Steering adjusting structure of frameless glass lifter

Abstract

The utility model discloses a frameless glass lifter steering adjusting structure which comprises a fastening bolt, a mounting base and a connecting nut, a mounting through hole is formed in the mounting base, the connecting nut is embedded in the mounting through hole and rotationally arranged in the mounting through hole, and the fastening bolt penetrates into the mounting through hole to be in threaded connection with the connecting nut. The connecting nut is provided with a limiting structure for limiting rotation of the connecting nut and the mounting through hole in the thread rotation direction of the fastening bolt, and the fastening bolt swings under the action of external force to drive the connecting nut to rotate in the mounting through hole. Due to the improvement of the whole adjusting structure, the mounting position of the adjusting structure on the guide rail is variable and is not limited to the position mounted at the upper end part of the guide rail in the prior art, so that the length ratio of L1 to L2 can be effectively improved by designing double-end screws with the same length at different positions, and the length ratio of L1 to L2 can be effectively improved under the condition that the double-end screws are not lengthened. And the Y-direction pre-pressing amount of the guide rail can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a steering adjustment structure of a frameless glass lifter. Background Art

[0002] Since the frameless glass lifter has a Y-axis pre-compression function, and the compression load of the rubber strip of each door on the actual vehicle and the status at different times deviate, the pre-compression amount of the glass lifter needs to be checked and adjusted regularly.

[0003] Traditional frameless lifters need to adjust the height difference between the upper and lower screws and the guide rails when pre-pressing the glass in the Y direction to adjust the pre-pressing amount of the glass. However, the adjustment structure currently used by our company and other companies has two defects:

[0004] 1. The adjustment assembly with Y-axis height adjustment and X-axis rotation can only be assembled at the end of the guide rail, such as Figure 1 As shown, the glass 101, bracket, and guide rail 102 are regarded as a lever, with point O1 as the fulcrum and the rotation position of point O2 as S1, then the displacement S2 of the glass vertex O3 ≈ S1*(L1+L2) / L1. The longer L1 and the shorter L2, the more limited the glass adjustment margin.

[0005] 2. When the existing adjustment structure (such as the structure described in the patent with patent number CN202120160495.X and the name of a structure for Y-direction adjustment of a glass lifter) is installed with the lifter guide rail, it is necessary to perform flanging processing on the guide rail, and open through holes 103 on two parallel flangings on the guide rail, and then the elastic pin 104 of the adjustment structure is passed through the through holes 103 on the two parallel flangings and the pivot nut of the adjustment structure, and installed in an interlaced manner (such as Figure 2 shown).

[0006] Due to the structural limitations of the existing adjustment structure, the guide rail needs to be flanging designed during the production process, which increases the development cost of the guide rail mold and the price of the guide rail product. At the same time, based on the adjustment structure, the coaxiality requirements for the two through holes opened on the two flanges of the guide rail are also high. In addition, since the stud screw of the adjustment structure can rotate and rotate around the elastic pin axis at a certain angle, special attention needs to be paid to the assembly process of the adjustment structure and the guide rail to meet the adjustment of the preload of the glass. This results in the adjustment structure in the prior art having a complicated assembly process with the guide rail due to its structural limitations, and the tooling maintenance cost of the control pin shaft is also high after long-term use. For this reason, it is necessary to provide a new adjustment structure that can reduce the production cost of the guide rail and the assembly cost of the glass lifter while meeting the adjustment of the preload of the glass. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a frameless glass lifter steering adjustment structure, which improves the utilization rate of the adjustment screw adjustment amount, increases the preload adjustment space; reduces the structural complexity of the lifter guide rail; and reduces the assembly cost of the glass lifter.

[0008] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a frameless glass lifter steering adjustment structure, including a fastening bolt, a mounting base and a connecting nut, the mounting base is provided with a mounting through hole, the connecting nut is embedded in the mounting through hole and rotatably arranged in the mounting through hole, the fastening bolt penetrates into the mounting through hole and is threadedly connected to the connecting nut, the connecting nut is provided with a limiting structure for limiting the rotation of the fastening bolt and the mounting through hole along the rotation direction of the fastening bolt thread, and the fastening bolt swings under the action of external force to drive the connecting nut to rotate in the mounting through hole.

[0009] The principle of the utility model is as follows: when the adjusting structure is used, the mounting base and the guide rail of the lifter are first fixed by welding or riveting, and a strip hole (rectangular hole) is reserved in the guide rail and arranged opposite to the mounting through hole, so that the guide rail can be fine-tuned after being connected with the adjusting structure; then the fastening bolt is passed through the strip hole of the guide rail and threadedly connected with the connecting nut embedded in the mounting through hole; due to the existence of the limiting structure, the fastening bolt can be smoothly rotatably connected with the connecting nut and the connection amount between the fastening bolt and the connecting nut can be adjusted; in addition, the connecting nut can be rotated in the mounting through hole, and the fastening bolt is a double-headed screw in the prior art, so the preload of the glass lifter can be changed by rotating the fastening screw, so that the adjusting structure can achieve the purpose of adjusting the preload of the glass lifter in the prior art.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model provides a new adjustment structure, which can achieve the same function as the adjustment structure in the prior art (patent number CN202120160495.X); however, the setting of the adjustment structure of the utility model does not require adding a flange structure to the guide rail, thereby reducing the production cost of the guide rail.

[0012] At the same time, due to the improvement of the overall structure of the adjustment structure, the connection between the mounting base and the guide rail is more convenient, making the overall installation of the lifter containing the guide rail faster and saving the installation cost of the lifter.

[0013] Finally, due to the improvement of the overall adjustment structure, the installation position of the adjustment structure on the guide rail is variable and is not limited to the position installed on the upper end of the guide rail in the prior art. Therefore, stud screws of the same length designed in different positions can effectively improve the length ratio of L1 and L2, thereby increasing the Y-direction preload of the guide rail without lengthening the stud screws.

[0014] Furthermore, the limiting structure includes two oppositely disposed straight side walls on the outer periphery of the connecting nut and two oppositely disposed arc-shaped side walls protruding outward, and any of the oppositely disposed straight side walls is located between the two arc-shaped side walls and connected to each other;

[0015] The connecting nut is embedded in the installation through hole and rotates along the arc direction of the two arc side walls.

[0016] Furthermore, the inner wall of the mounting through hole is provided with two oppositely arranged planar inner walls used in conjunction with the limiting structure and two oppositely arranged curved inner walls protruding outwards, and any planar inner wall is located between the two curved inner walls and connected thereto.

[0017] Furthermore, a guide plane arranged along the through hole direction of the installation through hole is provided at the connection position between any curved inner wall and the two planar inner walls.

[0018] Furthermore, the connecting nut is detachably connected to the mounting base.

[0019] Furthermore, the mounting base is provided with mounting side ears extending outwards.

[0020] Furthermore, the number of the mounting side ears is at least two.

[0021] Furthermore, the hole diameter of the mounting through hole is larger than the inner diameter of the connecting nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of glass preload adjustment in the prior art;

[0023] Figure 2 It is a schematic diagram of the assembly process of the adjustment structure and the guide rail with flange in the prior art;

[0024] Figure 3 This is a schematic diagram of the installation structure of the installation base and the connecting nut of the utility model;

[0025] Figure 4 It is the structural explosion diagram of the utility model;

[0026] Figure 5 It is a schematic diagram of the exploded structure of the installation base and the connecting nut of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the utility model installed in coordination with the guide rail;

[0028] Figure 7 Two structural schematic diagrams of the connecting nut of the utility model;

[0029] Figure 8 It is a length marking diagram of the connection nut of the utility model along the thread depth direction;

[0030] Fig. 9 It is a diagram marking the length of the connecting nut extending out of the mounting through hole when the connecting nut of the utility model is matched with the mounting base;

[0031] Fig.10 A distance marking diagram of the installation through hole of the utility model between two guide planes along the direction perpendicular to the through slot;

[0032] Fig.11 for Fig.10 Dimensioning diagram of the AA line section view;

[0033] Fig.12 for Fig.10 Another dimensioning diagram of .

[0034] In the figure: a fastening bolt 1, a guide rail 102, a mounting base 2, a mounting side ear 21, a curved inner wall 22, a guide plane 23, a flat inner wall 24, a mounting through hole 25, a connecting nut 3, an arcuate side wall 31, and a straight side wall 32. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] like Figure 3 , 4 As shown in 6, a frameless glass lifter steering adjustment structure includes a fastening bolt 1, which is a double-headed screw in the prior art. The structure is the same as the structure of the double-headed screw in the prior art (the patent number is CN202120160495.X), and mainly plays the role of rotation adjustment. Since the fastening bolt 1 needs to have a certain amount of swing along the connection point between it and the guide rail 102 when in use, the utility model provides a new adjustment structure in combination with its use requirements. The adjustment structure includes a fastening bolt 1, a mounting base 2 and a connecting nut 3. The mounting base 2 is provided with a mounting through hole 25, and the connecting nut 3 is embedded in the mounting through hole 25 and is rotatably arranged in the mounting through hole 25. The fastening bolt 1 penetrates into the mounting through hole 25 and is threadedly connected to the connecting nut 3. The connecting nut 3 is provided with a limiting structure that limits the fastening bolt 1 and the mounting through hole 25 to rotate along the thread rotation direction of the fastening bolt 1, and the fastening bolt 1 swings under the action of an external force to drive the connecting nut 3 to rotate in the mounting through hole 25.

[0037] In order to make the connection nut 3 embedded in the installation through hole 25 and rotate in the installation through hole 25; and also to ensure that when the connection nut 3 is connected to the fastening bolt 1 by rotation, the connection nut 3 cannot rotate in the installation through hole 25 in this direction. The utility model provides a connection nut 3 structure that can achieve the above effect. Figure 2 , 3 As shown in FIG. 4 , the external structure of the connecting nut 3 is roughly hemispherical (such as Figure 7 Of course, the shape of the connecting nut 3 is not limited to a hemispherical shape, but can also be a rotatable semi-cylindrical shape (such as Figure 7 As shown in (2), as long as the connecting nut 3 can be rotated in a specific direction in the mounting through hole 25, and when the fastening bolt 1 is rotationally connected with the connecting nut 3, the connecting nut 3 will not rotate in the mounting through hole 25. Based on the structure of the connecting nut 3 in this embodiment, the outer periphery of the connecting nut 3 includes two oppositely arranged straight side walls 32 and two oppositely arranged arcuate side walls 31 protruding outward, and any of the straight side walls 32 is located between the two arcuate side walls 31 and connected. The two straight side walls 32 on the connecting nut 3 can limit the rotation direction of the connecting nut 3, so as to prevent the connecting nut 3 from rotating in the mounting through hole 25 when the fastening bolt 1 is rotationally connected with the connecting nut 3, and the two arcuate side walls 31 can make the fastening bolt 1 under the action of external force, and can drive the connecting nut 3 to rotate in the mounting through hole 25 along the arc direction of the arcuate side walls 31, so as to achieve the use function of the adjustment structure in the prior art. Of course, the overall shape of the arcuate side wall 31 can also be hemispherical or semi-cylindrical, the purpose of which is only to ensure that the arcuate side wall 31 can rotate in a preset direction when it contacts the inner part of the mounting through hole 25 .

[0038] The installation through hole 25 is provided to not only embed the connecting nut 3, but also enable the connecting nut 3 to rotate or brake in the installation through hole 25 according to the use requirements. The utility model is provided with a mounting through hole 25 structure matching the structure of the connecting nut 3 on the basis of the structure of the connecting nut 3, such as Figure 4 , 5As shown, the inner wall of the mounting through hole 25 is provided with two oppositely arranged planar inner walls 24 and two oppositely arranged curved inner walls 22 protruding outwardly for use in conjunction with the limiting structure, and any planar inner wall 24 is located between the two curved inner walls 22 and connected to each other. When the connecting nut 3 is embedded in the mounting through hole 25, the two straight side walls 32 of the connecting nut 3 are just in contact with the two planar inner walls 24 in the mounting through hole 25, and the two arc-shaped side walls 31 of the connecting nut 3 are used in conjunction with the two curved inner walls 22 of the mounting through hole 25. The mounting through hole 25 and the connecting nut 3 of this structure can ensure that during the process of the fastening bolt 1 rotating and the bolt connection with the connecting nut 3, the positions of the connecting nut 3 and the mounting through hole 25 remain basically unchanged, thereby achieving the braking effect of the connecting nut 3, and then the fastening bolt 1 can be rotated to achieve the purpose of adjusting the preload; and the curved inner wall 22 of the mounting through hole 25 cooperates with the arc-shaped side wall 31 of the connecting nut 3, so that when the fastening bolt 1 swings along its axial direction, the connecting nut 3 can rotate in the mounting through hole 25 to achieve the desired installation purpose.

[0039] The design of the curved inner wall 22 of the mounting hole 25 and the arcuate side wall 31 of the connecting nut 3 can not only effectively provide the function of the connecting nut 3 rotating up and down, but also effectively increase the contact area between the connecting nut 3 and the inner wall of the mounting hole 25, increase the force transmission effect, and improve stability. The fit between the two straight side walls 32 of the connecting nut 3 and the two flat inner walls 24 in the mounting hole 25 can effectively prevent the connecting nut 3 from rotating along the axial direction of the fastening bolt 1. Without this structural design, the connecting nut 3 will rotate along with the fastening bolt 1. In addition, the external structure of the mounting hole 25 can be set arbitrarily, as long as the internal structure of the mounting hole 25 matches the peripheral structure of the connecting nut 3.

[0040] In summary, combined with the structure of the mounting through hole 25 and the connecting nut 3, the principle of the present utility model is as follows:

[0041] When the adjustment structure is used, the mounting base 2 is first fixed to the guide rail 102 of the lifter by welding or riveting, and a strip hole (rectangular hole) is reserved in the guide rail 102 and arranged opposite to the mounting through hole 25, so that the guide rail 102 can be fine-tuned after being connected to the adjustment structure; then the fastening bolt 1 is passed through the strip hole of the guide rail 102 and threadedly connected to the connecting nut 3 embedded in the mounting through hole 25; due to the existence of the limiting structure, the fastening bolt 1 can be smoothly rotated and connected with the connecting nut 3 and the connection amount between the fastening bolt 1 and the connecting nut 3 can be adjusted; in addition, the connecting nut 3 can rotate in the mounting through hole 25, and the preload of the glass lifter can be changed by rotating the fastening screw, so that the adjustment structure can achieve the purpose of adjusting the preload of the glass lifter in the prior art.

[0042] The utility model provides a new adjustment structure, which can realize the adjustment function and improve the overall structure of the adjustment structure, so that there is no need to add a flange structure to the guide rail 102, thereby reducing the production cost of the guide rail 102.

[0043] At the same time, due to the improvement of the overall structure of the adjustment structure, the connection between the mounting base 2 and the guide rail 102 is more convenient, making the overall installation of the lifter including the guide rail 102 faster and saving the installation cost of the lifter.

[0044] Finally, due to the improvement of the overall adjustment structure, the installation position of the adjustment structure on the guide rail 102 is variable, and is not limited to the position installed at the upper end of the guide rail 102 in the prior art. Therefore, the stud screws of the same length can be designed in different positions to effectively improve the adjustment. Figure 1 The length ratio of L1 to L2 can increase the preload in the Y direction of the guide rail 102 without lengthening the stud screw.

[0045] Furthermore, in order to facilitate the connection nut 3 to rotate in the mounting hole 25 under the action of the fastening bolt 1, the aperture of the mounting hole 25 provided in the utility model must be larger than the inner diameter of the connection nut 3, so that the fastening bolt 1 connected to the connection nut 3 can also have sufficient swinging space.

[0046] Furthermore, in order to facilitate the production and processing of the mounting base 2 and the connecting nut 3, the utility model connects the connecting nut 3 to the mounting base 2 in a detachable manner. Figure 3 , 4 5, specifically, since the connecting nut 3 can rotate in the arc direction of the two arc-shaped side walls 31 of the connecting nut 3 in the mounting through hole 25; when the connecting nut 3 is not connected to the fastening bolt 1, the connecting nut 3 can be rotated to the position where its arc-shaped side wall 31 is located at the opening position of the mounting through hole 25 (i.e. Figure 3 The connecting nut 3 is rotated 90° around the direction of the view), and then the connecting nut 3 can be taken out of the mounting through hole 25 by external force; and when the connecting nut 3 needs to be connected to the mounting through hole 25, the connecting nut 3 can be set in the mounting through hole 25 by simply performing the reverse operation. Figure 3 In the state shown, the fastening screw is then used to penetrate the bar hole of the guide rail 102 and penetrate into the mounting through hole 25 to be threadedly connected with the connecting nut 3. To this end, based on the structure of the connecting nut 3 and the mounting through hole 25, the connecting nut 3 can be detachably connected to the mounting through hole 25, and can be produced and processed separately during the production and processing process, reducing the production and processing difficulty of the mounting base 2 and the connecting nut 3. In addition, the assembly process of the connecting nut 3 and the mounting through hole 25 is also extremely simple and convenient, which improves the assembly efficiency of the lifter assembly.

[0047] Furthermore, in order to smoothly insert the connecting nut 3 into the installation through hole 25 and to facilitate the insertion of the connecting nut 3, a guide plane 24 arranged along the through hole direction of the installation through hole 25 is provided at the junction of any curved inner wall 22 and the two planar inner walls 24 in the installation through hole 25. Figure 4 , 5 As shown, four guide planes 24 are provided at each end of the mounting through hole 25, and the four guide planes 24 extend into the mounting through hole 25. When the guide planes 24 are designed, there is a certain inclination angle for guidance, so as to ensure that the connecting nut 3 inserted into the mounting through hole 25 along the guide planes 24 can enter smoothly. Specifically, it can be understood that the four guide planes 24 provided at each end of the mounting through hole 25 are inclined from the outside of the mounting through hole 25 to the inside of the mounting through hole 25 in a contracted state; or, the four guide planes 24 provided at each end of the mounting through hole 25 are inclined from the inside of the mounting through hole 25 to the outside of the mounting through hole 25 in a diffused state. The guide planes 24 not only guide the connecting nut 3 during the insertion process, but also avoid the connecting nut 3, and do not affect the rotation of the connecting nut 3. Without this design structure, the connecting nut 3 will not be able to penetrate into the base.

[0048] Furthermore, since the mounting base 2 is directly fixedly connected to the guide rail 102, in order to facilitate the fixing of the mounting base 2 and the guide rail 102, the utility model is provided with an outwardly extending mounting side ear 21 on the mounting base 2, and the number of the mounting side ears 21 can be one or more. The mounting position of the mounting side ear 21 can be set according to the needs, and its main purpose is to facilitate the fixing connection of the entire mounting base 2 and the guide rail 102.

[0049] In order to make the mounting side ears 21 fit and fix with the guide rail 102, in this embodiment, the mounting side ears 21 extend outward along any opening end of the mounting through hole 25 and are arranged flush with the opening end of the mounting through hole 25. Figure 4 , 5 As shown, the mounting side ear 21 is arranged to fit the guide rail 102, and, according to the selection of the fixing method of the mounting side ear 21 and the guide rail 102, a rivet hole can also be opened on the mounting side ear 21 to facilitate the riveting fixation of the mounting side ear 21 and the guide rail 102; or, there is no need to set a rivet hole on the mounting side ear 21, and the mounting side ear 21 and the guide rail 102 can be directly fixed by welding, so that the mounting base 2, the mounting through hole 25 and the guide rail 102 can be fixed.

[0050] Of course, in some special cases, the guide rail 102 is not a horizontal plane; in this case, the installation side ear 21 can be arranged to extend outward near the open end of the installation through hole 25, and can be offset at a certain angle along the open end of the installation through hole 25; or the installation side ear 21 can have a certain distance from the open end of the installation through hole 25; it is only necessary to ensure that the installation position of the installation side ear 21 and the installation through hole 25 can match the structure of the guide rail 102, so that after the installation side ear 21 is fixed to the guide rail 102, the entire mounting base 2 can be fixed to the guide rail 102.

[0051] Furthermore, in order to ensure a stable connection between the mounting base 2 and the guide rail 102, the number of mounting side ears 21 can be 2, 3, 4, 6, etc. Providing at least two mounting side ears 21 can disperse the force when the mounting side ears 21 are connected to the guide rail 102, increase the stability of the connection between the mounting side ears 21 and the guide rail 102, and improve the service life of the entire adjustment structure. And the setting positions of multiple mounting side ears 21 can be set according to requirements to ensure that the entire mounting base 2 meets the force requirements after being connected to the guide rail 102. In this embodiment, if Figure 4 , 5 As shown, there are two mounting side ears 21, and the two mounting side ears 21 are arranged to extend outwardly along the opening end of the mounting through hole 25. The arrangement position of the two mounting side ears 21 can also be Figure 5 The mounting hole 25 is arranged to be rotated 90 degrees along the through hole direction of the mounting through hole 25 (ie, it extends outward along the outer sides of the two curved inner walls of the mounting through hole 25).

[0052] In order to further define the relationship between the various components of the regulating structure in the present invention, it will be defined from the following aspects.

[0053] 1. Reference Figure 7 , 9 , 11, the length of the connecting nut 3 that needs to extend out of the mounting through hole 25 when embedded in the mounting through hole 25 is limited to b (the extension amount at each end is b); the spherical radius corresponding to the curved inner wall 22 of the mounting through hole 25 is limited to R, and the curved angle of the curved inner wall 22 is limited to α; and the length of the entire connecting nut 3 is limited to L. Then b, R, α, and L satisfy the formula: Sin(α / 2)*R=(L / 2)-b; among which b, R, and L are variables, and the angle α is determined by the first three variables.

[0054] 2. The design of the guide plane 23 is based on the fact that the overall structure of the connecting nut 3 is roughly hemispherical ( Figure 4 ), such as Fig.11 As shown, based on the hemispherical connecting nut 3, the width L1 of the guide plane 23 along the installation through hole 25 is ≥ 1mm. In this embodiment, the width of the guide plane 23 along the installation through hole 25 is 1mm. Figure 7 As shown in (2) in FIG. 1 , there is no need to provide a guide plane 23 in the mounting through hole 25.

[0055] 3. To smoothly rotate the connecting nut 3 into or out of the mounting hole 25, Figure 8 , 10 As shown in FIG. 12 , at either end of the mounting through hole 25, the distance L2 between the two guide planes 23 along the length direction of the mounting through hole 25 is equal to the depth L of the thread in the connecting nut 3 (also called the length of the connecting nut 3).

[0056] If the connecting nut 3 is Figure 7 In the hemispherical structure of (1), the length of the distance C between the two plane inner walls 24 in the mounting hole 25 satisfies If the connecting nut 3 is Figure 7 In (2), the structure is roughly semi-cylindrical. The length of the distance C' between the two plane inner walls 24 in the mounting through hole 25 of this structure satisfies

[0057] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A frameless glass lifter steering adjustment structure, comprising a fastening bolt (1), characterized in that: The invention also comprises a mounting base (2) and a connecting nut (3); the mounting base (2) is provided with a mounting through hole (25); the connecting nut (3) is embedded in the mounting through hole (25) and is rotatably arranged in the mounting through hole (25); the fastening bolt (1) penetrates into the mounting through hole (25) and is threadedly connected with the connecting nut (3); the connecting nut (3) is provided with a limiting structure for limiting the rotation of the fastening bolt (1) and the mounting through hole (25) along the threaded rotation direction of the fastening bolt (1); and the fastening bolt (1) swings under the action of an external force to drive the connecting nut (3) to rotate in the mounting through hole (25).

2. The frameless glass lifter steering adjustment structure according to claim 1, characterized in that: The limiting structure comprises two oppositely disposed straight side walls (32) on the outer periphery of the connecting nut (3) and two oppositely disposed arc-shaped side walls (31) protruding outward, and any of the oppositely disposed straight side walls (32) is located between the two arc-shaped side walls (31) and is disposed in contact with each other; The connecting nut (3) is embedded in the mounting through hole (25) and rotates along the arc direction of the two arc side walls (31).

3. A frameless glass lifter steering adjustment structure according to claim 1 or 2, characterized in that: The inner wall of the mounting through hole (25) is provided with two oppositely arranged planar inner walls (24) used in conjunction with the limiting structure and two oppositely arranged outwardly protruding curved inner walls (22), and any planar inner wall (24) is located between the two curved inner walls (22) and is connected to each other.

4. The frameless glass lifter steering adjustment structure according to claim 3, characterized in that: A guide plane (23) arranged along the through hole direction of the installation through hole (25) is provided at the connection position between any curved inner wall (22) and the two planar inner walls (24).

5. The frameless glass lifter steering adjustment structure according to claim 3, characterized in that: The connecting nut (3) is detachably connected to the mounting base (2).

6. A frameless glass lifter steering adjustment structure according to claim 1, 2 or 4, characterized in that: The connecting nut (3) is detachably connected to the mounting base (2).

7. A frameless glass lifter steering adjustment structure according to claim 1, 2, 4 or 5, characterized in that: The mounting base (2) is provided with mounting side ears (21) extending outwards.

8. The frameless glass lifter steering adjustment structure according to claim 7, characterized in that: The number of the mounting side ears (21) is at least two.

9. A frameless glass lifter steering adjustment structure according to claim 1, 2, 4, 5 or 8, characterized in that: The hole diameter of the mounting through hole (25) is larger than the inner diameter of the connecting nut (3).

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