Side spoiler with self-locking function

Abstract

The invention discloses a side spoiler with a self-locking function. The side spoiler comprises a side spoiler body, the mounting seat is fixedly connected with the heavy truck head; the rotating support is fixedly connected with the side spoiler and rotationally connected with the mounting base, and the rotating shaft is vertically arranged in the axial lead direction; the locking assembly is arranged between the mounting base and the rotating support and used for fixing the rotating support to two working positions, and in the first working position, the spoiler is adjacent to the container and plays a role in flow guiding; in the second working position, the spoiler is adjacent to the vehicle head, so that the personnel can conveniently enter the space between the vehicle head and the container; comprising an outer sleeve column fixedly connected with a mounting base and an inner reversing column connected with a rotating support, and a fixing assembly used for locking the inner reversing column at two working positions is arranged between the outer sleeve column and the inner reversing column. The side spoiler with the self-locking function is reasonable in structure, locking of the side spoiler at the two working positions is achieved through a mechanical structure, and the service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of spoilers, in particular to a side spoiler with a self-locking function. Background Art

[0002] As the speed of heavy trucks increases, the high fuel consumption caused by air resistance during the driving process of heavy trucks becomes more and more serious, which greatly affects the economic efficiency of heavy trucks. Therefore, the wind resistance of heavy trucks becomes more important, and reducing the wind resistance of the whole vehicle has become an important part of heavy truck design. In the prior art, as described in document CN211442520U applied for by the applicant in 2019, it includes a side deflector, which is connected to the vehicle body through a hinge, and a locking device is provided between the side deflector and the vehicle body; the locking device is a gas spring, one end of the gas spring is rotatably connected to the fixed section of the hinge or the vehicle body, and the other end of the gas spring is rotatably connected to the free section of the hinge or the side deflector.

[0003] The working position locking of the above-mentioned side spoilers is achieved by means of gas springs. However, in actual use, it is found that when the heavy truck is used in a harsh environment or travels on unpaved roads for a long time, the service life of the gas springs will be greatly shortened, affecting the normal use of the side spoilers.

[0004] Therefore, it is necessary to improve the side spoiler with self-locking function in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art and provide a side spoiler with a self-locking function, which can lock the side spoiler in two working positions through a mechanical structure to extend its service life.

[0006] To achieve the above technical effect, the technical solution of the present invention is: a side spoiler with a self-locking function, comprising: a side spoiler; a mounting seat, fixedly connected to the front of the heavy truck; a rotating bracket, fixedly connected to the side spoiler and rotatably connected to the mounting seat, and the axial centerline direction of the rotating shaft is vertically arranged; a locking assembly is arranged between the mounting seat and the rotating bracket, and is used to fix the rotating bracket in two working positions, the first working position: the spoiler is adjacent to the cargo box and plays a diversion role; the second working position: the spoiler is adjacent to the front of the vehicle, which is convenient for people to enter the space between the front of the vehicle and the cargo box; comprising: an outer sleeve column fixedly connected to the mounting seat, an inner reversing column connected to the rotating bracket, and a fixing assembly for locking the inner reversing column in two working positions is arranged between the outer sleeve column and the inner reversing column.

[0007] According to one embodiment of the present invention, the outer sleeve column includes a mounting end and a limiting end arranged back to back, the limiting end of the outer sleeve column is provided with a limiting groove, the groove depth direction of the limiting groove is parallel to the axial direction of the outer sleeve column; the inner reversing column is provided with a limiting protrusion that cooperates with the limiting groove.

[0008] According to one embodiment of the present invention, at least two limiting grooves are arranged along the circumference of the outer sleeve, and the two limiting grooves are arranged corresponding to the two working positions.

[0009] According to one embodiment of the present invention, the side wall of the limiting groove is provided with an inclined surface to facilitate the rotation of the limiting protrusion.

[0010] According to one embodiment of the present invention, the outer sleeve column is provided with two upper and lower ones, the inner reversing column is provided corresponding to the outer sleeve column, and the fixing assembly is used to limit the limiting protrusion in the limiting groove.

[0011] According to one embodiment of the present invention, the fixing assembly includes a fixing bolt and a fixing nut threadedly connected to the fixing bolt, and the upper and lower outer sleeve columns are clamped between the ends of the fixing bolt and the fixing nut; the fixing assembly also includes an elastic member for mounting the inner reversing column on the top of the outer sleeve column.

[0012] According to an embodiment of the present invention, the elastic member includes a compression spring, the compression spring is sleeved outside the fixing bolt, and two ends of the compression spring are respectively disposed to abut against the two inner reversing posts.

[0013] According to one embodiment of the present invention, a mounting protrusion and a mounting groove that are matched with each other in limiting position are provided between the mounting seat and the mounting end of the outer sleeve column.

[0014] According to one embodiment of the present invention, a sliding protrusion and a sliding groove that are matched with each other in a limiting position are arranged between the rotating bracket and the inner reversing column, the sliding protrusion is slidably connected to the sliding groove, and the sliding direction of the sliding protrusion is vertically arranged.

[0015] According to one embodiment of the present invention, the mounting seat is provided with a sealing assembly, the sealing assembly includes a sealing cover plate, a sealing groove is provided on the circumferential side wall of the mounting seat, and the sealing cover plate is provided with a sealing protrusion that seals and limits the sealing groove.

[0016] According to one embodiment of the present invention, the mounting seat is provided with an assembly hole, and the sealing cover plate is provided with a lifting block elastically matched with the assembly hole.

[0017] According to one embodiment of the present invention, a sealing ring is provided between the mounting seat and the rotating bracket.

[0018] According to one embodiment of the present invention, the side spoiler is fixedly provided with a reinforcing platform connected to the rotating bracket.

[0019] According to one embodiment of the present invention, the rotating bracket is fixedly provided with a plurality of reinforcing ribs.

[0020] The advantages and beneficial effects of the present invention are as follows: the side spoiler with a self-locking function of the present invention has a reasonable structure, and a mounting seat and a rotating bracket are provided, the mounting seat is connected to the front of a heavy truck, the rotating bracket is connected to the side spoiler, and the rotating bracket and the mounting seat are matched by an outer sleeve column, an inner reversing column and a fixing assembly to achieve the rotating bracket being limited and fixed in two working positions; compared with the prior art, the use of a gas spring is avoided, and the service life of the side spoiler is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a schematic structural diagram of an embodiment of a side spoiler with a self-locking function according to the present invention; Figure 2 It is a structural schematic diagram of the rotating bracket in the first working position; Figure 3 yes Figure 2 Explosion diagram of Figure 4 is a schematic diagram of the structure of the locking assembly; Figure 5 yes Figure 4 Explosion diagram of Figure 6 yes Figure 4 A cross-sectional view of Figure 7 yes Figure 5 A cross-sectional view of Figure 8 It is a schematic diagram of the structure of the outer jacket column; Fig. 9 It is a schematic diagram of the structure of the inner reversing column; Fig.10 It is a structural diagram of the mounting base; Fig.11 is a schematic diagram of the structure of the rotating bracket; Fig.12 1 is a schematic diagram of the structure of the sealing cover plate; Fig.13 is a state diagram of step S1; Fig.14 is a state diagram of step S2; Fig.15 is a state diagram of step S3; Fig.16 is a state diagram of step S4; Fig.17 is a state diagram of step S5; Fig.18 is a structural schematic diagram of the rotating bracket in the second working position; Fig.19 is a schematic diagram of the outer sleeve column structure of Example 3; Fig. 20 is a schematic structural diagram of an inner reversing column of Example 3; Fig.21 is a schematic structural diagram of a fixing assembly in a first working position of Embodiment 3; Fig. 22 is a schematic structural diagram of a fixing assembly in a second working position of Embodiment 3; In the figure: 1. side spoiler; 11. reinforcement platform; 2. mounting seat; 21. mounting groove; 22. sealing groove; 23. assembly hole; 3. rotating bracket; 31. sliding groove; 32. reinforcing rib; 4. outer sleeve column; 41. mounting end; 42. limiting end; 43. limiting groove; 431. inclined surface; 44. mounting protrusion; 5. inner reversing column; 51. limiting protrusion; 52. sliding protrusion; 61. fixing bolt; 62. fixing nut; 7. compression spring; 8. sealing cover plate; 81. sealing protrusion; 82. lift block; 9. sealing ring. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] Example 1

[0025] like Figure 1-18As shown, the side spoiler with a self-locking function of the embodiment comprises: a side spoiler 1, a mounting seat 2, a rotating bracket 3 and a locking assembly; the mounting seat 2 is fixedly connected to the heavy truck head; the rotating bracket 3 is fixedly connected to the side spoiler 1 and is rotatably connected to the mounting seat 2, and the axial centerline direction of the rotating axis of the rotating bracket 3 is vertically arranged; the locking assembly is arranged between the mounting seat 2 and the rotating bracket 3, and is used to fix the rotating bracket 3 in two working positions, the first working position: the spoiler is adjacent to the cargo box and plays a diversion role; the second working position: the spoiler is adjacent to the front of the vehicle, which is convenient for people to enter the space between the front of the vehicle and the cargo box; the locking assembly comprises: an outer sleeve column 4 fixedly connected to the mounting seat 2, an inner reversing column 5 connected to the rotating bracket 3, and a fixing assembly for locking the inner reversing column 5 in two working positions is arranged between the outer sleeve column 4 and the inner reversing column 5.

[0026] When the above-mentioned side spoiler is in use, the mounting base 2 is fixed on the front of the heavy truck, the side spoiler 1 is fixedly connected to the rotating bracket 3, the rotating bracket 3 is rotatably connected to the mounting base 2, the mounting base 2 is provided with an outer sleeve column 4, and the rotating bracket is provided with an inner reversing column 5. The switching of the two working positions is realized by the rotation cooperation between the inner reversing column 5 and the outer sleeve column 4, and the fixing assembly can limit and fix the working position of the inner reversing column 5.

[0027] like Figure 8 Fig. 9 As shown, in order to achieve the locking of the inner reversing column 5 in the working position, the outer sleeve column 4 includes a mounting end 41 and a limiting end 42 arranged in opposite directions, and the limiting end 42 of the outer sleeve column 4 is provided with a limiting groove 43, and the groove depth direction of the limiting groove 43 is parallel to the axial direction of the outer sleeve column 4; the inner reversing column 5 is provided with a limiting protrusion 51 that is limited and matched with the limiting groove 43. The outer sleeve column 4 and the inner reversing column 5 are in an up-and-down position relationship, and the inner reversing column 5 is partially rotated in the outer sleeve column 4, and the limiting protrusion 51 of the inner reversing column 5 is limited in the limiting groove 43 of the outer sleeve column 4, so as to achieve the purpose of locking the inner reversing column 5 in the working position.

[0028] like Figure 8 As shown, further, at least two limiting grooves 43 are provided along the circumference of the outer sleeve 4, and the two limiting grooves 43 are provided corresponding to the two working positions. The inner reversing column 5 has corresponding limiting grooves 43 and limiting protrusions 51 in the first working position and the second working position; preferably, the limiting grooves 43 can be provided in pairs of two groups, and the limiting protrusions 51 can also be provided in pairs of two groups to ensure stability during limiting fixation.

[0029] In order to ensure the convenience of the inner reversing column 5 when rotating, the side wall of the limiting groove 43 is provided with an inclined surface 431 which is convenient for the rotation of the limiting protrusion 51. Compared with the right-angled side wall of the limiting groove 43, the expansion of the limiting groove 43 is more conducive to the rotation of the inner reversing column 5, and reduces the force required by the user to bend the side spoiler 1; further, the inclined surface 431 is set as an outward rotating surface.

[0030] like Figure 4-7 As shown, specifically, the outer sleeve column 4 is provided with two upper and lower ones, the inner reversing column 5 is provided corresponding to the outer sleeve column 4, and the fixing assembly is used to limit the limiting protrusion 51 in the limiting groove 43. Two groups of inner reversing columns 5 and outer sleeve columns 4 are provided in one mounting seat 2 and are symmetrically arranged to improve the stability during rotation; further, the mounting seat 2 is provided with two upper and lower ones to improve the stability of the installation of the side spoiler 1.

[0031] Specifically, the fixing assembly includes a fixing bolt 61, a fixing nut 62 threadedly connected to the fixing bolt 61, and the upper and lower outer sleeve columns 4 are sandwiched between the ends of the fixing bolt 61 and the fixing nut 62; the fixing assembly also includes an elastic member for pushing the inner reversing column 5 into the outer sleeve column 4. When the above fixing assembly is used, in the absence of external force, the tension of the elastic member pushes the upper and lower inner reversing columns 5 away from each other, and the limiting protrusion 51 is limited in the limiting groove 43.

[0032] Specifically, the elastic member includes a compression spring 7, which is sleeved outside the fixing bolt 61, and the two ends of the compression spring 7 are respectively set against the two inner reversing columns 5. During the rotation of the inner reversing column 5, it has two synchronous motion states of rotation and sliding, and the compression spring 7 is compressed. When the inner reversing column 5 rotates to the right position, the elastic force of the compression spring 7 fixes the position of the inner reversing column 5.

[0033] like Fig.10 As shown, in order to ensure that the outer sleeve column 4 is fixed in position and does not move, a mutually limiting mounting protrusion 44 and a mounting groove 21 are provided between the mounting seat 2 and the mounting end 41 of the outer sleeve column 4. A matching bearing platform is also provided between the mounting seat 2 and the outer sleeve column 4.

[0034] Specifically, a sliding protrusion 52 and a sliding groove 31 are provided between the rotating bracket 3 and the inner reversing column 5. The sliding protrusion 52 is slidably connected with the sliding groove 31, and the sliding direction of the sliding protrusion 52 is vertically arranged. The outer sleeve column 4 is fixedly connected with the mounting seat 2 and will not move. The rotation of the rotating bracket 3 is realized by the rotation of the inner reversing column 5. The limiting cooperation of the sliding protrusion 52 and the sliding groove 31 ensures that the inner reversing column 5 can rotate when the rotating bracket 3 is rotated by an external force; due to the cooperation of the limiting protrusion 51 and the limiting groove 43, the inner reversing column 5 will slide in the vertical direction when it rotates, because the cooperation of the sliding protrusion 52 and the sliding groove 31 ensures the movement of the inner reversing column 5.

[0035] Furthermore, the mounting seat 2 is provided with a sealing assembly, which includes a sealing cover plate 8, a sealing groove 22 is provided on the circumferential side wall of the mounting seat 2, and the sealing cover plate 8 is provided with a sealing protrusion 81 that is sealed and limitedly matched with the sealing groove 22. Such a design plays a role in limiting the sealing cover plate 8 in the vertical direction.

[0036] Specifically, the mounting seat 2 is provided with an assembly hole 23, and the sealing cover plate 8 is provided with a tilting block 82 elastically matched with the assembly hole 23. Such a design has a limiting effect on the horizontal direction of the sealing cover plate 8, ensuring the sealing performance while facilitating the replacement of the sealing cover plate 8.

[0037] According to an embodiment of the present invention, a sealing ring 9 is provided between the mounting seat 2 and the rotating bracket 3. Such a design further ensures the sealing performance of the overall structure.

[0038] like Figure 13-17 As shown, the steps of switching the side spoiler from the first working position to the second working position are: S1, the inner reversing column 5 is located at the first working position, the inner reversing column 5 is pressed by the compression spring 7, and the limiting protrusion 51 is located in the limiting groove 43 of the first working position; S2, the operator applies force to the side spoiler 1, which is transmitted to the rotating bracket 3 and the inner reversing column 5. Under the action of the external force, the side wall of the limiting protrusion 51 and the side wall of the limiting groove 43 slide relative to each other, the compression spring 7 is compressed, and the inner reversing column 5 slides in the sliding groove 31; S3, as the operator continues to apply force, the inner reversing column 5 continues to slide and rotate, the limiting protrusion 51 is completely separated from the limiting groove 43, and abuts against the limiting end 42, and the compression spring 7 is now in the maximum deformation state of the entire reversing process; S4, when the side wall of the limiting protrusion 51 starts to contact the side wall of the limiting groove 43 of the second working position, the compression spring 7 starts to release the elastic force, pushing the two inner reversing columns 5 away from each other and switching to the second working position; S5, when the limiting protrusion 51 is limited in the limiting groove 43 of the second working position, the compression spring 7 presses the inner reversing column 5 against the outer sleeve column 4, thereby achieving the purpose of switching the side spoiler 1 to the second working position.

[0039] Example 2

[0040] like Figure 1 As shown, Example 2 is based on Example 1, except that: In order to ensure the firmness of the connection between the rotating bracket 3 and the side spoiler 1 , the side spoiler 1 is fixedly provided with a reinforcing platform 11 connected to the rotating bracket 3 .

[0041] like Figure 2-3 As shown, according to one embodiment of the present invention, the rotating bracket 3 is fixedly provided with a plurality of reinforcing ribs 32. Such a design can improve the strength of the rotating bracket 3, thereby increasing the service life of the rotating bracket 3.

[0042] Example 3

[0043] like Figure 19-22 As shown, Example 3 is based on Example 1, except that: The limiting protrusion 51 includes a locking protrusion 511 and an anti-rotation protrusion 512, and the limiting groove 43 includes a first-station locking groove 432, a first-station anti-rotation groove 433, a second-station locking groove 434, and a second-station anti-rotation groove 435. The first-station locking groove 432 and the second-station anti-rotation groove 435 are arranged to overlap. In the first working position: the locking protrusion 511 is limitedly matched with the first station locking groove 432, and the anti-rotation protrusion 512 is limitedly matched with the first station anti-rotation groove 433; In the second working position: the locking protrusion 511 is limitedly matched with the second station locking groove 434, and the anti-rotation protrusion 512 is limitedly matched with the second station anti-rotation groove 435; With such a design, when the side spoiler 1 is in the open or closed state, the inner reversing column 5 can be locked in position by the outer sleeve column 4, and the side spoiler 1 is fixed in the current position. The cooperation between the anti-rotation protrusion 512 and the first-station anti-rotation groove 433 or the second-station anti-rotation groove 435 can prevent the side spoiler 1 from excessive rotation when it is turned by external force.

[0044] Further, the first direction is changed from the second working position to the first working position, and the second direction is changed from the first working position to the second working position; the anti-rotation protrusion 512 includes a first limiting wall 5121 and a second limiting wall 5122 arranged opposite to each other, and the direction of the first limiting wall 5121 to the second limiting wall 5122 is the first direction, the first working position anti-rotation groove 433 includes a third limiting wall 4331 and a fourth limiting wall 4332 arranged opposite to each other, and the second working position anti-rotation groove 435 includes a fifth limiting wall 4351 and a sixth limiting wall 4352 arranged opposite to each other, and the direction of the third limiting wall 4331 to the fourth limiting wall 4332 and the direction of the fifth limiting wall 4351 to the sixth limiting wall 4352 are the first direction; In the first working position, the first limiting wall 5121 is in abutment with the third limiting wall 4331, and the second limiting wall 5122 is spaced apart from the fourth limiting wall 4332; In the second working position, the first limiting wall 5121 and the fifth limiting wall 4351 are spaced apart from each other, and the second limiting wall 5122 and the sixth limiting wall 4352 are in abutment with each other; Furthermore, the protruding end of the anti-rotation protrusion 512 is spaced apart from the bottom of the limiting groove 43 .

[0045] The above structural design is used in: When the side spoiler 1 is switched from the first working position to the second working position: the second limiting wall 5122 and the fourth limiting wall 4332 are arranged at an interval, and the operator's external force of prying only needs to overcome the sliding friction between the locking protrusion 511 and the first position locking groove 432 and the elastic force of the spring. During the rotation process of the entire switching position, the anti-rotation protrusion 512 and the first position anti-rotation groove 433 will no longer contact each other, and no additional external force required for rotating the side spoiler 1 will be added; when the side spoiler 1 is switched to the second working position, the second limiting wall 5122 abuts against the sixth limiting wall 4352. If the side spoiler 1 continues to rotate in the second direction, it is necessary not only to overcome the sliding friction between the locking protrusion 511 and the second position locking groove 434, but also to overcome the friction resistance between the second limiting wall 5122 and the sixth limiting wall 4352, thereby avoiding the phenomenon of the side spoiler 1 continuing to rotate, thereby ensuring that the side spoiler 1 is switched to the second working position in place; When the side spoiler 1 is switched from the second working position to the first working position: the first limiting wall 5121 and the fifth limiting wall 4351 are arranged at an interval, and the operator's external force of bending only needs to overcome the sliding friction between the locking protrusion 511 and the second working position locking groove 434 and the elastic force of the spring. During the rotation process of the entire switching position, the anti-rotation protrusion 512 and the second working position anti-rotation groove 435 will no longer contact, and no additional external force required for rotating the side spoiler 1 will be added; when the side spoiler 1 is switched to the first working position, the first limiting wall 5121 abuts against the third limiting wall 4331. If the side spoiler 1 continues to rotate in the first direction, it is necessary not only to overcome the sliding friction between the locking protrusion 511 and the first working position locking groove 432, but also to overcome the friction resistance between the first limiting wall 5121 and the third limiting wall 4331, thereby avoiding the phenomenon that the side spoiler 1 continues to rotate outward, thereby ensuring that the side spoiler 1 is switched to the first working position.

[0046] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A side spoiler with a self-locking function, characterized in that: include: Side spoiler (1); A mounting seat (2) fixedly connected to the heavy truck head; A rotating bracket (3) is fixedly connected to the side spoiler (1) and is rotatably connected to the mounting seat (2), with the axis of the rotating shaft being arranged vertically; A locking assembly is arranged between the mounting seat (2) and the rotating bracket (3) and is used to fix the rotating bracket (3) in two working positions; it comprises: an outer sleeve column (4) fixedly connected to the mounting seat (2), an inner reversing column (5) connected to the rotating bracket (3), and a fixing assembly is arranged between the outer sleeve column (4) and the inner reversing column (5) and is used to lock the inner reversing column (5) in two working positions.

2. The side spoiler with self-locking function according to claim 1, characterized in that: The outer sleeve column (4) comprises a mounting end (41) and a limiting end (42) arranged in opposite directions; the limiting end (42) of the outer sleeve column (4) is provided with a limiting groove (43); the groove depth direction of the limiting groove (43) is parallel to the axial direction of the outer sleeve column (4); the inner reversing column (5) is provided with a limiting protrusion (51) which is matched with the limiting groove (43) in limiting manner.

3. The side spoiler with self-locking function according to claim 2, characterized in that: At least two of the limiting grooves (43) are arranged along the circumference of the outer sleeve (4), and the two limiting grooves (43) are arranged corresponding to the two working positions.

4. The side spoiler with self-locking function according to claim 2, characterized in that: The side wall of the limiting groove (43) is provided with an inclined surface (431) that facilitates the rotation of the limiting protrusion (51).

5. The side spoiler with self-locking function according to claim 4, characterized in that: The outer sleeve column (4) is provided with two upper and lower ones, the inner reversing column (5) is provided corresponding to the outer sleeve column (4), and the fixing assembly is used to limit the limiting protrusion (51) in the limiting groove (43).

6. The side spoiler with self-locking function according to claim 5, characterized in that: The fixing assembly comprises a fixing bolt (61) and a fixing nut (62) threadedly connected to the fixing bolt (61); the upper and lower outer sleeve columns (4) are clamped between the ends of the fixing bolt (61) and the fixing nut (62); the fixing assembly also comprises an elastic member for supporting the inner reversing column (5) in the outer sleeve column (4).

7. The side spoiler with self-locking function according to claim 6, characterized in that: The elastic member comprises a compression spring (7), the compression spring (7) being sleeved outside the fixing bolt (61), and the two ends of the compression spring (7) being respectively disposed against the two inner reversing columns (5).

8. The side spoiler with self-locking function according to claim 2, characterized in that: A mounting protrusion (44) and a mounting groove (21) that cooperate with each other in limiting position are provided between the mounting seat (2) and the mounting end (41) of the outer sleeve column (4).

9. The side spoiler with self-locking function according to claim 7, characterized in that: A sliding protrusion (52) and a sliding groove (31) that are mutually limited and matched are provided between the rotating bracket (3) and the inner reversing column (5); the sliding protrusion (52) is slidably connected to the sliding groove (31); and the sliding direction of the sliding protrusion (52) is vertically arranged.

10. The side spoiler with self-locking function according to claim 1, characterized in that: The mounting seat (2) is provided with a sealing assembly, the sealing assembly comprising a sealing cover plate (8), a sealing groove (22) is provided on a circumferential side wall of the mounting seat (2), and the sealing cover plate (8) is provided with a sealing protrusion (81) that seals with and limits the sealing groove (22).

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