Instrument panel extension bracket mounting structure and vehicle

Abstract

The application provides a mounting structure of an instrument panel extension support and a vehicle, and belongs to the technical field of automobile accessories. The mounting structure comprises an instrument panel framework, a pull-rivet nut and an extension support. The instrument panel framework is provided with a polygonal mounting hole. The pull-rivet nut is mounted on the polygonal mounting hole. The pull-rivet nut has a polygonal anti-rotation section matched with the polygonal mounting hole, an internally-threaded connecting section passing through the polygonal mounting hole, and a first anti-extraction flange and a second anti-extraction flange formed at two ends of the polygonal anti-rotation section. The instrument panel framework is limited between the first anti-extraction flange and the second anti-extraction flange. The connecting end of the extension support is threadedly connected with the internally-threaded connecting section of the pull-rivet nut through the polygonal anti-rotation section of the pull-rivet nut. The pull-rivet nut is used on the instrument panel framework to replace the embedded nut, which not only saves the high mold development cost, but also avoids the large amount of time consumed by mold development, significantly reduces the comprehensive cost of modification, and greatly shortens the modification period of the vehicle model.

Description

Technical Field

[0001] This application belongs to the field of automotive parts technology, and more specifically, relates to an installation structure and vehicle for an instrument panel extension bracket. Background Technology

[0002] The instrument panel extension bracket (also known as the instrument panel extension bracket / additional bracket) is an important auxiliary load-bearing structure for the instrument panel assembly. It is mainly installed at the connection between the instrument panel body and the body sheet metal, as well as at the key stress points of the instrument panel functional modules.

[0003] The main function of the dashboard extension bracket is to enhance the structural rigidity and stability of the dashboard and to bear the additional load of the functional modules. The dashboard body is mostly made of plastic, which has limited load-bearing and deformation resistance. The extension bracket, through rigid connection with the body sheet metal, distributes the force of the dashboard to the body frame, preventing the dashboard from deforming, loosening or making abnormal noises due to long-term use, vibration or external force (such as passengers leaning on it). For heavy functional components integrated on the dashboard, such as large central control screen, head-up display (HUD) module, car refrigerator, storage box, etc., the extension bracket can serve as a dedicated load-bearing structure to directly bear the weight of these modules and prevent the dashboard body from cracking or sinking due to excessive local load.

[0004] Currently, nuts are typically embedded during the injection molding process of the dashboard frame, and the dashboard extension bracket is connected to the dashboard body via bolts. For facelifted models or when an extension bracket needs to be added, a new dashboard frame mold needs to be developed, which is costly, time-consuming, and detrimental to reducing modification costs. Utility Model Content

[0005] The purpose of this application is to provide an installation structure and vehicle for an instrument panel extension bracket, which aims to solve the problem that when installing an extension bracket by embedding nuts on the instrument panel frame, adding an extension bracket requires the development of new molds, resulting in high modification costs and long cycles when facing face-up / modified vehicles.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A mounting structure for an instrument panel extension bracket is provided, comprising: an instrument panel frame, a rivet nut, and an extension bracket. The instrument panel frame is provided with a polygonal mounting hole; the rivet nut is mounted on the polygonal mounting hole; the rivet nut has a polygonal anti-rotation section adapted to the polygonal mounting hole, an internally threaded connecting section passing through the polygonal mounting hole, and a first anti-disengagement retaining ring and a second anti-disengagement retaining ring formed at both ends of the polygonal anti-rotation section; the instrument panel frame is limited between the first anti-disengagement retaining ring and the second anti-disengagement retaining ring; the connecting end of the extension bracket passes through the polygonal anti-rotation section of the rivet nut and is threadedly connected to the internally threaded connecting section.

[0007] The beneficial effects of the instrument panel extension bracket mounting structure provided in this application are as follows: Compared with the prior art, the mounting structure of the instrument panel extension bracket in this application uses rivet nuts instead of the traditional method of embedding nuts during the injection molding of the instrument panel frame. When a model or modified vehicle needs to add or remove an extension bracket, it is not necessary to redevelop the entire instrument panel frame mold. Only appropriate polygonal mounting holes need to be opened at the corresponding positions on the instrument panel frame, the rivet nuts are then inserted into the polygonal mounting holes, and the rivet nuts are fixed to the instrument panel frame by using a rivet tool. This not only saves the high cost of mold development but also avoids the large amount of time spent on mold development, significantly reducing the overall cost of modification. At the same time, it greatly shortens the project cycle of model modification or bracket modification and improves product iteration efficiency.

[0008] The polygonal anti-rotation section of the rivet nut is matched with the polygonal mounting holes of the instrument panel frame, effectively preventing the rivet nut from rotating under load and avoiding loosening of the connection between the extension bracket and the rivet nut. The instrument panel frame is restrained between the first and second anti-disengagement rings of the rivet nut; this double-restraint structure firmly fixes the position of the rivet nut, preventing displacement or detachment in the vibration environment of vehicle operation. The threaded connection between the extension bracket and the rivet nut further ensures a tight connection, guaranteeing that the extension bracket can stably bear the load of the instrument panel functional modules and effectively transfer and distribute the force on the instrument panel, ensuring its core role in strengthening structural rigidity.

[0009] It should be noted that although rivet nuts and their installation methods are conventional techniques, using rivet nuts for installation of extension brackets on dashboards is not a conventional technique. This application uses rivet nuts for installation of extension brackets, which only requires drilling corresponding mounting holes in the dashboard frame. After passing the rivet nut through the mounting hole, a special rivet tool can be used to pull out the internal thread and limit the rivet nut to the dashboard frame. There is no need to tap the internal thread or weld the nut. The riveting is firm, efficient, and easy to use. It can solve the problem that when adding extension brackets to modified / modified vehicles, it is necessary to develop new molds, resulting in high modification costs and long cycles.

[0010] In conjunction with the first aspect, in one possible implementation, the polygonal anti-rotation segment is provided with a through hole coaxial with the internal thread hole of the internal thread connection segment; the diameter of the through hole is larger than that of the internal thread hole, so that the connecting end of the expansion bracket is clearance-fitted with the through hole.

[0011] In the above technical solution, the first anti-detachment retaining ring and the second anti-detachment retaining ring are formed when the rivet nut is installed by the rivet tool. This can achieve a reliable connection between the rivet nut and the instrument panel frame, and avoid the risk of the rivet nut coming out of the polygonal mounting hole, which would lead to the failure of the expansion bracket installation.

[0012] In conjunction with the first aspect, in one possible implementation, the diameter of the first anti-detachment ring is larger than the diameter of the second anti-detachment ring; the first anti-detachment ring is attached to the surface of the instrument panel frame away from the internal threaded connection section; and the second anti-detachment ring is attached to the surface of the instrument panel frame close to the internal threaded connection section.

[0013] In conjunction with the first aspect, in one possible implementation, the first anti-detachment ring has a reinforcing rib on the side facing the instrument panel frame, the reinforcing rib being formed at the junction of the first anti-detachment ring and the polygonal anti-rotation segment.

[0014] In the above technical solution, the reinforcing rib is placed at this critical connection position. By increasing the thickness and rigidity of the local structure, the stress at the connection point is dispersed, preventing warping and deformation of this part due to long-term stress. At the same time, the reinforcing rib can improve the overall impact resistance of the first anti-loosening retaining ring. Even if the vehicle encounters bumps during driving, causing instantaneous impact loads on the extension bracket, it can prevent the retaining ring from being damaged due to sudden changes in force, ensuring the long-term reliability of the rivet nut.

[0015] In conjunction with the first aspect, in one possible implementation, the reinforcing ribs are uniformly distributed circumferentially along the polygonal anti-rotation segment. This achieves uniform circumferential force distribution, eliminates local stress concentration, and ensures the long-term reliability of the rivet nut.

[0016] In conjunction with the first aspect, in one possible implementation, the reinforcing rib is triangular in shape.

[0017] In the above technical solution, the triangular reinforcing rib has its own structural stability, which can improve the strength of the rivet nut, effectively resist the deformation caused by external forces, avoid the reinforcing rib itself from breaking or warping, and thus ensure the structural integrity of the connection between the first anti-loosening retaining ring and the polygonal anti-rotation section, and extend the service life of the rivet nut.

[0018] In conjunction with the first aspect, in one possible implementation, the outer surface of the end of the internally threaded connection segment is provided with a conical guide surface.

[0019] In the above technical solution, the conical guide surface reduces the difficulty of installing the rivet nut. When the connecting end of the extension bracket approaches the internal threaded connecting section, even if there is a slight coaxiality deviation at the connecting end, it will be guided by the inclined surface of the conical guide surface, automatically correcting its position and sliding into the internal threaded hole. This design significantly reduces the alignment accuracy requirements during assembly, and is especially suitable for assembly scenarios where the view inside the instrument panel is obstructed and the operating space is limited, reducing the time spent repeatedly adjusting the bolt position.

[0020] In conjunction with the first aspect, in one possible implementation, the outer surface shape of the polygonal anti-rotation segment is a regular quadrilateral, a regular pentagon, or a regular hexagon.

[0021] In the above technical solution, by setting a polygonal outer surface to fit the polygonal mounting holes on the instrument panel frame, the rivet nut can be prevented from rotating circumferentially within the mounting holes, thereby ensuring the positional reliability of the expansion bracket after installation.

[0022] In conjunction with the first aspect, in one possible implementation, the end of the connecting end of the extension bracket is exposed outside the internally threaded connecting section.

[0023] In the above technical solution, the connecting end of the extension bracket extends outside the internal thread connecting section, which means that the engagement length between the connecting end and the internal thread connecting section is within a controllable and reasonable range. This ensures sufficient thread engagement area to bear the load, and also allows confirmation of whether the bolt is fully tightened through the exposed end, preventing overload of the thread profile due to excessive bolt insertion or insufficient preload due to insufficient insertion.

[0024] Secondly, embodiments of this application also provide a vehicle including the mounting structure of the aforementioned dashboard extension bracket.

[0025] The vehicle provided in this application uses rivet nuts instead of embedded nuts on the dashboard frame, which not only saves the high cost of mold development, but also avoids the large amount of time spent on mold development, significantly reducing the overall cost of modification, while greatly shortening the project cycle of model facelift or modification and improving product iteration efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural diagram of the mounting structure of the instrument panel expansion bracket provided in the embodiments of this application; Figure 2 A top view of the mounting structure of the instrument panel extension bracket provided in an embodiment of this application; Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle; Figure 4 This is a schematic diagram of the structure of the instrument panel extension bracket and rivet nut provided in the embodiments of this application; Figure 5 For along Figure 4 Cross-sectional view of the middle BB line; Figure 6 This is a three-dimensional structural diagram of the rivet nut provided in the embodiments of this application; Figure 7 This is a schematic diagram of the main structure of the rivet nut provided in the embodiment of this application; Figure 8 For along Figure 7 Cross-sectional view of the CC line.

[0028] In the diagram: 1. Extension bracket; 2. Instrument panel frame; 3. Decorative panel; 4. Rivet nut; 41. First anti-disengagement ring; 42. Polygonal anti-rotation section; 43. Second anti-disengagement ring; 44. Internal threaded connection section; 45. Conical guide surface; 46. Reinforcing rib. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0032] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", the bottom of the vehicle represents "down", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the driver's cab.

[0033] In addition, the front-rear direction of the vehicle body as defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body as defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body as defined refers to the up-down direction of the vehicle's forward direction during driving.

[0034] Please refer to the following: Figures 1 to 8 The mounting structure of the instrument panel extension bracket provided in this application is now described. The mounting structure of the instrument panel extension bracket includes an instrument panel frame 2, a rivet nut 4, and an extension bracket 1. The instrument panel frame 2 is provided with a polygonal mounting hole; the rivet nut 4 is mounted on the polygonal mounting hole; the rivet nut 4 has a polygonal anti-rotation section 42 adapted to the polygonal mounting hole, an internally threaded connecting section 44 passing through the polygonal mounting hole, and a first anti-disengagement retaining ring 41 and a second anti-disengagement retaining ring 43 formed at both ends of the polygonal anti-rotation section 42; the instrument panel frame 2 is limited between the first anti-disengagement retaining ring 41 and the second anti-disengagement retaining ring 43; the connecting end of the extension bracket 1 passes through the polygonal anti-rotation section 42 of the rivet nut 4 and is threadedly connected to the internally threaded connecting section 44.

[0035] The beneficial effects of the installation structure of the dashboard extension bracket 1 provided in this application are as follows: Compared with the prior art, the installation structure of the dashboard extension bracket 1 in this application uses a rivet nut 4 instead of the traditional method of embedding nuts during the injection molding of the dashboard frame 2. When a model or modified vehicle needs to add or remove the extension bracket 1, it is not necessary to redevelop the entire dashboard frame 2 mold. Only appropriate polygonal mounting holes need to be opened at the corresponding positions of the dashboard frame 2, and then the rivet nut 4 is passed through the polygonal mounting holes. Then, the rivet nut 4 is fixed to the dashboard frame 2 by using a rivet tool. This not only saves the high cost of mold development, but also avoids the large amount of time spent on mold development, significantly reducing the overall cost of modification, and greatly shortening the project cycle of model modification or bracket modification, thus improving product iteration efficiency.

[0036] The polygonal anti-rotation section 42 of the rivet nut 4 is compatible with the polygonal mounting hole of the instrument panel frame 2, which can effectively prevent the rivet nut 4 from rotating under force, thus avoiding loosening of the connection between the extension bracket 1 and the rivet nut 4. The instrument panel frame 2 is limited between the first anti-disengagement ring and the second anti-disengagement ring 43 of the rivet nut 4. This double limiting structure can firmly fix the position of the rivet nut 4, preventing displacement or falling off in the vibration environment of vehicle driving. The threaded connection section 44 between the extension bracket 1 and the rivet nut 4 further ensures the tightness of the connection, ensuring that the extension bracket 1 can stably bear the load of the instrument panel functional modules, and effectively transmit and distribute the force of the instrument panel, ensuring its core role in strengthening the structural rigidity.

[0037] It should be noted that although the rivet nut 4 and its installation method are conventional technical means, using the rivet nut 4 for installation on the instrument panel extension bracket 1 is not a conventional technical means. The present application uses the rivet nut 4 for the installation of the extension bracket 1, which only requires opening corresponding mounting holes on the instrument panel frame 2. After passing the rivet nut 4 through the mounting hole, the internal thread can be pulled out using a special rivet tool, and the rivet nut 4 is limited on the instrument panel frame 2. There is no need to tap the internal thread or weld the nut. The riveting is firm, efficient, and easy to use. It can solve the problem that when adding the extension bracket 1 to a modified car, it is necessary to redevelop the mold, resulting in high modification costs and long cycle.

[0038] The installation process of rivet nut 4 is illustrated below: Installing rivet nut 4 usually requires the use of a special rivet gun or similar tool, which uses mechanical force to deform the nut and fasten it to the workpiece.

[0039] Before starting installation, ensure that the tools match the rivet nut size 4. Selecting a rivet gun: Choose the corresponding gun head and rivet bolt according to the size of the rivet nut 4 (such as M6, M8, etc.).

[0040] Check tool condition: Confirm that the nozzle screw is installed correctly, all connecting parts are secure and reliable, and the nut of the manual riveting gun must be tightened to prevent loosening.

[0041] Adjusting the stroke or load: If using a stroke-adjustable rivet gun, the rivet stroke needs to be calculated and set according to the workpiece plate thickness; if using a tension-controlled tool, the nominal rivet load needs to be set according to the nut model.

[0042] The installation steps are as follows: Place the nut: Put the rivet nut 4 onto the end of the rivet gun's mandrel and squeeze it firmly, then push the bakelite part to tighten the bolt.

[0043] Insert the rivet nut 4 vertically through the through hole on the trim panel 3 and into the polygonal mounting hole on the instrument panel frame 2, ensuring that the rivet gun remains perpendicular to the instrument panel frame 2.

[0044] Riveting operation: Press the two handles of the rivet gun firmly, and the retraction of the mandrel will squeeze the thin-walled deformation area of ​​the nut, causing it to bulge outward and clamp the instrument panel frame 2.

[0045] Remove the mandrel: Pull out the bakelite ball or release the trigger, and the mandrel will exit from the threaded hole, completing the riveting.

[0046] The common installation locations of the dashboard expansion bracket 1 provided in this application are listed below: (1) The connection area between the left and right ends of the instrument panel and the A-pillar / front bulkhead of the vehicle body, the connecting end of the extension bracket 1 is threaded to the rivet nut 4 on the inner side of the lower guard plate of the A-pillar of the vehicle body or the sheet metal of the front bulkhead, and the other end is connected to the frame of the left / right body of the instrument panel to form the reinforcement support points at both ends of the instrument panel.

[0047] (2) The central functional area of ​​the instrument panel (central control screen / air conditioning vents / sub-instrument panel connection) For large-sized central control screens, integrated screens, or the central area of ​​dashboards with storage functions, the extension bracket 1 will be installed between the central frame of the dashboard and the crossbeam of the vehicle floor / center console bracket, or directly attached to the inner frame of the dashboard body, as an auxiliary load-bearing carrier for the central control screen and air conditioning module.

[0048] (3) Above / behind the glove box on the passenger side of the dashboard When it is necessary to carry heavy items, the extension bracket 1 will be installed between the upper edge of the glove box and the main frame of the dashboard, or between the rear of the glove box and the front bulkhead of the vehicle body, as an auxiliary support structure for the glove box.

[0049] In some embodiments, see Figure 3 and Figure 5 The polygonal anti-rotation section 42 is provided with a through hole coaxial with the internal thread hole of the internal thread connection section 44; the diameter of the through hole is larger than that of the internal thread hole so that the connecting end of the expansion bracket 1 and the through hole are in clearance fit.

[0050] In the above technical solution, the diameter of the through hole is larger than that of the internal thread hole, so that the connecting end of the expansion bracket 1 can pass smoothly through the through hole and rotate smoothly to be screwed into the internal thread hole. This can avoid the risk of friction and scratching when the connecting end of the expansion bracket 1 passes through the through hole of the polygonal anti-rotation section 42.

[0051] In some embodiments, see Figures 3 to 8The diameter of the first anti-detachment ring 41 is larger than the diameter of the second anti-detachment ring 43. The first anti-detachment ring 41 is attached to the surface of the instrument panel frame 2 away from the internal threaded connection section 44; the second anti-detachment ring 43 is attached to the surface of the instrument panel frame 2 near the internal threaded connection section 44. The first and second anti-detachment rings 43 are formed when the rivet nut 4 is installed by riveting with a riveting tool, which can achieve a reliable connection between the rivet nut 4 and the instrument panel frame 2, and avoid the risk of the rivet nut 4 coming out of the polygonal mounting hole, thus causing the expansion bracket 1 to fail to install.

[0052] In some embodiments, see Figure 6 The first anti-detachment ring 41 has a reinforcing rib 46 on the side facing the instrument panel frame 2. The reinforcing rib 46 is formed at the junction of the first anti-detachment ring 41 and the polygonal anti-rotation section 42.

[0053] The first anti-loosening retaining ring 41 has a larger diameter and fits on the surface of the instrument panel frame 2 away from the internal thread connection section 44. Its larger contact area can effectively disperse the pressure of the rivet nut 4 on the surface of the plastic instrument panel frame 2, avoiding damage such as dents and cracks on the frame surface due to excessive local pressure. It is especially suitable for the stress characteristics of plastic materials such as the instrument panel frame 2.

[0054] The first anti-slip retaining ring 41 is the main load-bearing surface between the rivet nut 4 and the instrument panel frame 2, and its diameter is larger than that of the second anti-slip retaining ring 43. When the bolts are tightened, the vehicle vibrates, or the extension bracket 1 transmits loads, the connection between the retaining ring and the polygonal anti-rotation section 42 is prone to plastic deformation or even cracking due to stress concentration. The reinforcing rib 46 is set at this critical connection position, which can increase the thickness and rigidity of the local structure, disperse the stress at the connection, and prevent the part from warping or deforming due to long-term stress. At the same time, the reinforcing rib 46 can improve the overall impact resistance of the first anti-slip retaining ring. Even if the extension bracket 1 generates instantaneous impact loads due to bumps during vehicle driving, it can prevent the retaining ring from being damaged due to sudden changes in force, ensuring the long-term reliability of the rivet nut 4.

[0055] In some embodiments, see Figure 6 The reinforcing ribs 46 are evenly distributed along the circumference of the polygonal anti-rotation section 42, so as to achieve uniform distribution of circumferential force, eliminate local stress concentration, and ensure the long-term reliability of the rivet nut 4.

[0056] In some embodiments, see Figure 6 The reinforcing rib 46 is triangular in shape. The triangular reinforcing rib 46 has its own structural stability, which can improve the strength of the rivet nut 4, effectively resist the deformation caused by external forces, and prevent the reinforcing rib 46 itself from breaking or warping. This ensures the structural integrity of the connection between the first anti-loosening retaining ring and the polygonal anti-rotation section 42, and extends the service life of the rivet nut 4.

[0057] In some embodiments, see Figures 3 to 8 The outer surface of the end of the internal threaded connecting section 44 is provided with a conical guide surface 45. This conical guide surface 45 reduces the difficulty of installing the rivet nut 4. When the connecting end of the extension bracket 1 approaches the internal threaded connecting section, even if there is a slight coaxiality deviation, it will be guided by the inclined surface of the conical guide surface 45, automatically correcting its position and sliding into the internal threaded hole. This design significantly reduces the alignment accuracy requirements during assembly, making it particularly suitable for assembly scenarios where visibility inside the instrument panel is obstructed and operating space is limited, thus reducing the time spent repeatedly adjusting bolt positions.

[0058] In some embodiments, see Figure 6 The outer surface of the polygonal anti-rotation section 42 is a regular square, pentagon, or hexagon. By adapting the polygonal outer surface to the polygonal mounting holes on the instrument panel frame 2, it can prevent the rivet nut 4 from rotating circumferentially within the mounting holes, thereby ensuring the positional reliability of the extension bracket 1 after installation.

[0059] In some embodiments, see Figures 3 to 5 The end of the connecting end of the expansion bracket 1 is exposed outside the internal threaded connecting section 44.

[0060] In the above technical solution, the connecting end of the extension bracket 1 extends outside the internal thread connecting section 44, which means that the engagement length between the connecting end and the internal thread connecting section 44 is within a controllable and reasonable range. This ensures sufficient thread engagement area to bear the load, and also allows confirmation of whether the bolt is fully tightened through the exposed end, preventing overload of the thread profile due to excessive bolt insertion or insufficient preload due to shallow insertion.

[0061] Based on the same inventive concept, this application also provides a vehicle including the mounting structure of the aforementioned dashboard extension bracket.

[0062] The vehicle provided in this application uses rivet nuts instead of embedded nuts on the dashboard frame, which not only saves the high cost of mold development, but also avoids the large amount of time spent on mold development, significantly reducing the overall cost of modification, while greatly shortening the project cycle of model facelift or modification and improving product iteration efficiency.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mounting structure for an instrument panel extension bracket, characterized in that, include: Instrument panel frame (2) is provided with polygonal mounting holes; A rivet nut (4) is installed on the polygonal mounting hole; the rivet nut (4) has a polygonal anti-rotation section (42) adapted to the polygonal mounting hole, an internally threaded connecting section (44) passing through the polygonal mounting hole, and a first anti-disengagement retaining ring and a second anti-disengagement retaining ring (43) formed at both ends of the polygonal anti-rotation section (42); the instrument panel frame (2) is limited between the first anti-disengagement retaining ring and the second anti-disengagement retaining ring (43); and The extension bracket (1) has its connecting end threaded through the polygonal anti-rotation section (42) of the rivet nut (4) and threadedly connected to the internal threaded connecting section (44).

2. The mounting structure of the instrument panel extension bracket as described in claim 1, characterized in that, The polygonal anti-rotation section (42) is provided with a through hole coaxial with the internal thread hole of the internal thread connection section (44); the diameter of the through hole is larger than that of the internal thread hole, so that the connecting end of the expansion bracket (1) is in clearance fit with the through hole.

3. The mounting structure of the instrument panel extension bracket as described in claim 1, characterized in that, The diameter of the first anti-detachment ring (41) is larger than the diameter of the second anti-detachment ring (43); the first anti-detachment ring (41) is attached to the surface of the instrument panel frame (2) away from the internal threaded connection section (44); the second anti-detachment ring (43) is attached to the surface of the instrument panel frame (2) close to the internal threaded connection section (44).

4. The mounting structure of the instrument panel extension bracket as described in claim 3, characterized in that, The first anti-detachment ring (41) has a reinforcing rib (46) on the side facing the instrument panel frame (2), and the reinforcing rib (46) is formed at the junction of the first anti-detachment ring (41) and the polygonal anti-rotation section (42).

5. The mounting structure of the instrument panel extension bracket as described in claim 4, characterized in that, The reinforcing ribs (46) are evenly distributed along the circumference of the polygonal anti-rotation section (42).

6. The mounting structure of the instrument panel extension bracket as described in claim 4, characterized in that, The reinforcing rib (46) is triangular in shape.

7. The mounting structure of the instrument panel extension bracket as described in claim 1, characterized in that, The outer surface of the end of the internal threaded connection section (44) is provided with a conical guide surface (45).

8. The mounting structure of the instrument panel extension bracket as described in claim 1, characterized in that, The outer surface shape of the polygonal anti-rotation segment (42) is a regular square, a regular pentagon, or a regular hexagon.

9. The mounting structure of the instrument panel extension bracket as described in claim 1, characterized in that, The end of the connecting end of the expansion bracket (1) is exposed outside the internal threaded connecting section (44).

10. A vehicle, characterized in that, The mounting structure includes the instrument panel extension bracket as described in any one of claims 1-9.

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