Exhaust system assembly fixation structure
By employing a combination of sliding and threaded connections in the automotive exhaust system, the problem of the catalytic converter being difficult to disassemble has been solved, enabling rapid disassembly and installation of the catalytic converter, improving maintenance efficiency, reducing maintenance costs, and decreasing noise.
CN224550215UActive Publication Date: 2026-07-24NANJING QUANFENG AUTO PARTS CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING QUANFENG AUTO PARTS CO LTD
- Filing Date
- 2025-10-13
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
The catalytic converter in existing automotive exhaust systems is difficult to disassemble easily, resulting in low repair efficiency and high maintenance costs.
Method used
The combination of sliding and threaded connections, along with the design of a rotating fixed seat and a snap-fit cone, allows for quick disassembly and installation of the catalytic converter, while a shock-absorbing mechanism reduces muffler vibration.
Benefits of technology
It enables rapid disassembly and installation of the catalytic converter, improves maintenance efficiency, reduces maintenance costs, reduces noise, and enhances the practicality of the device.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN224550215U_ABST
Abstract
The utility model relates to the technical field of automobile exhaust treatment, disclose a kind of exhaust system assembly fixed structure, including catalytic cylinder, the left and right ends of catalytic cylinder are slidably connected with connecting pipe, the inner wall of left connecting pipe is threadedly connected with exhaust pipe one, the outer wall of connecting pipe is slidably connected with fixed frame, the outer wall of fixed frame is equipped with clamping groove, the inner wall of clamping groove is slidably connected with connecting rod, the adjacent one end of multiple connecting rods is fixedly connected with extrusion block one, the inner wall of connecting pipe is slidably connected with extrusion block two, the top of extrusion block two is fixedly connected with connecting plate one.In the utility model, rotate front side swivel block to make rotary cone right turn, disengage and engage with the engagement of cone, rotate the swivel block of side, pull out connecting rod outward, so that engagement cone moves down, rotate connecting pipe again, remove the fixing with exhaust pipe, catalytic cylinder is disassembled, carry out maintenance operation, reach the purpose of quick disassembly and installation catalytic cylinder.
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