Hinge and trunk lid adjusting method

By combining hinge fixtures and angle adjustment devices, the hinge assembly problem of small-sized vehicles with small Y-axis trunk openings was solved, enabling precise adjustment of the trunk lid and ensuring the overall vehicle appearance quality.

CN121363357APending Publication Date: 2026-01-20CHINA FAW CO LTD
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Patent Information

Application Number
CN202511695388.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

For vehicles with a small Y-axis trunk opening, it is impossible to effectively assemble the trunk lid and hinges. Furthermore, the electric trunk lid deforms in the X-axis after installation, and there is a lack of effective adjustment methods to ensure the overall vehicle appearance requirements.

Method used

Precise adjustments are made using hinge fixtures. The first end of the hinge is connected to the vehicle body. The luggage compartment cover connecting bolt mounting holes with the allowance of the angle adjustment device and the through hole are used to combine X, Z and Y direction adjustments to ensure that the size of the luggage compartment cover meets the requirements, and precise adjustments are made through the locking hook.

Benefits of technology

It enables the smooth assembly of hinges on vehicles with smaller Y-axis dimensions, avoids the problem of uneven surface gaps around the trunk lid, reduces the difficulty of adjustment, and corrects the deformation effect after the electric strut is assembled.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a hinge and a trunk lid adjusting method, and belongs to the technical field of automobile assembly.The hinge is characterized in that a first end of the hinge is provided with an automobile body connecting bolt mounting hole and an angle adjusting device, and the first end of the hinge is mounted on an automobile body through the automobile body connecting bolt mounting hole and an automobile body connecting bolt; the angle between the first hinge end and the second hinge end is changed through the angle adjusting device. A trunk lid connecting bolt mounting hole is formed in the second end of the hinge, and the second end of the hinge is mounted on the trunk lid through the trunk lid connecting bolt mounting hole and a trunk lid connecting bolt. Hinge assembly can be smoothly completed on a vehicle with the trunk opening small in Y-direction size, it is effectively guaranteed that the size of the periphery of the trunk lid meets the requirement, and the problem that the clearance face of the periphery of the trunk lid is poor is solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile assembly, in particular to a hinge and trunk lid adjusting method. BACKGROUND

[0002] Due to the structural limitations of the vehicle body, the trunk lid and the hinge cannot be assembled together and then assembled on the vehicle body for the vehicle with a small Y-direction size of the trunk opening. In addition, the left and right sides of the electric trunk lid are provided with electric supporting rods and other trunk accessories. The X-direction size of the trunk lid will be deformed before and after the assembly of the electric supporting rods. Therefore, there is a lack of an effective adjusting method to ensure that the final vehicle DTS of the trunk lid is achieved. SUMMARY

[0003] The purpose of the present application is to provide a hinge and trunk lid adjusting method, which can successfully complete the hinge assembly on the vehicle with a small Y-direction size of the trunk opening, effectively ensure that the size of the trunk lid circumference meets the requirements, and avoid the problem of poor gap difference between the trunk lid circumference.

[0004] The present application provides the following solutions:

[0005] In a first aspect, the present application discloses a hinge for connecting a vehicle body and a trunk lid, characterized in that,

[0006] The first end of the hinge is provided with a vehicle body connecting bolt mounting hole and an angle adjusting device. The first end of the hinge is mounted on the vehicle body through the vehicle body connecting bolt mounting hole and a vehicle body connecting bolt. The angle between the first end of the hinge and the second end of the hinge is changed through the angle adjusting device.

[0007] The second end of the hinge is provided with a trunk lid connecting bolt mounting hole. The second end of the hinge is mounted on the trunk lid through the trunk lid connecting bolt mounting hole and a trunk lid connecting bolt.

[0008] Preferably, the trunk lid connecting bolt mounting hole is provided with at least two through holes with a through hole allowance. The second end of the hinge is further provided with a process bolt mounting hole, which is arranged between the two adjacent trunk lid connecting bolt mounting holes.

[0009] Preferably, the angle adjusting device is an angle connecting bolt.

[0010] The first end of the hinge is detachably connected to the middle part of the hinge connecting piece through the angle connecting bolt. The vehicle body connecting bolt mounting hole is arranged at the four corners of the hinge connecting piece.

[0011] In a second aspect, the present application further discloses a trunk lid adjusting method, which is completed by the above-mentioned hinge. The method comprises the following steps:

[0012] S1: install the first end of the hinge to the vehicle body, screw in the partial vehicle body connecting bolts, install the hinge fixture to the vehicle body, fix the hinge to the hinge fixture, and then tighten the vehicle body connecting bolts that have been screwed in, and remove the hinge fixture;

[0013] S2: install the trunk lid to the second end of the hinge, and screw in the trunk lid connecting bolts;

[0014] S3: adjust the trunk lid in the X direction, the Z direction, and the Y direction in sequence;

[0015] S4: install the trunk accessories and the hooks, adjust the hooks in the Y direction according to the gap between the trunk lid and the side walls of the vehicle body, adjust the surface difference of the four corners of the trunk lid, wherein the trunk accessories include electric supporting rods;

[0016] S5: detect whether the X direction deformation of the electric supporting rods in the trunk lid meets the requirements of the whole vehicle, and if not, loosen the trunk lid connecting bolts and adjust the trunk lid in the X direction.

[0017] Preferably, the hinge fixture comprises:

[0018] a first supporting rod, both ends of the first supporting rod are provided with a second supporting rod;

[0019] at least four profiled positioning blocks, the profiled positioning blocks are respectively arranged at the front and rear ends of the second supporting rod, at least two profiled positioning blocks are respectively in abutment with the left and right sides of the front part of the side wall of the vehicle body, and the other at least two profiled positioning blocks are respectively in abutment with the left and right sides of the middle part of the side wall of the vehicle body;

[0020] a vehicle body pressing head, the upper end of the vehicle body pressing head is arranged at the lower end of the first supporting rod, and the lower end of the vehicle body pressing head is clamped on the vehicle body through a vehicle body pressing head clamping part;

[0021] a hinge pressing head, the upper end of the hinge pressing head is arranged at the lower end of the first supporting rod, the lower end of the hinge pressing head is provided with a hinge pressing head clamping part, the hinge pressing head clamping part is provided with a hinge pressing head positioning pin, the lower end of the hinge pressing head is clamped on the hinge through the hinge pressing head clamping part, and the hinge pressing head positioning pin is inserted into the trunk lid connecting bolt mounting hole.

[0022] Preferably, the S1 step specifically comprises:

[0023] S101: place the first ends of the left and right hinges on the corresponding hinge mounting areas of the vehicle body, and screw at least two vehicle body connecting bolts located at opposite corners into the vehicle body connecting bolt mounting holes;

[0024] S102: Align the profiling positioning block of the hinge tool to the edge of the body side, clamp the body pressure head clamping part on the body, clamp the hinge pressure head clamping part on the hinge, and insert the hinge pressure head positioning pin into the luggage compartment cover connecting bolt mounting hole;

[0025] S103: Tighten the body connecting bolt that has been screwed in, remove the body pressure head clamping part and the hinge pressure head clamping part, and move away the hinge tool.

[0026] Preferably, the S2 step specifically includes:

[0027] The S2 step specifically includes:

[0028] S201: Install the rear cushion block to the body, and install the lower part of the luggage compartment cover on the upper part of the rear cushion block;

[0029] S202: After aligning the luggage compartment cover and the second end of the hinge, first tighten the process positioning bolt in the process bolt mounting hole, then tighten the luggage compartment cover connecting bolt in the luggage compartment cover connecting bolt mounting hole away from the first end of the hinge and the luggage compartment cover connecting bolt mounting hole close to the first end of the hinge, and finally remove the process positioning bolt.

[0030] Preferably, the lower end of the rear cushion block is installed on the body through the first cushion block positioning pin and the second cushion block positioning pin, and the upper end is provided with a luggage compartment cover supporting surface which supports the lower end of the luggage compartment cover.

[0031] Preferably, the S3 step specifically includes:

[0032] S301: Loosen the body connecting bolt that has been tightened, adjust the luggage compartment cover in the X direction, and tighten the body connecting bolt after adjustment is completed;

[0033] S302: Loosen the angle connecting bolt, change the angle between the first end of the hinge and the second end of the hinge, thereby realizing the Z direction adjustment of the luggage compartment cover, and tighten the angle adjusting bolt after adjustment is completed;

[0034] S303: Loosen the body connecting bolt that has been tightened, adjust the luggage compartment cover in the Y direction according to the measured gap between the luggage compartment cover and the left and right side walls, tighten the remaining body connecting bolt after adjustment is completed, and tighten all the body connecting bolts.

[0035] Preferably, the S4 step specifically includes:

[0036] S401: Install the sealing strip and the electric support rod at the inner edge of the body;

[0037] S402: Adjust the lock hook installed in the middle of the rear end of the luggage compartment cover in the Y direction to ensure that the left and right gaps of the luggage compartment cover are appropriate;

[0038] S403: Rotate the four rubber plugs at the four corners of the inner side of the trunk lid, and adjust the surface difference of the four corners of the trunk lid.

[0039] Compared with the prior art, the present application has the following advantages:

[0040] 1. The present application precisely adjusts the first end of the hinge already installed on the vehicle body by means of the hinge tool, thereby improving the installation precision of the hinge and the vehicle body. Then, the second end of the hinge is connected to the trunk lid, the trunk lid is adjusted in X direction, Z direction and first Y direction in sequence, and the second Y direction adjustment is performed through the lock hook. The two Y direction adjustments respectively realize the coarse adjustment and fine adjustment of the Y direction of the trunk lid. Finally, the X direction size change of the trunk lid caused by the X direction deformation of the electric supporting rod is corrected by means of the trunk lid connecting bolt mounting hole with overhole allowance in X direction. The present application can successfully complete the hinge assembly on the vehicle with small Y direction size of the trunk opening, effectively ensure that the size of the trunk lid circumference meets the requirements, and avoid the problem of poor gap surface difference between the trunk lid circumference.

[0041] 2. The prior art does not consider the influence of the installation of the trunk accessories (electric supporting rod, trunk sealing strip, etc.) on the X direction size of the whole vehicle, especially the electric supporting rod installed on the left and right sides of the electric trunk lid. After the assembly of the electric supporting rod, the X direction size of the trunk lid will be deformed. The present application moves the hinge in X direction relative to the trunk lid connecting bolt mounting hole with overhole allowance by loosening the trunk lid connecting bolt, thereby eliminating the influence of the assembly of the electric supporting rod on the X direction of the whole vehicle.

[0042] 3. Most of the prior art adopts left / right split type hinge, and the relative size deviation of the left and right hinges after assembly is easy to occur, which leads to increased adjustment difficulty. The present application uses an integrated hinge tool, which can fully ensure the relative relationship of the left and right hinges and reduce the adjustment difficulty.

[0043] 4. The present application is a complete plastic trunk lid assembly and adjustment scheme, which fully considers all process control points affecting the appearance size of the trunk lid. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a structural schematic view of the hinge of the embodiment of the present application;

[0045] Figure 2 is a structural schematic view of the hinge of the embodiment of the present application from another angle;

[0046] Figure 3 is a schematic view of the combination of the hinge, the hinge tool and the vehicle body of the embodiment of the present application;

[0047] Figure 4 is a structural schematic view of the combination of the hinge, the hinge tool and the vehicle body of the embodiment of the present application from another angle;

[0048] Figure 5 is the position diagram of the body mounting bolt of the embodiment of the present application;

[0049] Figure 6 is the diagram of the hinge mounted on the trunk lid of the embodiment of the present application;

[0050] Figure 7 is the diagram of the lock hook of the trunk lid of the embodiment of the present application;

[0051] Figure 8 is the structural diagram of the hinge device of the embodiment of the present application;

[0052] Figure 9 is the structural diagram of the hinge device of the embodiment of the present application from another angle;

[0053] Figure 10 is the structural diagram of the rear cushion block of the embodiment of the present application;

[0054] Figure 11 is the structural diagram of the rear cushion block of the embodiment of the present application from another angle;

[0055] In the figure:

[0056] 1. hinge; 11. body connecting bolt mounting hole; 12. trunk lid connecting bolt mounting hole; 13. angle connecting bolt; 14. process bolt mounting hole; 15. hinge connecting piece; 2. body; 21. body connecting bolt; 3. trunk lid; 31. trunk lid connecting bolt; 32. lock hook; 33. process positioning bolt; 4. hinge device; 41. first support rod; 42. second support rod; 43. profiled positioning block; 44. body pressing head; 45. hinge pressing head; 451. hinge pressing head positioning pin; 5. rear cushion block; 51. first cushion block positioning pin; 52. second cushion block positioning pin; 53. threaded handle; 54. trunk lid support surface. DETAILED DESCRIPTION

[0057] In order to make the purposes, technical solutions and advantages of the present application more clear, the present application will be described in further detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0058] The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the embodiments of the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0059] It should be understood that the term "and / or" as used herein merely describes associated objects, and can exist in three forms: for example, A and / or B can mean that only A exists, both A and B exist, or only B exists. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects.

[0060] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present application to describe various processes, steps, operations, elements, and / or components, these descriptions are not intended to limit the scope of the present application. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, first can also be referred to as second, and similarly, second can also be referred to as first.

[0061] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting." Similarly, the phrase "if determined" or "if detecting (a stated condition or event)" can be interpreted to mean "when determined" or "in response to determining" or "when detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)," depending on the context.

[0062] It should also be noted that the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a product or article that comprises a list of elements does not exclude the presence of other elements not expressly listed, or the presence of additional elements inherent to such product or article. Without more limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the product or article that includes the element.

[0063] It should be particularly noted that the symbols and / or numbers present in the specification, if not marked in the description of the drawings, are not drawing reference numbers.

[0064] Embodiment 1

[0065] Referring to Figures 1-6 As shown in the drawings, the hinge 1 provided by the embodiments of the present application is used to connect a vehicle body 2 and a trunk lid 3,

[0066] The first end of the hinge 1 is provided with a vehicle body connecting bolt mounting hole 11 and an angle adjusting device, the first end of the hinge 1 is installed on the vehicle body 2 through the vehicle body connecting bolt mounting hole 11 and a vehicle body connecting bolt 21, and the angle between the first end of the hinge 1 and the second end of the hinge 1 is changed through the angle adjusting device.

[0067] The second end of the hinge 1 is provided with a trunk lid connecting bolt mounting hole 12, and the second end of the hinge 1 is installed on the trunk lid 3 through the trunk lid connecting bolt mounting hole 12 and a trunk lid connecting bolt 31.

[0068] The two ends of the hinge 1 are connected with the vehicle body 2 and the trunk lid 3 respectively, the angle between the first end of the hinge 1 and the second end of the hinge 1 is changed through the angle adjusting device of the hinge 1, so as to facilitate fine adjustment and better adapt to the vehicle body 2 and the trunk lid 3.

[0069] Referring to Figure 1 , 2 , the trunk lid connecting bolt mounting hole 12 is provided with at least two through holes with excess amount, and the second end of the hinge 1 is further provided with a process bolt mounting hole 14, which is arranged between the two adjacent trunk lid connecting bolt mounting holes 12.

[0070] The process bolt mounting hole 14 is designed for installing a process positioning bolt 33 to realize accurate positioning in the installation process, when the trunk lid 3 and the second end of the hinge 1 are connected for the first time, the corresponding bolts are inserted into the process bolt mounting hole 14 and the bolt mounting hole 12 respectively and tightened, and then the process positioning bolt 33 in the process bolt mounting hole 14 is removed.

[0071] The electrically operated trunk lid is provided with electrically operated struts on the left and right sides, and after the electrically operated struts are assembled, the X-direction dimension of the trunk lid will be deformed, the hinge 1 is moved in the X-direction relative to the trunk lid connecting bolt mounting hole 12 with excess amount by loosening the trunk lid connecting bolt 31, so as to eliminate the influence of the electrically operated struts on the vehicle in the X-direction after the electrically operated struts are assembled.

[0072] Referring to Figure 1 , 2 , the angle adjusting device is an angle connecting bolt 13.

[0073] The first end of the hinge 1 is detachably connected with the middle part of the hinge connecting piece 15 through the angle connecting bolt 13, and the vehicle body connecting bolt mounting hole 11 is arranged at the four corners of the hinge connecting piece 15.

[0074] In this embodiment, the vehicle body connecting bolt mounting hole 11 is provided with four, which are respectively arranged at the four corners of the hinge connecting piece 15, so as to realize stable assembly. The angle connecting bolt 13 fixes the first end of the hinge 1 and the hinge connecting piece 15, the angle connecting bolt 13 is loosened, the first end of the hinge 1 and the hinge connecting piece 15 are relatively rotated, and finally the angle connecting bolt 13 is tightened, so that the angle adjustment can be completed.

[0075] Embodiment 2

[0076] Referring to Figures 1-9 The embodiment of the present application provides a luggage cover assembly and adjustment method, which is completed through the hinge 1, and the method comprises the following steps:

[0077] S1: install the first end of the hinge 1 on the vehicle body 2, screw in part of the vehicle body connecting bolt 21, install the hinge assembly 4 on the vehicle body 2, fix the hinge 1 to the hinge assembly 4, then tighten the vehicle body connecting bolt 21 that has been screwed in, and remove the hinge assembly 4;

[0078] S2: install the luggage cover 3 on the second end of the hinge 1, and screw in the luggage cover connecting bolt 31;

[0079] S3: adjust the luggage cover 3 in X direction, Z direction and Y direction in sequence;

[0080] S4: install the luggage accessories and the hook 32, adjust the hook 32 in Y direction according to the gap between the luggage cover 3 and the side wall of the vehicle body 2, adjust the surface difference of the four corners of the luggage cover 3; wherein the luggage accessories include an electric supporting rod;

[0081] S5: detect whether the X direction deformation of the electric supporting rod in the luggage cover 3 meets the requirements of the whole vehicle, if not, loosen the luggage cover connecting bolt 31, and adjust the luggage cover 3 in X direction.

[0082] The hinge assembly 4 is used for accurately adjusting the first end of the hinge 1 that has been installed on the vehicle body, so as to improve the installation accuracy of the hinge 1 and the vehicle body. Then the connection between the second end of the hinge and the luggage cover 3 is completed in sequence, the X direction, Z direction and first Y direction adjustment of the luggage cover 3 are completed in sequence, the second Y direction adjustment is completed through the hook 32, the two Y direction adjustments respectively realize the coarse adjustment and fine adjustment of the Y direction of the luggage cover, and finally the X direction size change of the luggage cover caused by the X direction deformation of the electric supporting rod is corrected through the luggage cover connecting bolt mounting hole 12 with the overhole allowance in X direction.

[0083] Referring to Figure 3 , 4 , 8, 9, the hinge assembly 4 comprises:

[0084] The first supporting rod 41 is provided with the second supporting rod 42 at the left and right ends of the first supporting rod 41.

[0085] The profiled positioning blocks 43 are provided at least four, and the profiled positioning blocks 43 are respectively provided at the front and rear ends of the second support rod 42, and at least two profiled positioning blocks 43 are respectively abutted with the left and right sides of the front side wall of the vehicle body 2, and at least two other profiled positioning blocks 43 are respectively abutted with the left and right sides of the middle side wall of the vehicle body 2;

[0086] The vehicle body pressing head 44 is provided at the lower end of the first support rod 41, and the lower end of the vehicle body pressing head 44 is clamped on the vehicle body 2 through the vehicle body pressing head clamping part;

[0087] The hinge pressing head 45 is provided at the lower end of the first support rod 41, and the lower end of the hinge pressing head 45 is provided with a hinge pressing head clamping part, and the hinge pressing head clamping part is provided with a hinge pressing head positioning pin 451, and the lower end of the hinge pressing head 45 is clamped on the hinge 1 through the hinge pressing head clamping part, and the hinge pressing head positioning pin 451 is inserted into the trunk lid connecting bolt mounting hole 12.

[0088] The middle side wall and the front side wall in contact with the profiled positioning blocks are located at the two ends of the arc region on the side wall, and after the hinge tool is assembled on the vehicle body, the four profiled positioning blocks 43 and the front side wall contour X position and the middle side wall contour Y position are aligned, and precise fitting is achieved. The hinge tool is designed as an integrated tool, which can ensure the Y-direction opening of the left and right hinges, and is easy to operate. The vehicle body pressing head 44 and the hinge pressing head 45 both have height adjusting devices.

[0089] Referring to Figures 1-9 , the S1 step specifically includes:

[0090] S101: Place the first end of the left and right hinges 1 on the corresponding hinge mounting area of the vehicle body 2, and screw at least two diagonally located vehicle body connecting bolts 21 into the vehicle body connecting bolt mounting hole 11;

[0091] S102: Align the profiled positioning blocks 43 of the hinge tool 4 at the edge of the side wall of the vehicle body 2, clamp the vehicle body pressing head clamping part on the vehicle body 2, clamp the hinge pressing head clamping part on the hinge 1, and insert the hinge pressing head positioning pin 451 into the trunk lid connecting bolt mounting hole 12;

[0092] S103: Tighten the vehicle body connecting bolts 21 that have been screwed in, remove the vehicle body pressing head clamping part and the hinge pressing head clamping part, and move away the hinge tool 4.

[0093] First, the hinge 1 first end pre-tighten in the body, only spin into the diagonal two bolts but not tighten, in this embodiment, the body connecting bolt 21 has four, spin into the body connecting bolt 21 located in the upper left and the lower right, at this time, the hinge 1 has a certain activity margin, the profiling positioning block 43 aligns the middle and front of the body 2 side wall, and then clamps the body pressure head 44 and the hinge pressure head 45, at this time, the hinge pressure head positioning pin 451 is inserted into the trunk lid connecting bolt mounting hole 12 in the second end of the hinge, to ensure that the trunk lid connecting bolt mounting hole 12 in the second end of the hinge reaches the connection position with the trunk lid. Then tighten the body connecting bolt 21 located in the upper left and the lower right, realize the fixation of the hinge position, and finally remove the hinge tool.

[0094] Referring to Figure 1 、 2 , 6, 10, 11, the S2 step specifically includes:

[0095] S201: install the rear cushion block 5 to the body 2, install the trunk lid on the upper part of the rear cushion block 5 and the second end of the hinge 1, and tighten the trunk lid connecting bolt 31. The rear cushion block 5 supports the lower part of the trunk lid 3.

[0096] S202: when the trunk lid 3 is connected with the hinge 1, first tighten the process positioning bolt 33 in the process bolt mounting hole 14, then tighten the trunk lid connecting bolt 31 in the trunk lid connecting bolt mounting hole 12 away from the first end of the hinge and the trunk lid connecting bolt mounting hole 12 close to the first end of the hinge in turn, and finally remove the process positioning bolt 33.

[0097] Referring to Figure 10 、 11 , the lower end of the rear cushion block 5 is provided with a first cushion block positioning pin 51 and a second cushion block positioning pin 52, the front end is provided with a threaded handle 53, and the upper end is provided with a trunk lid supporting surface 54 which supports the lower end of the trunk lid 3.

[0098] The rear cushion block 5 is installed on the body 2 through the first cushion block positioning pin 51 and the second cushion block positioning pin 52, and supports the lower end of the trunk lid 3 through the trunk lid supporting surface 54. The threaded handle 53 facilitates workers to assemble and take.

[0099] Referring to Figures 1-5 , the S3 step specifically includes:

[0100] S301: loosen the body connecting bolt 21 which has been tightened, adjust the trunk lid in the X direction, and then tighten the body connecting bolt 21 after adjustment is completed;

[0101] S302: Loosen the angle connecting bolt 13, change the angle between the first end of the hinge 1 and the second end of the hinge 1, so as to realize the Z-direction adjustment of the luggage cover, and then tighten the angle adjusting bolt 13 after adjustment;

[0102] S303: Loosen the tightened body connecting bolt 21, adjust the Y-direction of the luggage cover according to the measured gap between the luggage cover and the left and right side walls, and then screw in the remaining body connecting bolt 21 and tighten all the body connecting bolts 21.

[0103] The two bolts loosened and tightened in S301 are the two body connecting bolts 21 located at the upper left and the lower right tightened in S103. In S303, the body connecting bolts 21 located at the upper left and the lower right are loosened first, and then the body connecting bolts 21 located at the lower left and the upper right are screwed into the corresponding body connecting bolt mounting holes 11 after Y-direction adjustment. Finally, all the four body connecting bolts 21 are tightened.

[0104] In S301-S303, the X-direction, Z-direction and Y-direction adjustment reference positions and reference values need to be set in advance, and the adjustment is made according to the reference values;

[0105] In S302, the gap between the luggage cover and the left and right side walls of the body is measured by using the gap gauge, and the left and right differences of the luggage cover are confirmed, and then the Y-direction adjustment of the luggage cover is made.

[0106] Referring to Figure 7 S4, specifically comprising:

[0107] S401: Install the sealing strip and the electric supporting rod at the inner edge of the body 2;

[0108] S402: Adjust the Y-direction of the lock hook 32 installed at the middle of the rear end of the luggage cover 3, so as to ensure the proper left and right gap of the luggage cover 3;

[0109] S403: Rotate the four rubber plugs at the four corners of the inner side of the luggage cover 3, and adjust the surface difference of the four corners of the luggage cover 3.

[0110] According to the operation requirements, the luggage accessories are installed, mainly including the installation of the sealing strip, the installation of the electric supporting rod, the Y-direction adjustment of the lock hook located at the middle of the rear end of the luggage cover, and the centering of the left and right gaps of the luggage cover. The Y-direction adjustment in S303 is coarse adjustment, and the Y-direction adjustment in S402 is further fine adjustment. By rotating the four rubber plugs installed at the four corners of the inner side of the luggage cover 3, the surface difference of the four corners of the rear cover is ensured.

[0111] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hinge (1) for connecting a vehicle body (2) and a trunk lid (3), characterized in that, a vehicle body connecting bolt mounting hole (11) and an angle adjusting device are arranged at a first end of the hinge (1), the first end of the hinge (1) is installed on the vehicle body (2) through the vehicle body connecting bolt mounting hole (11) and a vehicle body connecting bolt (21), and the first end of the hinge (1) changes an angle with a second end of the hinge (1) through the angle adjusting device; a trunk lid connecting bolt mounting hole (12) is arranged at the second end of the hinge (1), and the second end of the hinge (1) is installed on the trunk lid (3) through the trunk lid connecting bolt mounting hole (12) and a trunk lid connecting bolt (31). 2.The hinge (1) according to claim 1, characterized in that, the trunk lid connecting bolt mounting hole (12) is at least provided with two, each having a via hole allowance, and a process bolt mounting hole (14) is further arranged on the second end of the hinge (1), and the process bolt mounting hole (14) is arranged between the two adjacent trunk lid connecting bolt mounting holes (12). 3.The hinge (1) according to claim 1, characterized in that, the angle adjusting device is an angle connecting bolt (13) ; the first end of the hinge (1) is detachably connected with a middle part of a hinge connecting piece (15) through the angle connecting bolt (13), and the vehicle body connecting bolt mounting hole (11) is arranged at four corners of the hinge connecting piece (15).

4. A luggage cover fitting method characterized by, The hinge (1) according to any one of claims 1-3 is completed, and the method comprises the following steps: S1: installing the first end of the hinge (1) on the vehicle body (2), screwing in part of the vehicle body connecting bolt (21), installing a hinge tool (4) on the vehicle body (2), fixing the hinge (1) to the hinge tool (4), then tightening the vehicle body connecting bolt (21) that has been screwed in, and removing the hinge tool (4) ; S2: installing the trunk lid (3) on the second end of the hinge (1), and screwing in the trunk lid connecting bolt (31) ; S3: adjusting the trunk lid (3) in X direction, Z direction and Y direction in sequence; S4: installing trunk accessories and a lock hook (32), adjusting the lock hook (32) in Y direction according to the gap between the trunk lid (3) and the left and right side walls of the vehicle body (2) measured, and adjusting the face difference of the four corners of the trunk lid (3) ; wherein the trunk accessories include an electric supporting rod; S5: detecting whether the X direction deformation of the electric supporting rod in the trunk lid (3) meets the requirements of the whole vehicle, if not, loosening the trunk lid connecting bolt (31), and adjusting the trunk lid (3) in X direction. 5.The trunk lid installation and adjustment method according to claim 4, characterized in that, the hinge tool (4) comprises: a first supporting rod (41), and second supporting rods (42) are arranged at the left and right ends of the first supporting rod (41). A plurality of profile positioning blocks (43) are provided, and the profile positioning blocks (43) are arranged at the front and rear ends of the second support rod (42), respectively. At least two profile positioning blocks (43) are arranged at the left and right sides of the front side wall of the vehicle body (2), respectively, and at least two profile positioning blocks (43) are arranged at the left and right sides of the middle side wall of the vehicle body (2), respectively; A vehicle body pressing head (44) is arranged at the lower end of the first support rod (41), and the lower end of the vehicle body pressing head (44) is clamped on the vehicle body (2) through a vehicle body pressing head clamping part; A hinge pressing head (45) is arranged at the lower end of the first support rod (41), and the lower end of the hinge pressing head (45) is provided with a hinge pressing head clamping part, and the hinge pressing head clamping part is provided with a hinge pressing head positioning pin (451). The lower end of the hinge pressing head (45) is clamped on the hinge (1) through the hinge pressing head clamping part, and the hinge pressing head positioning pin (451) is inserted into the luggage compartment cover connecting bolt mounting hole (12).

6. The luggage compartment cover assembly method according to claim 5, wherein the S1 step specifically comprises: S101: placing the first ends of the left and right hinges (1) on the corresponding hinge mounting areas of the vehicle body (2), and rotating at least two diagonally arranged vehicle body connecting bolts (21) into the vehicle body connecting bolt mounting holes (11); S102: aligning the profile positioning blocks (43) of the hinge assembly (4) at the edges of the side walls of the vehicle body (2), clamping the vehicle body pressing head clamping part on the vehicle body (2), clamping the hinge pressing head clamping part on the hinge (1), and inserting the hinge pressing head positioning pin (451) into the luggage compartment cover connecting bolt mounting hole (12); S103: tightening the vehicle body connecting bolts (21) that have been rotated, removing the vehicle body pressing head clamping part and the hinge pressing head clamping part, and moving away the hinge assembly (4).

7. The luggage compartment cover assembly method according to claim 4, wherein the S2 step specifically comprises: S201: mounting the rear cushion block (5) on the vehicle body (2), and mounting the lower part of the luggage compartment cover (3) on the upper part of the rear cushion block (5); S202: after aligning the luggage compartment cover (3) and the second end of the hinge (1), first, tightening the process positioning bolt (33) in the process bolt mounting hole (14), then, tightening the luggage compartment cover connecting bolts (31) in the luggage compartment cover connecting bolt mounting holes (12) away from the first end of the hinge (1) and the luggage compartment cover connecting bolt mounting holes (12) close to the first end of the hinge (1), respectively, and finally, removing the process positioning bolt (33).

8. The luggage compartment cover assembly method according to claim 7, wherein the lower end of the rear cushion block (5) is mounted on the vehicle body (2) through the first cushion block positioning pin (51) and the second cushion block positioning pin (52), and the upper end is provided with a luggage compartment cover supporting surface (54) which supports the lower end of the luggage compartment cover (3).

9. The luggage compartment cover assembly method according to claim 4, wherein ​ ​ ​ The S3 step specifically comprises: S301: Loosen the tightened body connection bolt (21), adjust the trunk lid in X direction, and tighten the body connection bolt (21) after adjustment; S302: Loosen the angle connection bolt (13), change the angle between the first end of the hinge (1) and the second end of the hinge (1), thereby realizing the Z direction adjustment of the trunk lid, and tighten the angle adjustment bolt (13) after adjustment; S303: Loosen the tightened body connection bolt (21), adjust the trunk lid in Y direction according to the measured gap between the trunk lid and the left and right side walls, and tighten all the body connection bolts (21) after adjustment.

10. The trunk lid adjustment method according to claim 4, characterized in that, The S4 step specifically comprises: S401: Install the sealing strip and the electric supporting rod at the inner edge of the body (2); S402: Adjust the Y direction of the lock hook (32) installed in the middle of the rear end of the trunk lid (3), and ensure that the left and right gaps of the trunk lid (3) are appropriate; S403: Rotate the four rubber plugs at the four corners of the inner side of the trunk lid (3), and adjust the surface difference of the four corners of the trunk lid (3).