A car rear spoiler with an adjustable mounting height

Abstract

This invention provides a car rear wing with an adjustable mounting height structure, relating to the field of car rear wings. The rear wing includes a spoiler, a height adjustment structure, a mounting bracket, and fastening bolts. The spoiler is disposed on the upper side of the mounting bracket, and the height adjustment structure is assembled between the mounting bracket and the spoiler. A first through hole is formed on the spoiler, and a first threaded sleeve is fixedly connected to the first through hole. The height adjustment structure includes a height pad and a second threaded sleeve. The height pad has a second through hole, and the second threaded sleeve is rotatably mounted at the second through hole. The second threaded sleeve has a retaining edge that cooperates with the height pad, and an anti-rotation part is provided inside the second threaded sleeve. The second threaded sleeve and the first threaded sleeve are threadedly engaged. A third through hole is formed on the mounting bracket corresponding to the second through hole. The fastening bolts are disposed through the third through hole, the second threaded sleeve, and the first threaded sleeve, and are press-fitted with the mounting bracket, the height pad, and the spoiler.

Description

Technical Field

[0001] This invention relates to the field of automotive rear wing technology, and in particular to an automotive rear wing with an adjustable mounting height structure. Background Technology

[0002] A car spoiler, also known as a "rear wing," is typically mounted on the trunk lid to improve vehicle stability. The assembly process for an electric spoiler involves first attaching the base and linkage mechanism to the trunk lid, then mounting the spoiler onto the linkage mechanism's bracket, adjusting the spoiler's position on the bracket, and finally securing it in place.

[0003] For example, Chinese utility model patent CN216833948U, with an authorization announcement date of June 28, 2022, discloses a structure for quickly installing an electric rear spoiler in a car trunk. Specifically, it discloses that the electric spoiler lifting mechanism assembly is detachably connected to the trunk outer panel assembly via multiple connecting bolts and limiting bolts at corresponding positions. A four-bar hinge with a mounting plate is installed in conjunction with the electric spoiler lifting mechanism assembly. The electric spoiler panel assembly is mounted on the mounting plate, which has one or more square holes. Bolt holes are provided on the electric spoiler panel assembly at corresponding positions. The connecting bolts pass through the square holes to pre-assemble the electric spoiler panel assembly onto the mounting plate. By moving the bolts up or down, left or right within the square holes, the positional clearance of the electric spoiler panel assembly in the X and Y directions of the car body can be adjusted.

[0004] In the existing technology, the mounting plate has square holes, the electric tail wing panel assembly has bolt holes, the connecting bolts pass through the square holes, and the connecting bolts and square holes are clearance-fitted. However, the electric tail wing panel assembly is fixed by locking with nuts after being adjusted to the correct position.

[0005] Therefore, the movement of the connecting bolts within the square holes is limited to the X and Y directions of the vehicle body, and cannot change the distance between the rear spoiler panel and the trunk lid. It is also impossible to flexibly and accurately adjust the position of the rear spoiler panel in the Z direction of the vehicle body, making it difficult to meet the process requirements for efficient and rapid installation of the rear spoiler. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a car rear wing with an adjustable mounting height structure, thereby solving the problems of existing solutions that cannot change the distance between the rear wing panel and the car trunk lid, cannot flexibly and accurately adjust the position of the rear wing panel in the Z-direction of the vehicle body, and are difficult to meet the process requirements of efficient and rapid installation of the rear wing.

[0007] The technical solution of the automobile rear wing with an adjustable mounting height structure of the present invention is as follows:

[0008] A car rear wing with a height adjustment structure includes a spoiler, a height adjustment structure, a mounting bracket, and fastening bolts. The spoiler is disposed on the upper side of the mounting bracket, and the height adjustment structure is assembled and connected between the mounting bracket and the spoiler.

[0009] The spoiler has a first through hole, and a first threaded sleeve is fixedly connected to the first through hole; the height adjustment structure includes a height pad and a second threaded sleeve, the height pad has a second through hole, and the second threaded sleeve is rotatably installed at the second through hole;

[0010] The second threaded sleeve is provided with a retaining edge that cooperates with the height pad, and the interior of the second threaded sleeve is provided with an anti-rotation part, which is used to cooperate with the screwing tool to prevent rotation. The second threaded sleeve is threadedly engaged with the first threaded sleeve.

[0011] The mounting bracket has a third through hole at the position corresponding to the second through hole. The fastening bolt is disposed through the third through hole, the second threaded sleeve and the first threaded sleeve, and the fastening bolt is pressed and engaged with the mounting bracket, the height pad and the spoiler.

[0012] Furthermore, the spoiler includes an inner plate, the first through hole is formed on the inner plate, and the first threaded sleeve is pre-embedded and fixed on the inner plate.

[0013] Furthermore, the inner side of the inner plate is provided with an annular boss corresponding to the first through hole. The annular boss is integrally formed with the inner plate, and the first threaded sleeve is embedded inside the annular boss.

[0014] Furthermore, the first threaded sleeve includes a large sleeve section and a small sleeve section fixedly connected. The inner wall of the large sleeve section is provided with a large-diameter internal thread, and the outer wall of the second threaded sleeve is provided with an external thread. The external thread of the second threaded sleeve matches the large-diameter internal thread of the large sleeve section.

[0015] The small sleeve section is located above the large sleeve section. The inner wall of the small sleeve section is provided with a small-diameter internal thread, and the external thread of the fastening bolt matches the small-diameter internal thread of the small sleeve section.

[0016] Furthermore, the retaining edge is an annular retaining edge, which is disposed on the lower outer side of the second threaded sleeve. The lower side of the height pad is also provided with a groove corresponding to the second through hole, and the annular retaining edge and the groove are in concave-convex fit.

[0017] Furthermore, the interior of the second threaded sleeve is provided with a hexagonal inner hole corresponding to the retaining edge. The inner contour of the hexagonal inner hole is larger than the inner hole of the second threaded sleeve, and the hexagonal inner hole constitutes the anti-rotation part.

[0018] Furthermore, a hook protrudes from the lower side of the height pad, and correspondingly, a slot is provided on the mounting bracket, in which the hook is hooked and installed.

[0019] Furthermore, a rubber pad is provided on the upper side of the height pad, and a gasket is provided on the lower side of the mounting bracket corresponding to the third through hole, the gasket being in a stop-fitting cooperation with the mounting bracket.

[0020] Furthermore, the first threaded sleeve includes a sleeve portion and a flange portion that are fixedly connected. The flange portion is fixedly connected to the annular boss, and an annular gap is provided between the sleeve portion and the inner wall of the annular boss.

[0021] The outer wall of the sleeve portion is provided with external threads, and the inner wall of the second threaded sleeve is provided with internal threads. The internal threads of the second threaded sleeve match the external threads of the sleeve portion. The inner wall of the sleeve portion is also provided with internal threads, and the external threads of the fastening bolt match the internal threads of the sleeve portion.

[0022] Furthermore, the first threaded sleeve includes a separate upper sleeve body and a lower sleeve body, both of which are embedded in the annular boss, and the inner walls of the upper sleeve body and the lower sleeve body are respectively provided with internal threads;

[0023] The outer wall of the second threaded sleeve is provided with an external thread, and the external thread of the second threaded sleeve matches the internal thread of the lower sleeve; the external thread of the fastening bolt matches the internal thread of the upper sleeve.

[0024] Beneficial effects: This car rear wing with an adjustable mounting height incorporates a spoiler, a height adjustment structure, a mounting bracket, and fastening bolts. The spoiler is positioned on the upper side of the mounting bracket, and a height adjustment structure is installed between the mounting bracket and the spoiler. This structure allows the spoiler's height position on the mounting bracket to be changed. Specifically, a first threaded sleeve is fixed to the first through-hole of the spoiler, and a second threaded sleeve is rotatably mounted to the second through-hole of the height adjustment plate. The second threaded sleeve is threadedly engaged with the first threaded sleeve, and tightening the second threaded sleeve pre-connects the height adjustment structure to the spoiler.

[0025] Next, the height adjustment structure, along with the spoiler, is assembled onto the mounting bracket. The second through hole of the height adjustment pad corresponds to the third through hole of the mounting bracket, ensuring the height of the height adjustment pad relative to the mounting bracket remains constant after installation. Then, a screwdriver is used to tighten the anti-rotation part of the second threaded sleeve through the third through hole. The second threaded sleeve rotates, causing the first threaded sleeve to move up and down. Through the cooperation of the two threaded sleeves, the tightening angle is precisely converted into the height displacement of the first threaded sleeve and the spoiler. This not only changes the distance between the spoiler and the car's trunk lid but also allows for flexible and accurate adjustment of the spoiler's Z-axis position on the vehicle body, thus meeting the requirements for efficient and rapid installation of the rear wing.

[0026] In addition, after the height of the spoiler is adjusted to the correct position, fastening bolts are inserted between the third through hole, the second threaded sleeve and the first threaded sleeve. The fastening bolts are used to press and fix the mounting bracket, the height pad and the spoiler. The fastening bolts generate a preload on the two threaded sleeves to ensure that the threaded connection will not loosen and the fixation is more stable and reliable. Attached Figure Description

[0027] Figure 1 This is a partial perspective view of the car rear wing in a specific embodiment 1 of the present invention, which has an adjustable mounting height structure.

[0028] Figure 2 for Figure 1 Assembly diagram of the height adjustment structure and mounting bracket;

[0029] Figure 3 This is a cross-sectional schematic diagram of the car rear wing in a specific embodiment 1 of the present invention, which has an adjustable mounting height structure.

[0030] Figure 4 This is a cross-sectional schematic diagram of the car rear wing in a specific embodiment 2 of the present invention, which has an adjustable mounting height structure.

[0031] Figure 5 This is a cross-sectional schematic diagram of the car rear wing in a specific embodiment 3 of the present invention, which has an adjustable mounting height structure.

[0032] Figures 1 to 3 In the middle: 1-spoiler, 10-inner plate, 11-first threaded sleeve, 110-small diameter internal thread, 111-large sleeve section, 112-small sleeve section, 12-annular boss;

[0033] 2 - Height adjustment structure, 20 - Height pad, 21 - Second threaded sleeve, 22 - Stop edge, 23 - Anti-rotation part, 24 - Hook;

[0034] 3 - Mounting bracket, 30 - Third through hole, 4 - Fastening bolt, 41 - Washer;

[0035] Figure 4 In the middle: 10 - inner plate, 11a - first threaded sleeve, 111a - sleeve part, 112a - raised edge part, 12a - annular boss, 20 - height pad, 21a - second threaded sleeve, 3 - mounting bracket, 30 - third through hole, 4 - fastening bolt;

[0036] Figure 5 In the middle: 10 - inner plate, 11b - first threaded sleeve, 111b - lower sleeve body, 112b - upper sleeve body, 12b - annular boss, 21b - second threaded sleeve, 3 - mounting bracket, 30 - third through hole, 4 - fastening bolt. Detailed Implementation

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0038] A specific embodiment 1 of the present invention, featuring a car rear spoiler with an adjustable mounting height structure, is as follows: Figures 1 to 3 As shown, the car rear wing with a height adjustment structure includes a spoiler 1, a height adjustment structure 2, a mounting bracket 3, and fastening bolts 4. The spoiler 1 is disposed on the upper side of the mounting bracket 3, and the height adjustment structure 2 is assembled and connected between the mounting bracket 3 and the spoiler 1. The spoiler 1 has a first through hole, and a first threaded sleeve 11 is fixedly connected to the first through hole. The height adjustment structure 2 includes a height pad 20 and a second threaded sleeve 21. The height pad 20 has a second through hole, and the second threaded sleeve 21 is rotatably installed at the second through hole.

[0039] The second threaded sleeve 21 is provided with a retaining edge 22 that cooperates with the height pad 20, and the interior of the second threaded sleeve 21 is provided with an anti-rotation part 23, which is used to cooperate with the screwing tool to prevent rotation. The second threaded sleeve 21 is threadedly engaged with the first threaded sleeve 11. The mounting bracket 3 is provided with a third through hole 30 at the position corresponding to the second through hole. The fastening bolt 4 is provided through the third through hole 30, the second threaded sleeve 21 and the first threaded sleeve 11, and the fastening bolt 4 is pressed and engaged with the mounting bracket 3, the height pad 20 and the spoiler 1.

[0040] This car rear wing with an adjustable mounting height uses a spoiler 1, a height adjustment structure 2, a mounting bracket 3, and fastening bolts 4. The spoiler 1 is positioned on the upper side of the mounting bracket 3, and the height adjustment structure 2 is installed between the mounting bracket 3 and the spoiler 1. The height adjustment structure 2 changes the height position of the spoiler 1 on the mounting bracket 3. A first threaded sleeve 11 is fixed to the first through hole of the spoiler 1, and a second threaded sleeve 21 is rotatably installed at the second through hole of the height shim 20. The second threaded sleeve 21 is threadedly engaged with the first threaded sleeve 11. Tightening the second threaded sleeve 21 pre-connects the height adjustment structure 2 and the spoiler 1.

[0041] Then, the height adjustment structure 2, together with the spoiler 1, is assembled onto the mounting bracket 3. The second through hole of the height pad 20 corresponds to the third through hole 30 of the mounting bracket 3. After installation, the height of the height pad 20 relative to the mounting bracket 3 remains unchanged. At this time, a screwdriver is used to screw the anti-rotation part 23 of the second threaded sleeve 21 through the third through hole 30. The second threaded sleeve 21 rotates, causing the first threaded sleeve 11 to move up and down accordingly. Through the cooperation of the two threaded sleeves, the screwing angle is precisely converted into the height displacement of the first threaded sleeve 11 and the spoiler 1. This not only changes the distance between the spoiler 1 and the car trunk lid, but also allows for flexible and accurate adjustment of the spoiler 1's position in the Z-axis of the vehicle body, thereby meeting the process requirements for efficient and rapid installation of the rear wing.

[0042] In addition, after the height of the spoiler 1 is adjusted to the correct position, a fastening bolt 4 is inserted between the third through hole 30, the second threaded sleeve 21 and the first threaded sleeve 11. The fastening bolt 4 is used to press and fix the mounting bracket 3, the height pad 20 and the spoiler 1. The fastening bolt 4 generates a pre-tightening force on the two threaded sleeves to ensure that the threaded connection will not loosen and the fixation is more stable and reliable.

[0043] In this embodiment, the spoiler 1 includes an inner plate 10, a first through hole is formed on the inner plate 10, and a first threaded sleeve 11 is pre-embedded and fixed in the inner plate 10. Specifically, the inner plate 10 of the spoiler 1 is manufactured by injection molding, during which the first threaded sleeve 11 is pre-embedded in the position corresponding to the first through hole. An annular boss 12 is provided on the inner side of the inner plate 10 corresponding to the first through hole. The annular boss 12 is integrally formed with the inner plate 10, and the first threaded sleeve 11 is fixed inside the annular boss 12. By surrounding and fixing the first threaded sleeve 11 to the outside of the annular boss 12, the connection strength between the first threaded sleeve 11 and the inner plate 10 is enhanced, ensuring that the inner plate 10 can be reliably supported by the first threaded sleeve 11.

[0044] As a further preferred embodiment, the first threaded sleeve 11 includes a large sleeve section 111 and a small sleeve section 112 fixedly connected. The inner wall of the large sleeve section 111 is provided with a large-diameter internal thread, and the outer wall of the second threaded sleeve 21 is provided with an external thread. The external thread of the second threaded sleeve 21 matches the large-diameter internal thread of the large sleeve section 111. The small sleeve section 112 is located above the large sleeve section 111, and the inner wall of the small sleeve section 112 is provided with a small-diameter internal thread 110. The external thread of the fastening bolt 4 matches the small-diameter internal thread 110 of the small sleeve section 112.

[0045] like Figure 2 , Figure 3 As shown, the large sleeve section 111 and the small sleeve section 112 of the first threaded sleeve 11 are arranged vertically along the axis of the first through hole. The outer contour of the large sleeve section 111 is cylindrical, and the outer contour of the small sleeve section 112 is hexagonal prism. The portion between the large sleeve section 111 and the small sleeve section 112 is a hexagonal flange. Through the hexagonal prism shape of the small sleeve section 112 and the hexagonal flange in the middle respectively engaging with the annular boss 12, the first threaded sleeve 11 and the inner plate 10 of the spoiler 1 are effectively embedded and fixedly connected, preventing the first threaded sleeve 11 from rotating or moving vertically within the annular boss 12.

[0046] In this embodiment, the retaining edge 22 is an annular retaining edge, which is disposed on the lower outer side of the second threaded sleeve 21. The lower side of the height pad 20 is also provided with a groove corresponding to the second through hole, and the annular retaining edge and the groove are in concave-convex fit. Through the design of the annular retaining edge and the groove on the height pad 20, the second threaded sleeve 21 can rotate freely in the second through hole, and during the spiral movement of the second threaded sleeve 21, the vertical distance between the inner plate 10 of the spoiler 1 and the height pad 20 can be adjusted, thereby accurately adjusting the installation height of the spoiler 1.

[0047] Specifically, the inner edge 22 of the second threaded sleeve 21 is provided with a hexagonal inner hole, which forms an anti-rotation part 23. The inner contour of the hexagonal inner hole is larger than the inner hole of the second threaded sleeve 21 to avoid the hexagonal inner hole being too small and affecting the through assembly of the fastening bolt 4. During installation, the height adjustment structure 2 is first pre-installed on the spoiler 1. An Allen wrench is inserted into the hexagonal inner hole of the second threaded sleeve 21, and the second threaded sleeve 21 is rotated to form a pre-connection with the first threaded sleeve 11. Then, the height adjustment structure 2 together with the spoiler 1 is installed on the mounting bracket 3. By turning the second threaded sleeve 21, the first threaded sleeve 11 is moved up and down, which can precisely adjust the position of the spoiler 1 in the Z direction of the vehicle body.

[0048] In addition, a hook 24 protrudes from the lower side of the height adjustment plate 20. Correspondingly, the mounting bracket 3 has a slot, and the hook 24 is hooked into the slot of the mounting bracket 3. After the height adjustment structure 2 and the spoiler 1 are pre-connected, the hook 24 of the height adjustment plate 20 is hooked into the slot of the mounting bracket 3, so that the height adjustment structure 2 is Z-direction limited relative to the mounting bracket 3, ensuring that the height adjustment structure 2 does not move in the Z direction of the vehicle body, thereby accurately adjusting the height and attitude of the spoiler 1.

[0049] A rubber pad 25 is also provided on the upper side of the height plate 20. The rubber pad 25 can play a role in shock absorption and cushioning, and can adapt to the height change of the spoiler 1 through the elastic deformation of the rubber pad 25. In addition, a gasket 41 is provided on the lower side of the mounting bracket 3 corresponding to the third through hole 30. The gasket 41 is in a stop fit with the mounting bracket 3.

[0050] A specific embodiment 2 of the present invention, featuring a car rear wing with an adjustable mounting height, has an overall structure that is basically the same as that of the car rear wing in specific embodiment 1, the difference being that the structure of the first threaded sleeve can be adaptively adjusted. For example... Figure 4 As shown, the first threaded sleeve 11a includes a sleeve portion 111a and a raised edge portion 112a that are fixedly connected. The raised edge portion 112a is fixedly connected to the annular boss 12a, and an annular gap is provided between the inner wall of the sleeve portion 111a and the annular boss 12a.

[0051] The sleeve portion 111a has an external thread on its outer wall, and the second threaded sleeve 21a has an internal thread on its inner wall. The internal thread of the second threaded sleeve 21a matches the external thread of the sleeve portion 111a. The inner wall of the sleeve portion 111a also has an internal thread, and the external thread of the fastening bolt 4 matches the internal thread of the sleeve portion 111a. That is, the first threaded sleeve 11a itself integrates external and internal threads, and the structural design of the first threaded sleeve 11a is more compact. Since the height of the height pad 20 on the mounting bracket 3 remains unchanged, the second threaded sleeve 21a is screwed through the third through hole 30, which changes the vertical distance between the inner plate 10 and the height pad 20, thereby adjusting the position of the inner plate 10 of the spoiler in the Z-direction of the vehicle body.

[0052] In a specific embodiment 3 of the present invention, the car rear wing with an adjustable mounting height structure has an overall structure that is basically the same as that of the car rear wing in specific embodiment 1, the difference being that the structure of the first threaded sleeve can be adaptively adjusted. For example... Figure 5 As shown, the first threaded sleeve 11b includes an upper sleeve body 112b and a lower sleeve body 111b that are separately arranged. Both the upper sleeve body 112b and the lower sleeve body 111b are embedded inside the annular boss 12b. The inner walls of the upper sleeve body 112b and the lower sleeve body 111b are respectively provided with internal threads.

[0053] Correspondingly, the outer wall of the second threaded sleeve 21b is provided with an external thread, which matches the internal thread of the lower sleeve 111b. By screwing the second threaded sleeve 21b through the third through hole 30, the height position of the inner plate 10 of the spoiler on the mounting bracket 3 can be adjusted. The external thread of the fastening bolt 4 matches the internal thread of the upper sleeve 112b. Furthermore, the internal thread diameter of the lower sleeve 111b is larger than that of the upper sleeve 112b, ensuring that the second threaded sleeve 21b is screwed into the internal thread of the lower sleeve 111b without affecting the smooth penetration and fixation of the subsequent fastening bolt 4.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A car rear spoiler with an adjustable mounting height structure, characterized in that, It includes a spoiler, a height adjustment structure, a mounting bracket, and fastening bolts. The spoiler is disposed on the upper side of the mounting bracket, and the height adjustment structure is assembled and connected between the mounting bracket and the spoiler. The spoiler has a first through hole, and a first threaded sleeve is fixedly connected to the first through hole; the height adjustment structure includes a height pad and a second threaded sleeve, the height pad has a second through hole, and the second threaded sleeve is rotatably installed at the second through hole; The second threaded sleeve is provided with a retaining edge that cooperates with the height pad, and the interior of the second threaded sleeve is provided with an anti-rotation part, which is used to cooperate with the screwing tool to prevent rotation. The second threaded sleeve is threadedly engaged with the first threaded sleeve. The mounting bracket has a third through hole at the position corresponding to the second through hole. The fastening bolt is disposed through the third through hole, the second threaded sleeve and the first threaded sleeve, and the fastening bolt is pressed and engaged with the mounting bracket, the height pad and the spoiler.

2. The car rear spoiler with an adjustable mounting height structure according to claim 1, characterized in that, The spoiler includes an inner plate, the first through hole is formed on the inner plate, and the first threaded sleeve is embedded in the inner plate.

3. The automobile rear spoiler with an adjustable mounting height structure according to claim 2, characterized in that, The inner plate has an annular boss on its inner side corresponding to the first through hole. The annular boss is integrally formed with the inner plate, and the first threaded sleeve is embedded inside the annular boss.

4. The automobile rear spoiler with an adjustable mounting height structure according to claim 3, characterized in that, The first threaded sleeve includes a large sleeve section and a small sleeve section fixedly connected. The inner wall of the large sleeve section is provided with a large-diameter internal thread, and the outer wall of the second threaded sleeve is provided with an external thread. The external thread of the second threaded sleeve matches the large-diameter internal thread of the large sleeve section. The small sleeve section is located above the large sleeve section. The inner wall of the small sleeve section is provided with a small-diameter internal thread, and the external thread of the fastening bolt matches the small-diameter internal thread of the small sleeve section.

5. The automobile rear spoiler with an adjustable mounting height structure according to any one of claims 1 to 4, characterized in that, The retaining edge is an annular retaining edge, which is disposed on the lower outer side of the second threaded sleeve. The lower side of the height pad is also provided with a groove corresponding to the second through hole, and the annular retaining edge and the groove are in concave-convex fit.

6. The automobile rear spoiler with an adjustable mounting height structure according to claim 5, characterized in that, The second threaded sleeve is further provided with a hexagonal inner hole corresponding to the retaining edge. The inner contour of the hexagonal inner hole is larger than the inner hole of the second threaded sleeve, and the hexagonal inner hole constitutes the anti-rotation part.

7. The automobile rear spoiler with an adjustable mounting height structure according to any one of claims 1 to 4, characterized in that, The lower side of the height pad is also provided with a protruding hook, and correspondingly, the mounting bracket is provided with a slot, and the hook is hooked and installed in the slot.

8. The automobile rear spoiler with an adjustable mounting height structure according to any one of claims 1 to 4, characterized in that, The upper side of the height pad is also provided with a rubber pad, and the lower side of the mounting bracket corresponding to the third through hole is also provided with a gasket, which is in a stop-fitting cooperation with the mounting bracket.

9. The automobile rear spoiler with an adjustable mounting height structure according to claim 3, characterized in that, The first threaded sleeve includes a sleeve portion and a flange portion that are fixedly connected. The flange portion is fixedly connected to the annular boss, and an annular gap is provided between the sleeve portion and the inner wall of the annular boss. The outer wall of the sleeve portion is provided with external threads, and the inner wall of the second threaded sleeve is provided with internal threads. The internal threads of the second threaded sleeve match the external threads of the sleeve portion. The inner wall of the sleeve portion is also provided with internal threads, and the external threads of the fastening bolt match the internal threads of the sleeve portion.

10. The automobile rear spoiler with an adjustable mounting height structure according to claim 3, characterized in that, The first threaded sleeve includes a separate upper sleeve body and a lower sleeve body, both of which are embedded in the annular boss. The inner walls of the upper sleeve body and the lower sleeve body are respectively provided with internal threads. The outer wall of the second threaded sleeve is provided with an external thread, and the external thread of the second threaded sleeve matches the internal thread of the lower sleeve; the external thread of the fastening bolt matches the internal thread of the upper sleeve.

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