a cavity 27 at the frame 2, the bending and torsion resistance of the frame 2 is greatly enhanced, thereby ensuring the stability when the tailgate 4 is opened to the side, and the cross-sectional shape of the frame 2 is diamond-shaped. With the help of one side end face of the diamond-shaped frame 2 and the good abutment fit with the first sealing strip 6, a good seal between the frame 2 and the vehicle body 1 is ensured.

[0063] In this embodiment, if Figure 3As shown, the first plate body 22 and / or the second plate body 23 is provided with a first section 24 on at least one side of the second opening 21 along the z-direction; the first plate body 22 and / or the second plate body 23 has a second section 25 and a third section 26 on opposite sides of the second opening 21 along the y-direction; the first section 24 is rotatably connected to the vehicle body 1, and the second section 25 and / or the third section 26 is detachably fixed to the vehicle body 1 by means of a first locking assembly 3.

[0064] Specifically, the first plate body 22 and the second plate body 23 can be but not limited to U-shaped plates, and one or both of the first plate body 22 and the second plate body 23 form a first section 24 on one side of the second opening 21 along the z-direction. In this embodiment, both the first plate body 22 and the second plate body 23 have a first section 24 and are correspondingly connected; one or both of the first plate body 22 and the second plate body 23 form a second section 25 and a third section 26 on opposite sides of the second opening 21 along the y-direction. In this embodiment, both the first plate body 22 and the second plate body 23 have a second section 25 and a third section 26, and the second section 25 of the first plate body 22 is correspondingly connected to the second section 25 of the second plate body 23, and the third section 26 of the first plate body 22 is correspondingly connected to the third section 26 of the second plate body 23.

[0065] In the embodiment, the first section 24 is rotatably connected to the vehicle body 1 on one side of the first opening 11 along the z-direction, and the second section 25 and the third section 26 are detachably connected to the vehicle body 1 on opposite sides of the first opening 11 along the y-direction by means of the first locking assembly 3, so that the second opening 21 corresponds to the first opening 11 in the x-direction and is connected to each other, so as to avoid affecting the storage when the tailgate 4 is opened to the side.

[0066] In this embodiment, by providing the first section 24, the second section 25 and the third section 26, and the first section 24 being rotatably connected to the vehicle body 1, it is ensured that when the double-opening tailgate 4 system is flipped down to open, the frame 2 can be smoothly flipped over; one of the second section 25 and the third section 26 or both are detachably connected to the vehicle body 1, to ensure that when the double-opening tailgate 4 system is flipped sideways to open, the frame 2 is stably fixed to the vehicle body 1, to prevent the frame 2 from affecting the side opening of the tailgate 4, and to ensure that the double-opening tailgate 4 system has excellent performance.

[0067] In this embodiment, if Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 As shown, the first end of the back door 4 along the y-direction is rotatably connected to the second section 25 , and the second end of the back door 4 along the y-direction is detachably fixed to the third section 26 by means of the second locking assembly 5 .

[0068] Specifically, the first end of the back door 4 along the y-direction is rotatably connected to the second section 25, and can be specifically connected to the second section 25 of the second plate 23, to ensure that the back door 4 can be smoothly flipped when the back door 4 is opened to the side; the second end of the back door 4 along the y-direction is detachably fixed to the third section 26 by means of the second locking assembly 5, to ensure that the back door 4 can smoothly switch between the open and closed states.

[0069] In this embodiment, by making the first end of the back door 4 along the y direction rotatably connected to the second section 25 and the second end detachably connected to the third section 26, the back door 4 is reasonably set at the frame 2, ensuring that the back door 4 can be smoothly flipped when the back door 4 is opened to the side, and at the same time ensuring that the back door 4 can be smoothly switched between the open and closed states, thereby improving the performance of the double-opening back door 4 system.

[0070] In this embodiment, if Figure 5 As shown, the tailgate 4 is partially protruded near the vehicle body 1 to form a protruding portion 41 ; a surface of the protruding portion 41 near the vehicle body 1 is a sealing surface 42 , and the second sealing strip 7 is disposed in contact with the sealing surface 42 .

[0071] Specifically, when the tailgate 4 is in the closed state, the tailgate 4 is fixed to the frame 2, and the end surface of the protrusion 41 close to the vehicle body 1 is abutted against the second sealing strip 7, and the second plate 23 surrounds the peripheral side of the protrusion 41, so that a good seal is formed between the tailgate 4 and the frame 2; wherein, the end surface of the protrusion 41 close to the vehicle body 1 is the sealing surface 42, and the sealing surface 42 is abutted against the tubular structure of the second sealing strip 7 to achieve a good seal.

[0072] In this embodiment, by providing a protrusion 41, the back door 4 can be sealed and abutted with the second sealing strip 7. Since the second sealing strip 7 is provided at the connecting position of the first plate 22 and the second plate 23 around the second opening 21, by providing the protrusion 41, the distance between the back door 4 and the second sealing strip 7 in the x direction is compensated, so that the end surface of the side of the protrusion 41 close to the vehicle body 1 can be smoothly abutted with the second sealing strip 7, so as to achieve good sealing between the back door 4 and the frame 2.

[0073] In this embodiment, if Figure 6 、 Figure 7 As shown, the frame 2 is rotatably connected to the vehicle body 1 by means of a first hinge 28 ; the tailgate 4 is rotatably connected to the frame 2 by means of a second hinge 43 .

[0074] Specifically, one end of the first hinge 28 is connected to the side of the second plate 23 close to the tailgate 4, and the other end is connected to the vehicle body 1, so that the frame 2 can be rotatably connected to the vehicle body 1, and the hinge axis of the first hinge 28 is arranged parallel to the y direction, so that the frame 2 can be flipped around the y direction; wherein the first plate 22 and the second plate 23 are both provided with notches at the hinge setting position, the first hinge 28 is connected to the second plate 23 at the notch, and the hinge is set through the notch of the first plate 22, thereby improving the compactness of the structure and avoiding interference to a certain extent; the second hinge 43 is connected to the second plate 23 on one side and connected to the tailgate 4 on the other side, and the hinge axis of the second hinge 43 is arranged parallel to the z direction, so that the tailgate 4 can be flipped around the z direction.

[0075] In this embodiment, by setting a first hinge 28 and a second hinge 43, and the first hinge 28 is set between the frame 2 and the vehicle body 1, and the second hinge 43 is set between the tailgate 4 and the frame 2, the double-opening tailgate 4 system has the function of opening sideways and downward, ensuring that the frame 2 and the tailgate 4 can be flipped smoothly.

[0076] In this embodiment, if Figure 1 、 Figure 2 As shown, the tailgate structure also includes a first driving member 8, which is connected to the vehicle body 1 near the first opening 11, and the driving end of the first driving member 8 is connected to the frame 2; and / or, the tailgate structure also includes a second driving member 9, which is arranged on the frame 2, and the driving end of the second driving member 9 is connected to the tailgate 4.

[0077] Specifically, the first driving member 8 is rotatably connected to the vehicle body 1, and the driving end of the first driving member 8 is connected to the frame 2. The driving end of the first driving member 8 can be extended or shortened accordingly to flip the frame 2 toward the side away from or close to the vehicle body 1; the first driving member 8 can be but not limited to an electric strut, the two ends of the electric strut are hinged to the bracket, and the bracket is connected to the vehicle body 1 and the frame 2; the second driving member 9 is arranged inside the cavity 27 of the frame 2, and the driving end of the second driving member 9 extends through the second plate 23 to connect with the tailgate 4. The driving end of the second driving member 9 can be extended or shortened accordingly to flip the tailgate 4 toward the side away from or close to the frame 2; the second driving member 9 can be but not limited to having an electric drive.

[0078] It is worth mentioning that a cable is also provided between the vehicle body 1 and the frame 2. The two ends of the cable are respectively hooked and connected to the vehicle body 1 and the frame 2. The cable plays a limiting role. When the tailgate structure is in a closed state, the cable is freely bent. When the frame 2 and the tailgate 4 are flipped down to the maximum opening, the cable is straightened, which plays a stopping and limiting role on the frame 2 and the tailgate 4, preventing the frame 2 and the tailgate 4 from continuing to flip toward the side away from the vehicle body 1.

[0079] In this embodiment, by setting a first driving member 8 and a second driving member 9, the first driving member 8 can drive the frame 2 to flip accordingly around the y-axis toward or away from the vehicle body 1, and the second driving member 9 can drive the back door 4 to flip accordingly around the z-axis toward or away from the frame 2, thereby realizing the functions of downward opening and side opening, and thus realizing multiple opening methods of the back door 4.

[0080] In this embodiment, if Figure 4 、 Figure 8 As shown, the first locking assembly 3 includes a first lock body 31 and a first lock buckle 32 that are detachably hooked and matched, the first lock body 31 is arranged at a position of the vehicle body 1 close to the first opening 11, and the first lock buckle 32 is arranged on the frame 2; and / or, the second locking assembly 5 includes a second lock body 51 and a second lock buckle 52 that are detachably hooked and matched, the second lock body 51 is arranged on the tailgate 4, and the second lock buckle 52 is arranged on the frame 2.

[0081] Specifically, the first lock catch 32 can be set at the first plate 22, the first lock body 31 and the first lock catch 32 can be but not limited to hooked or meshed connection, the first lock body 31 and the first lock catch 32 cooperate together, so that the first lock component 3 is in a locked state, the frame 2 is fixed to the vehicle body 1, the first lock body 31 and the first lock catch 32 are separated, so that the first lock component 3 is in an unlocked state, and the frame 2 can rotate relative to the vehicle body 1; the second lock catch 52 can be set at the second plate 23, the second lock body 51 is set inside the tailgate 4, and the tailgate 4 has a locking opening 44 at the position corresponding to the second lock body 51, the second lock catch 52 passes through the locking opening 44 and cooperates with the second lock body 51, the second lock body 51 and the second lock catch 52 can be but not limited to hooked or meshed connection.

[0082] It is worth noting that the frame 2 is provided with a reinforcement at the connection position with the first hinge 28, the second hinge 43, the first lock 32, the second lock 52, the first drive member 8 and the cable. The reinforcement can be a single plate body, which is arranged between the above-mentioned components and the frame 2 to improve the connection strength between the above-mentioned components and the frame 2, and nuts are pre-welded at the reinforcement member to provide installation points for the above-mentioned components.

[0083] In this embodiment, a first locking component 3 and a second locking component 5 are provided, and the unlocked or locked state of the first locking component 3 and the second locking component 5 is related to the open or closed state of the double-opening tailgate 4 system, thereby ensuring good coordination between the frame 2 and the vehicle body 1 and the tailgate 4.

[0084] The back door structure of this embodiment is used in the following manner: when the back door structure is in a closed state, Figure 10As shown, the first locking assembly 3 and the second locking assembly 5 are both in the locked state, the frame 2 abuts against the first sealing strip 6, and the back door 4 abuts against the second sealing strip 7, ensuring a good seal of the back door structure; when the back door 4 needs to be opened, the user can choose to open it sideways or flip it down according to needs; if the user chooses to flip it down, the first locking assembly 3 is unlocked, the second locking assembly 5 remains locked, and the first driving member 8 drives the frame 2 and the back door 4 thereon to flip toward the side away from the vehicle body 1, so that the first opening 11 is opened, and the storage operation can be carried out; after the operation is completed, the first driving member 8 controls the frame 2 and the back door 4 thereon to reset, the first lock catch 32 cooperates with the first lock body 31 to lock, and the back door structure re-enters the closed state; if the user chooses to open it sideways, the second locking assembly 5 is unlocked, the first locking assembly 3 remains locked, and the second driving member 9 drives the back door 4 to flip toward the side away from the frame 2, so that the second opening 21 is opened, and the storage operation can be carried out; after the operation is completed, the second driving member 9 controls the back door 4 to reset, the second lock catch 52 cooperates with the second lock body 51 to lock, and the back door structure re-enters the closed state.

[0085] This embodiment also provides a vehicle, comprising a tailgate structure as described in any one of the above items.

[0086] The vehicle using this embodiment can expand the storage space in multiple directions, realize multiple opening methods of the back door, and obtain a double-opening back door system.

[0087] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A back door structure, characterized in that: include: A vehicle body (1) is provided with a first opening (11) on one side along the x-direction; The frame (2) is provided with a second opening (21) extending through it along the x-direction, the second opening (21) being at least partially connected to the first opening (11); the frame (2) is rotatably connected to the vehicle body (1) at one side of the first opening (11) along the z-direction, and the frame (2) is detachably fixed to the vehicle body (1) by means of a first locking assembly (3); A back door (4) is rotatably connected to the frame (2) at one end along the y direction, and the back door (4) is detachably fixed to the frame (2) by means of a second locking assembly (5); the back door (4) is adapted to cover the second opening (21); The back door structure has a first open state and a second open state; In the first open state, the frame (2) drives the tailgate (4) to flip around the y direction relative to the vehicle body (1); In the second open state, the tailgate (4) is flipped around the z-direction relative to the frame (2).

2. The back door structure according to claim 1, characterized in that: The back door structure further comprises a first sealing strip (6), the first sealing strip (6) being connected to an edge of the vehicle body (1) surrounding the first opening (11), and the first sealing strip (6) being adapted to be disposed in abutment with the frame (2); and / or, The back door structure further comprises a second sealing strip (7), the second sealing strip (7) being connected to the edge of the frame (2) located at the second opening (21), and the second sealing strip (7) being adapted to be disposed in contact with the back door (4).

3. The back door structure according to claim 2, characterized in that: The frame (2) comprises a first plate (22) and a second plate (23); the first plate (22) is provided with a first sub-opening (221) extending through the first plate along the x-direction; and the second plate (23) is provided with a second sub-opening (231) extending through the second plate along the x-direction. The first plate (22) and the second plate (23) are connected along the x-direction to form the frame (2); the first sub-opening (221) and the second sub-opening (231) at least partially overlap to form the second opening (21).

4. The back door structure according to claim 3, characterized in that: A first concave portion (222) is formed on a side of the first plate body (22) facing the second plate body, and a second concave portion (232) is formed on a side of the second plate body (23) facing the first plate body. The first recess (222) and the second recess (232) are connected to form a cavity (27).

5. The back door structure according to claim 4, characterized in that: The first plate (22) and / or the second plate (23) is provided with a first section (24) on at least one side of the second opening (21) along the z-direction; The first plate (22) and / or the second plate (23) have a second section (25) and a third section (26) on opposite sides of the second opening (21) along the y-direction; The first section (24) is rotatably connected to the vehicle body (1), and the second section (25) and / or the third section (26) are detachably fixed to the vehicle body (1) by means of the first locking assembly (3).

6. The back door structure according to claim 5, characterized in that: The first end of the back door (4) along the y direction is rotatably connected to the second section (25), and the second end of the back door (4) along the y direction is detachably fixed to the third section (26) by means of a second locking assembly (5).

7. The back door structure according to any one of claims 2 to 6, characterized in that: The tailgate (4) is partially protruded on one side close to the vehicle body (1), forming a protruding portion (41); A portion of the surface of the protruding portion (41) close to the vehicle body (1) is a sealing surface (42), and the second sealing strip (7) is arranged in contact with the sealing surface (42).

8. The back door structure according to claim 1, characterized in that: The frame (2) is rotatably connected to the vehicle body (1) by means of a first hinge (28); The back door (4) is rotatably connected to the frame (2) by means of a second hinge (43); The first locking assembly (3) comprises a first lock body (31) and a first lock buckle (32) that are detachably hooked, the first lock body (31) being arranged at a position of the vehicle body (1) close to the first opening (11), and the first lock buckle (32) being arranged on the frame (2); and / or, The second locking assembly (5) comprises a detachably hooked second lock body (51) and a second lock catch (52); the second lock body (51) is arranged on the back door (4); and the second lock catch (52) is arranged on the frame (2).

9. The back door structure according to claim 8, characterized in that: The tailgate structure further comprises a first driving member (8), the first driving member (8) being connected to the vehicle body (1) at a position close to the first opening (11), the driving end of the first driving member (8) being connected to the frame (2); and / or, The back door structure further comprises a second driving member (9), wherein the second driving member (9) is arranged on the frame (2), and a driving end of the second driving member (9) is connected to the back door (4).

10. A vehicle, characterized in that: The invention comprises a back door structure as described in any one of claims 1 to 9.

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