Screw adjusting combined structure of frameless glass lifter

Abstract

The utility model belongs to the technical field of automobile parts, and discloses a screw adjusting combined structure of a frameless glass lifter, which comprises a locking nut fixed on a guide rail and an adjusting screw matched with the locking nut, a nut cap of the locking nut is fixedly connected with the guide rail, a pressing groove is formed in an orifice of a nut head, and nut threads at the pressing groove are extruded and deformed in the direction of the guide rail to be fastened with the adjusting screw. After the pressing groove is formed in the orifice of the nut head of the locking nut, the nut threads at the pressing groove are extruded and deformed towards the guide rail, so that the friction coefficient between the locking nut and the adjusting screw can be increased, the locking nut can be prevented from loosening, and the torque of the adjusting screw during torsion can be increased. By the adoption of the structure, the requirement for torque in actual use can be met, the torque is almost not attenuated, the defects of torque attenuation and the like caused by the fact that fastening glue is prone to falling off are overcome, and applicability and practicability are high.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a screw adjustment assembly structure for a frameless window regulator. Background Technology

[0002] Frameless window regulators mainly consist of key functional modules such as dual aluminum or steel guide rail assemblies, drive sliders, and support arm assemblies. Compared to ordinary framed designs, frameless window regulators employ a bidirectional load-bearing layout, significantly improving the support stiffness ratio and sliding smoothness during operation. This ensures the dynamic stability of the high-strength glass door panel during lifting and lowering, while also avoiding unilateral guide deviation caused by complex mechanical superposition effects.

[0003] Currently, common frameless window regulators include Figure 1 As shown, the upper and lower mounting points of the guide rail are fixed to the door sheet metal by screws and nuts, and thread-locking adhesive is usually applied to the screws or nuts. The applied adhesive penetrates and fills the tiny gaps between the threads, forming strong adhesion and friction after curing, effectively preventing loosening of the threaded connection due to vibration or impact. In actual use, the upper and lower mounting points usually need to be adjusted in the vehicle width direction to accommodate deviations in the dimensions of parts such as the door frame, rubber strips, water deflectors, and glass; and this adjustment is also necessary during after-sales maintenance or replacement of the window regulator. The increased coefficient of friction after applying the adhesive requires greater force to overcome friction during tightening, thus increasing the torque between the screw and nut and ensuring appropriate adjustment torque during adjustment.

[0004] While applying thread-locking adhesive to screws or nuts can increase the torque between them, this method still has the following drawbacks:

[0005] 1. The additional application of adhesive increases costs and requires an additional adhesive application step during processing, resulting in lower production efficiency;

[0006] 2. During the production process of frameless window regulators, the applied adhesive may come off when the screw is screwed into the nut. This may cause the screw and nut to fail to reach the required adjustment torque during actual use.

[0007] 3. After repeated adjustments to the screws and nuts, the fastening adhesive may come off easily, which can lead to a significant decrease in torque and affect the normal use of the equipment. Utility Model Content

[0008] The purpose of this utility model is to propose a screw adjustment assembly structure for a frameless glass lifter. Its structure is simple, requires no glue, and has minimal torque attenuation after multiple adjustments, so it will not affect the normal use of the equipment. It not only saves costs but also greatly improves production efficiency and is highly practical.

[0009] The technical solution adopted to achieve the purpose of this utility model is:

[0010] A screw adjustment assembly structure for a frameless window regulator includes a locking nut fixed on a guide rail and an adjusting screw that mates with the locking nut. The nut head of the locking nut is fixedly connected to the guide rail, and a groove is provided at the opening of the nut head. The threads of the nut at the groove are deformed by compression in the direction of the guide rail and tightened with the adjusting screw.

[0011] Furthermore, there are two or more pressure grooves, which are evenly distributed at the nut head hole of the locking nut.

[0012] Furthermore, the groove width w is 2-5mm, and the groove depth h is 0.1-2mm.

[0013] Furthermore, the locking nut is either a rivet nut or a weld nut.

[0014] Furthermore, a washer is also provided on the adjusting screw.

[0015] The beneficial effects of this utility model are as follows: After a groove is provided at the nut head opening of the locking nut, the nut threads at the groove are deformed in the direction of the guide rail. This increases the coefficient of friction between the locking nut and the adjusting screw, which not only prevents the locking nut from loosening but also increases the torque of the adjusting screw during torsion. The structure of this utility model can meet the torque requirements in actual use, and the torque hardly decreases, overcoming the defects of using adhesive fasteners that easily fall off and cause torque attenuation. It has good applicability and strong practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a common frameless window regulator structure.

[0018] Figure 2 This is a structural schematic diagram of one embodiment of the present invention.

[0019] Figure 3 Is Figure 2This is a schematic diagram of a structure that is installed onto the sheet metal of a car door.

[0020] Figure 4 This is a structural schematic diagram of another embodiment of the present invention.

[0021] Figure 5 Is Figure 4 This is a schematic diagram of a structure that is installed onto the sheet metal of a car door.

[0022] Figure 6 This is a side view of a locking nut according to the present invention.

[0023] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure of the AA plane.

[0024] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure of the middle BB plane.

[0025] Figure 9 This is a schematic diagram of the structure of the adjusting screw of this utility model.

[0026] Figure 10 This is a schematic diagram of the threaded fit between the locking nut and the adjusting screw of this utility model.

[0027] In the diagram: 1. Guide rail; 2. Locking nut; 3. Adjusting screw; 4. Groove; 5. Nut thread; 6. Door sheet metal; 7. Screw thread; 8. Washer; 9. Locking screw hole; 10. Mounting hole; 11. Fixing nut. Detailed Implementation

[0028] The illustrated embodiments are provided to better illustrate the present invention, but the content of the present invention is not limited to the illustrated embodiments. Therefore, non-essential improvements and adjustments made to the implementation schemes by those skilled in the art based on the above-described content of the present invention still fall within the protection scope of the present invention.

[0029] like Figures 1 to 10 As shown, a screw adjustment assembly structure for a frameless glass lifter includes a locking nut 2 fixed on a guide rail 1, and an adjusting screw 3 that cooperates with the locking nut 2. The nut cap of the locking nut 2 is fixedly connected to the guide rail 1, and a groove 4 is provided at the nut head opening. The nut thread 5 at the groove 4 is squeezed and deformed in the direction of the guide rail 1 and tightened with the adjusting screw 3.

[0030] The structure of this utility model is mainly used on the guide rail 1 of the frameless window regulator. It is used to fix the guide rail 1 to the car door sheet metal 6, and adjust the distance between the guide rail 1 and the car door sheet metal 6 by adjusting the screw 3, so as to realize the adjustment of the guide rail 1 in the width direction of the car to adapt to the deviation of the dimensions of the car door frame, rubber strip, water cutter and glass and other parts.

[0031] After a groove 4 is provided at the nut head opening of the locking nut 2, the nut thread 5 at the groove 4 is deformed by compression in the direction of the guide rail 1. This increases the coefficient of friction between the locking nut 2 and the adjusting screw 3, which not only prevents the locking nut 2 from loosening but also increases the torque of the adjusting screw 3 when twisted. After the deformed nut thread 5 near the groove 4 meshes with the screw thread 7, the interference increases, thereby increasing the matching torque. The structure of this utility model can meet the torque requirements in actual use, and the torque hardly decays, overcoming the shortcomings of using fastening glue, such as easy detachment and torque decay. It has good applicability and strong practicality. Figure 7 In the magnified image, the dotted line at groove 4 represents the position of the nut thread 5 before deformation.

[0032] The grooving process 4 is an existing process, and the main steps are as follows: Prepare the locking nut 2, grooving equipment and tools, such as the grooving machine and cutting tools; then design the shape and size of the groove 4 on the locking nut 2; then fix the locking nut 2 on the grooving machine, adjust the position and angle of the cutting tool, and perform the grooving operation; after the grooving 4 is completed, perform subsequent processes such as heat treatment and surface treatment on the nut as needed to improve its service life and corrosion resistance.

[0033] like Figure 6 As shown, in this utility model, there are two or more pressure grooves 4, which are evenly distributed at the nut head hole of the locking nut 2; the width w of the pressure groove 4 is 2-5mm, and the depth h is 0.1-2mm. The number of pressure grooves 4 can be selected according to actual needs. In this utility model, it is preferred that there are three pressure grooves 4; the width w of the pressure groove 4 is 3mm, and the depth h is 1.5mm.

[0034] In this invention, the locking nut 2 is either a rivet nut or a weld nut, and a locking screw hole 9 is provided in the center of the locking nut 2. The specific type of nut can be selected according to actual needs. The guide rail 1 has a mounting hole 10 that mates with the locking nut 2. During installation, the end of the locking nut 2 containing the nut head is passed through the mounting hole 10, and then the nut head is fixed onto the guide rail 1. The adjusting screw 3 is then screwed into the locking screw hole 9. It should be noted that when the locking nut 2 is inserted into the mounting hole 10, it should pass through the mounting hole 10 from the side closer to the inside of the vehicle towards the side closer to the outside of the vehicle.

[0035] like Figure 2 and Figure 3As shown, in one embodiment of this utility model, the locking nut 2 is a rivet nut, and its installation process is as follows: clean the surface of the rivet nut, then pass the nut head of the rivet nut through the mounting hole 10 until the nut cap contacts the guide rail 1, and then use a rivet gun to tighten the bolt until the rivet nut deforms and clamps the guide rail 1. In the above process, a pneumatic rivet tool can also be used.

[0036] like Figure 4 and Figure 5 As shown, in another embodiment of this utility model, the locking nut 2 is a welded nut, and its installation process is as follows: the surface of the welded nut is cleaned, and then the nut head of the welded nut is passed through the mounting hole 10 until the nut cap contacts the guide rail 1, and then the nut cap is welded onto the guide rail 1.

[0037] like Figures 3 to 5 , Figure 9 As shown, in this utility model, the adjusting screw 3 is also provided with a washer 8. The washer 8 is located between the guide rail 1 and the door sheet metal 6, and abuts against the door sheet metal 6. The washer 8 mainly serves as a limit to prevent the adjusting screw 3 from slipping down along the direction of the door sheet metal 6, and a fixing nut 11 is also provided on the other side of the side sheet metal (i.e., the direction closer to the interior of the vehicle). The fixing nut 11 cooperates with the adjusting screw 3, and the fixing nut 11 and the washer 8 clamp the door sheet metal 6. When it is necessary to turn the adjusting screw 3, the fixing nut 11 needs to be loosened and removed first. For ease of processing, the washer 8 and the adjusting screw 3 are integrally formed in this utility model.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered by the claims of this utility model.

Claims

1. A screw adjustment assembly for a frameless glass lift, characterized in that, The application relates to a locking nut (2) fixed on a frameless glass lifter guide rail (1), and an adjusting screw (3) matched with the locking nut (2); the nut cap of the locking nut (2) is fixedly connected with the guide rail (1), a pressing groove (4) is arranged at the nut head orifice, and the nut thread (5) at the pressing groove (4) is extruded and deformed towards the nut cap and tightly fastened with the adjusting screw (3).

2. The screw adjustment assembly of a frameless glass lifter according to claim 1, wherein, The number of the pressing grooves (4) is two or more, and the pressing grooves (4) are uniformly distributed at the nut head orifice of the locking nut (2).

3. The screw adjustment assembly of a frameless glass lifter according to claim 1 or 2, characterized in that, The groove width w of the pressing groove (4) is 2-5 mm, and the groove depth h is 0.1-2 mm.

4. The screw adjustment assembly of a frameless glass lifter according to claim 1 or 2, characterized in that, The locking nut (2) is a pull rivet nut or a welded nut.

5. The screw adjustment assembly of a frameless glass lifter according to claim 3, wherein, The locking nut (2) is a pull rivet nut or a welded nut.

6. The screw adjustment assembly of a frameless glass lifter according to claim 1, 2 or 5, wherein, A gasket (8) is further arranged on the adjusting screw (3).

7. The screw adjustment assembly of a frameless glass lifter according to claim 3, wherein, A gasket (8) is further arranged on the adjusting screw (3).

8. The screw adjustment assembly of claim 4, wherein, A gasket (8) is further arranged on the adjusting screw (3).

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