Fixing structure of rear bumper and sheet metal part
The combined design of the mounting bracket and fixing seat, locking column and rubber pad solves the problem of loose connection between the rear bumper and the sheet metal, achieving a stable connection, noise reduction and extended service life.
Patent Information
- Application Number
- CN202423127171.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the prior art, the connection between the rear bumper and the sheet metal component is easily loosened due to the brittleness of the plastic bracket or improper fit of the screws and nuts, affecting stability and safety.
It uses components such as a mounting bracket, a fixing base, a cavity structure, a fastening bolt, a mounting base, a locking column and a connecting spring. The locking column is inserted into the locking hole to achieve a stable connection, and a rubber pad is installed on the inner wall of the connecting groove to reduce vibration and noise.
It improves the connection strength and stability between the rear bumper and the sheet metal, reduces noise and vibration, extends service life and reduces maintenance costs.
Smart Images
Figure CN223456900U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile parts, especially relates to the fixed structure of rear bumper and sheet metal part. BACKGROUND
[0002] In automobile manufacturing, rear bumper and sheet metal part are important components of the vehicle body, and the connection between them needs to ensure stability and safety, and the assembly of the rear bumper and the sheet metal of the vehicle body is fixedly connected by using the mounting bracket.
[0003] The mounting bracket and the vehicle body are fixed by screws and nuts embedded in the sheet metal part at present; the mounting bracket is made of plastic, and due to the brittleness of the plastic itself or the bumping road conditions, the clamping part is broken and damaged at the screw and nut screwing place, causing the bracket assembly to fail and fall off, resulting in the disconnection of the bumper on both sides, and due to the high precision requirement between the screw and the nut, improper installation or long-term use may cause the connection to be loose, thereby affecting the stability and safety of the rear bumper. SUMMARY
[0004] The utility model discloses a fixed structure of rear bumper and sheet metal part, which aims at the problems existing in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fixed structure of rear bumper and sheet metal part, comprising a mounting bracket connected with the sheet metal part and the rear bumper, a plurality of fixing seats are arranged on the mounting bracket, a cavity structure is formed in the fixing seat, a fastening bolt is connected to the surface of the mounting bracket and extends into the inside of the cavity structure, a pair of mounting seats are arranged on the inside of the cavity structure, a locking column is connected to one end of each mounting seat, a connecting spring is arranged between each mounting seat and the inner side wall of the cavity structure, a connecting groove is formed in the sheet metal part for mounting the fixing seat, and a pair of locking holes are formed in the side wall of the connecting groove.
[0006] Through the above-mentioned technical scheme, the fixed structure realizes the stable connection between the rear bumper and the sheet metal part through the cooperation of the mounting bracket, the fixing seat, the cavity structure, the fastening bolt, the mounting seat, the locking column, the connecting spring, the connecting groove and the locking hole on the sheet metal part.
[0007] Optionally, the fixing seat and the surface of the mounting bracket are respectively provided with a position-docking mounting channel, and the fastening bolt is located on the inside of the mounting channel.
[0008] By adopting the technical scheme, the mounting channel provided by the position of the fixing seat and the surface of the mounting bracket is in abutment, which provides an accurate mounting path for the fastening bolt, thereby ensuring that the bolt can be firmly connected between the bracket and the fixing seat and improving the convenience and accuracy of installation.
[0009] Optionally, the side wall of the cavity structure is provided with a pair of through holes, and the pair of through holes are symmetrically distributed, and when the fixing seat is in abutment with the connecting groove, the pair of through holes are in abutment with the position of the pair of locking holes.
[0010] By adopting the technical scheme, the pair of through holes provided by the side wall of the cavity structure are in abutment with the position of the locking hole of the connecting groove of the sheet metal part, thereby providing an insertion path for the locking column, which enables the mounting bracket to be firmly locked on the sheet metal part and prevents the risk of relative movement or falling off.
[0011] Optionally, the pair of mounting seats are semispherical, and the flat surface of the mounting seat is provided with a groove for mounting the connecting spring.
[0012] By adopting the technical scheme, the semispherical mounting seat design reduces friction and resistance during installation, improves installation efficiency, and the connecting spring mounted between the mounting seat and the inner side wall of the cavity structure provides elastic restoring force for the locking column.
[0013] Optionally, the inner side wall of the connecting groove is provided with a rubber pad.
[0014] By adopting the technical scheme, the rubber pad mounted on the inner side wall of the connecting groove not only increases the tightness of the connection, but also reduces the transmission of vibration and noise to a certain extent, and in addition, the elasticity of the rubber pad can compensate for the gap caused by manufacturing or installation errors, thereby improving the reliability and stability of the connection.
[0015] Optionally, one end of the fastening bolt located on the inner side of the cavity structure is semispherical, and the fastening bolt is located at the middle position of the cavity structure.
[0016] By adopting the technical scheme, one end of the fastening bolt located on the inner side of the cavity structure is designed to be semispherical and located at the middle position. This design enables the bolt to smoothly extrude the mounting seat when it is screwed in, without causing resistance or jamming, and the semispherical head can also provide a better force area, thereby improving the fastening effect of the bolt.
[0017] Optionally, the mounting bracket is frame-shaped, the surface of the mounting bracket is provided with a mounting groove, and the inner side of the mounting groove is provided with a reinforcing rib.
[0018] By adopting the technical scheme, the mounting bracket is designed in a frame shape, thereby reducing the overall weight and improving the strength and rigidity of the structure.
[0019] Optionally, the surface of the mounting bracket is provided with clamping pieces for mounting the rear bumper, and the number of the clamping pieces is several.
[0020] By adopting the technical scheme, the clamping pieces arranged on the surface of the mounting bracket are used for fixing the rear bumper, the number and position of the clamping pieces are reasonably distributed according to the shape and size of the rear bumper, and it is ensured that the rear bumper can be firmly mounted on the bracket and is not easy to fall off.
[0021] Compared with the prior art, the utility model has the advantages that:
[0022] 1. The fixing seat is designed to replace the traditional screw fixing mode, the cavity structure, the built-in locking column and the connecting spring on the fixing seat enable the locking column to be elastically clamped into the locking hole on the sheet metal part during installation, and a stable mechanical connection is formed, the design simplifies the installation steps, significantly enhances the connection strength between the mounting bracket and the sheet metal part, and effectively avoids the connection failure problem caused by the brittleness of the plastic bracket or the improper cooperation of the screw and the nut.
[0023] 2. The addition of the rubber pad also plays a sound insulation and shock absorption role, effectively reduces the noise and vibration generated during the driving of the automobile, and improves the comfort and safety of riding.
[0024] 3. The mounting bracket is designed in a frame shape, the mounting groove is arranged on the surface of the mounting bracket, and the reinforcing rib is arranged in the mounting groove, the design not only improves the strength and rigidity of the bracket, but also enhances the durability of the bracket, that is, the bracket can maintain the integrity and stability of the structure even in long-term use or harsh environment, and the maintenance and replacement cost caused by damage of the bracket is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a front view structural schematic diagram of the mounting bracket of the utility model;
[0026] Figure 2 It is a rear view three-dimensional structural schematic diagram of the mounting bracket of the utility model;
[0027] Figure 3 It is a sectional connection structural schematic diagram of the mounting bracket and the sheet metal part of the utility model;
[0028] Figure 4 It is a connecting structural schematic diagram of the mounting seat and the locking column of the utility model.
[0029] In the figure: 1. Sheet metal; 2. Mounting bracket; 201. Mounting slot; 202. Reinforcing rib; 203. Connector; 3. Fixing seat; 301. Mounting channel; 4. Cavity structure; 401. Through hole; 5. Fastening bolt; 6. Mounting seat; 7. Locking column; 8. Connecting spring; 9. Connecting slot; 901. Rubber pad; 10. Locking hole. DETAILED DESCRIPTION
[0030] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. 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.
[0031] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0032] like Figure 1 —4 shows, the specific scheme of the embodiment is as follows: the fixing structure of the rear bumper and the sheet metal part, including a mounting bracket 2 connected to the sheet metal part 1 and the rear bumper, the mounting bracket 2 is frame-shaped, and the mounting bracket 2 adopts a frame-shaped design, which not only reduces the overall weight, but also improves the strength and rigidity of the structure, ensuring that the connection between the rear bumper and the sheet metal part 1 is more stable, and a mounting groove 201 is opened on the surface between the mounting brackets, and a reinforcing rib 202 is installed on the inner side of the mounting groove 201. The design of the reinforcing rib 202 further enhances the bearing capacity and anti-deformation ability of the bracket, and prolongs the service life, and the surface of the mounting bracket 2 is provided with a clamping piece 203 for mounting the rear bumper, and the number of the clamping pieces 203 is several. The clamping pieces 203 arranged on the surface of the mounting bracket 2 are used to fix the rear bumper, and the number and position of the clamping pieces 203 are reasonably distributed according to the shape and size of the rear bumper, ensuring that the rear bumper can be firmly mounted on the bracket and is not easy to fall off;
[0033] The mounting bracket 2 is provided with a plurality of fixing seats 3, the fixing seat 3 and the surface of the mounting bracket 2 are respectively provided with a position-docking mounting channel 301, the mounting channel 301 provides a mounting path for the fastening bolt 5, ensures that the bolt can be accurately and firmly connected between the bracket and the fixing seat 3, the fixing seat 3 is provided with a cavity structure 4, the cavity structure 4 provides a mounting space for the mounting seat 6, the locking column 7 and the connecting spring 8, at the same time, the weight of the fixing seat 3 is reduced, and the structural efficiency is improved, a pair of through holes 401 are arranged in the side wall of the cavity structure 4, the pair of through holes 401 are symmetrically distributed, the through hole 401 is aligned with the locking hole 10, and an insertion path is provided for the locking column 7, so that the mounting bracket 2 and the sheet metal part 1 are locked and connected.
[0034] The surface of the mounting bracket 2 is connected with the fastening bolt 5 extending through and extending to the inside of the cavity structure 4, the fastening bolt 5 is located on the inside of the mounting channel 301, one end of the fastening bolt 5 located on the inside of the cavity structure 4 is hemispherical, the fastening bolt 5 is located at the middle position of the cavity structure 4, one end of the fastening bolt 5 located on the inside of the cavity structure 4 is designed as a hemisphere, so that the fastening bolt 5 can extrude the mounting seat 6 on both sides when rotating in, and the fastening bolt 5 is located at the middle position, so that the pair of mounting seats 6 subjected to extrusion can move synchronously, and the moving distance is the same.
[0035] The inside of the cavity structure 4 is provided with a pair of mounting seats 6, the mounting seat 6 is designed as a hemisphere, so that the fastening bolt 5 does not interfere when extruding, and can also reduce friction and resistance to a certain extent during installation, improve installation efficiency, one end of the pair of mounting seats 6 is respectively connected with the locking column 7, when the fixing seat 3 is docked with the connecting groove 9, the locking column 7 can be inserted into the locking hole 10, the mounting bracket 2 and the sheet metal part 1 are fixedly connected, and relative movement or falling off is prevented, the connecting spring 8 is respectively arranged between the pair of mounting seats 6 and the inner wall of the cavity structure 4, the connecting spring 8 provides elastic restoring force for the locking column 7, so that after the fastening bolt 5 and the mounting seat 6 are separated, the locking column 7 can return to the inside of the cavity structure 4 through the rebounding force of the connecting spring 8, the pair of mounting seats 6 are respectively hemispherical, and the mounting seat 6 is provided with a groove for mounting the connecting spring 8.
[0036] The metal plate 1 is provided with a connecting groove 9 for installing the fixing seat 3, the connecting groove 9 provided on the metal plate 1 provides an installation space for the fixing seat 3, thereby ensuring that the connection between the mounting bracket 2 and the metal plate 1 can be smoothly carried out, and a rubber pad 901 is installed on the inner side wall of the connecting groove 9. The rubber pad 901 not only increases the tightness of the connection, but also can reduce the transmission of vibration and noise to a certain extent, and the elasticity of the rubber pad 901 can also compensate for the gap caused by manufacturing or installation errors to a certain extent, thereby improving the reliability and stability of the connection, and a pair of locking holes 10 are provided on the side wall of the connecting groove 9, when the fixing seat 3 is connected with the connecting groove 9, a pair of the perforations 401 are connected with a pair of the locking holes 10, the locking hole 10 can accommodate the insertion of the locking column 7, thereby realizing the locking connection between the mounting bracket 2 and the metal plate 1, and the design improves the stability of the connection.
[0037] The working principle of the above embodiment is as follows:
[0038] When the mounting bracket 2 is installed, the fixing seat 3 on the mounting bracket 2 is inserted into the connecting groove 9 on the metal plate 1, after insertion, the fastening bolt 5 is screwed into the inner side of the installation channel 301 through the installation tool, as the fastening bolt 5 is gradually screwed in, the hemispherical head begins to contact the mounting seat 6 in the cavity structure 4, since the mounting seat 6 is also designed as a hemisphere, this design ensures that the bolt can smoothly extrude the mounting seat 6 when it is screwed in, and will not be resisted or stuck. As the bolt is further tightened, the pressure on the mounting seat 6 gradually increases and begins to move along the axial direction of the bolt, since a pair of mounting seats 6 are connected with the locking column 7 and connected through the connecting spring 8, when one of the mounting seats 6 moves, the other mounting seat 6 will also be subjected to a corresponding pulling force or pushing force, thereby moving synchronously, when the fastening bolt 5 reaches the predetermined fastening torque, the mounting seat 6 and the locking column 7 have been completely inserted in place, thereby realizing the firm connection between the mounting bracket 2 and the metal plate 1, at this time, the elastic force of the connecting spring 8 is partially compressed, thereby providing a certain pre-tightening force for the locking column 7, thereby enhancing the stability and reliability of the connection.
[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A structure for fixing a rear bumper and a sheet metal member, comprising a mounting bracket connected to the sheet metal member and the rear bumper, characterized in that, The mounting bracket is provided with a plurality of fixing seats, a cavity structure is formed in the fixing seat, a fastening bolt is connected to the surface of the mounting bracket and extends into the cavity structure, a pair of mounting seats are arranged in the inner side of the cavity structure, a locking column is connected to one end of each mounting seat, a connecting spring is arranged between each mounting seat and the inner side wall of the cavity structure, a connecting groove is formed in the sheet metal part for mounting the fixing seat, and a pair of locking holes are formed in the side wall of the connecting groove.
2. The rear bumper and sheet metal member fixing structure according to claim 1, characterized by: The fixing seat and the surface of the mounting bracket are respectively provided with a position-docking mounting channel, and the fastening bolt is located in the inner side of the mounting channel.
3. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: A pair of through holes are formed in the side wall of the cavity structure, and the pair of through holes are symmetrically distributed; when the fixing seat is docked with the connecting groove, the pair of through holes are in position-docking relationship with the pair of locking holes.
4. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: Each mounting seat is hemispherical, and a groove is formed in the plane of the mounting seat for mounting the connecting spring.
5. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: A rubber pad is mounted on the inner side wall of the connecting groove.
6. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: One end of the fastening bolt located in the inner side of the cavity structure is hemispherical, and the fastening bolt is located at the middle position of the cavity structure.
7. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: The mounting bracket is frame-shaped, a mounting groove is formed in the surface of the mounting bracket, and a reinforcing rib is mounted on the inner side of the mounting groove.
8. The rear bumper and sheet metal member securing structure according to claim 1, characterized by: The surface of the mounting bracket is provided with a clamping piece for mounting the rear bumper, and the number of clamping pieces is several.