Vehicle tailgate structure

Abstract

The present application relates to a kind of vehicle back door structure, including vehicle body;Frame, second opening is provided through;Back door, connect to frame;Corner, be provided in back door;First sealing strip;Second sealing strip, including first strip and second strip;First strip and back door abutment arrangement, second strip is clamped between corner and first sealing strip;Vehicle back door structure provided by the present application, since frame is between vehicle body and back door, first sealing strip cannot realize sealing to back door, by setting second sealing strip at frame, second sealing strip includes first strip and second strip, when back door is closed, back door and first strip abutment cooperation, realize the good sealing of back door;Second strip is clamped between first sealing strip and corner, in turn effectively block the leakage channel between sealing strip, frame and corner, guarantee the sealing performance of back door.

Description

Technical Field

[0001] This invention relates to the field of automotive structural technology, specifically to a vehicle tailgate structure. Background Technology

[0002] The tailgate is the door located at the rear of a vehicle. Since the rear of the tailgate connects to the vehicle's trunk, it is also called the tailgate or trunk door.

[0003] A double-opening tailgate structure refers to a tailgate that has both side-opening and downward-opening functions. Since the double-opening tailgate structure uses a frame as a conversion component for side-opening and downward-opening of the tailgate, and the frame is set between the tailgate and the vehicle body, the tailgate often has a stepped protrusion on the inside that cooperates with the frame.

[0004] The tailgate inner trim strip is a strip-shaped component installed on the inner edge of the door, near the window or the edge of the door trim panel. Because the tailgate has a certain height difference in the stepped protrusion, the tailgate inner trim strip forms a corner near the protrusion.

[0005] In existing technologies, sealing strips are often installed on the vehicle body to ensure the sealing performance of the tailgate. However, in the double-opening tailgate structure, the frame between the tailgate and the vehicle body makes it difficult to achieve a good seal at the tailgate. In addition, when the double-opening tailgate structure is closed, the sealing strip is pressed against the corner of the tailgate frame and the inner strip of the tailgate, forming a large water leakage channel between the sealing strip, the tailgate frame and the corner, which affects the tailgate sealing and may even easily cause water to flow from outside the vehicle into the vehicle. Summary of the Invention

[0006] The purpose of this invention is to provide a vehicle tailgate structure to solve the problem in the existing double-opening tailgate structure that it is difficult to achieve a good seal at the tailgate, and that a large water leakage channel is formed between the sealing strip, tailgate frame and corner joint, which affects the tailgate sealing.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A vehicle tailgate structure includes: a vehicle body with a first opening on a first side; a frame connected to the vehicle body and having a second opening therethrough, the second opening being at least partially communicating with the first opening; a tailgate connected to the frame and adapted to cover the second opening; a corner joint disposed on the tailgate; a first sealing strip connected to the vehicle body; and a second sealing strip connected to the edge of the frame surrounding the second opening; the second sealing strip includes a first strip and a second strip connected together, the first strip being adapted to abut against the tailgate, and the second strip being adapted to be sandwiched between the corner joint and the first sealing strip.

[0009] According to the above technical means, since the frame is located between the vehicle body and the tailgate, and the frame abuts against the first sealing strip, the first sealing strip cannot seal the tailgate. By setting a second sealing strip at the frame, the second sealing strip includes a first strip body and a second strip body. The first strip body is set around the edge of the second opening. When the tailgate is closed, the tailgate and the first strip body abut against each other to achieve a good seal at the tailgate. When the tailgate is closed, the first sealing strip is pressed against the second strip body, and the second strip body is pressed against the corner. The second strip body is sandwiched between the first sealing strip and the corner, thereby effectively blocking the water leakage channel between the sealing strip, the frame and the corner, and ensuring the sealing performance of the tailgate.

[0010] Furthermore, a portion of the tailgate panel near the vehicle body protrudes towards the vehicle body, forming a protrusion; a first recess is formed on the side of the corner near the tailgate, the first recess engaging with at least a portion of the protrusion so that the corner and at least a portion of the protrusion are opposite each other; the second strip includes a first clamping portion and a first bubble tube connected together, the first clamping portion being connected to the frame; a second recess is formed on the side of the first bubble tube near the tailgate, the second recess engaging with the side of the corner opposite to the first recess.

[0011] According to the above technical means, the second recess is abutted against the side surface of the corner opposite to the first recess. By cooperating with the corner, the sealing performance between the corner, the first sealing strip and the second strip is improved. For protrusions of different heights, the second strip can be compressed and undergo elastic deformation to ensure a good seal between the first sealing strip, the corner and the second strip. In this way, it can accommodate various different height differences of the protrusions and ensure good sealing performance.

[0012] Furthermore, the first bubble tube includes a base bubble tube and a sub-bubble tube. The base bubble tube is connected to the first clamping part, and the sub-bubble tube is connected to the side of the base bubble tube away from the clamping part. At the connection position between the sub-bubble tube and the base bubble tube, the tube body of the sub-bubble tube and / or the base bubble tube is recessed to form a second recess between the sub-bubble tube and the base bubble tube.

[0013] According to the above-mentioned technical means, on the side of the first bubble tube near the corner, and at the connection position between the sub-bubble tube and the base bubble tube, one or both of the base bubble tube and the sub-bubble tube are recessed to form a second recess between the base bubble tube and the sub-bubble tube. The second recess is abutted against the side surface of the corner tube opposite to the first recess. By means of the cooperation between the second recess and the corner tube, the sealing performance between the corner tube, the first sealing strip and the second strip body is improved.

[0014] Furthermore, the vehicle body has a third opening on a second side adjacent to the first side, and the third opening is connected to the first opening; the first sealing strip includes a first segment and a second segment continuously arranged, the first segment being connected to the edge of the vehicle body located at the first opening, and the second segment being connected to the edge of the third opening located at the third opening; the first segment includes a first sub-segment and a second sub-segment connected at a predetermined angle; the frame is adapted to abut against the first sub-segment, and the second strip is adapted to be sandwiched between the angle and the second sub-segment.

[0015] According to the above technical means, the second sealing strip is an annular strip. The annular strip includes a first segment disposed at the edge of the first opening and a second segment disposed at the edge of the third opening. The first segment also includes a first sub-segment and a second sub-segment disposed continuously. One end of the second sub-segment is connected to the first sub-segment at a predetermined angle. The strip of the second sub-segment is inclined relative to the z-direction towards the center of the first opening, so that the position of the second sub-segment corresponds to the angle and the position of the second strip in the x-direction, thereby achieving a good sealing fit.

[0016] Furthermore, the first strip includes a second snap-fit ​​portion and a second bubble tube connected together, the second snap-fit ​​portion being connected to the frame, and the second bubble tube being adapted to abut against the back door.

[0017] According to the above technical means, by setting a second snap-fit ​​part and a second bubble tube, the second snap-fit ​​part is snapped into the frame, and the second bubble tube is connected to the side of the second snap-fit ​​part near the back door, so as to ensure that the second bubble tube and the back door abut and cooperate to achieve a good seal.

[0018] Furthermore, the tailgate includes an inner panel and an outer panel, the inner panel and the outer panel are connected, the protrusion is formed in the inner panel, and a cavity is formed between the protrusion and the outer panel; a lifting mechanism is provided in the cavity; the vehicle tailgate structure also includes a window, the window passes through the tailgate and is connected to the lifting mechanism, and the lifting mechanism is adapted to raise and lower the window.

[0019] According to the above technical means, by setting an inner panel and an outer panel, with the inner panel located on the side of the outer panel closer to the vehicle body, and a protrusion formed on the inner panel, the first strip abuts against the side of the protrusion away from the outer panel, so as to achieve a good seal at the tailgate.

[0020] Furthermore, the inner panel has an inner clip strip on the side near the window, and the inner clip strip extends along the y-direction; at least two of the corner joints are respectively connected to opposite sides of the inner clip strip along the extension direction.

[0021] According to the above technical means, by setting an inner clamping strip, and connecting corners on opposite sides of the inner clamping strip along the y direction, the corners are positioned opposite to the part of the plate near the inner clamping strip of the protrusion, ensuring a good fit.

[0022] Furthermore, the first segment also has a third sub-segment, which is connected at a predetermined angle to the side of the second sub-segment away from the first sub-segment; the surface of the window near the vehicle body is adapted to abut against the third sub-segment.

[0023] According to the above-mentioned technical means, when the window is raised, the third segment abuts against the surface of the window closest to the vehicle body to achieve a good seal at the window.

[0024] Furthermore, the vehicle tailgate structure also includes a top plate that covers the third opening and is adapted to abut against the second section.

[0025] According to the above technical means, the top plate covers the third opening and abuts against the second section to achieve a good seal at the top plate.

[0026] Furthermore, a third sealing strip is provided on the side of the roof panel near the first opening, and the side of the window away from the tailgate is adapted to abut against the third sealing strip; and / or, a fourth sealing strip is provided on the vehicle body near the third sub-segment, and the edge of the window is adapted to abut against the fourth sealing strip.

[0027] According to the above technical means, after the window is raised, the side of the window away from the tailgate abuts against the third sealing strip, and the opposite sides of the window near the third sub-section abut against the fourth sealing strip, so as to achieve a good seal at the window.

[0028] The beneficial effects of this invention are:

[0029] (1) Since the frame is located between the vehicle body and the tailgate, and the frame is abutted against the first sealing strip, the first sealing strip cannot seal the tailgate. By setting a second sealing strip at the frame, the second sealing strip includes a first strip body and a second strip body. The first strip body is set around the edge of the second opening. When the tailgate is closed, the tailgate and the first strip body abut against each other to achieve a good seal at the tailgate. When the tailgate is closed, the first sealing strip is pressed against the second strip body, and the second strip body is pressed against the corner. The second strip body is sandwiched between the first sealing strip and the corner, thereby effectively blocking the water leakage channel between the sealing strip, the frame and the corner, and ensuring the sealing performance of the tailgate.

[0030] (2) In this invention, the second recess is abutted against the side surface of the corner opposite to the first recess. By means of the cooperation between the second recess and the corner, the sealing performance between the corner, the first sealing strip and the second strip is improved. For protrusions of different heights, the second strip can be compressed and undergo elastic deformation to ensure a good seal between the first sealing strip, the corner and the second strip. In this way, it can accommodate various different height differences of the protrusions and ensure good sealing performance.

[0031] (3) In this invention, on the side of the first bubble tube near the corner, and at the connection position between the sub-bubble tube and the base bubble tube, one or both of the base bubble tube and the sub-bubble tube are recessed to form a second recess between the base bubble tube and the sub-bubble tube. The second recess is abutted against the side surface of the corner tube away from the first recess. By means of the cooperation between the second recess and the corner tube, the sealing performance between the corner tube, the first sealing strip and the second strip body is improved.

[0032] (4) In this invention, the second sealing strip is an annular strip. The annular strip includes a first segment disposed at the edge of the first opening and a second segment disposed at the edge of the third opening. The first segment also includes a first sub-segment and a second sub-segment disposed continuously. One end of the second sub-segment is connected to the first sub-segment at a predetermined angle. The strip of the second sub-segment is inclined relative to the z-direction toward the center of the first opening, so that the second sub-segment corresponds to the position of the connecting angle and the second strip in the x-direction, thereby achieving a good sealing fit.

[0033] (5) The present invention provides a second snap-fit ​​part and a second bubble tube. The second snap-fit ​​part is snapped into the frame and the second bubble tube is connected to the side of the second snap-fit ​​part near the back door, so as to ensure that the second bubble tube and the back door abut against each other and achieve good sealing.

[0034] (6) The present invention provides an inner panel and an outer panel, with the inner panel located on the side of the outer panel close to the vehicle body, and a protrusion formed on the inner panel. The first strip abuts against the side of the protrusion away from the outer panel to achieve a good seal at the tailgate.

[0035] (7) The present invention provides an inner clamping strip, and the inner clamping strip is connected to the opposite sides along the y direction with corners, so that the corners are set opposite to the part of the plate near the inner clamping strip of the protrusion, thus ensuring a good fit.

[0036] (8) When the window is raised, the third segment of the present invention abuts against the surface of the window near the vehicle body to achieve a good seal at the window.

[0037] (9) In this invention, the top plate covers the third opening and abuts against the second section to achieve a good seal at the top plate;

[0038] (10) In this invention, after the window is raised, the side of the window away from the tailgate abuts against the third sealing strip, and the opposite sides of the window near the third sub-section abut against the fourth sealing strip, so as to achieve good sealing at the window. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram illustrating the fit between the first sealing strip, the frame, and the corner joint in the prior art of this invention;

[0041] Figure 2 This is an exploded view of the vehicle tailgate structure of the present invention;

[0042] Figure 3 This is a side-opening schematic diagram of the vehicle tailgate structure of the present invention;

[0043] Figure 4 This is a schematic diagram of the downward opening of the vehicle tailgate structure of the present invention;

[0044] Figure 5 This is an exploded view of the first sealing strip, the second sealing strip, and the inner clamping strip of the present invention;

[0045] Figure 6 This is a schematic diagram showing the cooperation of the first sealing strip, the second sealing strip, and the inner clamping strip of the present invention;

[0046] Figure 7 This is a schematic diagram showing the cooperation of the first sealing strip, the second sealing strip, and the inner clamping strip at the back door of the present invention;

[0047] Figure 8 For the present invention Figure 7 Enlarged view of the mating position of the first sealing strip, the second sealing strip, and the inner clamping strip;

[0048] Figure 9 This is a cross-sectional view of the first sealing strip, the second sealing strip, and the inner clamping strip of the present invention at their mating positions;

[0049] Figure 10 This is a cross-sectional schematic diagram of the second body of the present invention;

[0050] Figure 11 This is a cross-sectional schematic diagram of the first body of the present invention;

[0051] Figure 12 This is a schematic diagram of the sealing fit between the first sealing strip, the second sealing strip, the frame, and the back door of the present invention.

[0052] Among them, 1-vehicle body; 11-first opening; 12-third opening; 13-fourth sealing strip; 2-frame; 21-second opening; 3-back door; 31-protrusion; 32-inner panel; 33-outer panel; 34-cavity; 35-outer clamping strip; 36-inner clamping strip; 4-corner joint; 41-first recess; 5-first sealing strip; 51-first segment; 511-first sub-segment; 512-second sub-segment; 513-third sub-segment; 52-second segment; 6-second sealing strip; 61-first strip body; 611-second snap-fit ​​part; 612-second bubble tube; 62-second strip body; 621-first clamping part; 622-first bubble tube; 6221-base bubble tube; 6222-sub-bubble tube; 623-second recess; 7-lifting mechanism; 8-window; 9-roof panel; 91-third sealing strip. Detailed Implementation

[0053] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0054] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0055] This embodiment proposes a vehicle tailgate structure, such as... Figures 1 to 12 As shown, it includes: a vehicle body 1 with a first opening 11 on a first side; a frame 2 connected to the vehicle body 1 and having a second opening 21 through it, the second opening 21 being at least partially connected to the first opening 11; a tailgate 3 connected to the frame 2 and adapted to cover the second opening 21; a corner joint 4 disposed on the tailgate 3; a first sealing strip 5 connected to the vehicle body 1; and a second sealing strip 6 connected to the edge of the frame 2 surrounding the second opening 21. The second sealing strip 6 includes a first strip 61 and a second strip 62 connected together, the first strip 61 being adapted to abut against the tailgate 3, and the second strip 62 being adapted to be sandwiched between the corner joint 4 and the first sealing strip 5.

[0056] It should be noted that 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 also detachably fixed to the vehicle body 1 by means of a first locking component. The tailgate 3 is rotatably connected to the frame 2 at one end along the y-direction, and the tailgate 3 is also detachably fixed to the frame 2 by means of a second locking component. The frame 2 serves as a conversion component for the tailgate 3 to open to the side and to the bottom, and the vehicle tailgate structure has a side-opening state and a bottom-opening state. In the side-opening state, the first locking component is unlocked, and the second locking component remains locked. The frame 2 drives the tailgate 3 to rotate relative to the vehicle body 1 around the y-direction. In the bottom-opening state, the first locking component remains locked, the second locking component is unlocked, and the tailgate 3 rotates relative to the frame 2 around the z-direction. The connection between the frame 2 and the vehicle body 1, and between the tailgate 3 and the frame 2, can be, but is not limited to, rotatable connections via hinges. The first locking component and the second locking component can be, but are not limited to, existing components, such as cooperating mechanical lock hooks and latches.

[0057] Specifically, by setting frame 2 as a conversion component for the side-opening and downward-opening of the tailgate 3, the tailgate structure of the vehicle has a dual-opening function of side-opening and downward-opening. When the tailgate 3 is closed, since frame 2 is located between the vehicle body 1 and the tailgate 3, frame 2 abuts against the first sealing strip 5, and the first sealing strip 5 cannot seal the tailgate 3. In this embodiment, a second sealing strip 6 is set at frame 2. The second sealing strip 6 includes a first strip 61 and a second strip 62. On the one hand, the first strip 61 is set around the edge of the second opening 21, so that the tailgate 3 abuts against the first strip 61 when closed, thereby achieving a good seal at the tailgate 3. On the other hand, the second strip 62 is set opposite to the corner 4 in the x-direction. Therefore, when the tailgate 3 is closed, the first sealing strip 5 is pressed against the second strip 62, and the second strip 62 is pressed against the corner 4. The second strip 62 is sandwiched between the first sealing strip 5 and the corner 4, thereby effectively sealing the water leakage channel between the sealing strip, the frame 2 and the corner 4, ensuring the sealing performance of the tailgate 3 and preventing water from flowing into the vehicle from outside. In addition, in practical applications, the specifications and forms of the water leakage channel are different in different vehicles due to the different structural forms of the tailgate 3. The second sealing strip 6 is made of elastic material, so when the second strip 62 is sandwiched between the corner 4 and the first sealing strip 5, the second strip 62 can be elastically deformed under pressure, thus it can be applied to tailgates with various different structural forms.

[0058] In this embodiment, since the frame 2 is located between the vehicle body 1 and the tailgate 3, and the frame 2 abuts against the first sealing strip 5, the first sealing strip 5 cannot seal the tailgate 3. By setting a second sealing strip 6 at the frame 2, the second sealing strip 6 includes a first strip 61 and a second strip 62. The first strip 61 is set around the edge of the second opening 21. When the tailgate 3 is closed, the tailgate 3 abuts against the first strip 61 to achieve a good seal at the tailgate 3. When the tailgate 3 is closed, the first sealing strip 5 is pressed against the second strip 62, and the second strip 62 is pressed against the corner 4. The second strip 62 is sandwiched between the first sealing strip 5 and the corner 4, thereby effectively blocking the water leakage channel between the sealing strip, the frame 2 and the corner 4, ensuring the sealing performance of the tailgate 3. When the second strip 62 is sandwiched between the corner 4 and the first sealing strip 5, the second strip 62 can be elastically deformed under pressure, thus it can be applied to tailgates with various different structural forms, with strong compatibility.

[0059] In this embodiment, as Figure 3 and Figure 10 As shown, the tailgate 3 has a portion of its panel protruding towards the vehicle body 1, forming a protrusion 31; the corner 4 has a recessed first recess 41 on the side near the tailgate 3, which engages with at least a portion of the protrusion 31 so that the corner 4 and at least a portion of the protrusion 31 are positioned opposite each other; the second strip 62 includes a first clamping part 621 and a first bubble tube 622 connected together, the first clamping part 621 being connected to the frame 2; the tube of the first bubble tube 622 has a recessed second recess 623 on the side near the tailgate 3, which abuts against the side of the corner 4 opposite to the first recess 41.

[0060] Specifically, the corner joint 4 is located on one side of the back door 3 along the z-direction. The first recess 41 and a portion of the plate of the protrusion 31 are in a concave-convex fit, so that the corner joint 4 covers the portion of the plate of the protrusion 31. The second strip 62 includes a first clamping part 621 and a first bubble tube 622. The cross-sectional shape of the first clamping part 621 can be, but is not limited to, U-shaped, to be snapped onto the edge of the frame 2. At least a portion of the tube of the first bubble tube 622 is located on the side of the first clamping part 621 away from the frame 2 to ensure good fit with the corner joint 4 and the first sealing strip 5. A second recess 623 is formed in the tube of the first bubble tube 622 near the back door 3. The second recess 623 and the corner joint 4 are opposite to the first recess. One side surface of 41 is abutted, and the cooperation between the second recess 623 and the corner 4 improves the sealing performance between the corner 4, the first sealing strip 5 and the second strip 62. In addition, in practical applications, the structure and specifications of the corner 4 are different for different structures and heights of protrusions in different vehicles. Therefore, when the second strip 62 is sandwiched between the corner 4 and the first sealing strip 5, the second strip 62 can be compressed and undergo elastic deformation to ensure a good seal between the first sealing strip 5, the corner 4 and the second strip 62. Thus, it can be applied to various tailgates 3 with different structures and heights, and is compatible with various height differences of protrusions to ensure good sealing performance.

[0061] In this embodiment, the second recess 623 abuts against the side surface of the corner 4 opposite to the first recess 41. With the cooperation of the second recess 623 and the corner 4, the sealing performance between the corner 4, the first sealing strip 5 and the second strip 62 is improved. For protrusions of different heights, the second strip 62 can be compressed and undergo elastic deformation to ensure a good seal between the first sealing strip 5, the corner 4 and the second strip 62. This allows for compatibility with various height differences of the protrusions and ensures good sealing performance.

[0062] In this embodiment, as Figure 9 and Figure 10 As shown, the first bubble tube 622 includes a base bubble tube 6221 and a sub-bubble tube 6222. The base bubble tube 6221 is connected to the first clamping part 621, and the sub-bubble tube 6222 is connected to the side of the base bubble tube 6221 away from the clamping part. At the connection position between the sub-bubble tube 6222 and the base bubble tube 6221, the tube body of the sub-bubble tube 6222 and / or the base bubble tube 6221 is recessed to form a second recess 623 between the sub-bubble tube 6222 and the base bubble tube 6221.

[0063] Specifically, both the base bubble tube 6221 and the sub-bubble tube 6222 can be tubes, and they are arranged side by side. The tube body of the base bubble tube 6221 can be connected to the bottom and side of the U-shaped body of the first clamping part 621, and at least a portion of the tube body of the base bubble tube 6221 is located on the side of the first clamping part 621 away from the frame 2. The sub-bubble tube 6222 is connected to the side of the base bubble tube 6221 away from the first clamping part 621, and is located near the first bubble tube 622. On one side of the contact angle 4, at the connection position between the sub-bubble tube 6222 and the base bubble tube 6221, one or both of the base bubble tube 6221 and the sub-bubble tube 6222 are recessed to form a second recess 623 between the base bubble tube 6221 and the sub-bubble tube 6222. The second recess 623 abuts against the surface of the contact angle 4 away from the first recess 41. By means of the cooperation between the second recess 623 and the contact angle 4, the sealing performance between the contact angle 4, the first sealing strip 5 and the second strip 62 is improved.

[0064] It is worth noting that the cross-sectional shape of the second recess 623 can be, but is not limited to, V-shape; the material of the base bubble tube 6221 and the sub-bubble tube 6222 can be, but is not limited to, EPDM sponge rubber. EPDM sponge rubber is a rubber product with a porous sponge structure made by foaming process using ethylene propylene diene monomer (EPDM) rubber as the main raw material; the material of the first snap-fit ​​part can be, but is not limited to, EPDM solid rubber. EPDM solid rubber is a rubber product with bubble-free, uniform and dense texture formed by vulcanization molding using ethylene propylene diene monomer (EPDM) rubber as the main raw material.

[0065] In this embodiment, on the side of the first bubble tube 622 near the corner 4, and at the connection position between the sub-bubble tube 6222 and the base bubble tube 6221, one or both of the base bubble tube 6221 and the sub-bubble tube 6222 are recessed to form a second recess 623 between the base bubble tube 6221 and the sub-bubble tube 6222. The second recess 623 abuts against the surface of the corner 4 away from the first recess 41. By means of the cooperation between the second recess 623 and the corner 4, the sealing performance between the corner 4, the first sealing strip 5 and the second strip 62 is improved.

[0066] In this embodiment, as Figure 2 and Figure 5As shown, the vehicle body 1 has a third opening 12 on the second side adjacent to the first side, and the third opening 12 is connected to the first opening 11; the first sealing strip 5 includes a first segment 51 and a second segment 52 that are continuously arranged. The first segment 51 is connected to the edge of the vehicle body 1 located at the first opening 11, and the second segment 52 is connected to the edge of the third opening 12 located at the third opening 12; the first segment 51 includes a first sub-segment 511 and a second sub-segment 512 connected at a predetermined angle; the frame 2 is adapted to abut against the first sub-segment 511, and the second strip 62 is adapted to be sandwiched between the corner 4 and the second sub-segment 512.

[0067] Specifically, the first opening 11 is located at the rear of the vehicle body 1, and the third opening 12 is located at the top of the vehicle body 1, with the third opening 12 communicating with the first opening 11. The second sealing strip 6 is an annular strip, which includes a first segment 51 located at the edge of the first opening 11 and a second segment 52 located at the edge of the third opening 12. The first segment 51 also includes a first sub-segment 511 and a second sub-segment 512 continuously arranged. The first sub-segment 511 is positioned opposite to the frame 2 in the x-direction and abuts against the frame 2 when the tailgate 3 is closed. One end of the second sub-segment 512 is connected to the first sub-segment 511 at a predetermined angle, and the strip of the second sub-segment 512 is inclined relative to the z-direction towards the center of the first opening 11, so that the second sub-segment 512 corresponds to the position of the connecting angle 4 and the second strip 62 in the x-direction, thereby achieving a good sealing fit.

[0068] In this embodiment, the second sealing strip 6 is an annular strip. The annular strip includes a first segment 51 disposed at the edge of the first opening 11 and a second segment 52 disposed at the edge of the third opening 12. The first segment 51 also includes a first sub-segment 511 and a second sub-segment 512 disposed continuously. One end of the second sub-segment 512 is connected to the first sub-segment 511 at a predetermined angle. The strip of the second sub-segment 512 is inclined relative to the z-direction toward the center of the first opening 11, so that the second sub-segment 512 corresponds to the position of the connecting angle 4 and the second strip 62 in the x-direction, thereby achieving a good sealing fit.

[0069] In this embodiment, as Figure 11 As shown, the first strip 61 includes a second snap-fit ​​part 611 and a second bubble tube 612 connected together. The second snap-fit ​​part 611 is connected to the frame 2, and the second bubble tube 612 is adapted to abut against the back door 3.

[0070] Specifically, the shape of the second snap-fit ​​part 611 can be, but is not limited to, U-shaped, to snap onto the frame 2; the second bubble tube 612 is connected to the side of the second snap-fit ​​part 611 near the back door 3 to ensure that the second bubble tube 612 abuts against the back door 3 to achieve a good seal; the second snap-fit ​​part 611 has a skeleton, the outside of which is covered with EPDM solid adhesive, and the material of the skeleton can be steel.

[0071] In this embodiment, by setting a second snap-fit ​​part 611 and a second bubble tube 612, the second snap-fit ​​part 611 is snapped into the frame 2, and the second bubble tube 612 is connected to the side of the second snap-fit ​​part 611 near the back door 3, so as to ensure that the second bubble tube 612 and the back door 3 abut against each other to achieve a good seal.

[0072] In this embodiment, as Figure 9 As shown, the tailgate 3 includes an inner panel 32 and an outer panel 33, which are connected. A protrusion 31 is formed on the inner panel 32, and a cavity 34 is formed between the protrusion 31 and the outer panel 33. A lifting mechanism 7 is provided in the cavity 34. The vehicle tailgate structure also includes a window 8, which passes through the tailgate 3 and is connected to the lifting mechanism 7. The lifting mechanism 7 is adapted to raise and lower the window 8.

[0073] Specifically, the inner panel 32 and the outer panel 33 are correspondingly arranged along the x-direction, and the edge of the inner panel 32 is connected to the edge of the outer panel 33; the inner panel 32 is located on the side of the outer panel 33 close to the vehicle body 1, the protrusion 31 is formed in the inner panel 32, and the first strip 61 is abutted against the side of the protrusion 31 away from the outer panel 33 to achieve a good seal at the tailgate 3; the lifting mechanism 7 is an existing component and will not be described in detail here; the lifting structure is set in the cavity 34 of the tailgate 3 and is connected to the window 8; the window 8 can be raised to extend out of the tailgate 3 or lowered to enter the cavity 34 of the tailgate 3 under the action of the lifting mechanism 7.

[0074] In this embodiment, by setting an inner panel 32 and an outer panel 33, with the inner panel 32 located on the side of the outer panel 33 closer to the vehicle body 1, and a protrusion 31 formed on the inner panel 32, the first strip 61 abuts against the side of the protrusion 31 away from the outer panel 33, so as to achieve a good seal at the tailgate 3.

[0075] In this embodiment, as Figure 5 As shown, the inner panel 32 has an inner strip 36 on the side near the window 8, and the inner strip 36 extends along the y direction; at least two corners 4 are respectively connected to the opposite sides of the inner strip 36 along the extension direction.

[0076] Specifically, the inner clip 36 is snapped onto one edge of the back panel along the z-direction, and the inner clip 36 is located on the side of the window 8 close to the vehicle body 1; the inner clip 36 extends along the y-direction, and the opposite sides of the inner clip 36 along the y-direction are respectively connected to the corner 4, and the corner 4 is arranged opposite to the part of the plate near the inner clip 36; the outer panel 33 is snapped onto one edge along the z-direction with an outer clip 35, and the outer clip 35 is arranged opposite to the inner clip 36, and the outer clip 35 is located on the side of the window 8 away from the vehicle body 1.

[0077] In this embodiment, as Figure 5As shown, the first segment 51 also has a third sub-segment 513, which is connected at a predetermined angle to the side of the second sub-segment 512 away from the first sub-segment 511; the surface of the window 8 near the vehicle body 1 is adapted to abut against the third sub-segment 513.

[0078] Specifically, one end of the third segment 513 is connected to the second segment 512 at a predetermined angle, and the other end is connected to the second segment 52; when the window 8 is raised, the third segment 513 abuts against the side surface of the window 8 near the vehicle body 1 to achieve a good seal at the window 8.

[0079] In this embodiment, as Figure 4 As shown, the vehicle tailgate structure also includes a top plate 9, which covers the third opening 12 and is adapted to abut against the second section 52 to achieve a good seal at the top plate 9.

[0080] In this embodiment, as Figure 5 and Figure 6 As shown, a third sealing strip 91 is provided on the side of the top plate 9 near the first opening 11, and the edge of the window 8 away from the tailgate 3 along the z direction is adapted to abut against the third sealing strip 91 to achieve a good seal at the window 8.

[0081] In this embodiment, as Figure 5 and Figure 6 As shown, the vehicle body 1 is provided with a fourth sealing strip 13 near the third sub-section 513. The two fourth sealing strips 13 are arranged opposite each other, and the opposite two sides of the window 8 along the y direction are adapted to abut against the fourth sealing strips 13 to achieve a good seal at the window 8.

[0082] In this embodiment, the vehicle tailgate structure is used as follows: after the tailgate 3 is closed, the window 8 is raised. The frame 2 abuts against the first segment 511 of the first sealing strip 5, and the side surface of the window 8 near the vehicle body 1 abuts against the third segment 513 of the first sealing strip 5. The opposite edges of the window 8 along the y-direction abut against the fourth sealing strip 13. The window 8 gradually rises until its upper edge along the z-direction abuts against the third sealing strip 91. The frame 2, tailgate 3, and window 8 cover the first opening 11, thus sealing the tailgate 3 structure. The first strip 61 of the second sealing strip 6 abuts against the tailgate 3, the second segment 512 of the first sealing strip abuts against the second strip 62 of the second sealing strip 6, and the second strip 62 abuts against the corner 4, achieving a good all-round seal for the vehicle tailgate structure.

[0083] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A vehicle tailgate structure, characterized in that, include: The vehicle body (1) has a first opening (11) on the first side. The frame (2) is connected to the vehicle body (1). The frame and the vehicle body are rotatably connected on one side of the first opening along the z direction, and a second opening (21) is provided through it. The second opening (21) is at least partially connected to the first opening (11). A back door (3) is connected to the frame (2), one end of which is rotatably connected to the frame along the y direction and is adapted to cover the second opening (21). Corner (4) is provided on the back door (3); The first sealing strip (5) is connected to the vehicle body (1); The second sealing strip (6) is connected to the edge of the frame (2) surrounding the second opening (21). The second sealing strip (6) includes a first strip (61) and a second strip (62) connected together. The first strip is arranged around the edge of the second opening, so that the back door abuts against the first strip when closed. The second strip is arranged opposite to the corner in the x direction. Thus, when the back door is closed, the first sealing strip presses against the second strip, and the second strip presses against the corner. The second strip is sandwiched between the first sealing strip and the corner.

2. The vehicle tailgate structure according to claim 1, characterized in that: The tailgate (3) has a portion of its panel protruding toward the vehicle body (1) to form a protrusion (31). The corner (4) is recessed on the side near the back door (3) to form a first recess (41), the first recess (41) engaging with at least a portion of the protrusion (31) so that the corner (4) and at least a portion of the protrusion (31) are positioned opposite each other; The second body (62) includes a first clamping part (621) and a first bubble tube (622) connected together, and the first clamping part (621) is connected to the frame (2); The first bubble tube (622) is recessed on the side of the tube near the back door (3) to form a second recess (623), and the second recess (623) abuts against the side of the corner (4) away from the first recess (41).

3. The vehicle tailgate structure according to claim 2, characterized in that: The first bubble tube (622) includes a base bubble tube (6221) and a sub-bubble tube (6222). The base bubble tube (6221) is connected to the first clamping part (621), and the sub-bubble tube (6222) is connected to the side of the base bubble tube (6221) away from the clamping part. At the connection position between the sub-bubble tube (6222) and the base bubble tube (6221), the tube body of the sub-bubble tube (6222) and / or the base bubble tube (6221) is recessed to form a second recess (623) between the sub-bubble tube (6222) and the base bubble tube (6221).

4. The vehicle tailgate structure according to claim 2, characterized in that: The vehicle body (1) has a third opening (12) on the second side adjacent to the first side, and the third opening (12) is connected to the first opening (11); The first sealing strip (5) includes a first segment (51) and a second segment (52) that are continuously arranged. The first segment (51) is connected to the edge of the vehicle body (1) located at the first opening (11), and the second segment (52) is connected to the edge of the third opening (12) located at the third opening (12). The first segment (51) includes a first sub-segment (511) and a second sub-segment (512) connected at a predetermined angle; the frame (2) is adapted to abut against the first sub-segment (511), and the second strip (62) is adapted to be sandwiched between the corner (4) and the second sub-segment (512).

5. The vehicle tailgate structure according to claim 2, characterized in that: The first strip (61) includes a second snap-fit ​​part (611) and a second bubble tube (612) connected together. The second snap-fit ​​part (611) is connected to the frame (2), and the second bubble tube (612) is adapted to abut against the back door (3).

6. The vehicle tailgate structure according to claim 4, characterized in that: The back door (3) includes an inner panel (32) and an outer panel (33), the inner panel (32) and the outer panel (33) are connected, the protrusion (31) is formed on the inner panel (32), and a cavity (34) is formed between the protrusion (31) and the outer panel (33). The cavity (34) is equipped with a lifting mechanism (7); The vehicle tailgate structure also includes a window (8), which passes through the tailgate (3) and is connected to the lifting mechanism (7), which is adapted to raise and lower the window (8).

7. The vehicle tailgate structure according to claim 6, characterized in that: The inner panel (32) has an inner strip (36) on the side near the window (8); At least two of the said corners (4) are respectively connected to opposite sides of the inner clamping strip (36) along the extension direction.

8. The vehicle tailgate structure according to claim 6, characterized in that: The first segment (51) also has a third sub-segment (513), which is connected at a predetermined angle to the side of the second sub-segment (512) away from the first sub-segment (511); The side surface of the window (8) near the vehicle body (1) is adapted to abut against the third sub-segment (513).

9. The vehicle tailgate structure according to claim 8, characterized in that: The vehicle tailgate structure also includes a top plate (9) that covers the third opening (12) and is adapted to abut against the second section (52).

10. The vehicle tailgate structure according to claim 9, characterized in that: The top plate (9) is provided with a third sealing strip (91) on the side near the first opening (11), and the side of the window (8) away from the tailgate (3) is adapted to abut against the third sealing strip (91); and / or, The vehicle body (1) is provided with a fourth sealing strip (13) near the third sub-segment (513), and the edge of the window (8) is adapted to abut against the fourth sealing strip (13).

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