Post-treatment bottom plate flange positioning structure

By using slotted headless screws on the base plate flange, the problems of easy detachment and being pushed in by the locating pins are solved, ensuring the stability of the positioning function and the normal assembly of the device.

CN224187654UActive Publication Date: 2026-05-01WUXI WEIFU LIDA CATALYTIC CONVERTER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI WEIFU LIDA CATALYTIC CONVERTER
Filing Date
2025-05-29
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing post-treatment base plate flange locating pins are prone to falling off or being pushed in, which affects the installation process of the post-treatment device.

Method used

Slotted headless screws are used instead of locating pins and are fixed to the base plate flange by threaded connection. The latter half of the screw is a smooth rod section that is exposed on the base plate flange to facilitate mating with the mounting bracket.

Benefits of technology

It effectively prevents the positioning pins from falling off or shifting during transportation and installation, ensuring that the positioning function is not affected and that the assembly sequence and appearance of the post-processing device are not changed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a post-processing bottom plate flange positioning structure which comprises a bottom plate flange connected to a post-processing body. A plurality of through holes are formed in the bottom plate flange, and a nut is connected to the position, corresponding to each through hole, of the side, away from the mounting support, of the bottom plate flange; two threaded holes are further formed in the bottom plate flange; the threaded holes are distributed between two adjacent through holes; a slotted headless screw is connected to the threaded hole in the bottom plate flange; the front half section of the slotted headless screw is provided with an external thread which is used for being in threaded connection with a threaded hole in a bottom plate flange, and the rear half section of the slotted headless screw is a polished rod section which is exposed out of the bottom plate flange and faces one side of the mounting bracket. The post-processing bottom plate flange positioning pin solves the problem that an existing post-processing bottom plate flange positioning pin is prone to falling off and being jacked in, and meanwhile the original positioning function is guaranteed.
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Description

Technical Field

[0001] This utility model relates to a post-processing device, and more particularly to a post-processing base plate flange positioning structure. Background Technology

[0002] With increased domestic infrastructure investment and rapid development of the non-road industry, the demand for non-road after-treatment devices has been growing since the implementation of the National IV emission standard for non-road mobile machinery. Amid this rapid development, customer requirements for these devices are becoming increasingly stringent. Currently, most tractor after-treatment systems on the market use a vertical structure. Due to the weight of the after-treatment device, it is typically lifted by an overhead crane and placed onto a mounting bracket for installation. This installation process requires locating pins. Customers generally require the locating pins to be installed on the after-treatment device's base flange. However, there is a risk of the locating pins falling off during transportation. Furthermore, during installation, because the view is obstructed by the after-treatment device itself, the locating pins cannot be directly inserted into the locating holes of the mounting bracket and are instead pushed into the base flange by the mounting bracket. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a post-processing base plate flange positioning structure, solving the problems of easy detachment and being pushed in by existing post-processing base plate flange positioning pins, while ensuring the original positioning function. To achieve the above technical objectives, the technical solution adopted by this utility model embodiment is as follows:

[0004] This utility model embodiment provides a post-processing base plate flange positioning structure, including a base plate flange connected to the post-processing body;

[0005] Multiple through holes are provided on the base plate flange, and a nut is connected to each through hole on the side of the base plate flange away from the mounting bracket.

[0006] Two threaded holes are also provided on the base plate flange; the threaded holes are distributed between two adjacent through holes;

[0007] A slotted headless screw is connected to the threaded hole on the base plate flange; the front half of the slotted headless screw has external threads for threaded connection with the threaded hole on the base plate flange, and the rear half of the slotted headless screw is a smooth section that protrudes from the base plate flange and faces the mounting bracket.

[0008] Furthermore, the slotted headless screw has a slot at one end facing the mounting bracket.

[0009] Furthermore, the base plate flange has four through holes, which are evenly distributed.

[0010] Furthermore, the slotted headless screws are distributed in the middle of two adjacent through holes, and the two slotted headless screws are distributed on one diameter of the base plate flange.

[0011] Furthermore, the slotted headless screw has the specifications of M8×1.25×30, with an M8 thread on the front half and a Φ8 smooth rod section on the back half.

[0012] Furthermore, thread-locking adhesive is applied to the external threads of the front half of the slotted headless screw.

[0013] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0014] 1) The slotted headless screws are fixed to the base plate flange by threads, eliminating the risk of them falling off or being pushed in, effectively solving the problem that existing locating pins are easy to fall off and be pushed into the base plate flange.

[0015] 2) It ensures the original positioning function, does not affect the original assembly sequence of the post-processing device, and will not affect the appearance of the post-processing device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the post-processing base plate flange positioning structure in an embodiment of this utility model.

[0017] Figure 2 This is an assembly diagram of the post-processing base plate flange positioning structure and mounting bracket in an embodiment of this utility model. Detailed Implementation

[0018] 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.

[0019] like Figure 1 As shown in the figure, the post-processing base plate flange positioning structure proposed in this embodiment of the utility model includes a base plate flange 2 connected to the post-processing body 1; the base plate flange 2 can be connected to the post-processing body 1 by welding.

[0020] Multiple through holes 201 are provided on the base plate flange 2. On the side of the base plate flange 2 away from the mounting bracket 4, a nut 202 is connected to each through hole 201.

[0021] Two threaded holes 203 are also provided on the base plate flange 2; the threaded holes 203 are distributed between two adjacent through holes 201;

[0022] A slotted headless screw 3 is connected to the threaded hole 203 on the base plate flange 2; the front half of the slotted headless screw 3 is provided with external threads for threaded connection with the threaded hole 203 on the base plate flange 2, and the rear half of the slotted headless screw 3 is a smooth rod section that protrudes from the base plate flange 2 and faces the mounting bracket 4.

[0023] Since the slotted headless screw 3 is connected to the base plate flange 2 by threads, the slotted headless screw 3 will not fall off the base plate flange 2 during transportation of the post-processing device;

[0024] like Figure 2 As shown, when the post-processing device needs to be placed on the mounting bracket 4 for installation, the slotted headless screw 3 extends into the original positioning hole on the mounting bracket 4, and the slotted headless screw 3 can act as a positioning pin. During the installation process, even if the slotted headless screw 3 is not aligned with the positioning hole on the mounting bracket 4, it will not be pushed back into the base plate flange 2 by the mounting bracket 4. This application changes the existing positioning hole on the base plate flange to a threaded hole and the positioning pin to a slotted headless screw 3, solving the problem that the positioning pin of the base plate flange is easy to move and be pushed back into the base plate flange.

[0025] Furthermore, the slotted headless screw 3 has a slot at one end facing the mounting bracket 4, so that the slotted headless screw 3 can be tightened into the threaded hole 203 on the base plate flange 2 by using a screwdriver.

[0026] Furthermore, the base plate flange 2 has four through holes 201, which are evenly distributed, so as to securely fix the base plate flange 2 and the mounting bracket 4 with bolts and to ensure that the force is evenly distributed.

[0027] Furthermore, the slotted headless screws 3 are distributed in the middle of two adjacent through holes 201, and the two slotted headless screws 3 are distributed on one diameter of the base plate flange 2; so as to better cooperate with the positioning holes on the mounting bracket 4.

[0028] Specifically, the slotted headless screw 3 has a specification of M8×1.25×30, with an M8 thread in the front half and a Φ8 smooth rod in the back half.

[0029] Furthermore, applying thread-locking adhesive to the external thread of the front half of the slotted headless screw 3 can prevent the slotted headless screw 3 from loosening.

[0030] This application replaces the existing locating pins with slotted headless screws, which can effectively prevent the locating pins from falling off or shifting during transportation and installation, ensuring the positioning function without affecting the original assembly sequence of the post-processing device.

[0031] 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 the embodiments, 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 base plate flange positioning structure, comprising a base plate flange (2) connected to a post-processing body (1); characterized in that, Multiple through holes (201) are provided on the base plate flange (2). On the side of the base plate flange (2) away from the mounting bracket (4), a nut (202) is connected to each through hole (201). Two threaded holes (203) are also provided on the base plate flange (2); the threaded holes (203) are distributed between two adjacent through holes (201); A slotted headless screw (3) is connected to the threaded hole (203) on the base plate flange (2); the front half of the slotted headless screw (3) is provided with external thread for threaded connection with the threaded hole (203) on the base plate flange (2), and the rear half of the slotted headless screw (3) is a smooth rod section that protrudes from the base plate flange (2) and faces the mounting bracket (4).

2. The post-processing base plate flange positioning structure as described in claim 1, characterized in that, The slotted headless screw (3) has a slot at one end facing the mounting bracket (4).

3. The post-processing base plate flange positioning structure as described in claim 1, characterized in that, The bottom plate flange (2) has four through holes (201) that are evenly distributed.

4. The post-processing base plate flange positioning structure as described in claim 3, characterized in that, The slotted headless screws (3) are located in the middle of two adjacent through holes (201), and the two slotted headless screws (3) are distributed on one diameter of the base plate flange (2).

5. The post-processing base plate flange positioning structure as described in any one of claims 1 to 4, characterized in that, The slotted headless screw (3) has a specification of M8×1.25×30, with an M8 thread in the front half and a Φ8 smooth rod in the back half.

6. The post-processing base plate flange positioning structure as described in any one of claims 1 to 4, characterized in that, Apply thread-locking adhesive to the external thread of the front half of the slotted headless screw (3).