Assembly method for gull-wing door, vehicle body structure and vehicle

Abstract

The invention discloses an assembling method for a gull-wing door, a vehicle body structure and a vehicle. The gull-wing door comprises an upper body and a lower body which are rotatably connected, and the upper body is suitable for being rotatably connected with a vehicle body frame through a main hinge; the assembling method comprises the steps that one hinge arm of the main hinge is fixed to one of the upper body and the vehicle body frame through a self-positioning bolt; fixing the other hinge arm of the main hinge on the other one of the upper body and the vehicle body frame; and the lower body is connected to the upper body. According to the assembly method for the gull-wing door, through the automatic positioning function of the self-positioning bolt, it can be guaranteed that the main hinge is accurately installed on the upper body or the vehicle body frame according to the preset installation position, and a tool structure and working procedures for positioning between the main hinge and the upper body or the vehicle body frame are omitted; therefore, the installation precision of the gull-wing door can be guaranteed, and meanwhile the installation difficulty and cost of the gull-wing door are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an assembly method for a gull-wing door, a vehicle body structure and a vehicle. Background Art

[0002] The split gull-wing door consists of an upper body and a lower body. The upper body is connected to the top cover through a main hinge, and the upper body and the lower body are connected through a secondary hinge. Due to the huge difference in structure between the gull-wing door and the traditional swing door, the assembly method of the split gull-wing door and the traditional swing door is quite different. In the process of installing the door to the body, the door is usually positioned by an assembly positioning tool. Since the gull-wing door has many parts, if each individual part is positioned and installed by the corresponding tool, the number of tooling required for the installation of the gull-wing door will be large, which will increase the installation cost of the gull-wing door. Summary of the invention

[0003] A first aspect of the present invention provides an assembly method for a gull-wing door, which has the advantages of high installation accuracy and low installation cost.

[0004] According to an assembly method for a gull-wing door according to an embodiment of the first aspect of the present invention, the gull-wing door includes an upper body and a lower body that are rotatably connected, and the upper body is suitable for being rotatably connected to a vehicle body frame through a main hinge. The assembly method includes: fixing one of the hinge arms of the main hinge to one of the upper body and the vehicle body frame by a self-locating bolt; fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame; and connecting the lower body to the upper body.

[0005] According to the assembly method for gull-wing doors of the first aspect of the present invention, one of the hinge arms of the main hinge is first fixed to the upper body or the body frame by using a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between one of the hinge arms of the main hinge and the upper body or the body frame can be better corrected to ensure that the main hinge can be accurately installed on the upper body or the body frame according to the preset installation position, and the tooling structure and process for positioning between the main hinge and the upper body or the body frame are omitted, thereby reducing the installation difficulty and cost of the gull-wing door while ensuring the installation accuracy of the gull-wing door.

[0006] According to some embodiments of the present invention, before fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame, the method includes: positioning the upper body on the vehicle body frame by using a first assembly tool.

[0007] According to some embodiments of the present invention, the upper body is suitable for being rotatably connected to the lower body via a secondary hinge. Before connecting the lower body to the upper body, the assembly method further includes: positioning the position between the secondary hinge and the upper body by a second assembly tool and fixing one of the hinge arms of the secondary hinge to the upper body.

[0008] According to some embodiments of the present invention, connecting the lower body to the upper body includes: placing the lower body in a door opening of the vehicle body frame, and fixing another hinge arm of the secondary hinge to the lower body by a self-locating bolt.

[0009] According to some embodiments of the present invention, before fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame, the position between the secondary hinge and the upper body is positioned by a second assembly tool and one of the hinge arms of the secondary hinge is fixed to the upper body.

[0010] A second aspect of the present invention provides a vehicle body structure.

[0011] The vehicle body structure according to the second aspect of the embodiment of the present invention includes: a vehicle body frame, which is formed with a door opening and includes a top longitudinal beam located at one side edge of the door opening; a gull-wing door, which is arranged in the door opening and includes an upper body and a lower body, the top longitudinal beam is located inside the upper body, an inner end of the upper body is rotatably connected to the top longitudinal beam through a main hinge, the main hinge is connected to the upper body and the top longitudinal beam respectively through a first bolt and a second bolt, at least one of the first bolt and the second bolt is a self-locating bolt, and an outer end of the upper body is rotatably connected to the upper end of the lower body through a secondary hinge.

[0012] According to the vehicle body structure of the second aspect of the embodiment of the present invention, at least one of the first bolt and the second bolt is a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between the main hinge and the upper body or the vehicle body frame can be better corrected to ensure that the main hinge can be accurately installed on the upper body or the vehicle body frame according to the preset installation position, and the tooling structure and process for positioning between the main hinge and the upper body or the vehicle body frame are omitted, thereby reducing the installation difficulty and cost of the gull-wing door while ensuring the installation accuracy of the gull-wing door.

[0013] According to some embodiments of the present invention, the main hinge includes a first hinge arm and a second hinge arm that are rotatably connected, the first hinge arm being connected to the side of the top longitudinal beam facing the upper body in the left and right directions, and the second hinge arm being connected to the upper surface of the upper body.

[0014] According to some embodiments of the present invention, a first connection hole is formed on the side of the top longitudinal beam facing the upper body in the left-right direction, a first through hole opposite to and connected to the first connection hole is formed on the first hinge arm, and an internal thread screwed to the first bolt is formed on the inner circumferential surface of the first connection hole;

[0015] According to some embodiments of the present invention, a second through hole opposite to and connected to the second connecting hole is formed on the second hinge arm, and an internal thread threadedly connected to the second bolt is formed on the inner circumferential surface of the second connecting hole.

[0016] According to some embodiments of the present invention, the secondary hinge is connected to the lower body via a self-locating bolt.

[0017] According to some embodiments of the present invention, the secondary hinge includes a third hinge arm and a fourth hinge arm that are rotatably connected, the third hinge arm is connected to the lower surface of the upper body, the lower body includes a window frame, and the fourth hinge arm is connected to the inner side surfaces of the window frame that are opposite in the front-to-back direction.

[0018] According to some embodiments of the present invention, the third hinge arm is connected to the upper body by a third bolt, and the fourth hinge arm is connected to the lower body by a fourth bolt; wherein, a third connecting hole is formed on the side surface of the third hinge arm facing the lower side surface of the upper body, a third through hole opposite to and connected to the third connecting hole is formed on the upper body, and an internal thread screwed to the third bolt is formed on the inner circumferential surface of the third connecting hole; a fourth connecting hole is formed on the opposite sides of the window frame in the front-to-back direction, and the fourth hinge arm is formed with a fourth through hole opposite to and connected to the fourth connecting hole, and an internal thread screwed to the fourth bolt is formed in the fourth connecting hole.

[0019] According to some embodiments of the present invention, the self-positioning bolt includes: a head, a positioning portion and a connecting portion, the positioning portion is connected between the head and the connecting portion, the diameters of the head, the positioning portion and the connecting portion decrease successively, and the diameter of the positioning portion decreases in the direction from the head toward the connecting portion.

[0020] According to some embodiments of the present invention, the main hinge and the auxiliary hinge are each provided with a plurality of hinges arranged at intervals along the front-to-back direction.

[0021] According to some embodiments of the present invention, the main hinge includes a first main hinge and a second main hinge symmetrically distributed along the front-to-back direction, and the secondary hinge includes a first secondary hinge and a second secondary hinge symmetrically arranged along the front-to-back direction.

[0022] A third aspect of the present invention provides a vehicle.

[0023] A vehicle according to an embodiment of the third aspect of the present invention includes: the above-mentioned vehicle body structure.

[0024] In the vehicle according to the third aspect of the embodiment of the present invention, at least one of the first bolt and the second bolt is a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between the main hinge and the upper body or the body frame can be better corrected to ensure that the main hinge can be accurately installed on the upper body or the body frame according to the preset installation position, and the tooling structure and process for positioning between the main hinge and the upper body or the body frame are omitted, thereby ensuring the installation accuracy of the gull-wing door while reducing the installation difficulty and cost of the gull-wing door.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a flow chart of an assembly method for a gull-wing door according to an embodiment of the present invention;

[0027] Figure 2 is a flow chart of an assembly method for a gull-wing door according to another embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of the assembly steps of a gull-wing door of a vehicle door structure according to an embodiment of the present invention;

[0029] Figure 4 is a partial schematic diagram of one side of a vehicle body structure according to an embodiment of the present invention;

[0030] Figure 5 is a partial schematic diagram of another side of a vehicle body structure according to an embodiment of the present invention;

[0031] Figure 6 is a schematic diagram of a first main hinge and a second main hinge of a vehicle body structure according to an embodiment of the present invention;

[0032] Figure 7 is a schematic diagram of a first secondary hinge and a second secondary hinge of a vehicle body structure according to an embodiment of the present invention;

[0033] Figure 8 is a schematic diagram of the assembly of a main hinge and a vehicle body frame of a vehicle body structure according to an embodiment of the present invention;

[0034] Fig. 9 is a schematic diagram of assembling an upper body and a secondary hinge of a vehicle body structure according to an embodiment of the present invention;

[0035] Fig.10 is a schematic diagram of a second assembly tool according to an embodiment of the present invention;

[0036] Fig.11 is a schematic diagram of a second assembly tool according to an embodiment of the present invention from another angle;

[0037] Fig.12 is a schematic diagram of fixing a secondary hinge of a second assembly tool according to an embodiment of the present invention;

[0038] Fig.13 is a schematic diagram showing another angle of fixing the secondary hinge of the second assembly tool according to an embodiment of the present invention;

[0039] Fig.14 is a schematic diagram of fixing the secondary hinge and the upper body of the second assembly tool according to an embodiment of the present invention;

[0040] Fig.15 is a schematic diagram of a first assembly tool being fixed to a vehicle body mechanism according to an embodiment of the present invention;

[0041] Fig.16 yes Fig.15 A partial enlarged view of the main hinge in FIG.

[0042] Fig.17 is a front view of a first assembly tool according to an embodiment of the present invention;

[0043] Fig.18 is a schematic diagram from another angle of the first assembly tool according to an embodiment of the present invention;

[0044] Fig.19 3 is a schematic diagram of the first assembly tool according to an embodiment of the present invention from another angle.

[0045] Reference numerals:

[0046] 100. Body structure;

[0047] 1. Body frame; 11. Door opening; 12. Top longitudinal beam; 121. First positioning hole; 13. B-pillar; 131. Second positioning hole; 14. C-pillar; 141. Third positioning hole;

[0048] 2. gull-wing door; 21. upper body; 211. second connection hole; 212. fourth positioning hole; 213. fifth positioning hole; 22. lower body; 221. window frame;

[0049] 3. Main hinge; 3a. First main hinge; 3b. Second main hinge; 31. First hinge arm; 311. First through hole; 32. Second hinge arm; 321. Second through hole;

[0050] 4, secondary hinge; 4a, first secondary hinge; 4b, second secondary hinge; 41, third hinge arm; 411, third connecting hole; 42, fourth hinge arm; 421, fourth through hole;

[0051] 5. First bolt; 6. Second bolt; 7. Third bolt; 8. Fourth bolt;

[0052] 200, first assembly tool; 210, support frame; 220, first positioning mechanism; 230, second positioning mechanism; 240, first clamping mechanism;

[0053] 300, second assembly tool; 310, mounting substrate; 320, supporting structure; 330, third positioning structure; 340, fourth positioning structure; 350, second clamping mechanism; 360, third clamping mechanism. DETAILED DESCRIPTION

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0055] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0056] The following describes an assembly method for a gull-wing door 2 according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings.

[0057] like Figures 1 to 19 As shown, an assembly method for a gull-wing door 2 according to an embodiment of the first aspect of the present invention is provided, wherein the gull-wing door 2 includes an upper body 21 and a lower body 22 that are rotatably connected, and the upper body 21 is adapted to be rotatably connected to the vehicle body frame 1 via a main hinge 3, so that when the gull-wing door 2 is opened, the upper body 21 rotates relative to the vehicle body frame 1 and the lower body 22 rotates relative to the upper body 21 so that the door can be presented in a posture of spread wings.

[0058] The assembly method includes: fixing one of the hinge arms of the main hinge 3 to one of the upper body 21 and the body frame 1 by means of a self-locating bolt. Here, one of the hinge arms of the main hinge 3 refers to one of the two hinge arms of the main hinge 3 that can rotate relative to each other. That is to say, before installing the upper body 21 on the body frame 1, first use the self-locating bolt to connect one of the hinge arms of the main hinge 3 to the upper body 21 or the body frame 1, that is, one of the hinge arms of the main hinge 3 can be first fixed to the upper body 21 by means of a self-locating bolt, or one of the hinge arms of the main hinge 3 can be first fixed to the upper body 21 by means of a self-locating bolt, so that in the subsequent process of installing the upper body 21 on the body frame 1, it is only necessary to connect the other hinge arm of the main hinge 3 to the other of the upper body 21 and the body frame 1, and the difficulty of positioning and installation is low.

[0059] Among them, one of the hinge arms of the main hinge 3 is first fixed to the upper body 21 or the body frame 1 by using a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between one of the hinge arms of the main hinge 3 and the upper body 21 or the body frame 1 can be better corrected to ensure that the main hinge 3 can be accurately installed on the upper body 21 or the body frame 1 according to the preset installation position, and the tooling structure and process for positioning between the main hinge 3 and the upper body 21 or the body frame 1 are omitted, thereby ensuring the installation accuracy of the gull-wing door 2 while reducing the installation difficulty and cost of the gull-wing door 2.

[0060] Further, after one of the hinge arms of the main hinge 3 is connected to the upper body 21 or the body frame 1, the other hinge arm of the main hinge 3 is fixed to the other one of the upper body 21 and the body frame 1. That is, before the upper body 21 is installed on the body frame 1, the main hinge 3 is first fixed to one of the upper body 21 and the body frame 1, and then the main hinge 3 is connected to the other one of the upper body 21 and the body frame 1, so that the upper body 21 and the body frame 1 can be rotatably connected through the connection with the two hinge arms of the main hinge 3. For example, before the upper body 21 is installed on the body frame 1, the main hinge 3 can be fixed to the body frame 1 first, and then the upper body 21 can be fixed to the main hinge 3; or the main hinge 3 can be fixed to the upper body 21 first, and then the combined structure of the upper body 21 and the main hinge 3 can be fixed to the body frame 1 through the main hinge 3.

[0061] Furthermore, after the upper body 21 is connected to the vehicle body frame 1 through the main hinge 3, the lower body 22 is connected to the upper body 21. That is, in the process of installing the gull-wing door 2 to the vehicle body frame 1, the upper body 21 is first fixed to the vehicle body frame 1, and then the lower body 22 is connected to the upper body 21 to form the gull-wing door 2 structure with the upper body 21. Among them, since the lower body 22 is located on the side of the vehicle body frame 1, the lower body 22 is installed later, so that the lower body 22 can avoid blocking the installation of the upper body 21, thereby providing a larger operating space for the installation of the upper body 21, so as to reduce the difficulty of installing the upper body 21.

[0062] According to the assembly method for the gull-wing door 2 of the first aspect of the embodiment of the present invention, one of the hinge arms of the main hinge 3 is first fixed to the upper body 21 or the body frame 1 by using a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between one of the hinge arms of the main hinge 3 and the upper body 21 or the body frame 1 can be better corrected to ensure that the main hinge 3 can be accurately installed on the upper body 21 or the body frame 1 according to the preset installation position, and the tooling structure and process for positioning between the main hinge 3 and the upper body 21 or the body frame 1 are omitted, thereby reducing the installation difficulty and cost of the gull-wing door 2 while ensuring the installation accuracy of the gull-wing door 2.

[0063] According to some embodiments of the present invention, before fixing the other hinge arm of the main hinge 3 to the other one of the upper body 21 and the body frame 1, the method includes: positioning the position of the upper body 21 on the body frame 1 by the first assembly tool 200. That is, when the upper body 21 is installed on the body frame 1, the upper body 21 is positioned with the body frame 1 by the first assembly tool 200, so as to ensure that the upper body 21 is located at an accurate installation position, thereby improving the installation position accuracy of the upper body 21. In addition, after positioning with the body frame 1 by the first assembly tool 200, the connection between the other hinge arm of the main hinge 3 and the upper body 21 and the other one of the body frame 1 can be connected by ordinary bolts, thereby reducing the assembly cost of the gull-wing door 2.

[0064] Specifically, when the main hinge 3 is first installed on the vehicle body frame 1 and then the upper body 21 is fixed on the vehicle body frame 1 through the main hinge 3, the position between the upper body 21 and the vehicle body frame 1 is positioned by the first assembly tool 200. Since the main hinge 3 has been fixed on the vehicle body frame 1, the positioning between the upper body 21 and the main hinge 3 can be formed to ensure the precise connection between the upper body 21 and the main hinge 3.

[0065] According to some embodiments of the present invention, the upper body 21 is adapted to be rotatably connected with the lower body 22 through the secondary hinge 4. Before the lower body 22 is connected to the upper body 21, the assembly method further includes: positioning the position between the secondary hinge 4 and the upper body 21 by the second assembly tool 300 and fixing one of the hinge arms of the secondary hinge 4 to the upper body 21. That is, before the upper body 21 is connected to the lower body 22, the secondary hinge 4 for connecting the upper body 21 and the lower body 22 is first fixed to the upper body 21. Among them, since the upper body 21 has a relatively small size relative to the lower body 22. Therefore, compared with positioning and installing the secondary hinge 4 and the lower body 22, the size and load-bearing requirements of the second assembly tool 300 for positioning the secondary hinge 4 and the lower body 22 are smaller, thereby reducing the cost of the second assembly tool 300. In addition, after the secondary hinge 4 and the upper body 21 are positioned by the second assembly tool 300, ordinary bolts can be used to connect the secondary hinge 4 and the upper body 21, thereby reducing the assembly cost of the gull-wing door 2.

[0066] According to some embodiments of the present invention, connecting the lower body 22 to the upper body 21 includes: placing the lower body 22 in the door opening 11 of the vehicle body frame 1, and fixing the other hinge arm of the secondary hinge 4 to the lower body 22 by means of a self-positioning bolt. The door opening 11 can better support and position the position of the lower body 22, and at the same time, the automatic positioning function of the self-positioning bolt can better correct the position deviation between the other hinge arm of the secondary hinge 4 and the lower body 22, so as to ensure that the other hinge arm of the secondary hinge 4 can be accurately installed on the lower body 22 according to the preset installation position, and the tooling structure and process for positioning between the secondary hinge 4 and the lower body 22 are omitted, so that the installation accuracy of the gull-wing door 2 can be ensured while reducing the installation difficulty and cost of the gull-wing door 2.

[0067] According to some embodiments of the present invention, before the first assembly tool 200 is used to locate the position of the upper body 21 on the vehicle body frame 1 and the other hinge arm of the main hinge 3 is fixed to the other of the upper body 21 and the vehicle body frame 1, the second assembly tool 300 is used to locate the position between the secondary hinge 4 and the upper body 21 and one of the hinge arms of the secondary hinge 4 is fixed to the upper body 21. That is, before the upper body 21 is installed on the vehicle body frame 1, the secondary hinge 4 is first fixed to the upper body 21. In this way, the vehicle body frame 1 can be prevented from affecting the connection between the upper body 21 and the secondary hinge 4, and a larger operating space can be provided for the connection between the upper body 21 and the secondary hinge 4, thereby facilitating the arrangement of the second assembly tool 300 to reduce the difficulty of connecting the upper body 21 with the secondary hinge 4.

[0068] According to some embodiments of the present invention, the first assembly tool 200 includes a support frame 210 and a first positioning mechanism 220, a second positioning mechanism 230 and a first clamping mechanism 240 of the support frame 210, the support frame 210 is suitable for being supported on the lower side of the upper body 21, the first positioning mechanism 220 is used to position the support frame 210 on the vehicle body structure 100, the first clamping mechanism 240 is used to clamp the vehicle body structure 100 to fix the support frame 210 on the vehicle body structure 100, and the second positioning mechanism 230 is used to position the upper body 21. The second assembly tool 300 includes an installation base plate 310 and a support structure 320 provided with the installation base plate 310, a third positioning structure 330, a fourth positioning structure 340, a second clamping mechanism 350 and a third clamping structure. The base plate is located at the lower side of the upper body 21. The third positioning structure 330 is used to position the fourth hinge arm 42 of the secondary hinge 4. The third clamping mechanism 360 is used to fix the fourth hinge arm 42. The support structure 320 is used to support the third hinge arm 41 upward. The fourth positioning structure 340 is used to position the upper body 21. The third clamping mechanism 360 is used to fix the upper body 21.

[0069] In a specific example, the first positioning mechanism 220, the second positioning mechanism 230, the third positioning structure 330 and the fourth positioning structure 340 are all positioning pins. The first positioning mechanism 220 extends in the left-right direction toward the direction close to the vehicle body frame 1 and is provided with a plurality of them. The vehicle body structure 100 is formed with a plurality of positioning holes that are plugged and matched with the first positioning mechanism 220, such as two Y-direction first positioning holes 121 arranged at intervals along the front-to-back direction are formed on the left and right side surfaces of the top longitudinal beam 12, the first positioning hole 121 on the front side of the top longitudinal beam 12 is a round hole, and the first positioning hole 121 on the rear side of the top longitudinal beam 12 is an oblong hole extending along the front-to-back direction, such as the first positioning hole 121 on the front side of the top longitudinal beam 12 is a round hole with a diameter of 12 mm, and the first positioning hole 121 on the rear side of the top longitudinal beam 12 is an oblong hole of 16 mm*12 mm. A second positioning hole 131 in the Y direction is formed on the B-pillar 13 at the front side of the door opening 11, and a third positioning hole 141 in the Y direction is formed on the C-pillar 14 at the rear side of the door opening 11. The first positioning mechanism 220 has a plurality of holes corresponding to the two first positioning holes 121, the second positioning hole 131, and the third positioning hole 141. For example, the second positioning hole 131 is a 16 mm round hole, and the third positioning hole 141 is a 12 mm round hole.

[0070] The second positioning mechanism 230 extends in the up-down direction toward the direction close to the upper body 21 and is provided with a plurality of positioning holes that are plugged and matched with the plurality of second positioning mechanisms 230. For example, a fourth positioning hole 212 plugged with one of the second positioning mechanisms 230 is formed on the front crossbeam of the upper body 21, and a fifth positioning hole 213 plugged with another second positioning mechanism 230 is formed on the rear crossbeam of the upper body 21. The fourth positioning hole 212 is a round hole, and the fifth positioning hole 213 is an oblong hole. For example, the fourth positioning hole 212 is a round hole with a diameter of 13 mm, and the fifth positioning hole 213 is an oblong hole with a diameter of 19 mm*13 mm.

[0071] The third positioning structure 330 extends in the front-to-back direction and is plugged into and matched with the fourth through hole 421 on the fourth hinge arm 42, wherein the third positioning structure 330 for positioning the auxiliary hinge 4 on the front side extends forward, and the third positioning structure 330 for positioning the auxiliary hinge 4 on the rear side extends backward, and the third positioning structure 330 is also retractable in the front-to-back direction, so that the third positioning structure 330 can be withdrawn from the fourth through hole 421. At least two fourth positioning structures 340 are provided extending in the up-down direction toward the direction close to the upper body 21, and at least two fourth positioning structures 340 are respectively plugged into and matched with the fourth positioning hole 212 and the fifth positioning hole 213 on the upper body 21, so as to realize the positioning of the upper body 21 on the second assembly tool 300.

[0072] In addition, the first clamping mechanism 240, the second clamping mechanism 350 and the third clamping mechanism 360 all have an avoidance state and a clamping state. Specifically, when the first clamping mechanism 240 is in the avoidance state, it is located at the inner side of the door opening 11 to prevent interference with the positioning and installation of the mounting frame. When the first clamping mechanism 240 is in the clamping state, it clamps the outer peripheral edge of the door opening 11 from both inside and outside. When the second clamping mechanism 350 is in the avoidance state, it avoids the path of the fourth hinge arm 42 approaching or moving away from the second positioning mechanism 230 in the front-to-back direction. When the second clamping mechanism 350 is in the clamping state, it is used to clamp the fourth hinge arm 42 in the front-to-back direction. When the third clamping mechanism 360 is in the avoidance state, it avoids the path of the upper body 21 approaching or moving away from the third positioning structure 330 in the up-down direction. When the third clamping mechanism 360 is in the clamping state, it is used to clamp the upper body 21 in the up-down direction.

[0073] Specifically, during the assembly process of the gull-wing door 2:

[0074] Step 1: Use the first bolt 5 to fix the first hinge arms 31 of the first main hinge 3a and the second main hinge 3b on the top longitudinal beam 12.

[0075] Step 2: Position the fourth hinge arms 42 of the first secondary hinge 4a and the second secondary hinge 4b ​​on the corresponding third positioning mechanisms respectively through the plug-in cooperation of the fourth through hole 421 of the fourth hinge arm 42 and the third positioning structure 330, and clamp them with the second clamping structure, and press the third hinge arm 41 against the upper end of the support structure 320 by rotating the third hinge arm 41.

[0076] Step three, position the upper body 21 on the second assembly tool 300 by plugging and fitting the fourth positioning hole 212 and the fifth positioning hole 213 on the upper body 21 with the corresponding fourth positioning structure 340, and press the upper body 21 on it through the third clamping structure, and use the second bolt 6 to fix the third hinge arm 41 of the first secondary hinge 4a and the second secondary hinge 4b ​​on the upper body 21.

[0077] Step 4: Remove the combined structure of the upper body 21 , the first secondary hinge 4 a and the second secondary hinge 4 b from the second assembly tool 300 according to the reverse operation of steps 2 and 3.

[0078] Step 5: Position the first assembly tool 200 on the body frame 1 by plugging the first positioning mechanism 220 into the first positioning hole 121 , the second positioning hole 131 and the third positioning hole 141 on the body frame 1 , and fix the first assembly tool 200 by the first clamping mechanism 240 .

[0079] Step six: position the upper body 21 on the first assembly tool 200 by plugging and fitting the second positioning mechanism 230 with the fourth positioning hole 212 and the fifth positioning hole 213 of the upper body 21, and by flipping down the second hinge arm 32 of the first main hinge 3a and the second main hinge 3b, make the second hinge arm 32 stick to the upper surface of the upper body 21, and fix the second hinge arm 32 to the upper body 21 by the second bolt 6.

[0080] Step 7: The upper body 21 is lifted to separate from the first assembly tool 200 , and the first assembly tool 200 is lifted and lowered from the vehicle body frame 1 according to the reverse operation of step 5.

[0081] Step 8: Place the lower body 22 in the door opening 11 , flip over the fourth hinge arms 42 of the first secondary hinge 4 a and the second secondary hinge 4 b , and fix the fourth hinge arms 42 to the lower body 22 via the fourth bolts 8 .

[0082] It should be noted that steps 2 to 4, i.e., the connection process of the upper body 21 with the first secondary hinge 4a and the second secondary hinge 4b, are partially sequential to step 1, i.e., the connection process of the first main hinge 3a and the second main hinge 3b with the top longitudinal beam 12.

[0083] The following describes a vehicle body structure 100 according to a second embodiment of the present invention with reference to the accompanying drawings.

[0084] According to the vehicle body structure 100 of the embodiment of the second aspect of the present invention, it includes: a vehicle body frame 1, a gull-wing door 2, a main hinge 3 and a secondary hinge 4, the vehicle body frame 1 is formed with a door opening 11 and includes a top longitudinal beam 12 located at one side edge of the door opening 11, the gull-wing door 2 is arranged in the door opening 11 and includes an upper body 21 and a lower body 22, the top longitudinal beam 12 is located on the inner side of the upper body 21, an inner end of the upper body 21 is rotatably connected to the top longitudinal beam 12 through the main hinge 3, the main hinge 3 is connected to the upper body 21 and the top longitudinal beam 12 respectively through a first bolt 5 and a second bolt 6, at least one of the first bolt 5 and the second bolt 6 is a self-locating bolt, and an outer end of the upper body 21 is rotatably connected to the upper end of the lower body 22 through the secondary hinge 4.

[0085] That is to say, the main hinge 3 is fixed to at least one of the upper body 21 and the top longitudinal beam 12 by means of self-positioning bolts. By means of the automatic positioning function of the self-positioning bolts, the position deviation between the main hinge 3 and the upper body 21 or the body frame 1 can be better corrected to ensure that the main hinge 3 can be accurately installed on the upper body 21 or the body frame 1 according to the preset installation position, and the tooling structure and process for positioning the main hinge 3 and the upper body 21 or the body frame 1 are omitted, thereby reducing the installation difficulty and cost of the gull-wing door 2 while ensuring the installation accuracy of the gull-wing door 2.

[0086] According to the vehicle body structure 100 of the second embodiment of the present invention, at least one of the first bolt 5 and the second bolt 6 is a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between the main hinge 3 and the upper body 21 or the vehicle body frame 1 can be better corrected to ensure that the main hinge 3 can be accurately installed on the upper body 21 or the vehicle body frame 1 according to the preset installation position, and the tooling structure and process for positioning between the main hinge 3 and the upper body 21 or the vehicle body frame 1 are omitted, thereby ensuring the installation accuracy of the gull-wing door 2 while reducing the installation difficulty and cost of the gull-wing door 2.

[0087] According to some embodiments of the present invention, the main hinge 3 includes a first hinge arm 31 and a second hinge arm 32 that are rotatably connected, the first hinge arm 31 is connected to the side of the top longitudinal beam 12 facing the upper body 21 in the left-right direction, and the second hinge arm 32 is connected to the upper surface of the upper body 21. The side of the top longitudinal beam 12 facing the upper body 21 in the left-right direction has a relatively open space toward the side close to the upper body 21, and similarly, the space on the upper side of the upper body 21 is also relatively open. Therefore, by setting the connection position of the first hinge arm 31 and the top longitudinal beam 12 on the side of the top longitudinal beam 12 facing the upper body 21 in the left and right direction, and setting the connection position of the second hinge arm 32 and the upper body 21 on the upper surface of the upper body 21, a larger operating space can be provided for the connection between the main hinge 3 and the top longitudinal beam 12 and the upper body 21, so as to reduce the difficulty of connecting the main hinge 3 with the top longitudinal beam 12 and the upper body 21, and at the same time make the connection position of the main hinge 3 with the top longitudinal beam 12 and the upper body 21 more intuitive, so as to facilitate observation of the connection status of the main hinge 3 with the top longitudinal beam 12 and the upper body 21.

[0088] According to some embodiments of the present invention, a first connecting hole is formed on the side surface of the top longitudinal beam 12 facing the upper body 21 in the left-right direction, a first through hole 311 opposite to and connected to the first connecting hole is formed on the first hinge arm 31, and an internal thread screwed to the first bolt 5 is formed on the inner circumferential surface of the first connecting hole; a second connecting hole 211 is formed on the upper surface of the upper body 21, a second through hole 321 opposite to and connected to the second connecting hole 211 is formed on the second hinge arm 32, and an internal thread screwed to the second bolt 6 is formed on the inner circumferential surface of the second connecting hole 211.

[0089] That is to say, the first connecting hole and the first through hole 311 are Y-direction holes. In the process of installing the first hinge arm 31 to the top longitudinal beam 12, after aligning the first through hole 311 with the first connecting hole, the first bolt 5 can be screwed to the first connecting hole through the first through hole 311 from the side of the first hinge arm 31 away from the top assembly; the second connecting hole 211 and the second through hole 321 are Z-direction holes. In the process of installing the second hinge arm 32 to the upper body 21, after aligning the second through hole 321 with the second connecting hole 211, the second bolt 6 can be screwed to the second connecting hole 211 through the second through hole 321 from the side of the second hinge arm 32 away from the upper body 21, that is, the upper side of the second hinge arm 32. Therefore, the first bolt 5 and the second bolt 6 can be installed from the relatively open side of the corresponding connection position, thereby providing a larger operating space for the installation of the first bolt 5 and the second bolt 6, so as to reduce the difficulty of installing the first bolt 5 and the second bolt 6, and further improve the connection efficiency between the main hinge 3 and the upper body 21 and the top longitudinal beam 12, so as to improve the assembly efficiency of the gull-wing door 2.

[0090] In a specific embodiment, the main hinge 3 is a hinge structure, three first through holes 311 are formed on the first hinge arm 31, and three first connecting holes corresponding to the three first through holes 311 are formed on the top longitudinal beam 12. Figure 4 and Figure 6 Taking the main hinge 3 at the front side as an example, two first through holes 311 are arranged at intervals along the front-to-back direction, another first through hole 311 and the first through hole 311 at the front side are arranged at intervals along the up-down direction, the first through hole 311 at the upper front side is a round hole, the first through hole 311 at the upper rear side is an oblong hole extending along the front-to-back direction and has the same size as the first through hole 311 at the upper front side in the up-down direction, and the size of the first through hole 311 at the lower front side is larger than that of the first through hole 311 at the front side. The size of the first through hole 311 at the top is that the first through hole 311 at the bottom of the front side is a directional hole and the four right-angle positions are rounded. For example, the first through hole 311 at the top of the front side is a 12.6mm round hole, the first through hole 311 at the top of the rear side is a 14.6*12.6mm horizontal long round hole, the first through hole 311 at the bottom of the front side is a square hole with a side length of 14mm, and the four right-angle sides of the square hole are rounded R4.5, and the first connecting hole is a threaded hole with a nominal diameter of M10. In addition, the first hinge arm 31 is connected to the top longitudinal beam 12 by the first bolt 5, and the first bolt 5 is a self-positioning bolt. The diameter of the positioning part of the first bolt 5 is 12.4mm and the length is 3mm.

[0091] The second hinge arm 32 is formed with a plurality of second through holes 321 arranged in the left-right direction, and the upper surface of the upper body 21 at one end close to the top longitudinal beam 12 is formed with a plurality of second connection holes 211 corresponding to the plurality of second through holes 321, and the plurality of second through holes 321 are all square holes and the four right-angle positions are chamfered. For example, two second through holes 321 are provided on the second hinge arm 32, and the two second through holes 321 are both square holes with a side length of 14 mm, and the four right-angle sides of the square holes are chamfered with R4.5, and the second connection hole 211 is a threaded hole with a nominal diameter of M8. It should be noted that the main hinge 3 located at the rear side is symmetrically arranged with the main hinge 3 located at the front side, which will not be repeated here. In addition, the second hinge arm 32 is connected to the upper body 21 by a second bolt 6, and the second bolt 6 is an ordinary bolt with a nominal diameter of M8.

[0092] According to some embodiments of the present invention, the secondary hinge 4 is connected to the lower body 22 by a self-positioning bolt. Therefore, through the automatic positioning function of the self-positioning bolt, the position deviation between the secondary hinge 4 and the lower body 22 can be well corrected to ensure that the secondary hinge 4 can be accurately installed on the lower body 22 according to the preset installation position, and the tooling structure and process for positioning between the secondary hinge 4 and the lower body 22 are omitted, so that the installation accuracy of the gull-wing door 2 can be ensured while reducing the installation difficulty and cost of the gull-wing door 2.

[0093] According to some embodiments of the present invention, the secondary hinge 4 includes a third hinge arm 41 and a fourth hinge arm 42 that are rotatably connected, the third hinge arm 41 is connected to the lower surface of the upper body 21, the lower body 22 includes a window frame 221, and the fourth hinge arm 42 is connected to the inner side surface of the window frame 221 that is opposite in the front-to-back direction. After the lower body 22 is placed in the door opening 11, since the window frame 221 is a frame structure, the side surface of the window frame 221 that is opposite in the front-to-back direction is easier to install, and the connection position of the secondary hinge 4 and the lower body 22 is located on the inner side surface of the window frame 221 in the front-to-back direction, which can reduce the difficulty of connecting the secondary hinge 4 and the lower body 22, so as to improve the assembly efficiency. In addition, since the fourth hinge arm 42 is located on the inner side surface of the window frame 221 that is opposite in the front-to-back direction, by setting the connection position of the secondary hinge 4 and the upper body 21 on the lower surface of the upper body 21, the difficulty of arranging the secondary hinge 4 can be reduced.

[0094] According to some embodiments of the present invention, the third hinge arm 41 is connected to the upper body 21 through the third bolt 7, and the fourth hinge arm 42 is connected to the lower body 22 through the fourth bolt 8; wherein, a third connecting hole 411 is formed on the side surface of the third hinge arm 41 facing the lower side surface of the upper body 21, a third through hole opposite to and connected to the third connecting hole 411 is formed on the upper body 21, and an internal thread screwed to the third bolt 7 is formed on the inner circumferential surface of the third connecting hole 411; a fourth connecting hole is formed on the opposite sides of the window frame 221 in the front-to-back direction, and a fourth through hole 421 opposite to and connected to the fourth connecting hole is formed on the fourth hinge arm 42, and an internal thread screwed to the fourth bolt 8 is formed in the fourth connecting hole.

[0095] That is to say, the third connecting hole 411 and the third through hole are Z-direction holes. In the process of installing the third hinge arm 41 to the upper body 21, after aligning the third connecting hole 411 with the third through hole, the third bolt 7 can be screwed to the third connecting hole 411 through the third through hole from the side of the upper body 21 away from the third hinge arm 41, that is, the upper side of the upper body 21; the fourth connecting hole and the fourth through hole 421 are X-direction holes. In the process of installing the fourth hinge arm 42 to the lower body 22, after aligning the fourth through hole 421 with the fourth connecting hole, the fourth bolt 8 can be screwed to the fourth connecting hole through the fourth through hole 421 from the side of the fourth hinge arm 42 away from the fourth connecting hole, that is, the side of the fourth hinge arm 42 toward the inner center of the window frame 221. Therefore, the third bolt 7 and the fourth bolt 8 can be installed from the relatively open side of the corresponding connection position, thereby providing a larger operating space for the installation of the third bolt 7 and the fourth bolt 8, thereby reducing the difficulty of installing the third bolt 7 and the fourth bolt 8, and further improving the connection efficiency between the main hinge 3 and the upper body 21 and the lower body 22, thereby improving the assembly efficiency of the gull-wing door 2.

[0096] In a specific example, the secondary hinge 4 is a hinge structure, and a plurality of third connection holes 411 arranged at intervals in the left-right direction are formed on the third hinge arm 41. A plurality of third through holes penetrating in the up-down direction and corresponding to the plurality of third connection holes 411 are formed on the front end of the upper body 21, such as the front cross beam of the upper body 21, and the third through holes are round holes. For example, three third through holes arranged at intervals in the left-right direction are formed on the front cross beam of the upper body 21, and the third through hole is adjacent to one end of the upper body 21 facing the lower body 22, and the third through hole is a round hole with a diameter of 20 mm. There are three third connection holes 411 on the third hinge arm 41 corresponding to the third through holes, and the third connection holes 411 are threaded holes with a nominal diameter of M8. In addition, the third hinge arm 41 is connected to the upper body 21 by a third bolt 7, and the third bolt 7 is a common bolt with a nominal diameter of M8.

[0097] The fourth hinge arm 42 is formed with a plurality of fourth through holes 421 arranged at intervals in the up-down direction, and the window frame 221 is formed with a plurality of fourth connection holes corresponding to the plurality of fourth through holes 421 on the inner side surfaces opposite to each other in the front-back direction, and the fourth connection holes are arranged adjacent to the upper end of the window frame 221. Among them, one of the plurality of fourth through holes 421 is a round hole, and the rest are oblong holes extending in the up-down direction. For example, two fourth through holes 421 are formed on the fourth hinge arm 42, the fourth through hole 421 located on the lower side is a round hole with a diameter of 10.6 mm, the fourth through hole 421 located on the upper side is an oblong hole with a diameter of 12.6*10.6 mm, and the fourth connection hole is a threaded hole with a nominal diameter of M8. In addition, the fourth hinge arm 42 is connected to the lower body 22 by a fourth bolt 8, and the fourth bolt 8 is a self-positioning bolt, and the positioning portion of the fourth bolt 8 has a diameter of 10.4 mm and a length of 2.1 mm.

[0098] According to some embodiments of the present invention, the self-positioning bolt includes: a head, a positioning portion and a connecting portion, the positioning portion is connected between the head and the connecting portion, the diameters of the head, the positioning portion and the connecting portion decrease in sequence, and the diameter of the positioning portion decreases in the direction from the head toward the connecting portion. Therefore, when the self-positioning bolt is installed on the main hinge 3, such as when the self-positioning bolt is used to connect the first hinge arm 31 and the top longitudinal beam 12, the connecting portion is first inserted into the first through hole 311 and aligned with the first connecting hole and gradually tightened. When the positioning portion begins to enter the first through hole 311, the inner circumference of the first through hole 311 cooperates with the outer circumference of the positioning portion, so that the first hinge arm 31 can be pushed to move to the first through hole 311. The centerline axis of the self-positioning bolt and the center axis of the first connecting hole coincide with each other, thereby realizing the self-positioning of the first hinge arm 31 when it is installed on the top longitudinal beam 12.

[0099] According to some embodiments of the present invention, a plurality of main hinges 3 and secondary hinges 4 are arranged at intervals along the front-to-back direction. Thus, the connection position between the upper body 21 and the top longitudinal beam 12 in the front-to-back direction can be increased by a plurality of main hinges 3, and the connection position between the upper body 21 and the lower body 22 in the front-to-back direction can be increased by a plurality of secondary hinges 4, so that the connection stability between the upper body 21 and the top longitudinal beam 12 and the lower body 22 can be improved, and the stability of the rotation of the upper body 21 relative to the top longitudinal beam 12 can be improved under the action of the plurality of main hinges 3, and at the same time, the stability of the rotation of the lower body 22 relative to the upper body 21 can be improved under the action of the plurality of secondary hinges 4, so as to improve the deformation stability of the gull-wing door 2.

[0100] According to some embodiments of the present invention, the main hinge 3 includes a first main hinge 3a and a second main hinge 3b symmetrically distributed along the front-to-back direction, and the secondary hinge 4 includes a first secondary hinge 4a and a second secondary hinge 4b ​​symmetrically arranged along the front-to-back direction. Among them, the symmetry axes of the first main hinge 3a and the second main hinge 3b and the symmetry axes of the first secondary hinge 4a and the second secondary hinge 4b ​​are all straight lines extending in the up-down direction and being the center of the gull-wing door 2 in the front-to-back direction. Therefore, the first main hinge 3a and the second main hinge 3b symmetrically distributed along the front-to-back direction can ensure uniform force between the upper body 21 and the top longitudinal beam 12, and the first secondary hinge 4a and the second secondary hinge 4b ​​symmetrically distributed along the front-to-back direction can ensure uniform force between the upper body 21 and the body, thereby improving the stability of the connection between the upper body 21 and the top longitudinal beam 12 and the lower body 22.

[0101] A vehicle according to a third embodiment of the present invention will be described below with reference to the accompanying drawings.

[0102] A vehicle according to an embodiment of a third aspect of the present invention includes: a vehicle body structure 100 .

[0103] According to the vehicle of the third aspect embodiment of the present invention, at least one of the first bolt 5 and the second bolt 6 is a self-positioning bolt. Through the automatic positioning function of the self-positioning bolt, the position deviation between the main hinge 3 and the upper body 21 or the body frame 1 can be better corrected to ensure that the main hinge 3 can be accurately installed on the upper body 21 or the body frame 1 according to the preset installation position, and the tooling structure and process for positioning between the main hinge 3 and the upper body 21 or the body frame 1 are omitted, thereby ensuring the installation accuracy of the gull-wing door 2 while reducing the installation difficulty and cost of the gull-wing door 2.

[0104] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0106] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for assembling a gull-wing door, characterized in that: The gull-wing door comprises an upper body and a lower body which are rotatably connected, wherein the upper body is adapted to be rotatably connected to a vehicle body frame via a main hinge, and the assembly method comprises: One of the hinge arms of the main hinge is fixed to one of the upper body and the vehicle body frame by a self-locating bolt; fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame; Connect the lower body to the upper body.

2. The assembly method for a gull-wing door according to claim 1, characterized in that: Before fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame, the method includes: positioning the upper body on the vehicle body frame by using a first assembly tool.

3. The assembly method for a gull-wing door according to claim 1, characterized in that: The upper body is adapted to be rotatably connected to the lower body via a secondary hinge. Before the lower body is connected to the upper body, the assembly method further comprises: The position between the secondary hinge and the upper body is positioned by the second assembly tool, and one of the hinge arms of the secondary hinge is fixed on the upper body.

4. The assembly method for a gull-wing door according to claim 3, characterized in that: The step of connecting the lower body to the upper body comprises: The lower body is placed in the door opening of the vehicle body frame, and the other hinge arm of the secondary hinge is fixed to the lower body by means of a self-locating bolt.

5. The assembly method for a gull-wing door according to claim 3, characterized in that: Before fixing the other hinge arm of the main hinge to the other of the upper body and the vehicle body frame, the position between the secondary hinge and the upper body is positioned by a second assembly tool and one hinge arm of the secondary hinge is fixed to the upper body.

6. A vehicle body structure, characterized in that: include: a vehicle body frame, forming a door opening and including a top longitudinal beam located at one edge of the door opening; A gull-wing door is arranged in the door opening and includes an upper body and a lower body, the top longitudinal beam is located inside the upper body, an inner end of the upper body is rotatably connected to the top longitudinal beam through a main hinge, the main hinge is connected to the upper body and the top longitudinal beam respectively through a first bolt and a second bolt, at least one of the first bolt and the second bolt is a self-locating bolt, and an outer end of the upper body is rotatably connected to the upper end of the lower body through a secondary hinge.

7. The vehicle body structure according to claim 6, characterized in that: The main hinge includes a first hinge arm and a second hinge arm which are rotatably connected. The first hinge arm is connected to the side of the top longitudinal beam facing the upper body in the left-right direction, and the second hinge arm is connected to the upper surface of the upper body.

8. The vehicle body structure according to claim 7, characterized in that: The top longitudinal beam is formed with a first connection hole on a side surface facing the upper body in the left-right direction, the first hinge arm is formed with a first through hole opposite to and connected with the first connection hole, and the inner peripheral surface of the first connection hole is formed with an internal thread screwed with the first bolt; A second connection hole is formed on the upper surface of the upper body, a second through hole opposite to and connected to the second connection hole is formed on the second hinge arm, and an internal thread threadedly connected to the second bolt is formed on the inner circumferential surface of the second connection hole.

9. The vehicle body structure according to claim 6, characterized in that: The secondary hinge is connected to the lower body via self-locating bolts.

10. The vehicle body structure according to claim 6, characterized in that: The secondary hinge includes a third hinge arm and a fourth hinge arm which are rotatably connected, the third hinge arm is connected to the lower surface of the upper body, the lower body includes a window frame, and the fourth hinge arm is connected to the inner side surfaces of the window frame which are opposite in the front-rear direction.

11. The vehicle body structure according to claim 10, characterized in that: The third hinge arm is connected to the upper body via a third bolt, and the fourth hinge arm is connected to the lower body via a fourth bolt; wherein, A third connecting hole is formed on the side surface of the third hinge arm facing the lower side surface of the upper body, a third through hole opposite to and connected to the third connecting hole is formed on the upper body, and an internal thread screwed with the third bolt is formed on the inner circumferential surface of the third connecting hole; The window frame is formed with a fourth connection hole on opposite sides in the front-to-back direction, the fourth hinge arm is formed with a fourth through hole opposite to and connected with the fourth connection hole, and the fourth connection hole is formed with an internal thread threaded with the fourth bolt.

12. The vehicle body structure according to claim 6, characterized in that: The self-positioning bolt includes: a head, a positioning portion and a connecting portion, the positioning portion is connected between the head and the connecting portion, the diameters of the head, the positioning portion and the connecting portion decrease successively, and the diameter of the positioning portion decreases in the direction from the head toward the connecting portion.

13. The vehicle body structure according to claim 6, characterized in that: The main hinge and the auxiliary hinge are each provided with a plurality of hinges arranged at intervals along the front-to-back direction.

14. The vehicle body structure according to claim 6, characterized in that: The main hinge includes a first main hinge and a second main hinge symmetrically distributed along the front-to-back direction, and the secondary hinge includes a first secondary hinge and a second secondary hinge symmetrically arranged along the front-to-back direction.

15. A vehicle, characterized in that: include: A vehicle body structure according to any one of claims 6 to 14.

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