Exhaust silencer mounting structure
By incorporating structures such as raised strips, L-shaped fixing brackets, and support frames on the exhaust muffler, the problems of muffler loosening and inconvenient disassembly during vehicle vibrations are solved, achieving stable connection and convenient disassembly of the muffler, reducing the risk of air leakage and maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN YALONG NEW HIGH TEMPERATURE MATERIAL CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-05-19
AI Technical Summary
Existing exhaust mufflers are prone to loosening or deformation of the exhaust pipe during long-term bumpy driving of motor vehicles, resulting in unstable installation and inconvenient disassembly.
The muffler body is fixed to the vehicle frame using a structure consisting of raised bars, L-shaped fixing brackets, support brackets, and connecting components. The position is adjusted by screws and locking bolts, a sealing component is installed to prevent air leakage, and a sealing component is designed at the end of the muffler body for easy maintenance.
It improves the installation stability and disassembly convenience of the muffler, reduces the risk of air leakage at the connection points, and simplifies the later maintenance process.
Smart Images

Figure CN224260430U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of exhaust muffler technology, specifically the exhaust muffler installation structure. Background Technology
[0002] The exhaust muffler is a key component installed at the end of the engine exhaust system. Through a special structural design, it absorbs, reflects, or interferes with sound waves, mainly used to reduce the noise generated during the exhaust process, while optimizing engine performance and meeting environmental protection requirements.
[0003] Existing exhaust mufflers include resistive mufflers, reactive mufflers, and composite mufflers, which are widely used in motor vehicles and industrial equipment. Through long-term use and observation, it has been found that exhaust mufflers are installed at the end of the exhaust pipe. When the muffler is installed on the exhaust pipe of a motor vehicle, it is usually fixed to the tail of the exhaust pipe by welding or using clamps. This results in the muffler being suspended after installation. During long-term bumpy driving of the motor vehicle, the connection between the suspended muffler and the exhaust pipe may loosen or the exhaust pipe may deform.
[0004] Therefore, this utility model provides an exhaust muffler mounting structure. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, an exhaust muffler mounting structure is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The exhaust muffler installation structure of this utility model includes an exhaust pipe; the end of the exhaust pipe is connected to a muffler body; the side wall of the muffler body is provided with a protruding strip; an L-shaped fixing bracket is fixed to the protruding strip by screws; a support frame is connected to the side wall of the L-shaped fixing bracket; a connecting component is provided on the support frame; a sealing component is provided at the end of the muffler body; a sealing component is provided on the exhaust pipe; a reinforcing component and a stabilizing component are provided on the L-shaped fixing bracket; through the above structure, by setting the protruding strip, the L-shaped fixing bracket and the support frame, the muffler body can be connected and fixed to the vehicle frame, thereby improving the stability of the position of the muffler body, and at the same time improving the convenience of disassembling the muffler body later.
[0007] Preferably, the connecting assembly includes a pair of through slots; the pair of through slots are symmetrically opened on the support frame; a locking bolt is installed in the through slot; a nut is threaded onto the locking bolt; and an anti-slip component is provided on the locking bolt. Through the above structure, the through slots, locking bolts, and nuts facilitate the positional adjustment between the L-shaped fixing frame and the support frame to accommodate different distance differences between the muffler body and the support frame.
[0008] Preferably, the anti-slip component includes a metal washer and a rubber washer; both the metal washer and the rubber washer are mounted on the locking bolt; with the above structure, after the nut is tightened, the rubber washer contacts the surface of the support frame, which can increase the friction between the nut and the support frame, thereby reducing the sliding of the locking bolt in the through groove, and the metal washer can reduce the damage to the rubber washer caused by the nut squeezing the rubber washer.
[0009] Preferably, the sealing assembly includes a threaded sleeve; the threaded sleeve is installed on the exhaust pipe; a sealing gasket is installed inside the threaded sleeve; with the above structure, the threaded sleeve and the sealing gasket can facilitate the sealing of the connection between the exhaust pipe and the muffler body, thereby reducing air leakage at the connection between the exhaust pipe and the muffler body.
[0010] Preferably, the sealing assembly includes a cover plate; the cover plate is threadedly connected to the end of the muffler body; a tail pipe is connected to the middle of the cover plate; through the above structure, the cover plate is threadedly engaged with the muffler body, which facilitates the later inspection and maintenance of the internal structure of the muffler body and improves the convenience of later maintenance.
[0011] Preferably, the stabilizing component includes a pair of clamps; the pair of clamps are symmetrically fixed to the L-shaped fixing frame; the clamps are arc-shaped structures; with the above structure, the clamps are connected to the L-shaped fixing frame, and the clamps support the muffler body from below, which can improve the stability of the muffler body after installation.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The exhaust muffler mounting structure of this utility model, by setting a protruding strip, an L-shaped fixing bracket and a support bracket, can connect and fix the muffler body to the vehicle frame, thereby improving the stability of the muffler body position and improving the convenience of disassembling the muffler body in the later stage.
[0014] 2. The exhaust muffler installation structure of this utility model, by setting through grooves, locking bolts and nuts, facilitates the positional adjustment between the L-shaped fixing frame and the support frame to adapt to different distance differences between the muffler body and the support frame. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a schematic diagram of the cooperation structure between the L-shaped fixing frame and the support frame in this utility model;
[0018] Figure 3This is a schematic diagram of the mating structure between the screw sleeve and the muffler body in this utility model;
[0019] Figure 4 This is a schematic diagram of the cooperation structure between the tailpipe and the muffler body in this utility model.
[0020] Legend:
[0021] 1. Exhaust pipe; 11. Muffler body; 12. Raised strip; 13. L-shaped fixing bracket; 14. Support bracket; 2. Through groove; 21. Locking bolt; 22. Nut; 3. Metal gasket; 31. Rubber gasket; 4. Threaded sleeve; 41. Sealing gasket; 5. Tailpipe; 51. Cover plate; 6. Clamp; 7. Reinforcing rib. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, the exhaust muffler installation structure includes an exhaust pipe 1; a muffler body 11 is connected to the end of the exhaust pipe 1; a protrusion 12 is provided on the side wall of the muffler body 11; an L-shaped fixing bracket 13 is fixed to the protrusion 12 by screws; a support bracket 14 is connected to the side wall of the L-shaped fixing bracket 13; a connecting component is provided on the support bracket 14; a sealing component is provided at the end of the muffler body 11; a sealing component is provided on the exhaust pipe 1; a reinforcing component and a stabilizing component are provided on the L-shaped fixing bracket 13; during operation, the support bracket 14 is fixed to the vehicle frame with bolts, and the L-shaped fixing bracket 13 and the support bracket 14 are fixed together by the connecting component, and then the muffler is installed. The muffler body 11 is fitted onto the end of the exhaust pipe 1, aligning the screw holes on the protrusion 12 with the fixing holes on the L-shaped mounting bracket 13. Then, screws are used to connect and fix the L-shaped mounting bracket 13 to the protrusion 12, thus completing the installation of the muffler body 11. When it is necessary to disassemble the muffler body 11, simply remove the screws on the L-shaped mounting bracket 13 to release the fixation of the muffler body 11 and pull it off the exhaust pipe 1. Through the above structure, with the protrusion 12, the L-shaped mounting bracket 13, and the support bracket 14, the muffler body 11 can be connected and fixed to the vehicle frame, thereby improving the stability of the position of the muffler body 11 and increasing the convenience of disassembling the muffler body 11 later.
[0025] like Figure 1 and Figure 2 As shown, the connecting assembly includes a pair of through slots 2; the pair of through slots 2 are symmetrically opened on the support frame 14; a locking bolt 21 is installed in the through slot 2; a nut 22 is threaded onto the locking bolt 21; and an anti-slip component is provided on the locking bolt 21. During operation, when connecting and fixing the L-shaped fixing frame 13 to the support frame 14, the mounting hole on the L-shaped fixing frame 13 is aligned with the through slot 2. Then, according to the actual position of the muffler body 11, the alignment position of the mounting hole and the through slot 2 is adjusted upwards or downwards. Then, the locking bolt 21 is passed through the mounting hole and the through slot 2 on the L-shaped fixing frame 13, and the end of the locking bolt 21 is locked by the nut 22. Thus, the L-shaped fixing frame 13 and the support frame 14 are connected and fixed. Through the above structure, the through slot 2, the locking bolt 21, and the nut 22 are provided to facilitate the position adjustment between the L-shaped fixing frame 13 and the support frame 14 to adapt to different distance differences between the muffler body 11 and the support frame 14.
[0026] like Figure 2 As shown, the anti-slip component includes a metal pad 3 and a rubber pad 31; both the metal pad 3 and the rubber pad 31 are mounted on the locking bolt 21; during operation, the rubber pad 31 and the metal pad 3 are placed on the locking bolt 21 in sequence, and then the nut 22 is tightened at the end of the locking bolt 21. At this time, the rubber pad 31 contacts one side of the support frame 14, while the metal pad 3 contacts the nut 22. Through the above structure, after the nut 22 is tightened, the rubber pad 31 contacts the surface of the support frame 14, which can increase the friction between the nut 22 and the support frame 14, thereby reducing the sliding of the locking bolt 21 in the through groove 2. The metal pad 3 can reduce the damage to the rubber pad 31 caused by the nut 22 squeezing it.
[0027] like Figure 1 and Figure 3 As shown, the sealing assembly includes a threaded sleeve 4; the threaded sleeve 4 is installed on the exhaust pipe 1; a sealing gasket 41 is installed inside the threaded sleeve 4; during operation, the threaded sleeve 4 is first put on the exhaust pipe 1, and then the muffler body 11 is connected to the exhaust pipe 1. After that, the threaded sleeve 4 and the muffler body 11 are locked together by threads. At this time, the sealing gasket 41 will seal the connection between the muffler body 11 and the exhaust pipe 1. Through the above structure, by setting the threaded sleeve 4 and the sealing gasket 41, it is easy to seal the connection between the exhaust pipe 1 and the muffler body 11, thereby reducing the leakage at the connection between the exhaust pipe 1 and the muffler body 11.
[0028] like Figure 4As shown, the sealing assembly includes a cover plate 51; the cover plate 51 is threadedly connected to the end of the muffler body 11; a tail pipe 5 is connected to the middle of the cover plate 51; during operation, after the muffler body 11 is installed, the cover plate 51 is threadedly connected to the end of the muffler body 11. When it is necessary to inspect the internal structure of the muffler body 11 later, the cover plate 51 can be removed from the end of the muffler body 11, so that the end of the muffler body 11 is in an open state. At this time, it is not necessary to disassemble the muffler body 11 to inspect the internal structure. Through the above structure, the cover plate 51 is threadedly engaged with the muffler body 11, which facilitates the inspection of the internal structure of the muffler body 11 and improves the convenience of later maintenance.
[0029] like Figure 1 and Figure 2 As shown, the stabilizing component includes a pair of clamps 6; the pair of clamps 6 are symmetrically fixed to the L-shaped fixing frame 13; the clamps 6 have an arc-shaped structure; during operation, when the L-shaped fixing frame 13 is connected to the support frame 14, the clamps 6 will be locked onto the surface of the muffler body 11, thereby supporting the muffler body 11 from below. Through the above structure, by setting the clamps 6 to connect the L-shaped fixing frame 13, and supporting the muffler body 11 from below with the clamps 6, the stability of the muffler body 11 after installation can be improved.
[0030] like Figure 1 As shown, the reinforcing component includes a reinforcing rib 7; the reinforcing rib 7 is disposed on the side wall of the L-shaped fixing frame 13; through the above structure, the reinforcing rib 7 is connected to the L-shaped fixing frame 13, which can improve the overall strength of the L-shaped structure of the L-shaped fixing frame 13 and reduce the occurrence of deformation and damage to the L-shaped fixing frame 13.
[0031] Working principle: The support frame 14 is fixed to the vehicle frame with bolts, and the L-shaped fixing bracket 13 is fixed to the support frame 14 with the connecting assembly. Then, the muffler body 11 is fitted onto the end of the exhaust pipe 1, aligning the screw holes on the protrusion 12 with the fixing holes on the L-shaped fixing bracket 13. Then, the L-shaped fixing bracket 13 is connected and fixed to the protrusion 12 with screws. At this point, the installation of the muffler body 11 is completed. When it is necessary to disassemble the muffler body 11, simply remove the screws on the L-shaped fixing bracket 13 to release the muffler. The muffler body 11 is fixed so that it can be pulled off the exhaust pipe 1. When connecting and fixing the L-shaped fixing bracket 13 to the support bracket 14, align the mounting hole on the L-shaped fixing bracket 13 with the through groove 2. Then, adjust the alignment of the mounting hole and the through groove 2 upwards or downwards according to the actual position of the muffler body 11. Then, pass the locking bolt 21 through the mounting hole and the through groove 2 on the L-shaped fixing bracket 13, and then tighten the end of the locking bolt 21 with the nut 22. The L-shaped fixing bracket 13 and the support bracket 14 can then be connected. After fixing, place the rubber gasket 31 and metal gasket 3 onto the locking bolt 21 in sequence, and then tighten the nut 22 onto the end of the locking bolt 21. At this time, the rubber gasket 31 will contact one side of the support frame 14, while the metal gasket 3 will contact the nut 22. First, put the threaded sleeve 4 onto the exhaust pipe 1, and then connect the muffler body 11 to the exhaust pipe 1. Then, tighten the threaded sleeve 4 and the muffler body 11 with threads. At this time, the sealing gasket 41 will seal the connection between the muffler body 11 and the exhaust pipe 1. After the body 11 is installed, the cover plate 51 is connected to the end of the muffler body 11 by threads. When it is necessary to inspect the internal structure of the muffler body 11 later, the cover plate 51 can be removed from the end of the muffler body 11 to open the end of the muffler body 11. At this time, it is not necessary to remove the muffler body 11 to inspect the internal structure. When the L-shaped fixing bracket 13 is connected to the support bracket 14, the clamp 6 will be locked on the surface of the muffler body 11, so that the muffler body 11 can be supported from below.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An exhaust muffler mounting structure, comprising an exhaust pipe (1); characterized in that: The exhaust pipe (1) is connected to a muffler body (11) at its end; the muffler body (11) has a protrusion (12) on its side wall; an L-shaped fixing bracket (13) is fixed to the protrusion (12) by screws; a support bracket (14) is connected to the side wall of the L-shaped fixing bracket (13); a connecting component is provided on the support bracket (14); a sealing component is provided at the end of the muffler body (11); a sealing component is provided on the exhaust pipe (1); and a reinforcing component and a stabilizing component are provided on the L-shaped fixing bracket (13).
2. The exhaust muffler mounting structure according to claim 1, characterized in that: The connecting assembly includes a pair of through slots (2); the pair of through slots (2) are symmetrically opened on the support frame (14); a locking bolt (21) is installed in the through slot (2); a nut (22) is threaded onto the locking bolt (21); and an anti-slip component is provided on the locking bolt (21).
3. The exhaust muffler mounting structure according to claim 2, characterized in that: The anti-slip component includes a metal pad (3) and a rubber pad (31); both the metal pad (3) and the rubber pad (31) are mounted on the locking bolt (21).
4. The exhaust muffler mounting structure according to claim 1, characterized in that: The sealing assembly includes a threaded sleeve (4); the threaded sleeve (4) is mounted on the exhaust pipe (1); a sealing gasket (41) is installed inside the threaded sleeve (4).
5. The exhaust muffler mounting structure according to claim 1, characterized in that: The sealing assembly includes a cover plate (51); the cover plate (51) is threaded to the end of the muffler body (11); and a tail pipe (5) is connected to the middle of the cover plate (51).
6. The exhaust muffler mounting structure according to claim 1, characterized in that: The stabilizing component includes a pair of clamps (6); the pair of clamps (6) are symmetrically fixed on the L-shaped fixing frame (13); the clamps (6) are arc-shaped.
7. The exhaust muffler mounting structure according to claim 1, characterized in that: The reinforcing component includes a reinforcing rib (7); the reinforcing rib (7) is disposed on the side wall of the L-shaped fixing frame (13).