After-treatment mounting brackets and vehicles
By splitting the post-processing fixing bracket into a separate first bracket and a second bracket, and achieving a tight fit and connection through the support surface, the problems of bulky brackets and difficult assembly in the prior art are solved, and the effects of high strength, stability and easy assembly are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING FOTONDAIMLER AUTOMOTIVE
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the post-processing bracket is a one-piece casting, which makes it bulky and difficult to assemble, unable to be positioned, and may cause problems such as the wire harness not being able to be tightened.
The aftertreatment mounting bracket is split into a first bracket and a second bracket. The first bracket is connected to the vehicle frame, and the second bracket is connected to the aftertreatment assembly. The support surface achieves a tight fit connection, which enhances the connection strength and stability, absorbs vibration energy, and simplifies the assembly process.
It improves the connection strength and stability of the bracket, reduces the risk of loosening and slippage, reduces assembly complexity, adapts to the needs of different post-processing assemblies, and reduces cost and weight.
Smart Images

Figure CN224282770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle parts technology, and in particular to a post-processing fixing bracket and a vehicle. Background Technology
[0002] In existing technologies, the commonly used aftertreatment bracket is a one-piece cast bracket. The larger the aftertreatment unit, the larger the hole spacing of the aftertreatment bracket needs to be. This results in the one-piece cast bracket being quite bulky. Furthermore, when the bracket is assembled with the aftertreatment assembly and then connected to the vehicle frame, it can lead to difficulties in positioning and adjustment, making assembly difficult. It may also cause problems such as the bracket bolts not being able to be tightened due to the wiring harness already being installed within the vehicle frame. When the bracket is directly assembled onto the vehicle frame before assembling the angled aftertreatment assembly, it can cause assembly problems that are impossible or difficult to resolve. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a post-processing fixing bracket, which is divided into a first bracket and a second bracket. The structure is simple and flexible, and assembly is extremely convenient.
[0004] This utility model further proposes a vehicle.
[0005] According to a first aspect of the present invention, a post-treatment mounting bracket includes: a first bracket having a support surface formed thereon, the first bracket being adapted to be connected to a vehicle frame; and a second bracket being attached to the support surface and detachably connected to the first bracket, the second bracket being adapted to be connected to a post-treatment assembly.
[0006] According to the post-processing fixing bracket of this utility model embodiment, by disassembling the post-processing fixing bracket into a split first bracket and a second bracket, and fixing the second bracket to the first bracket after it is attached to the support surface, the connection strength and stability between the first bracket and the second bracket can be guaranteed. Furthermore, the tightly fitting surfaces reduce the relative movement between the first bracket and the second bracket, lowering the risk of loosening or slippage caused by vibration or other external forces. It also effectively absorbs and dissipates vibration energy, while reducing unnecessary shaking or swaying. The close-fitting connection also makes the assembly process simpler and faster, achieving an ideal fit without complex adjustment steps.
[0007] According to some embodiments of the present invention, the first bracket includes: a first plate portion adapted to be connected to the inner side of the vehicle frame; at the lower end of the first plate portion, a second plate portion extends from the first plate portion toward the inner side of the vehicle frame to form a second plate portion, the second plate portion having the support surface formed thereon and connected to the second bracket.
[0008] According to some embodiments of the present invention, the included angle between the first plate portion and the second plate portion is an obtuse angle, and the projection shape of the connecting portion between the first plate portion and the second plate portion on the side of the frame is a straight line segment at an angle to the horizontal line.
[0009] According to some embodiments of the present invention, on one side of the first plate portion, a third plate portion extends from the first plate portion toward the inner side of the frame to form a third plate portion, and the third plate portion is connected to the second plate portion, and the second bracket is attached to the support surface and abuts against the third plate portion.
[0010] According to some embodiments of the present invention, on the side of the third plate portion adjacent to the first plate portion, a flange portion is formed extending from the third plate portion in a direction parallel to the side of the frame, the flange portion being adapted to connect with the inner side of the frame.
[0011] According to some embodiments of the present invention, a first positioning part and a first connecting part are provided on the support surface, and a second positioning part for positioning and cooperating with the first positioning part and a second connecting part for fixedly connecting with the first connecting part are provided on the second bracket.
[0012] According to some embodiments of the present invention, the second bracket has an upwardly protruding boss and a first mounting hole is formed on the boss, the boss being adapted to fix the heat insulation cover of the post-treatment assembly.
[0013] According to some embodiments of the present invention, the second bracket includes a support plate, on both sides of the support plate are formed opposing connecting lugs, two opposing connecting lugs form a group and at least two groups of connecting lugs are formed on the support plate, the connecting lugs are formed with a second mounting hole and are adapted to be connected to the post-processing assembly, and the portion of the support plate away from the connecting lugs is connected to the first bracket.
[0014] According to some embodiments of the present invention, a first hollow structure is formed between at least two sets of connecting lugs on the support plate, and a rib plate is connected between each set of two connecting lugs. Intersecting reinforcing ribs are formed in the first hollow structure, and the ends of the reinforcing ribs are connected to the positions adjacent to the connecting lugs. Furthermore, a plurality of second hollow structures are formed on the support plate, which are through-slot structures.
[0015] According to a second aspect of the present invention, a vehicle includes the aforementioned aftertreatment mounting bracket, wherein the vehicle's frame longitudinal beam is connected to the first bracket, and the vehicle's aftertreatment assembly is connected to the second bracket.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the structure of the aftertreatment fixing bracket assembled with the vehicle frame longitudinal beam and the aftertreatment assembly according to an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the assembly of the after-processing fixing bracket and the longitudinal beam of the vehicle frame according to an embodiment of the present utility model.
[0020] Figure label:
[0021] 1. First bracket; 11. Support surface; 12. First plate; 13. Second plate; 14. Third plate; 15. Flanged edge; 16. First positioning part; 17. Third connecting part;
[0022] 2. Second bracket; 21. Second positioning part; 22. Boss; 23. First mounting hole; 24. Support plate; 25. Connecting lug; 26. Second mounting hole; 27. First hollow structure; 28. Reinforcing rib; 29. Second hollow structure; 30. Second connecting part; 31. Rib plate;
[0023] 3. Chassis; 4. Aftertreatment assembly. Detailed Implementation
[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.
[0025] The following is for reference. Figures 1-2 This invention describes a post-processing mounting bracket and a vehicle according to an embodiment of the present invention.
[0026] On the one hand, embodiments of this utility model provide a post-processing fixing bracket, such as... Figures 1-2 As shown, the aftertreatment mounting bracket includes a first bracket 1 and a second bracket 2. The first bracket 1 has a support surface 11 and is adapted to be connected to the vehicle frame 3. The second bracket 2 is attached to the support surface 11 and detachably connected to the first bracket 1, and is adapted to be connected to the aftertreatment assembly 4.
[0027] Specifically, during the assembly process, the assembly is first performed by fixing the first bracket 1 to the frame 3, fixing the second bracket 2 to the aftertreatment assembly 4, and then fixing the second bracket 2 with the aftertreatment assembly 4 to the first bracket 1, thereby completing the assembly.
[0028] The first bracket 1 has a support surface 11, on which the second bracket 2 is attached and fixedly connected. The support surface 11 provides sufficient contact area for the first bracket 1 and the second bracket 2, ensuring the connection strength and stability. Furthermore, the close contact reduces relative movement between the first bracket 1 and the second bracket 2, lowering the risk of loosening or slippage due to vibration or other external forces. The high friction between the close contact surfaces effectively absorbs and dissipates vibration energy, reducing unnecessary shaking or swaying. Additionally, the close contact connection simplifies and speeds up the assembly process, achieving an ideal fit without complex adjustments. Moreover, the size of the support surface 11 can be adjusted according to design requirements to increase the contact area between the first bracket 1 and the second bracket 2.
[0029] Furthermore, by splitting the aftertreatment mounting bracket into a first bracket 1 and a second bracket 2, the installation positions of the first bracket 1 and the second bracket 2, as well as the installation position of the second bracket 2 and the aftertreatment assembly 4, can be adjusted according to the size or weight of the aftertreatment assembly 4. It is understandable that, to enhance the connection strength between the aftertreatment mounting bracket, the aftertreatment assembly 4, and the longitudinal beams of the frame 3, the number of relevant brackets can be increased as needed.
[0030] It should be noted that, Figure 1 The direction of the inner side of the frame 3 shown refers to the direction toward the longitudinal axis of the vehicle, while the direction of the outer side of the frame 3 is opposite to that of the inner side of the frame 3, referring to the direction away from the longitudinal axis of the vehicle.
[0031] Therefore, by designing the post-processing fixing bracket as a split first bracket 1 and second bracket 2, and fixing the second bracket 2 to the first bracket 1 after it is attached to the support surface 11, the connection strength and stability between the first bracket 1 and the second bracket 2 can be guaranteed. Furthermore, the tightly fitting surfaces reduce the relative movement between the first bracket 1 and the second bracket 2, lowering the risk of loosening or slippage, and effectively absorbing and dissipating vibration energy, while also reducing unnecessary shaking or swaying. In addition, the close-fitting design makes the assembly process simpler and faster, achieving an ideal fit without complex adjustment steps. The post-processing fixing bracket of this embodiment has a simple and flexible structure, can be adapted to different post-processing assemblies 4, has strong versatility, and is extremely convenient to assemble.
[0032] In this embodiment, the first bracket 1 includes a first plate portion 12 and a second plate portion 13. The first plate portion 12 is adapted to be connected to the inner side of the frame 3. At the lower end of the first plate portion 12, a second plate portion 13 extends from the first plate portion 12 toward the inner side of the frame 3 to form the second plate portion 13, on which a support surface 11 is formed and connected to the second bracket 2.
[0033] like Figure 1 and Figure 2 As shown, the first bracket 1 is attached to the inner side of the frame 3 and connected to the frame 3, allowing for convenient adjustment of the connection position between the first bracket 1 and the frame 3 according to different aftertreatment assemblies 4. Furthermore, the second plate portion 13 extends towards the inner side of the frame 3 so that the second plate portion 13 can accommodate the dimensions of the aftertreatment assembly 4 along the vehicle width direction. Through the combination of multiple first brackets 1 and second brackets 2, the aftertreatment assembly can be fixed at different positions along the vehicle length direction, thus adapting to different specifications of aftertreatment assemblies 4 and exhibiting strong versatility. For example, in this embodiment, the aftertreatment fixing bracket shown in the attached figure is used to fix and support the rear of the aftertreatment assembly 4.
[0034] In this embodiment, the included angle between the first plate portion 12 and the second plate portion 13 is an obtuse angle, and the projection shape of the connecting portion between the first plate portion 12 and the second plate portion 13 on the side of the frame 3 is a straight line segment at an angle to the horizontal line.
[0035] like Figure 2 As shown, while the second plate portion 13 is inclined downward relative to the first plate portion 12, the front or rear side of the second plate portion 13 is flipped upward so that the inclined post-processing assembly 4 can be installed after the second plate portion 13 is attached to the first plate portion 12. In this embodiment, the front side of the second plate portion 13 is flipped upward for installing the post-processing assembly 4, which is arranged inclined downward from the front end to the rear end.
[0036] In this embodiment, a third plate portion 14 is formed on one side of the first plate portion 12, extending from the first plate portion 12 toward the inside of the frame 3. The third plate portion 14 is connected to the second plate portion 13, and the second bracket 2 is attached to the support surface 11 and abuts against the third plate portion 14.
[0037] like Figure 1 and Figure 2As shown, a third plate 14 extends from the front side of the first plate 12 toward the inner side of the frame 3, and the third plate 14 is connected to the second plate 13. Thus, the third plate 14 enhances the connection strength between the first plate 12 and the second plate 13. Furthermore, when the second bracket 2 is attached to the second plate 13, it abuts against the third plate 14. The third plate 14 serves as a limiting element during installation and also prevents the second bracket 2 from shifting on the second plate 13 during vehicle operation.
[0038] In this embodiment, on the side of the third plate portion 14 adjacent to the first plate portion 12, a flange portion 15 is formed by extending from the third plate portion 14 in a direction parallel to the side of the frame 3. The flange portion 15 is adapted to be connected to the frame 3.
[0039] like Figure 2 As shown, the third plate portion 14 extends from the side adjacent to the first plate portion 12 in a direction parallel to the side of the frame 3 to form a flange portion 15. The flange portion 15 is attached to the frame and connected to the frame 3, thereby enhancing the connection strength between the first bracket 1 and the frame 3, and ensuring the reliability of the connection between the aftertreatment bracket and the aftertreatment assembly 4. In this embodiment, both the first plate portion 12 and the flange portion 15 are provided with a third connecting portion 17, such as a threaded hole. A bolt is then passed through the threaded hole and the through hole of the frame 3 in sequence and tightened with a nut. Specifically, threaded holes spaced vertically are formed on the rear side of the first plate portion 12, and threaded holes spaced vertically are formed on the flange portion 15, thereby detachably connecting the periphery of the first bracket 1 to the frame 3.
[0040] In this embodiment, a first positioning part 16 and a first connecting part are provided on the support surface 11, and a second positioning part 21 for positioning and cooperating with the first positioning part 16 and a second connecting part 30 for fixed connection with the first connecting part are provided on the second bracket 2.
[0041] like Figure 2 As shown, the first positioning part 16 is a protruding positioning pin, and the second positioning part 21 is a positioning hole. When the second bracket 2 is connected to the first bracket 1, the positioning engagement between the first bracket 1 and the second bracket 2 is achieved through the cooperation between the positioning hole and the positioning pin. Then, the first connecting part and the second connecting part 30 are connected to achieve a fixed connection between the first bracket 1 and the second bracket 2. Both the first connecting part and the second connecting part 30 can be threaded holes, and connecting components such as bolts and nuts are used to fasten the first bracket 1 and the second bracket 2 together, facilitating installation and disassembly.
[0042] In this embodiment, an upwardly protruding boss 22 is formed on the second bracket 2, and a first mounting hole 23 is formed on the boss 22. The boss 22 is adapted to fix the heat insulation cover of the post-treatment assembly 4.
[0043] In the prior art, the heat shield is installed by fixing the heat shield bracket to the post-treatment assembly 4, which requires reinforcement of the post-treatment assembly 4, increasing its cost and weight. When the heat shield bracket is fixed from the post-treatment assembly 4 bracket, the heat shield bracket is generally large in size and weight. Therefore, in this embodiment, as... Figure 1 and Figure 2 As shown, a boss 22 is formed on the second bracket 2. The heat shield is mounted on top of the second bracket 2 through the boss 22 and connected to the heat shield through the first mounting hole 23 of the boss 22. This realizes the installation of the heat shield of the post-treatment assembly 4, solving the problem of the heat shield bracket being large and bulky, while reducing cost and weight. In addition, the front and rear sides of the support plate 24 are respectively provided with upwardly bent flanges, which can not only fix it to the heat shield, but also improve the strength of the support plate 24.
[0044] In this embodiment, the second bracket 2 includes a support plate 24, on both sides of the support plate 24 are opposite connecting lugs 25, two opposite connecting lugs 25 form a group, and at least two groups of connecting lugs 25 are formed on the support plate 24. The connecting lugs 25 are formed with second mounting holes 26 and are adapted to be connected to the post-processing assembly 4. The part of the support plate 24 away from the connecting lugs 25 is connected to the first bracket 1.
[0045] like Figure 2 As shown, the support plate 24 has opposing connecting lugs 25 on its front and rear sides, and the connecting lugs 25 protrude from the front and rear sides of the support plate 24. Two opposing connecting lugs 25 form a group, and the support plate 24 has at least two groups of connecting lugs 25. They are fixedly connected to the after-processing assembly 4 through the second mounting holes 26 on the connecting lugs 25. The presence of at least two groups of connecting lugs 25 on the support plate 24 ensures reliable connection between the support plate 24 and the after-processing assembly 4.
[0046] In this embodiment, a first hollow structure 27 is formed between at least two sets of connecting lugs 25 on the support plate 24, and a rib plate 31 connects between each set of two connecting lugs 25. Intersecting reinforcing ribs 28 are formed within the first hollow structure 27, and the ends of the reinforcing ribs 28 are connected to the inner wall of the first hollow structure 27 near the connecting lugs 25. Furthermore, a plurality of second hollow structures 29 are also formed on the support plate 24, and these are through-slot structures.
[0047] like Figure 2As shown, two sets of connecting lugs 25 are formed on the support plate 24. A first hollow structure 27 is formed between the two sets of connecting lugs 25 on the support plate 24, and a stiffening plate 31 connects the two connecting lugs 25 in each set. In this way, weight reduction is achieved without affecting the structural strength of the support plate 24, while avoiding the problem of weak strength between the two opposing connecting lugs 25. Moreover, to further enhance the structural strength of the mounting lugs, intersecting reinforcing ribs 28 are formed in the first hollow structure 27, and the ends of the reinforcing ribs 28 are connected to the inner wall of the first hollow structure 27 near the connecting lugs 25. In addition, the support plate 24, in addition to the portion where the connecting lugs 25 are formed, also has a second hollow structure 29. For example, in this embodiment, two second hollow structures 29 are formed on the support plate 24, both of which are through-slot structures, achieving weight reduction while ensuring structural strength.
[0048] On the other hand, embodiments of this utility model also provide a vehicle, including an after-treatment fixing bracket, wherein the vehicle frame 3 longitudinal beam is connected to the first bracket 1, and the vehicle after-treatment assembly 4 is connected to the second bracket 2.
[0049] Therefore, compared with the prior art, this utility model, by dividing the post-processing fixing bracket into a split first bracket 1 and a second bracket 2, and fixing the second bracket 2 to the first bracket 1 after it is attached to the support surface 11, can ensure the connection strength and stability between the first bracket 1 and the second bracket 2. Furthermore, the tightly fitted surfaces reduce the relative movement between the first bracket 1 and the second bracket 2, lowering the risk of loosening or slippage due to vibration or other external forces. It also effectively absorbs and dissipates vibration energy, while reducing unnecessary shaking or swaying. Moreover, the close-fitting connection makes the assembly process simpler and faster, achieving an ideal fit without complex adjustment steps. The post-processing fixing bracket of this embodiment has a simple and flexible structure, can adapt to different post-processing assemblies 4, has strong versatility, and is extremely convenient to assemble. Furthermore, by splitting the post-processing fixing bracket into the first bracket 1 and the second bracket 2, the installation positions between the first bracket 1 and the second bracket 2, as well as the installation position between the second bracket 2 and the post-processing assembly 4, can be adjusted according to the size or weight of the post-processing assembly 4.
[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.
[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.
[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A post-processing fixing bracket, characterized in that, include: A first bracket, having a support surface formed thereon, is adapted to be connected to a vehicle frame; A second bracket is attached to the support surface and detachably connected to the first bracket, and the second bracket is adapted to be connected to the post-processing assembly; The first bracket includes: a first plate portion adapted to be connected to the inner side of the vehicle frame; and a second plate portion extending from the first plate portion toward the inner side of the vehicle frame at the lower end of the first plate portion to form a second plate portion, wherein the second plate portion has the support surface formed thereon and is connected to the second bracket. On one side of the first plate portion, a third plate portion extends from the first plate portion toward the inside of the frame to form a third plate portion, and the third plate portion is connected to the second plate portion. The second bracket is attached to the support surface and abuts against the third plate portion. On the side of the third plate portion adjacent to the first plate portion, a flange portion extends from the third plate portion in a direction parallel to the side of the frame to form a flange portion, which is adapted to be connected to the frame.
2. The post-processing fixing bracket according to claim 1, characterized in that, The included angle between the first plate and the second plate is an obtuse angle, and the projection shape of the connecting part between the first plate and the second plate on the side of the frame is a straight line segment at an angle to the horizontal line.
3. The post-processing fixing bracket according to claim 1, characterized in that, The support surface is provided with a first positioning part and a first connecting part, and the second bracket is provided with a second positioning part for positioning and cooperating with the first positioning part and a second connecting part for fixed connection with the first connecting part.
4. The post-processing fixing bracket according to claim 1, characterized in that, The second bracket has an upwardly protruding boss and a first mounting hole is formed on the boss, the boss being adapted to fix the heat shield of the post-treatment assembly.
5. The post-processing fixing bracket according to claim 1, characterized in that, The second bracket includes a support plate, on both sides of which are opposite connecting lugs. Two opposite connecting lugs form a group, and at least two groups of connecting lugs are formed on the support plate. The connecting lugs are provided with second mounting holes and are adapted to be connected to the after-processing assembly. The portion of the support plate away from the connecting lugs is connected to the first bracket.
6. The post-processing fixing bracket according to claim 5, characterized in that, The portion between at least two sets of connecting lugs on the support plate has a first hollow structure and a reinforcing plate is connected between each set of two connecting lugs. Intersecting reinforcing ribs are formed in the first hollow structure and the ends of the reinforcing ribs are connected to the positions adjacent to the connecting lugs. The support plate also has a plurality of second hollow structures, which are through-slot structures.
7. A vehicle, characterized in that, The vehicle includes an aftertreatment mounting bracket as described in any one of claims 1 to 6, wherein the vehicle's frame longitudinal beam is connected to the first bracket, and the vehicle's aftertreatment assembly is connected to the second bracket.