Automatic tolerance adjusting piece for fixing instrument panel support

Abstract

The utility model provides an automatic tolerance adjusting piece for fixing an instrument panel support. The automatic tolerance adjusting piece is characterized in that a metal plate positioning groove supporting and fixing structure is arranged at the bottom of an anti-falling clamping seat; the locking nut is clamped in a nut limiting groove in the anti-falling clamping seat; the integrated metal adjusting part is arranged in the center of the locking nut in a penetrating mode through thread fit, the friction element is clamped in a through hole in the center of the top of the integrated metal adjusting part, and the integrated metal adjusting part structure is formed at a time through cold heading, so that cost is low; in actual use, firstly, the automatic tolerance adjusting piece is inserted into the instrument panel support metal plate positioning groove and fixed through the metal plate positioning groove supporting and fixing structure, then the installation bolt is inserted into the automobile body plate, and the integrated metal adjusting piece is screwed clockwise to rotate, so that the integrated metal adjusting piece ascends, and the automobile body plate is fixed through the metal plate positioning groove supporting and fixing structure. And when the metal plate supporting end abuts against the metal plate of the automobile body, the screw is continuously tightened until the screw cannot be screwed, and the effect of adjusting and supporting the instrument panel support metal plate in the automobile and the automobile body metal plate is achieved.

Description

Technical Field

[0001] The utility model relates to the field of automotive parts, especially to the technical field of axial adjusting parts, and specifically to an automatic tolerance adjusting part for fixing an instrument panel bracket. Background Art

[0002] When the instrument panel bracket inside the vehicle and the body sheet metal are processed, the finished product size will float within the tolerance range, resulting in a tolerance gap during their assembly. This will cause problems such as shaking or abnormal noises during vehicle operation, affecting the driving experience. Therefore, it is necessary to design an adjusting part that can be installed between the instrument panel bracket inside the vehicle and the body sheet metal to play a supporting and adjusting role, so as to improve the assembly stability between the instrument panel bracket inside the vehicle and the body sheet metal.

[0003] A clamping type tolerance compensation fastening device is disclosed in the prior art, with the patent number CN212377083U, which discloses a clamping type tolerance compensation fastening device, including an anti - detachment fixing seat, a locking nut, a threaded bushing, a gasket and a friction part. The anti - detachment fixing seat, the locking nut and the threaded bushing are coaxially sleeved from the outside in sequence. A gasket flush with it is sleeved on the top of the friction part; the bottom of the friction part is pressed into the installation hole in the threaded bushing. The utility model has a simple structure, convenient operation, stable components, and anti - detachment during transportation, and plays a role in adjusting the tolerance between the instrument panel bracket and the firewall.

[0004] However, in the above - mentioned technology, the threaded bushing and the gasket that play a supporting and adjusting role are of a split - type structure. The processing precision and assembly precision required for these two parts of the split - type structure are relatively high, which increases the overall processing cost of the tolerance compensation fastening device. Summary of the Invention

[0005] In view of the above - mentioned disadvantages of the prior art, the purpose of the utility model is to provide an automatic tolerance adjusting part for fixing an instrument panel bracket to solve the difficulties of the prior art.

[0006] To achieve the above - mentioned purpose and other related purposes, the utility model provides an automatic tolerance adjusting part for fixing an instrument panel bracket, including:

[0007] An anti - detachment clamping seat 1, the bottom of the anti - detachment clamping seat 1 is a sheet - metal positioning groove support and fixing structure 11 on the left and right or front and back sides;

[0008] A locking nut 2, the locking nut 2 is clamped in the nut limiting groove 12 in the anti - detachment clamping seat 1;

[0009] An integrated metal adjusting part 3, the integrated metal adjusting part 3 is threadedly fitted through the center of the locking nut 2, and one side of the integrated metal adjusting part 3 contacts the stop block 14 on one side of the top of the anti - detachment clamping seat 1;

[0010] The friction element 4 is clamped in the through hole 31 in the center of the top of the integrated metal adjusting part 3.

[0011] Furthermore, the sheet metal positioning groove support and fixing structure 11 is clamped in the positioning groove on the dashboard bracket sheet metal. One side of the vertically downward side of the sheet metal positioning groove support and fixing structure 11 abuts against one side wall of the positioning groove, and the other side bent outward of the sheet metal positioning groove support and fixing structure 11 abuts against the other side wall of the positioning groove.

[0012] In this technical solution, the sheet metal positioning groove support and fixing structure 11 at the bottom of the anti - detachment clamp 1 is used for being clamped on the dashboard bracket sheet metal. The center of the anti - detachment clamp 1 is used for clamping the lock nut 2 to limit and stop the lock nut 2. The stop block 14 on one side of the top of the anti - detachment clamp 1 contacts the integrated metal adjusting part 3 in the lock nut 2, and plays a certain anti - rotation torque when the top of the integrated metal adjusting part 3 abuts against the vehicle body sheet metal.

[0013] According to the preferred solution, the sheet metal positioning groove support and fixing structure 11 includes:

[0014] The vertical positioning plate 111, the top of the vertical positioning plate 111 is located on the outer side walls of the left - right or front - back sides at the bottom of the anti - detachment clamp 1, and the bottom of the vertical positioning plate 111 extends vertically downward away from the anti - detachment clamp 1;

[0015] The relief groove 112, the top of the relief groove 112 is opened on one side of the top of the vertical positioning plate 111 away from the anti - detachment clamp 1, the bottom of the relief groove 112 extends vertically downward along the anti - detachment clamp 1, and the depth of the relief groove 112 is less than the height of the vertical positioning plate 111;

[0016] The support and limit hook 113, the bottom of the support and limit hook 113 is arranged on the bottom side wall of the bottom end of the relief groove 112, and the top of the support and limit hook 113 is bent obliquely upward away from the anti - detachment clamp 1.

[0017] Furthermore, the anti - detachment clamp 1 and the support and limit hook 113 are of an integral structure.

[0018] In this technical solution, when the sheet metal positioning groove support and fixing structure 11 is actually used, the side of the vertical positioning plate 111 close to the anti - detachment clamp 1 is inserted along one side wall of the positioning groove in the dashboard bracket sheet metal. During the insertion process, the support and limit hook 113 will contact the other side wall of the positioning groove in the bracket sheet metal, and the bottom of the support and limit hook 113 will deform and fold back towards the relief groove 112, and then deform and rebound so that the top of the support and limit hook 113 abuts against the other side wall of the positioning groove in the bracket sheet metal.

[0019] According to the preferred solution, the anti - detachment clamp 1 includes:

[0020] Nut limiting groove 12, the nut limiting groove 12 is opened in the center of the anti - detachment clamping seat 1, and the nut limiting groove 12 is a polygonal groove with multiple stop surfaces around it;

[0021] Nut stop claws 13, several nut stop claws 13 are provided, several nut stop claws 13 are located around the top of the anti - detachment clamping seat 1, the top of the nut stop claws 13 is bent towards the central axis direction of the nut limiting groove 12, and the claw head at the top of the nut stop claws 13 abuts against the top of the polygonal end 22 in the locking nut 2;

[0022] Stop block 14, the bottom of the stop block 14 is arranged on one side of the top of the anti - detachment clamping seat 1, the stop block 14 is located between two nut stop claws 13, and the top of the stop block 14 extends vertically upwards.

[0023] In this technical solution, the nut limiting groove 12 is a structure in the center of the anti - detachment clamping seat 1, and the nut stop claws 13 and the stop block 14 are structures on the top of the anti - detachment clamping seat 1. During assembly, the locking nut 2 is inserted from the bottom of the anti - detachment clamping seat 1. The outer side wall of the polygonal end 22 at the bottom of the locking nut 2 is in close contact with the stop surface of the nut limiting groove 12, and the top of the polygonal end 22 in the middle section of the locking nut 2 is abutted and limited by the claw head of the nut stop claws 13.

[0024] According to the preferred solution, a threaded hole 21 is opened in the center of the locking nut 2. The bottom of the integrated metal adjusting part 3 is a polygonal end 22 and the top is a cylindrical end 23. The outer side wall of the polygonal end 22 is in contact with the stop surface of the nut limiting groove 12.

[0025] According to the preferred solution, the outer diameter of the cylindrical end 23 is smaller than the minimum outer diameter of the polygonal end 22.

[0026] Furthermore, when the locking nut 2 is installed, its bottom will contact the sheet metal surface of the instrument panel bracket. The minimum outer diameter of the polygonal end 22 in the integrated metal adjusting part 3 is larger than the outer diameter of the cylindrical end 23, which will form a stepped surface between the top of the polygonal end 22 and the cylindrical end 23 in the integrated metal adjusting part 3. This stepped surface will be abutted by the claw head of the nut stop claws 13 to limit the integrated metal adjusting part 3.

[0027] According to the preferred solution, a through - hole 31 is opened in the center of the integrated metal adjusting part 3. The through - hole 31 is divided into two sections. The top is a friction element installation section 32, and the bottom is a screw positioning section 33. The inner diameter of the friction element installation section 32 is larger than the inner diameter of the screw positioning section 33. The top of the integrated metal adjusting part 3 is a sheet metal support end 34 and the bottom is an up - and - down moving cylindrical end 35. The sheet metal support end 34 is polygonal. One side wall of the sheet metal support end 34 is in contact with the stop block 14. The up - and - down moving cylindrical end 35 is clamped in the threaded hole 21 through the left - hand external thread 36 provided on its outer contour.

[0028] Furthermore, the integrated metal adjusting member 3 is extruded and formed in one step by a cold heading process, and the processing cost is low.

[0029] In the present technical solution, the upper section of the through hole 31 in the center of the integrated metal adjusting part 3 is the friction element mounting section 32, and the lower section is the screw positioning section 33. The inner diameter of the friction element mounting section 32 is larger than the inner diameter of the screw positioning section 33, which will form a step surface between the friction element mounting section 32 and the screw positioning section 33 for placing the friction element 4. The sheet metal support end 34 at the top of the integrated metal adjusting part 3 is a polygon, and the outer side wall of the polygon has multiple faces, all of which can be in contact with and fit the stop block 14 to generate a certain anti-rotation torque.

[0030] According to a preferred embodiment, the friction element 4 is arranged in the friction element mounting section 32, the friction element 4 is in a circular ring shape, and bolt clamping plates 41 are arranged around the bottom of the friction element 4, and the bolt clamping plates 41 are bent toward the central axis direction of the friction element mounting section 32, and an integrated metal adjustment part friction plate 42 is arranged on the top of the friction element 4, and the integrated metal adjustment part friction plate 42 is bent toward the hole wall direction of the friction element mounting section 32.

[0031] Furthermore, during installation, the installation bolt enters the friction element 4, which will stretch the friction element 4 so that the integrated metal adjustment component friction plate 42 presses against the hole wall of the friction element installation section 32, and the installation bolt is clamped by the bolt clamping plate 41. When the installation bolt rotates, the friction element will rotate along with it and further drive the integrated metal adjustment component 3 to rotate.

[0032] The utility model adopts an anti-dropping socket, a locking nut, an integrated metal adjusting part and a friction element, wherein the integrated metal adjusting part structure can be formed by cold heading at one time with low cost. In actual use, the first step is to insert the assembled automatic tolerance adjusting part into the sheet metal positioning groove of the instrument panel bracket, and fix it by supporting the fixing structure of the sheet metal positioning groove. Then, the mounting bolt is inserted into the body panel and started to be screwed clockwise, thereby driving the friction element to rotate, and then driving the integrated metal adjusting part to rotate. Since the external thread of the integrated metal adjusting part is left-handed, the integrated metal adjusting part will rise until the sheet metal support end hits the sheet metal of the body, and the screws are continuously tightened until they can no longer be screwed, thereby achieving the effect of adjusting and supporting the sheet metal of the instrument panel bracket and the sheet metal of the body in the vehicle.

[0033] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0035] Figure 2 Shown as the mid-section schematic diagram of the present utility model;

[0036] Figure 3 Shown as the schematic diagram of the dashboard bracket sheet metal and the body sheet metal of the present utility model;

[0037] Figure 4 Shown as the mid-section schematic diagram during the specific installation of the present utility model;

[0038] Figure 5 Shown as the enlarged structural schematic diagram of the anti-disengagement card seat of the present utility model;

[0039] Figure 6 Shown as the enlarged structural schematic diagram of the locking nut of the present utility model;

[0040] Figure 7 Shown as the enlarged structural schematic diagram of the integrated metal adjusting member of the present utility model;

[0041] Figure 8 Shown as the mid-section structural schematic diagram of the integrated metal adjusting member of the present utility model;

[0042] Figure 9 Shown as the enlarged structural schematic diagram of the friction element of the present utility model;

[0043] Figure 10 Shown as the explosion diagram of the present utility model;

[0044] Label description

[0045] 1. Anti-disengagement card seat;

[0046] 11. Sheet metal positioning groove support and fixing structure;

[0047] 111. Vertical positioning plate;

[0048] 112. Relief groove;

[0049] 113. Support and limit hook;

[0050] 12. Nut limit groove;

[0051] 13. Nut stop claw;

[0052] 14. Stop block;

[0053] 2. Locking nut;

[0054] 21. Threaded hole;

[0055] 22. Polygonal end;

[0056] 23. Cylindrical end;

[0057] 3. Integrated metal adjuster;

[0058] 31. Through hole;

[0059] 32. Friction element mounting section;

[0060] 33. Screw positioning section;

[0061] 34. Sheet metal support end;

[0062] 35. Up and down moving cylindrical end;

[0063] 36. Left-handed external thread;

[0064] 4. Friction element;

[0065] 41. Bolt clamping piece;

[0066] 42. Friction plate of integrated metal adjuster; Detailed implementation manners

[0067] In order to make the objectives, technical solutions and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present utility model. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0068] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the scope of protection of the present utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0069] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this utility model pertains. The terms "first", "second" and similar terms used in the specification and claims of this utility model patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not necessarily denote a quantity limitation. Terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0070] The present utility model provides an automatic tolerance adjusting member for fixing a dashboard bracket, which is used in the installation process between the dashboard bracket and the vehicle body. The present utility model does not limit the types and materials of the dashboard bracket and the vehicle body to be fixed.

[0071] Generally speaking, the automatic tolerance adjusting member for fixing a dashboard bracket proposed by the present utility model mainly includes: an anti - detachment clamping seat 1, a locking nut 2, an integrated metal adjusting member 3 and a friction element 4. Among them, reference can be made to Figure 1 , which shows the layout relationship of the anti - detachment clamping seat 1, the locking nut 2, the integrated metal adjusting member 3 and the friction element 4.

[0072] Embodiment 1: When the automatic tolerance adjusting member for fixing a dashboard bracket proposed by the present utility model is actually working, the vertical positioning plate 111 in the bottom sheet metal positioning groove support fixing structure 11 of the assembled automatic tolerance adjusting member for fixing a dashboard bracket as shown in Figure 1 is supported and fixed as shown in Figure 2Insert vertically downward along one side wall of the positioning groove on the sheet metal of the fixed instrument panel bracket, so that the top of the support limit hook 113 in the sheet metal positioning groove support and fixing structure 11 abuts against the side wall on the other side in the positioning groove on the bracket sheet metal, align the through hole 31 of the integrated metal adjusting part 3 with the threaded hole on the welding nut on the sheet metal of the fixed instrument panel bracket, complete the installation and positioning of the automatic tolerance adjusting part on the fixed instrument panel bracket. Insert the installation bolt into the threaded hole on the body sheet metal. The bottom of the installation bolt enters the friction element installation section 32, passes through and expands the friction element 4, and passes out from the screw positioning section 33 to be connected to the welding nut on the sheet metal of the fixed instrument panel bracket. Rotate the installation bolt clockwise. The installation bolt drives the friction element 4 to rotate, and then drives the integrated metal adjusting part 3 to rotate. Because the outer side of the integrated metal adjusting part 3 is a left-handed external thread 36, the integrated metal adjusting part 3 will rise until the sheet metal support end 34 abuts against the sheet metal on the other side of the customer. Continue to tighten the installation bolt until it cannot be rotated, then the effect of adjusting and supporting the sheet metal of the in-vehicle instrument panel bracket and the body sheet metal can be achieved.

[0073] In order to solve the problem of high processing cost of the split structure of the threaded bushing and gasket for the support and adjustment function in the background technology. Therefore, in the technical solution provided in this embodiment, the integrated metal adjusting part 3 uses the cold heading process, which can be formed in one step with low processing cost. And the scheme of using convex points to prevent unscrewing in the adjusting part of the existing technology, which is difficult to complete in the cold heading process, is changed to a polyhedron anti-unscrewing scheme. A stop block 14 is arranged in the anti-disengagement clamp seat 1, and the sheet metal support end 34 at the top of the integrated metal adjusting part 3 is set as a polygon. Each surface around the sheet metal support end 34 can fit with the stop block 14 to generate a certain anti-rotation torque.

[0074] The above-mentioned sheet metal positioning groove support and fixation structure 11 is located on the left and right or front and back sides of the bottom of the anti-detachment clamping seat 1. The sheet metal positioning groove support and fixation structure 11 includes: a vertical positioning plate 111, a relief groove 112, and a support and limit hook 113. Among them, the top of the vertical positioning plate 111 is located on the outer side walls of the left and right or front and back sides of the bottom of the anti-detachment clamping seat 1. The bottom of the vertical positioning plate 111 extends vertically downward away from the anti-detachment clamping seat 1. A relief groove 112 is opened on one side of the top of the vertical positioning plate 111 away from the anti-detachment clamping seat 1. The bottom of the relief groove 112 extends vertically downward along the anti-detachment clamping seat 1. The depth of the relief groove 112 is less than the height of the vertical positioning plate 111 to prevent the relief groove 112 from passing through the anti-detachment clamping seat 1, so that the bottom of the support and limit hook 113 is arranged at the bottom of the relief groove 112 instead of the groove side wall, improving the structural strength of the support and limit hook 113. The bottom of the support and limit hook 113 is arranged on the bottom groove side wall of the relief groove 112. The top of the support and limit hook 113 is bent obliquely upward toward the side away from the anti-detachment clamping seat 1. The anti-detachment clamping seat 1 and the support and limit hook 113 are of an integral structure, and the whole can be integrally formed by injection molding. During actual use, the sheet metal positioning groove support and fixation structure 11 is inserted into the inner side wall of the positioning groove on the dashboard bracket sheet metal along the side close to the anti-detachment clamping seat 1. During the insertion process, the support and limit hook 113 will contact the inner side wall of the positioning groove on the bracket sheet metal. The bottom of the support and limit hook 113 will deform and fold back toward the relief groove 112, and then deform and rebound to make the top of the support and limit hook 113 abut against the inner side wall of the positioning groove on the bracket sheet metal.

[0075] The above-mentioned sheet metal positioning groove support and fixation structure 11 at the bottom of the anti-detachment clamping seat 1 is used for clamping on the dashboard bracket sheet metal. A nut limiting groove 12 is opened in the center of the anti-detachment clamping seat 1 for clamping a locking nut 2. Several nut retaining claws 13 are arranged around the top of the anti-detachment clamping seat 1. The top of the nut retaining claws 13 is bent toward the central axis direction of the nut limiting groove 12. The top claw heads of the nut retaining claws 13 abut against the top of the polygonal end 22 in the locking nut 2. When the locking nut 2 is inserted from the bottom of the anti-detachment clamping seat 1 during assembly, the outer side wall of the polygonal end 22 at the bottom of the locking nut 2 is in close contact with the retaining surface of the nut limiting groove 12. The top of the polygonal end 22 in the middle section of the locking nut 2 is abutted and limited by the claw heads of the nut retaining claws 13. A retaining block 14 is arranged between two nut retaining claws 13 on one side of the top of the anti-detachment clamping seat 1. The top of the retaining block 14 extends vertically upward to contact the integral metal adjusting part 3 in the locking nut 2, playing a certain anti-rotation torque when the top of the integral metal adjusting part 3 abuts against the vehicle body sheet metal.

[0076] The above-mentioned locking nut 2 is clamped in the nut limiting groove 12 in the anti-dropping socket 1, and a threaded hole 21 is opened in the center of the locking nut 2. The bottom of the integrated metal adjusting part 3 is a polygonal end 22 and the top is a cylindrical end 23. The outer wall of the polygonal end 22 fits with the stop surface of the nut limiting groove 12, and the outer diameter of the cylindrical end 23 is smaller than the minimum outer diameter of the polygonal end 22. When the locking nut 2 is installed, the bottom will contact the sheet metal surface of the instrument panel bracket. The minimum outer diameter of the polygonal end 22 in the integrated metal adjusting part 3 is larger than the outer diameter of the cylindrical end 23, which will form a step surface between the top of the polygonal end 22 and the cylindrical end 23 in the integrated metal adjusting part 3, and the step surface will be pressed by the claw head of the nut stopping claw 13 to limit the integrated metal adjusting part 3.

[0077] The above-mentioned integrated metal adjusting part 3 is threadedly fitted in the middle of the locking nut 2, one side of the integrated metal adjusting part 3 is in contact with the stop block 14 on the top side of the anti-dropout holder 1, a through hole 31 is opened in the middle of the integrated metal adjusting part 3, the through hole 31 is divided into two sections, the top is a friction element mounting section 32, the bottom is a screw positioning section 33, the inner diameter of the friction element mounting section 32 is larger than the inner diameter of the screw positioning section 33, the top of the integrated metal adjusting part 3 is a sheet metal support end 34, and the bottom is an up and down moving cylindrical end 35, the sheet metal support end 34 is polygonal, and the side wall of one side of the sheet metal support end 34 is in contact with the stop block 14 The cylindrical end 35 that moves up and down is clamped in the threaded hole 21 through the left-handed external thread 36 set in the outer contour. The upper section of the through hole 31 in the middle of the integrated metal adjusting part 3 is the friction element mounting section 32 and the lower section is the screw positioning section 33. The inner diameter of the friction element mounting section 32 is larger than the inner diameter of the screw positioning section 33, which will form a step surface between the friction element mounting section 32 and the screw positioning section 33 for placing the friction element 4. The sheet metal support end 34 at the top of the integrated metal adjusting part 3 is a polygon, and the outer side wall of the polygon has multiple faces, which can contact and fit with the stop block 14 to generate a certain anti-rotation torque.

[0078] The above-mentioned friction element 4 is clamped in the friction element mounting section 32 at the top of the through hole 31 in the middle of the top of the integrated metal adjusting part 3. The friction element 4 is annular, and bolt clamping plates 41 are arranged around the bottom of the friction element 4. The bolt clamping plates 41 are bent toward the central axis direction of the friction element mounting section 32. An integrated metal adjusting part friction plate 42 is arranged on the top of the friction element 4. The integrated metal adjusting part friction plate 42 is bent toward the hole wall direction of the friction element mounting section 32. During installation, the installation bolt enters the friction element 4, which will stretch the friction element 4 so that the integrated metal adjusting part friction plate 42 will press against the hole wall of the friction element mounting section 32, and the installation bolt will be clamped and locked by the bolt clamping plate 41. When the installation bolt rotates, the friction element will rotate accordingly and further drive the integrated metal adjusting part 3 to rotate.

[0079] The above embodiments are only illustrative of the principles and effects of the present utility model and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. An automatic tolerance adjusting part for fixing an instrument panel bracket, characterized in that Comprising: An anti - detachment card seat (1), the left - right or front - rear sides of the bottom of the anti - detachment card seat (1) being a sheet - metal positioning groove support and fixation structure (11); A locking nut (2), the locking nut (2) being clamped in a nut limiting groove (12) in the anti - detachment card seat (1); An integrated metal adjusting part (3), the integrated metal adjusting part (3) being threadedly fitted through the center of the locking nut (2), one side of the integrated metal adjusting part (3) being in contact with a stop block (14) on one side of the top of the anti - detachment card seat (1); A friction element (4), the friction element (4) being clamped in a through - hole (31) in the center of the top of the integrated metal adjusting part (3).

2. The automatic tolerance adjusting part for fixing the dashboard bracket according to claim 1, characterized in that, The sheet - metal positioning groove support and fixation structure (11) includes: A vertical positioning plate (111), the top of the vertical positioning plate (111) being located on the outer side walls of the left - right or front - rear sides of the bottom of the anti - detachment card seat (1), and the bottom of the vertical positioning plate (111) extending vertically downward away from the anti - detachment card seat (1); A relief groove (112), the top of the relief groove (112) being opened on one side of the top of the vertical positioning plate (111) away from the anti - detachment card seat (1), the bottom of the relief groove (112) extending vertically downward along the anti - detachment card seat (1), and the depth of the relief groove (112) being less than the height of the vertical positioning plate (111); A support and limit hook (113), the bottom of the support and limit hook (113) being arranged on the bottom side wall of the bottom end of the relief groove (112), and the top of the support and limit hook (113) being bent obliquely upward away from the anti - detachment card seat (1).

3. The automatic tolerance adjusting part for fixing the dashboard bracket according to claim 2, characterized in that, The anti - detachment card seat (1) includes: A nut limiting groove (12), the nut limiting groove (12) being opened in the center of the anti - detachment card seat (1), the nut limiting groove (12) being a polygon groove with multiple stop surfaces around; Nut stop claws (13), several nut stop claws (13) being arranged, several nut stop claws (13) being located around the top end of the anti - detachment card seat (1), the top of the nut stop claws (13) being bent towards the central axis of the nut limiting groove (12), and the top claw heads of the nut stop claws (13) abutting against the top of a polygon end (22) in the locking nut (2); A stop block (14), the bottom of the stop block (14) being arranged on one side of the top of the anti - detachment card seat (1), the stop block (14) being located between two nut stop claws (13), and the top of the stop block (14) extending vertically upward.

4. The automatic tolerance adjusting part for fixing the dashboard bracket according to claim 3, characterized in that A threaded hole (21) is opened in the center of the locking nut (2), the bottom of the locking nut (2) being a polygon end (22) and the top being a cylindrical end (23), and the outer side wall of the polygon end (22) being in contact with the stop surfaces of the nut limiting groove (12).

5. The automatic tolerance adjusting part for fixing the instrument panel bracket according to claim 4, characterized in that, The outer diameter of the cylindrical end (23) is smaller than the minimum outer diameter of the polygon end (22).

6. The automatic tolerance adjusting part for fixing the dashboard bracket according to claim 5, characterized in that, A through hole (31) is provided in the center of the integrated metal adjusting member (3). The through hole (31) is divided into two sections. The top is the friction element installation section (32), and the bottom is the screw positioning section (33). The inner diameter of the friction element installation section (32) is larger than that of the screw positioning section (33). The top of the integrated metal adjusting member (3) is the sheet metal support end (34), and the bottom is the vertically movable cylindrical end (35). The sheet metal support end (34) is polygonal. One side wall of the sheet metal support end (34) contacts the stop block (14). The vertically movable cylindrical end (35) is clamped in the threaded hole (21) through the left-handed external thread (36) provided on the outer contour.

7. The automatic tolerance adjusting part for fixing the dashboard bracket according to claim 6, characterized in that, The friction element (4) is arranged in the friction element installation section (32). The friction element (4) is annular. Bolt holding pieces (41) are arranged around the bottom of the friction element (4). The bolt holding pieces (41) are bent towards the central axis direction of the friction element installation section (32). An integrated metal adjusting member friction plate (42) is arranged on the top of the friction element (4). The integrated metal adjusting member friction plate (42) is bent towards the hole wall direction of the friction element installation section (32).

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