Post-treatment purifier adapter bracket
By using a converter bracket welded together from three sheet metal parts, the problems of bulkiness and high cost of traditional brackets are solved, achieving the effects of lightweighting and cost reduction.
Patent Information
- Application Number
- CN202520556290.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional post-treatment purifier adapter brackets are bulky and difficult to meet the requirements for lightweight design; more installation surfaces also increase costs.
The adapter bracket is composed of three sheet metal parts welded together, including an L-shaped sheet metal part, a straight sheet metal part, and a triangular sheet metal part. They are connected by mortise and tenon structure and are designed with waist-shaped holes to absorb assembly errors, thereby achieving lightweighting and cost reduction.
This reduces the weight of parts, lowers costs, facilitates installation, eliminates assembly errors and stress, and improves reliability.
Smart Images

Figure CN223767597U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive exhaust aftertreatment technology, specifically relating to an aftertreatment purifier adapter bracket. Background Technology
[0002] With increasingly stringent vehicle emission standards, after-treatment systems are becoming more compact in their design to meet these requirements. The pre- and post-treatment purifiers are designed with a tightly coupled structure, and then connected to the engine and transmission block via a series of brackets to secure the after-treatment system. Traditional adapter brackets are single-piece castings, resulting in bulky structures that fail to meet the lightweight design requirements of after-treatment purifiers. Furthermore, the more mounting surfaces an adapter bracket has, the more complex the casting bracket structure becomes, leading to higher costs. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a post-treatment purifier adapter bracket. This adapter bracket is composed of three sheet metal parts welded together. An L-shaped sheet metal part connects the post-treatment purifier body bracket and the transition bracket, while a straight sheet metal part connects the gearbox cylinder block. Both the L-shaped and straight sheet metal parts are designed with tenons and mortises. A triangular sheet metal part reinforces the middle of the L-shaped and straight sheet metal parts, facilitating product weight reduction and cost reduction. The L-shaped and straight sheet metal parts have oblong holes to absorb assembly errors from the three mounting surfaces.
[0004] To achieve the above technical objectives, the technical solution adopted in this utility model embodiment is as follows:
[0005] A post-treatment purifier adapter bracket includes a straight sheet metal part, a triangular sheet metal part, and an L-shaped sheet metal part. The L-shaped sheet metal part is assembled and welded with the straight sheet metal part to form a three-dimensional bracket with three mounting surfaces. The first mounting surface is formed on the straight sheet metal part, and the second and third mounting surfaces are formed on the L-shaped sheet metal part. The triangular sheet metal part is simultaneously connected to the first mounting surface, the second mounting surface, or the third mounting surface.
[0006] Furthermore, the lower end of the L-shaped sheet metal part is joined to the straight sheet metal part by a mortise and tenon structure, and both the straight sheet metal part and the L-shaped sheet metal part have waist-shaped holes.
[0007] Furthermore, the first mounting surface is used to install the gearbox, the second mounting surface is used to install the air purifier body bracket, and the third mounting surface is used to install the engine transition bracket.
[0008] Furthermore, the included angle between the second mounting surface and the third mounting surface is 90° to 150°, the included angle between the first mounting surface and the second mounting surface is 85° to 95°, and the included angle between the first mounting surface and the third mounting surface is 85° to 95°.
[0009] The beneficial effects of the technical solution provided by this utility model embodiment are:
[0010] This utility model's adapter bracket enables weight reduction of parts, contributing to automobile lightweighting. The adapter bracket is simple to form and easy to process, reducing part costs. It is also easy to install, eliminating assembly errors and stress. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of the post-treatment purifier adapter bracket in an embodiment of this utility model.
[0012] Figure 2 yes Figure 1 A schematic diagram of the arrangement of the three mounting surfaces of the mid-to-post-treatment purifier adapter bracket.
[0013] Explanation of reference numerals in the attached drawings: 1-Straight sheet metal part; 2-Triangular sheet metal part; 3-L-shaped sheet metal part; 1-1-First mounting surface; 3-1-Second mounting surface; 3-2-Third mounting surface; 4-Oval hole. Detailed Implementation
[0014] In the description of this utility model, it should be understood that the directional terms such as "inner" and "outer", "upper" and "lower", "left" and "right" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not 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 limiting the scope of protection of this utility model.
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0016] Example 1
[0017] like Figure 1 and Figure 2As shown, a post-treatment purifier adapter bracket includes a straight sheet metal part 1, a triangular sheet metal part 2, and an L-shaped sheet metal part 3. The L-shaped sheet metal part 3 is assembled and welded with the straight sheet metal part 1 to form a three-dimensional bracket with three mounting surfaces. The first mounting surface 1-1 is formed on the straight sheet metal part 1, the second mounting surface 3-1 and the third mounting surface 3-2 are formed on the L-shaped sheet metal part 3, and the triangular sheet metal part 2 is simultaneously connected to the first mounting surface 1-1 and the second mounting surface 3-1 or the third mounting surface 3-2.
[0018] Specifically, as one implementation method, the triangular sheet metal part 2 is simultaneously welded to the first mounting surface 1-1 and the second mounting surface 3-1.
[0019] In another implementation, the triangular sheet metal part 2 is simultaneously welded to both the first mounting surface 1-1 and the third mounting surface 3-2.
[0020] The lower end of the L-shaped sheet metal part 3 is joined to the straight sheet metal part 1 by a mortise and tenon structure. Both the straight sheet metal part 1 and the L-shaped sheet metal part 3 have oblong holes 4. The three mounting surfaces enable the adapter bracket to achieve assembly compensation in the X, Y and Z axes. Furthermore, the adapter bracket is easy to install, can eliminate assembly errors and assembly stress, and improves reliability.
[0021] Specifically, the straight sheet metal part 1 is provided with a tenon and a mortise, the second mounting surface 3-1 of the L-shaped sheet metal part 3 is provided with a mortise and is assembled with the tenon of the straight sheet metal part 1, and the third mounting surface 3-2 of the L-shaped sheet metal part 3 is provided with a tenon and is assembled with the mortise and tenon of the straight sheet metal part 1. The adapter bracket has a simple forming process for a single sheet metal part, reducing the development cost of the parts. In addition, the lower end of the L-shaped sheet metal part 3 is also welded to the straight sheet metal part 1.
[0022] The first mounting surface 1-1 is used to install the gearbox, the second mounting surface 3-1 is used to install the air purifier body bracket, and the third mounting surface 3-2 is used to install the engine transition bracket.
[0023] The included angle between the second mounting surface 3-1 and the third mounting surface 3-2 is 90° to 150°, the included angle between the first mounting surface 1-1 and the second mounting surface 3-1 is 85° to 95°, and the included angle between the first mounting surface 1-1 and the third mounting surface 3-2 is 85° to 95°.
[0024] In one embodiment, the included angle between the second mounting surface 3-1 and the third mounting surface 3-2 is 93°, the included angle between the first mounting surface 1-1 and the second mounting surface 3-1 is 92°, and the included angle between the first mounting surface 1-1 and the third mounting surface 3-2 is 95°.
[0025] Among them, the thickness of the straight sheet metal part 1 is 8mm, the thickness of the triangular sheet metal part 2 is 4mm, and the thickness of the L-shaped sheet metal part 3 is 6mm.
[0026] The tenon and mortise width on the straight sheet metal part 1 and the L-shaped sheet metal part 3 is 20mm.
[0027] The oblong holes 4 on the straight sheet metal part 1 and the L-shaped sheet metal part 3 of the adapter bracket are assembled with M10 bolts. The oblong holes 4 are 14mm×18mm in size and can absorb assembly errors of 2 to 4mm.
[0028] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A post-processing purifier adapter support, characterized in that, The application relates to a three-dimensional bracket, which comprises a one-word-shaped metal plate (1), a triangular metal plate (2) and an L-shaped metal plate (3), the L-shaped metal plate (3) is assembled and welded with the one-word-shaped metal plate (1) to form a three-dimensional bracket with three installation surfaces, wherein a first installation surface (1-1) is formed on the one-word-shaped metal plate (1), a second installation surface (3-1) and a third installation surface (3-2) are formed on the L-shaped metal plate (3), and the triangular metal plate (2) is connected on the first installation surface (1-1) and the second installation surface (3-1) or the third installation surface (3-2) at the same time.
2. The aftertreatment cleaner adapter bracket of claim 1, wherein, The lower end of the L-shaped metal plate (3) is connected with the one-word-shaped metal plate (1) through a mortise and tenon structure, and the one-word-shaped metal plate (1) and the L-shaped metal plate (3) are both provided with a waist-shaped hole (4).
3. The aftertreatment cleaner adapter bracket of claim 1, wherein, The first installation surface (1-1) is used for installing a gearbox, the second installation surface (3-1) is used for installing a purifier body bracket, and the third installation surface (3-2) is used for installing an engine transition bracket.
4. The aftertreatment cleaner adapter bracket of claim 1, wherein, The included angle between the second installation surface (3-1) and the third installation surface (3-2) is 90-150 degrees, the included angle between the first installation surface (1-1) and the second installation surface (3-1) is 85-95 degrees, and the included angle between the first installation surface (1-1) and the third installation surface (3-2) is 85-95 degrees.