Automobile fender fixing structure and vehicle
By designing adjustable sleeve assembly and support pipe structure, the problems of installation accuracy and topcoat assembly in the assembly of the dump truck fender are solved, and the effect of high-precision installation and reduced secondary repainting is achieved.
Patent Information
- Application Number
- CN202422500205.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The fixed sleeve components of the existing dump truck fenders are fixed in position after welding, resulting in easy interference between the support pipe and the fender during assembly, affecting the installation accuracy, and not meeting the requirements of topcoat assembly, resulting in waste of secondary paint repainting.
A fixed structure of automobile fenders is designed, using adjustable sleeve components and support pipes, and the sleeve is fixed by welding and assembled, and the position of the support pipe is adjusted using adjustment bolts to meet the requirements of topcoat assembly and improve installation accuracy.
It achieves the improvement of installation accuracy while meeting the assembly requirements of topcoat, reducing secondary repaint waste, and improving the stability and assembly reliability of the fender by flexibly selecting the combination of support pipes.
Smart Images

Figure CN223224418U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile assembly, and in particular relates to an automobile fender fixing structure and a vehicle. Background Art
[0002] As one of the important exterior coverings of a car, the fender not only carries the function of showcasing the car's styling features, but its design also faces increasingly higher demands from people as cars become increasingly popular. At the same time, it also shoulders the important task of protecting the internal structure of the car body from external corrosion and provides a stable mounting support point for key components such as the front bumper and headlights.
[0003] Currently, dump truck fenders are typically mounted to the vehicle's subframe via support tubes to support the fender. However, the existing mounting sleeve assembly used to attach the support tube to the subframe on dump truck fenders uses a welded structure, which does not meet the requirements of topcoat assembly and results in wasteful secondary repainting.
[0004] To solve this problem, some manufacturers have begun to complete the welding process of the fixed sleeve assembly in advance. However, in this way, the relative position dimensions between the fixed sleeve assembly, the support tube and the fender will be locked during the welding stage, which will lead to interference between the support tube and the fender due to cumulative position errors in the subsequent assembly process, and the distance between the fender and the outer contour of the tire is too small, thereby affecting the overall installation accuracy. Utility Model Content
[0005] The purpose of the utility model is to propose and design a car fender fixing structure and a vehicle, in response to the problem that the existing dump truck fender cannot take into account both the installation accuracy and the surface painting assembly requirements at the same time during the assembly process, and to enable it to realize the flexible adjustment of the gap surface difference between the support tube and the fender on the basis of pre-welding the corresponding sleeve assembly, thereby ensuring that the assembled fender part can meet the surface painting assembly requirements and have high installation accuracy.
[0006] In order to achieve the above-mentioned purpose, on the one hand, the utility model provides a car fender fixing structure, which includes a fender and a subframe, and a support tube 1 is arranged between the fender and the subframe; an adjustable sleeve assembly is provided at a position on the subframe for connecting with the support tube 1, and the adjustable sleeve assembly includes a sleeve 1 fixedly mounted on the subframe, the inner cavity of the sleeve 1 is clearance-matched with the support tube 1, and the outer wall of the sleeve 1 is evenly penetrated by at least two threaded holes along the circumferential direction, and each threaded hole is threadedly connected with an adjusting bolt, and the end of the adjusting bolt passes through the corresponding threaded hole and abuts against the outer wall of the support tube 1. Based on this, when the above structure is used to fix the fender, on the one hand, the sleeve 1 can be welded and fixed to the corresponding position on the subframe first, and then the fender, support tube 1 and sleeve 1 can be assembled, so as to meet the topcoat assembly requirements and reduce the waste of secondary touch-up paint; on the other hand, during the assembly process of support tube 1 and fender, the position of support tube 1 can be adjusted by moving support tube 1 and screwing the corresponding adjusting bolt, thereby improving the reliability of the assembly dimension chain of the adjustable sleeve assembly, support tube 1 and fender, and realizing the adjustable surface difference of the gap between support tube 1 and fender, meeting the installation accuracy requirements and avoiding interference.
[0007] Furthermore, the direction of the support tube 1 is Z-shaped, so as to ensure that the distance between the fender and the chassis tire can be adjusted by rotating the support tube 1.
[0008] Furthermore, the end of the support tube 1 is detachably connected to the fender via at least one fixing assembly, and the number of the fixing assemblies is preferably two.
[0009] Furthermore, a second support tube is disposed between the fender and the subframe. One end of the second support tube is detachably connected to the subframe via a fixing sleeve assembly, and the other end of the second support tube is detachably connected to the fender via at least one fixing assembly. Since the fender of the present invention is equipped with two support tubes, during the fender fixing process, if the position of the second support tube, which has a fixed mounting position, can directly meet the fender assembly requirements, the fender can be directly installed using the second support tube without using the first support tube, or both the first and second support tubes can be used to install and fix the fender, thereby improving the stability of the entire fender. Conversely, if the position of the second support tube does not meet the fender assembly requirements, the fender can be installed using only the first support tube without using the second support tube.
[0010] Furthermore, support tube 1 is arranged on the outer side of the fender, and support tube 2 is arranged on the inner side of the fender; or support tube 1 is arranged on the inner side of the fender, and support tube 2 is arranged on the outer side of the fender, which can be flexibly selected according to the actual situation of the dump truck.
[0011] Furthermore, the fixed sleeve assembly includes a sleeve 2 fixedly mounted on the subframe, the inner cavity of the sleeve 2 is plugged into the support tube 2, the outer wall of the sleeve 2 is evenly penetrated by two through holes 1 along the circumference, and the outer wall of the support tube 2 is evenly penetrated by two through holes 2 along the circumference, and the end of the fixing bolt passes through the two through holes 1 and the two through holes 2 and is threadedly connected to the locking nut, and the fixation between the sleeve 2 and the support tube 2 is achieved by the cooperation between the fixing bolt and the locking nut.
[0012] Furthermore, the direction of the support tube 1 is a straight direction, and it can also be a Z-shaped direction.
[0013] Furthermore, the fixing assembly includes a bolt bracket and a U-shaped bolt. The bolt bracket is located between the fender and the corresponding support tube. The U-shaped bolt is arranged across the outside of the corresponding support tube, and the two ends of the U-shaped bolt pass through the bolt bracket and the fender in sequence and are threadedly connected to the fixing nut to realize a detachable connection between the fender and the corresponding support tube.
[0014] Furthermore, a gasket is provided on the side of the fender away from the bolt bracket, and the end of the U-bolt passes through the bolt bracket, the fender and the gasket in sequence and is threadedly connected to the fixing nut to achieve a detachable connection between the fender and the corresponding support tube.
[0015] On the other hand, the present invention further provides a vehicle, comprising a vehicle body, wherein the vehicle body is provided with the above-mentioned automobile fender fixing structure.
[0016] It can be seen from the above technical solutions that the present invention has the following advantages: First, when the automobile fender fixing structure provided by the present invention is used to fix the fender, the sleeve 1 can be welded and fixed to the corresponding position on the subframe first, and then the fender, support tube 1 and sleeve 1 can be assembled; and in this process, it can meet the topcoat assembly requirements through the pre-sleeve welding process, thereby reducing the waste of secondary touch-up paint, and can flexibly adjust the position of the support tube 1 by moving, rotating the support tube 1 and screwing the corresponding adjusting bolt, thereby improving the reliability of the assembly dimension chain of the adjustable sleeve assembly, the support tube 1 and the fender, and realizing the connection between the support tube 1 and the fender. The gap surface difference is adjustable to meet the installation accuracy requirements and avoid interference; secondly, the present invention can also flexibly select support tube one and support tube two according to actual assembly conditions during the fender fixing process. Specifically, if the position of support tube two can directly meet the fender assembly requirements, it can directly select support tube two to install the fender without using support tube one, thereby simplifying the entire assembly process, or it can simultaneously use support tube one and support tube two to install and fix the fender, thereby improving the stability of the entire fender; conversely, if the position of support tube two cannot meet the fender assembly requirements, it can only select support tube one to install the fender without using support tube two. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 2 ;
[0020] Figure 3 Schematic diagram of the structure of the adjustable sleeve assembly and the fixed sleeve assembly in the present utility model;
[0021] Figure 4 It is a structural schematic diagram of the fixing component in the utility model.
[0022] In the figure: 1. Fender; 2. Support tube 2; 3. Fixing assembly; 4. Adjustable sleeve assembly; 5. Support tube 1; 6. Sleeve 2; 7. Fixing bolt; 8. Adjusting bolt; 9. Subframe; 10. Sleeve 1; 11. Gasket; 12. Bolt bracket; 13. U-bolt. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] Example 1
[0025] like Figures 1 to 4 As shown, this embodiment 1 provides a first automobile fender fixing structure, which includes a fender 1, a subframe 9, and a support tube 5 disposed between the fender 1 and the subframe 9. The support tube 5 is oriented in a Z-shape, and one end of the support tube 5 is detachably connected to the subframe 9 via an adjustable sleeve assembly 4 welded to the subframe 9. The other end of the support tube 5 is detachably mounted on the surface of the fender 1 via at least one fixing assembly 3.
[0026] Specifically, the adjustable sleeve assembly 4 includes a sleeve 10 fixedly mounted on the sub-frame 9, the inner cavity of the sleeve 10 is clearance-matched with the support tube 5, and the outer wall of the sleeve 10 is evenly penetrated by at least two threaded holes along the circumferential direction, each threaded hole is threadedly connected with an adjusting bolt 8, and the end of the adjusting bolt 8 passes through the corresponding threaded hole and abuts against the outer wall of the support tube 5.
[0027] The fixing assembly 3 includes a bolt bracket 12 and a U-bolt 13. The bolt bracket 12 is located between the fender 1 and the support tube 1 5. The U-bolt 13 is arranged across the outside of the support tube 1 5. The two ends of the U-bolt 13 sequentially penetrate the bolt bracket 12 and the fender 1 before being threadedly connected to a fixing nut, thereby achieving a detachable connection between the fender 1 and the support tube 5. In addition, as a preferred embodiment, a gasket 11 can be provided on the side of the fender 1 away from the bolt bracket 12. The two ends of the U-bolt 13 sequentially penetrate the bolt bracket 12, the fender 1, and the gasket 11 before being threadedly connected to the fixing nut. In this way, the gasket 11 can also increase the contact area between the fixing nut and the surface of the fender 1, thereby more effectively distributing the pressure generated during tightening and preventing the surface of the part from being worn or damaged due to excessive local pressure.
[0028] Based on this, when the above structure is used to fix the fender 1, the sleeve 10 can be welded and fixed to the corresponding position on the subframe 9 first, and then the fender 1, the support tube 5 and the sleeve 10 can be assembled, that is, the support tube 5, the U-bolt 13, the bolt bracket 12 and the gasket 11 can be pre-fixed to the upper end of the fender 1, and then the other end of the support tube 5 can be plugged into the sleeve 10 in the adjustable sleeve assembly 4, and then the support tube 5 can be rotated and adjusted according to the distance between the fender 1 and the chassis tire until it meets the assembly requirements, and then the adjusting bolt 8 can be tightened until the end face of the adjusting bolt 8 fits with the surface of the support tube 5, and the installation of the entire fender 1 is completed.
[0029] Moreover, in this process, it can meet the topcoat assembly requirements through the pre-sleeve welding process, thereby reducing the waste of secondary paint touch-up, and can flexibly adjust the position of the support tube 5 by moving and rotating the support tube 5 and screwing the corresponding adjusting bolt 8, thereby improving the reliability of the assembly dimension chain of the adjustable sleeve assembly 4, the support tube 5, and the fender 1, and realizing the adjustable gap surface difference between the support tube 5 and the fender 1, meeting the installation accuracy requirements and avoiding interference.
[0030] Example 2
[0031] like Figures 1 to 4As shown, the second embodiment provides a second automobile fender fixing structure. Compared with the first embodiment, the difference of the second embodiment is that an additional straight-line support tube 2 is provided between the fender 1 and the subframe 9, and one end of the support tube 2 is detachably connected to the subframe 9 through a fixed sleeve assembly, and the other end of the support tube 2 is detachably connected to the fender 1 through at least one fixing assembly 3, and the support tube 2 2 can be arranged on the same side of the fender 1 as the support tube 1 5, or on different sides of the fender 1.
[0032] Specifically, the fixed sleeve assembly includes a sleeve 2 6 that is welded and fixedly installed on the subframe 9, the inner cavity of the sleeve 2 6 is plugged into the support tube 2 2, the outer wall of the sleeve 2 6 is evenly penetrated by two through holes 1 along the circumference, and the outer wall of the support tube 2 2 is evenly penetrated by two through holes 2 along the circumference, and the end of the fixing bolt 7 is passed through the two through holes 1 and the two through holes 2 and then threadedly connected to the locking nut, so that the fixation between the sleeve 2 6 and the support tube 2 2 is achieved through the cooperation between the fixing bolt 7 and the locking nut.
[0033] The structure of the fixing assembly 3 is the same as that of the fixing assembly 3 in Example 1, and the bolt bracket 12 in the fixing assembly 3 is located between the fender 1 and the support tube 2 2, and the U-shaped bolt 13 is arranged across the outer side of the corresponding support tube 2 2. The two ends of the U-shaped bolt 13 pass through the bolt bracket 12, the fender 1, and the gasket 11 in sequence and are then threadedly connected to the fixing nut to achieve a detachable connection between the fender 1 and the support tube 2 2.
[0034] Based on this, in the process of fixing the fender 1, the second embodiment of the present invention can flexibly select support tube 1 5 and support tube 2 2 according to the actual assembly situation. Specifically, if the position of support tube 2 2 can directly meet the assembly requirements of the fender 1, it can directly select support tube 2 2 to install the fender 1 without using support tube 1 5, thereby simplifying the entire assembly process, or it can simultaneously use support tube 1 5 and support tube 2 2 to install and fix the fender 1, thereby improving the stability of the entire fender 1; conversely, if the position of support tube 2 2 cannot meet the assembly requirements of the fender 1, it can only select support tube 1 5 to install the fender 1 without using support tube 2 2.
[0035] Example 3
[0036] The third embodiment provides a vehicle including a vehicle body, wherein the vehicle body is provided with the automobile fender fixing structure of the first or second embodiment, and the fender is installed by the above-mentioned automobile fender fixing structure.
[0037] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.
[0038] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A car fender fixing structure, comprising a fender and a subframe, wherein a support tube is provided between the fender and the subframe; characterized in that: An adjustable sleeve assembly is provided at a position on the subframe for connecting with the support tube 1. The adjustable sleeve assembly includes a sleeve 1 fixedly mounted on the subframe. The inner cavity of the sleeve 1 is clearance-matched with the support tube 1. The outer wall of the sleeve 1 is evenly penetrated by at least two threaded holes along the circumferential direction. An adjusting bolt is threadedly connected to each threaded hole. The end of the adjusting bolt passes through the corresponding threaded hole and abuts against the outer wall of the support tube 1.
2. The automobile fender fixing structure according to claim 1, characterized in that: The direction of the support tube 1 is Z-shaped.
3. The automobile fender fixing structure according to claim 1, characterized in that: The end of the support tube 1 is detachably connected to the fender through at least one fixing assembly.
4. The automobile fender fixing structure according to claim 1, characterized in that: A support tube 2 is provided between the fender and the subframe. One end of the support tube 2 is detachably connected to the subframe via a fixed sleeve assembly, and the other end of the support tube 2 is detachably connected to the fender via at least one fixed assembly.
5. The automobile fender fixing structure according to claim 4, characterized in that: The first support tube is arranged on the outer side of the fender, and the second support tube is arranged on the inner side of the fender; or the first support tube is arranged on the inner side of the fender, and the second support tube is arranged on the outer side of the fender.
6. The automobile fender fixing structure according to claim 4, characterized in that: The fixed sleeve assembly includes a sleeve 2 fixedly mounted on the subframe, the inner cavity of the sleeve 2 is plugged into the support tube 2, the outer wall of the sleeve 2 is evenly penetrated by two through holes 1 along the circumference, and the outer wall of the support tube 2 is evenly penetrated by two through holes 2 along the circumference, and the end of the fixing bolt passes through the two through holes 1 and the two through holes 2 and is threadedly connected to the locking nut.
7. The automobile fender fixing structure according to claim 4, characterized in that: The direction of the support tube 1 is a straight line.
8. The automobile fender fixing structure according to any one of claims 3 to 7, characterized in that: The fixing assembly includes a bolt bracket and a U-shaped bolt. The bolt bracket is located between the fender and the corresponding support tube. The U-shaped bolt is arranged across the outside of the corresponding support tube, and the two ends of the U-shaped bolt pass through the bolt bracket and the fender in sequence and are threadedly connected to the fixing nut.
9. The automobile fender fixing structure according to claim 8, characterized in that: A gasket is provided on the side of the fender away from the bolt bracket. The end of the U-bolt passes through the bolt bracket, the fender and the gasket in sequence and is then threadedly connected to the fixing nut.
10. A vehicle comprising a vehicle body, characterized in that: A vehicle body is provided with the automobile fender fixing structure according to any one of claims 1 to 9.