Outer plate split type tail door and mounting method thereof

Abstract

The invention relates to an outer plate split type tail door and an installation method thereof.The outer plate split type tail door comprises a tail door outer plate upper plate (1), a tail door outer plate lower plate (2) and a tail door inner plate (3), the tail door outer plate upper plate (1), the tail door outer plate lower plate (2) and the tail door inner plate (3) are connected in a bonding mode, and a waterproof cavity is formed among the three tail door plates; a C-shaped clamping groove (21) with an opening facing the outside of the tail door is horizontally formed in the upper end of the tail door outer plate lower plate (2), an assembly space is formed between the tail door outer plate upper plate (1) and the C-shaped clamping groove (21) of the tail door outer plate lower plate (2), a plurality of clamping positions are arranged in the assembly space at intervals, and pre-fixing clamping structures are arranged at the clamping positions. Compared with the prior art, fastening and sealing of the outer plate split type tail door outer plate and the tail door inner plate are achieved.

Description

Technical Field

[0001] This invention relates to the field of automobile tailgate technology, and in particular to a split-panel tailgate and its installation method. Background Technology

[0002] With the continuous advancement of automotive technology, such as electrification and intelligentization, the design of car rear ends is also constantly evolving to meet consumers' demands for aesthetics and personalization. As the styling of car rear ends becomes increasingly complex, and with more and more demand for two-tone designs, the tailgate outer panel is often split into upper and lower parts, known as a split tailgate.

[0003] To achieve the connection and sealing of the upper and lower parts of the tailgate outer panel, there are generally two existing installation methods. The first method involves extending one of the disassembled outer panels to overlap with the other, then bonding it to the tailgate inner panel on a mold to achieve connection and sealing. The other outer panel is then installed as an additional decorative piece at the overlapping area. This method is costly. The second method involves bonding the two disassembled outer panels to a mold first to achieve connection and sealing. After the adhesive cures, it is then bonded to the tailgate inner panel on the mold to achieve overall connection and sealing. While this method is cheaper in terms of material costs than the first method, the additional bonding process incurs extra costs for the bonding process and mold, as well as corresponding site usage and logistics costs, resulting in a still higher overall cost. Furthermore, this method does not allow for structural positioning between the two outer panels; indirect positioning is achieved only through the bonding mold, requiring a larger gap and making it impossible to achieve a precise aesthetic match.

[0004] The aforementioned split tailgate installations all suffer from drawbacks such as complex operation, high cost, and inability to achieve a tight seal between the outer and inner tailgate panels. Therefore, there is an urgent need to develop a new type of split tailgate with an outer panel to achieve a tight seal between the outer and inner tailgate panels. Summary of the Invention

[0005] The purpose of this invention is to provide a tailgate with a split outer panel and its installation method, so as to achieve fastening and sealing of the outer and inner panels of the tailgate.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A split tailgate includes an outer tailgate upper panel, an outer tailgate lower panel, and an inner tailgate panel. The outer tailgate upper panel, the outer tailgate lower panel, and the inner tailgate panel are all connected to each other by adhesive bonding, and a waterproof cavity is formed between the three tailgate panels.

[0008] The upper end of the lower plate of the tailgate outer panel is provided with a C-shaped slot with an opening facing outwards from the tailgate. An assembly space is formed between the upper plate of the tailgate outer panel and the C-shaped slot of the lower plate of the tailgate outer panel. Multiple snap-fit ​​positions are provided at intervals in the assembly space, and each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure.

[0009] Furthermore, a first adhesive layer is provided between the upper plate of the outer tailgate and the inner tailgate, a second adhesive layer is provided between the upper plate of the outer tailgate and the lower plate of the outer tailgate, and a third adhesive layer is provided between the lower plate of the outer tailgate and the inner tailgate.

[0010] Furthermore, the first adhesive layer, the second adhesive layer, and the third adhesive layer are all continuous adhesive layers with overlapping boundaries of each adhesive path.

[0011] Furthermore, the three tailgate panels are bonded together to form a waterproof cavity.

[0012] Furthermore, the cross-sectional dimension of the C-shaped slot at the non-engaged position is smaller than the cross-sectional dimension of the slot at the engaged position.

[0013] Furthermore, the outer panel of the tailgate is provided with a flange that can extend into the assembly space.

[0014] Furthermore, the C-shaped slot at the non-clamping position matches the flange gap, with a gap of no more than 0.2mm, thereby ensuring the matching of the gap and surface difference between the upper and lower plates of the tailgate outer panel.

[0015] Furthermore, the C-shaped slot at the snap-fit ​​position is provided with a protruding structure, and the flange is provided with a snap-fit ​​hole that can snap with the protruding structure. The protruding structure and the snap-fit ​​hole constitute the pre-fixed snap-fit ​​structure, which is used for pre-fixation before the glue cures.

[0016] Furthermore, the pre-fixed snap-fit ​​structure is arranged at equal intervals.

[0017] Furthermore, the outer panel of the tailgate is provided with a shielding rib, which penetrates the joint connection area between the upper and lower panels of the outer panel of the tailgate and can effectively prevent the pre-fixed snap-fit ​​structure from being directly seen from the outside, thus affecting the aesthetics.

[0018] Furthermore, the obstruction rib is fitted with the lower plate of the tailgate outer panel with a clearance of no more than 0.5mm.

[0019] Furthermore, a support structure is provided on the inner panel of the tailgate, which is bonded to the C-shaped slot to avoid difficulties in the installation process caused by the C-shaped slot being flipped and deformed.

[0020] The present invention also provides a method for installing a split-type tailgate, comprising the following steps:

[0021] S1: Install the outer panel of the tailgate onto the outer panel mold, and apply the second adhesive layer 5 at the corresponding position on the outer panel of the tailgate.

[0022] S2: Install the lower panel of the tailgate outer panel onto the outer panel mold, press the second adhesive layer and the pre-fixed snap-fit ​​structure together, and then apply the first adhesive layer and the third adhesive layer.

[0023] S3: Place the tailgate inner panel on the inner panel mold, then assemble the outer panel mold with the inner panel mold to complete the installation.

[0024] The present invention also provides another method for installing a split-type tailgate, comprising the following steps:

[0025] S1: Simultaneously install the upper and lower tailgate outer panel onto the outer panel mold, wherein the first mold module containing the upper tailgate outer panel and the second mold module containing the lower tailgate outer panel are staggered on the outer panel mold.

[0026] S2: Apply the first and second adhesive layers to the upper part of the tailgate outer panel, and apply the third adhesive layer to the lower part of the tailgate outer panel to ensure that the overlap between the adhesive layers is continuous.

[0027] S3: Place the tailgate inner panel on the inner panel mold, and the outer panel mold, along with the first and second mold modules, joins the inner panel mold.

[0028] S4: The motion mechanism drives the first tire module to continue pressing and closing, completing the installation.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) The split tailgate of the present invention is provided with adhesive path and pre-fixed snap-fit ​​structure, so that the two tailgate outer panels can be bonded to the tailgate inner panel at the same time, and the two tailgate outer panels can be effectively bonded to each other at the same time, thereby realizing the fastening and sealing of the split tailgate outer panel and the tailgate inner panel.

[0031] (2) The present invention takes into account that the adhesive path between the two tailgate outer panels is blocked by the inner panel structure, so that the adhesive layer cures quickly. Therefore, a pre-fixed snap-fit ​​structure is arranged at intervals above the adhesive path between the two tailgate outer panels to pre-fix the two tailgate outer panels before the adhesive layer cures.

[0032] (3) The boundaries of each adhesive path of the present invention overlap with each other, which can ensure that no water enters the waterproof cavity inside the adhesive path, thus achieving an effective sealing function.

[0033] (4) In view of the overall aesthetics of the split tailgate, the present invention provides a through shielding rib in the joint connection area between the upper and lower sections of the outer tailgate, which can effectively prevent the pre-fixed snap-fit ​​structure from being directly seen from the outside, thus affecting the aesthetics.

[0034] (5) In the split tailgate of the present invention, there is no need to set a large gap between the two tailgate outer panels, which can achieve the requirements of exquisite appearance matching.

[0035] (6) The outer panel split tailgate of the present invention can be installed by two installation methods and by selecting different outer panel membranes. The installation method is flexible and easy to operate, and has good practical application value. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of each tailgate panel and adhesive layer of the present invention.

[0037] Figure 2 This is a front view of the split-type tailgate of the present invention.

[0038] Figure 3 for Figure 2 A schematic diagram of the cross-section of AA.

[0039] Figure 4 for Figure 2 A schematic diagram of the cross-section of BB.

[0040] Figure 5 for Figure 2 A cross-sectional schematic diagram of CC.

[0041] Figure 6 This is a schematic diagram of the first installation method in Embodiment 6 of the present invention.

[0042] Figure 7 This is a schematic diagram of the second installation method in Embodiment 6 of the present invention.

[0043] Explanation of markings in the diagram:

[0044] 1-Tailgate outer panel upper plate, 11-Flanged edge, 12-Snap-fit ​​hole, 13-Shielding rib;

[0045] 2- Tailgate outer panel lower plate, 21- C-shaped slot, 22- Protruding structure;

[0046] 3-Tailgate inner panel, 31-Supporting structure;

[0047] 4-First adhesive layer;

[0048] 5-Second adhesive layer;

[0049] 6-Third adhesive layer;

[0050] 7-Waterproof cavity;

[0051] 8-Outer plate mold, 81-First mold module, 82-Second mold module, 83-Motion mechanism;

[0052] 9-Inner plate mold. Detailed Implementation

[0053] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0054] In this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] Example 1:

[0057] A split tailgate includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3. The outer tailgate upper panel 1, the outer tailgate lower panel 2, and the inner tailgate panel 3 are all connected to each other by adhesive bonding, and the three tailgate panels are connected to each other to form a waterproof cavity.

[0058] The upper end of the lower plate 2 of the tailgate outer panel is provided with a C-shaped slot 21 with an opening facing outward of the tailgate. An assembly space is formed between the upper plate 1 of the tailgate outer panel and the C-shaped slot 21 of the lower plate 2 of the tailgate outer panel. Multiple snap-fit ​​positions are provided at intervals in the assembly space. Each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure to pre-fix before the bonding and curing of the upper plate 1 of the tailgate outer panel and the lower plate 2 of the tailgate outer panel.

[0059] The installation method of the split tailgate in this embodiment can be selected from either of the following two methods. The first method specifically includes the following steps: installing the upper plate 1 of the tailgate outer panel onto the outer panel mold 8, and applying the second adhesive layer 5 to the corresponding position of the upper plate 1 of the tailgate outer panel; installing the lower plate 2 of the tailgate outer panel onto the outer panel mold 7, pressing the second adhesive layer 5 and the pre-fixed snap-fit ​​structure together, and then applying the first adhesive layer 4 and the third adhesive layer 6; placing the inner panel 3 on the inner panel mold 9, and then closing the outer panel mold 8 and the inner panel mold 9 to complete the installation.

[0060] The second method specifically includes the following steps: The upper plate 1 and lower plate 2 of the outer tailgate are simultaneously installed onto the outer plate mold 8, wherein the first mold module 81 containing the upper plate 1 and the second mold module 82 containing the lower plate 2 are staggered on the outer plate mold 8; a first adhesive layer 4 and a second adhesive layer 5 are applied to the upper plate 1 of the outer tailgate, while a third adhesive layer 6 is applied to the lower plate 2 of the outer tailgate, ensuring continuous overlap between the adhesive layers; the inner tailgate plate 3 is placed on the inner plate mold 9, and the outer plate mold 8, carrying the first mold module 81 and the second mold module 82, is closed with the inner plate mold 9; the motion mechanism 83 drives the first mold module 81 to continue pressing, completing the installation.

[0061] Example 2:

[0062] A split-type tailgate includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3. For example... Figure 1-3 As shown, the upper part 1 of the outer tailgate panel, the lower part 2 of the outer tailgate panel, and the inner tailgate panel 3 are all connected to each other by adhesive bonding, and the three tailgate panels are connected to each other to form a waterproof cavity 7.

[0063] Specifically, in this embodiment, a first adhesive layer 4 is provided between the upper plate 1 of the outer tailgate and the inner tailgate 3, a second adhesive layer 5 is provided between the upper plate 1 of the outer tailgate and the lower plate 2 of the outer tailgate, and a third adhesive layer 6 is provided between the lower plate 2 of the outer tailgate and the inner tailgate 3. The first adhesive layer 4, the second adhesive layer 5, and the third adhesive layer 6 are all continuous adhesive layers with overlapping boundaries, ensuring that no water enters the waterproof cavity 7 inside the adhesive path, thus achieving a sealing function.

[0064] Example 3:

[0065] A split-type tailgate includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3. The outer tailgate upper panel 1, the outer tailgate lower panel 2, and the inner tailgate panel 3 are all connected to each other by adhesive bonding, and the three tailgate panels are bonded together to form a waterproof cavity 7. The upper end of the lower tailgate lower panel 2 is provided with a C-shaped slot 21 opening outwards from the tailgate. An assembly space is formed between the outer tailgate upper panel 1 and the C-shaped slot 21 of the lower tailgate lower panel 2. Multiple snap-fit ​​positions are spaced apart in the assembly space, and each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure.

[0066] In this embodiment, the cross-sectional dimension of the C-shaped slot 21 at the non-engaging position is smaller than the cross-sectional dimension of the non-engaging position. For example... Figure 4 As shown, the upper plate 1 of the tailgate outer panel has a flange 11 that can extend into the assembly space. A C-shaped groove 21 at a non-clamping position fits the flange 11 with a clearance of no more than 0.2 mm. A protruding structure 22 is provided on the C-shaped groove 21 at the clamping position, and a clamping hole 12 is provided on the flange 11 that can engage with the protruding structure 22. The protruding structure 22 of the lower plate 2 of the tailgate outer panel and the clamping hole 12 of the upper plate 1 of the tailgate outer panel together form a pre-fixed clamping structure, which pre-fixes the upper plate 1 and the lower plate 2 of the tailgate outer panel before bonding and curing, thereby accelerating the subsequent curing of the adhesive layer.

[0067] Example 4:

[0068] A split-type tailgate includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3. The outer tailgate upper panel 1, the outer tailgate lower panel 2, and the inner tailgate panel 3 are all connected to each other by adhesive bonding, and the three tailgate panels are bonded together to form a waterproof cavity 7. The upper end of the lower tailgate lower panel 2 is provided with a C-shaped slot 21 opening outwards from the tailgate. An assembly space is formed between the outer tailgate upper panel 1 and the C-shaped slot 21 of the lower tailgate lower panel 2. Multiple snap-fit ​​positions are spaced apart in the assembly space, and each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure.

[0069] To prevent this snap-fit ​​structure from being directly visible on the outside of the tailgate, thus affecting the overall aesthetics, such as Figure 5 As shown, in this embodiment, a baffle rib 13 is also provided on the upper plate 1 of the outer tailgate. The baffle rib 13 passes through the joint connection area between the upper plate 1 and the lower plate 2 of the outer tailgate. The baffle rib 13 and the lower plate 2 of the outer tailgate are fitted with a gap, and the gap is no more than 0.5mm.

[0070] Example 5:

[0071] A split-type tailgate includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3. The outer tailgate upper panel 1, the outer tailgate lower panel 2, and the inner tailgate panel 3 are all connected to each other by adhesive bonding, and a waterproof cavity 7 is formed between the three tailgate panels. The upper end of the lower tailgate panel 2 is provided with a C-shaped slot 21 that opens outwards from the tailgate. An assembly space is formed between the outer tailgate upper panel 1 and the C-shaped slot 21 of the lower tailgate panel 2. Multiple snap-fit ​​positions are provided at intervals in the assembly space, and each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure.

[0072] To avoid difficulties in the installation process caused by the C-shaped slot 21 being flipped and deformed, a support structure 31 is provided on the inner panel 3 of the tailgate in this embodiment, and the support structure 31 is bonded to the C-shaped slot 21.

[0073] Example 6:

[0074] This embodiment provides a split-type tailgate with separate outer panels and its specific installation method. The split-type tailgate includes a structure that allows the two separate outer tailgate panels to be bonded to the inner tailgate panel in one go. Specifically, this is achieved through a connection structure with pre-fixed snap-fit ​​structures and adhesive channels, allowing both outer tailgate panels to be bonded to the inner tailgate panel simultaneously, and also achieving bonding between the two outer tailgate panels. Because the adhesive channels between the two outer tailgate panels are blocked by the inner tailgate panel, the adhesive there cannot be cured quickly by the heating and curing device on the mold like the adhesive in other parts. To avoid affecting the production cycle, pre-fixed snap-fit ​​structures are arranged at intervals above the adhesive channels between the two outer panels to pre-fix the two outer tailgate panels before the adhesive cures.

[0075] The split tailgate of this embodiment includes an outer tailgate upper panel 1, an outer tailgate lower panel 2, and an inner tailgate panel 3, all three panels being connected by adhesive. The adhesive channels are continuous, with each channel's boundary overlapping to ensure that no water enters the inner side of the channels, i.e., the waterproof cavity 7 formed by the outer tailgate upper panel 1, the outer tailgate lower panel 2, and the inner tailgate panel 3, thus achieving a sealing function.

[0076] The upper end of the lower panel 2 of the tailgate outer panel includes a C-shaped groove 21. This structure can wrap around the flange 11 at the lower end of the upper panel 1 of the tailgate outer panel, thereby ensuring the matching of the gap and surface difference between the upper panel 1 and the lower panel 2 of the tailgate outer panel. To ensure good assembly, the gap between the C-shaped groove 21 and the flange 11 is set to 0-0.2mm. The C-shaped groove 21 is enlarged at the position where it needs to be engaged, and a protruding structure 22 is added. At the corresponding position of the flange 11, there is a engagement hole 12. The protruding structure 22 and the engagement hole 12 together constitute a pre-fixed engagement structure for pre-fixation before the glue cures.

[0077] To prevent the pre-fixed snap-fit ​​structure from being directly visible from the outside and affecting the aesthetics, a shielding rib 13 is provided on the upper plate 1 of the outer tailgate. The shielding rib 13 runs through the entire seam area between the upper plate 1 of the outer tailgate and the lower plate 2 of the outer tailgate, and the gap between the shielding rib 13 and the lower plate 2 of the outer tailgate is set to 0 to 0.5 mm.

[0078] In addition, a support structure 31 is provided on the inner panel 3 to prevent installation difficulties caused by the C-shaped slot 21 being flipped and deformed. Since the above structures are all made below the adhesive channel formed by the adhesive (second adhesive layer 5), that is, outside the cavity 5, they will not affect the overall sealing function.

[0079] Figure 6 This embodiment demonstrates a first installation method for the split-type tailgate with outer panels. First, the upper outer panel 1 of the tailgate is installed onto the outer panel mold 8. Adhesive (second adhesive layer 5) is applied to the corresponding positions on the upper outer panel 1. Then, the lower outer panel 2 is installed onto the outer panel mold 8, thereby achieving the pressing of the second adhesive layer 5 and the engagement of the protruding structure 22 with the snap-fit ​​hole 12. Next, the first adhesive layer 4 and the third adhesive layer 6 are applied, ensuring that the overlap between them and with the second adhesive layer 5 is continuous. Simultaneously, the inner tailgate panel 3 is placed on the inner panel mold 9. Then, the outer panel mold 8 and the inner panel mold 9 are closed, connecting the inner and outer panels.

[0080] Figure 7 This embodiment demonstrates a second installation method for the split-type tailgate. First, the outer upper panel 1 and the lower outer panel 2 of the tailgate are simultaneously installed onto the outer panel mold 8. To ensure the second adhesive layer 5 can be applied to the corresponding position on the outer upper panel 1, the first mold module 81 containing the outer upper panel 1 and the second mold module 82 containing the lower outer panel 2 are staggered on the outer panel mold 8. The first mold module 81 is positioned relatively rearward and can be moved forward to its theoretical position via a motion mechanism 83 (a commonly used telescopic cylinder can be used). Next, the first adhesive layer 4 and the second adhesive layer 5 are applied to the outer upper panel 1, ensuring a continuous overlap between them. Simultaneously, the third adhesive layer 6 is applied to the lower outer panel 2, ensuring a continuous overlap between it and the first and second adhesive layers 4 and 5 after pressing. Meanwhile, the inner tailgate panel 3 is placed on the inner panel mold 9, and then the outer panel mold 8, along with the first mold module 81 and the second mold module 82, is molded together with the inner panel mold 9 to connect the lower outer panel 2 of the tailgate to the inner tailgate panel 3. At this time, the upper outer panel 1 of the tailgate is still far away from the inner panel 3 and the lower outer panel 2 of the tailgate. Subsequently, the motion mechanism 83 drives the first mold module 81 to continue pressing, thus connecting the inner and outer panels.

[0081] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A split-type tailgate, comprising an outer tailgate upper panel (1), an outer tailgate lower panel (2), and an inner tailgate panel (3), characterized in that, The upper plate (1) of the outer tailgate, the lower plate (2) of the outer tailgate, and the inner tailgate are all connected to each other by adhesive bonding; The upper end of the lower plate (2) of the tailgate outer panel is provided with a C-shaped slot (21) with an opening facing outward of the tailgate. An assembly space is formed between the upper plate (1) of the tailgate outer panel and the C-shaped slot (21) of the lower plate (2) of the tailgate outer panel. Multiple snap-fit ​​positions are provided at intervals in the assembly space, and each snap-fit ​​position is provided with a pre-fixed snap-fit ​​structure.

2. The split-type tailgate with outer panel as described in claim 1, characterized in that, A first adhesive layer (4) is provided between the upper plate (1) of the outer tailgate and the inner tailgate (3), a second adhesive layer (5) is provided between the upper plate (1) of the outer tailgate and the lower plate (2) of the outer tailgate, and a third adhesive layer (6) is provided between the lower plate (2) of the outer tailgate and the inner tailgate (3). The first adhesive layer (4), the second adhesive layer (5) and the third adhesive layer (6) are all continuous adhesive layers with overlapping boundaries of each adhesive layer.

3. The split-type tailgate with outer panel as described in claim 1, characterized in that, The cross-sectional dimension of the C-shaped slot (21) at the non-clamping position is smaller than that at the clamping position.

4. The split-type tailgate with outer panel as described in claim 1, characterized in that, The outer plate (1) of the tailgate is provided with a flange (11) that can extend into the assembly space.

5. A split-type tailgate with an outer panel according to claim 4, characterized in that, The C-shaped slot (21) at the non-clamping position is clearance-fitted with the flange (11), and the gap is no more than 0.2mm.

6. A split-type tailgate with an outer panel according to claim 4, characterized in that, The C-shaped slot (21) at the snap-fit ​​position is provided with a protruding structure (22), and the flange (11) is provided with a snap-fit ​​hole (12) that can snap with the protruding structure (22). The protruding structure (22) and the snap-fit ​​hole (12) constitute the pre-fixed snap-fit ​​structure.

7. A split-type tailgate with an outer panel according to claim 1, characterized in that, The upper plate (1) of the outer tailgate is provided with a shielding rib (13), which penetrates the joint connection area between the upper plate (1) of the outer tailgate and the lower plate (2) of the outer tailgate. The shielding rib (13) is fitted with the lower plate (2) of the outer panel of the tailgate with a clearance of no more than 0.5mm.

8. A split-type tailgate with an outer panel according to claim 1, characterized in that, The tailgate inner panel (3) is provided with a support structure (31), which is bonded to the C-shaped slot (21).

9. A method for installing a split-type tailgate according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Install the outer panel plate (1) of the tailgate onto the outer panel mold (8), and apply the second adhesive layer (5) to the corresponding position of the outer panel plate (1); S2: Install the lower plate (2) of the tailgate outer panel onto the outer panel mold (8), press the second adhesive layer (5) and the pre-fixed snap-fit ​​structure together, and then apply the first adhesive layer (4) and the third adhesive layer (6). S3: Place the tailgate inner panel (3) on the inner panel mold (9), and then close the outer panel mold (8) with the inner panel mold (9) to complete the installation.

10. A method for installing a split-type tailgate according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Install the upper plate (1) and the lower plate (2) of the outer tailgate simultaneously onto the outer plate mold (8), wherein the first mold module (81) where the upper plate (1) of the outer tailgate is located and the second mold module (82) where the lower plate (2) of the outer tailgate is located are staggered on the outer plate mold (8); S2: Apply a first adhesive layer (4) and a second adhesive layer (5) to the upper plate (1) of the outer panel of the tailgate, and apply a third adhesive layer (6) to the lower plate (2) of the outer panel of the tailgate to ensure that the overlapping positions between the adhesive layers are continuous. S3: Place the tailgate inner panel (3) on the inner panel mold (9), and the outer panel mold (8) with the first mold module (81) and the second mold module (82) is molded together with the inner panel mold (9); S4: The motion mechanism (83) drives the first tire module (81) to continue pressing and complete the installation.

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