Exhaust silencer of motorcycle engine

Abstract

The utility model discloses an exhaust silencer of a motorcycle engine, which belongs to the technical field of motorcycle engines, and comprises an exhaust pipe and a honeycomb silencer, an exhaust outer partition pipe is arranged on the outer wall of the exhaust pipe, an installation positioning ring is arranged at the rear part in the exhaust pipe, one end of the honeycomb silencer is inserted and limited in the installation positioning ring, and the other end of the honeycomb silencer is inserted and limited in the installation positioning ring. A filter cartridge is inserted into the tail end of the honeycomb silencer in a limiting mode, a filter screen is arranged in the filter cartridge, a tail end sleeve is arranged on the outer wall of the tail end of the exhaust outer partition pipe and fixed to the exhaust outer partition pipe through a screw, and a tail end exhaust pipe transversely penetrates through the middle of the tail end sleeve. The honeycomb silencer, the filter cartridge and the filter screen in the exhaust pipe can be conveniently taken out, the honeycomb silencer and the filter screen can be conveniently and regularly cleaned, and the silencing effect and the environment-friendly effect of the engine exhaust pipe are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle engine technology, specifically to a motorcycle engine exhaust muffler. Background Technology

[0002] Engine noise primarily originates from the pulse noise generated at the exhaust port. Large engines have high exhaust volumes and temperatures, resulting in exhaust noise with a significant amount of mid-to-low frequency components. This noise travels over long distances, severely disrupting the normal lives of nearby residents. Typically, to reduce exhaust noise, a honeycomb muffler is installed at the tail end of the exhaust pipe. However, existing mufflers are usually bolted inside the exhaust pipe, making subsequent cleaning and maintenance inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a motorcycle engine exhaust muffler to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes an exhaust pipe and a honeycomb muffler. An external exhaust baffle is provided on the outer wall of the exhaust pipe. A mounting positioning ring is provided at the rear of the exhaust pipe. One end of the honeycomb muffler is inserted and limited within the mounting positioning ring. A filter cylinder is inserted and limited at the tail end of the honeycomb muffler. A filter screen is provided inside the filter cylinder. A tail end sleeve is provided on the outer wall of the tail end of the external exhaust baffle. The tail end sleeve is fixed to the external exhaust baffle by screws. A tail end exhaust pipe extends transversely through the middle of the tail end sleeve. The inner end of the tail end exhaust pipe tightly abuts against the interior of one end of the filter cylinder and is used to constrain the installation position of the filter screen.

[0005] Preferably, a heat insulation cavity is provided between the exhaust outer diaphragm and the exhaust pipe, and both ends of the exhaust outer diaphragm and the exhaust pipe are sealed.

[0006] Preferably, a first circular step is provided on the inner side of the mounting positioning ring, and the front end of the honeycomb silencer is tightly dripped onto the first circular step;

[0007] A sealing ring is fixedly provided on the outer wall of the honeycomb muffler. The outer wall of the sealing ring is attached to the inner wall of the exhaust pipe, and its edge is tightly attached to the edge of the mounting positioning ring.

[0008] Preferably, a second annular step is provided inside the tail end of the honeycomb silencer, and one end of the filter cylinder is tightly pressed against the second annular step.

[0009] Preferably, the filter cylinder has a third annular step inside, and one end of the filter screen is tightly pressed against the third annular step.

[0010] Preferably, the outer wall of the filter screen is provided with two guide blocks, and the inside of the filter cylinder is provided with two guide grooves that match the guide blocks. When one end of the tail exhaust pipe is inserted into the inside of the filter cylinder, one end of the tail exhaust pipe abuts against the two guide blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. When using this utility model, loosen the screws that fix the tail end sleeve during disassembly, and the honeycomb muffler, filter cylinder and filter screen that are plugged and connected together can be taken out from the exhaust pipe. The honeycomb muffler is fixed and sealed inside the exhaust pipe by the plug-in sealing installation method, which facilitates regular cleaning of the honeycomb muffler and filter screen, and makes it convenient to clean the honeycomb muffler and filter screen during later use.

[0013] 2. When this utility model is used, a filter cylinder is set at the tail end inside the honeycomb muffler. When the muffled exhaust gas enters the filter cylinder, it filters the exhaust gas discharged from the engine through the exhaust gas filter screen set inside the filter cylinder, thereby improving the environmental protection effect of the motorcycle engine. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a top sectional view of the overall structure of this embodiment;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional planar structure of this embodiment;

[0017] Figure 3 This is an example. Figure 2 A schematic diagram of the enlarged structure A in the diagram;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter cylinder and filter screen in this embodiment.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Exhaust outer diaphragm; 11. Heat insulation cavity; 2. Exhaust pipe; 3. Mounting positioning ring; 31. First circular step; 4. Honeycomb silencer; 41. Sealing ring; 42. Second circular step; 5. Tail end sleeve; 51. Screw; 6. Tail end exhaust pipe; 7. Filter cartridge; 71. Third circular step; 72. Guide groove; 8. Filter screen; 81. Guide block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a motorcycle engine exhaust muffler, including an exhaust pipe 2 and a honeycomb muffler 4. An exhaust outer partition pipe 1 is provided on the outer wall of the exhaust pipe 2. An installation positioning ring 3 is provided at the rear of the interior of the exhaust pipe 2. One end of the honeycomb muffler 4 is inserted and limited inside the installation positioning ring 3. A filter cylinder 7 is inserted and limited at the tail end of the honeycomb muffler 4. A filter screen 8 is provided inside the filter cylinder 7. A tail end sleeve 5 is provided on the outer wall of the tail end of the exhaust outer partition pipe 1. The tail end sleeve 5 is fixed to the exhaust outer partition pipe 1 by screws 51. A tail end exhaust pipe 6 is transversely penetrating the middle part of the tail end sleeve 5. The inner end of the tail end exhaust pipe 6 is tightly pressed against the interior of one end of the filter cylinder 7 and is used to constrain the installation position of the filter screen 8.

[0023] The honeycomb muffler 4 is inserted into the exhaust pipe 2 through the mounting positioning ring 3 inside the exhaust pipe 2, and is connected to the exhaust pipe 2 channel. The gas discharged from the engine enters the honeycomb muffler 4 through the exhaust pipe 2 for noise reduction. The exhaust gas is filtered by the filter screen 8 inside the filter cylinder 7 inserted at the tail end of the honeycomb muffler 4, which is made of stainless steel. The tail end sleeve 5 is fitted on the outer wall of the exhaust outer partition pipe 1 and is connected to the tail end exhaust pipe 6. One end of the tail end exhaust pipe 6 is inserted and pressed against the inside of the filter cylinder 7 and is connected to it. The honeycomb muffler 4 and filter cylinder 7 are fixedly installed inside the exhaust pipe 2. When disassembling, loosen the screw 51 that fixes the tail end sleeve 5, and the honeycomb muffler 4, filter cylinder 7 and filter screen 8 that are inserted and connected together can be taken out from the exhaust pipe 2. This makes it convenient to clean the honeycomb muffler 4 and filter screen regularly, ensuring the noise reduction effect of the engine exhaust pipe 2 and the environmental protection effect.

[0024] More preferably, a heat insulation cavity 11 is provided between the exhaust outer diaphragm 1 and the exhaust pipe 2, and both ends of the exhaust outer diaphragm 1 and the exhaust pipe 2 are sealed.

[0025] The heat insulation cavity 11 set between the exhaust outer diaphragm 1 and the exhaust pipe 2 can reduce the heat conduction from the exhaust pipe 2 to the exhaust outer diaphragm 1, reduce the external temperature of the overall exhaust device, and prevent burns to the driver.

[0026] More preferably, a first circular step 31 is provided on the inner side of the mounting positioning ring 3, and the front end of the honeycomb silencer 4 is tightly dripped onto the first circular step 31;

[0027] A sealing ring 41 is fixedly installed on the outer wall of the honeycomb muffler 4. The outer wall of the sealing ring 41 is attached to the inner wall of the exhaust pipe 2, and its edge is tightly attached to the edge of the mounting positioning ring 3.

[0028] The installation position of the honeycomb muffler 4 is constrained by the first circular step 31 set on the inner side of the installation positioning ring 3, and the connection between the honeycomb muffler 4 and the installation positioning ring 3 is sealed. Then, the sealing ring 41 set on the outer wall of the honeycomb muffler 4 is attached to the inner wall of the exhaust pipe 2, and its edge is attached to the edge of the installation positioning ring 3, which further improves the sealing effect at the connection between the honeycomb muffler 4 and the installation positioning ring 3 and prevents the exhaust gas from leaking. The sealing ring 41 is made of stainless steel.

[0029] In a further preferred embodiment, a second annular step 42 is provided inside the tail end of the honeycomb silencer 4, and one end of the filter cylinder 7 is tightly pressed against the second annular step 42.

[0030] The second annular step 42 set inside the tail end of the honeycomb muffler 4 constrains the installation position of the filter cartridge 7 inside the honeycomb muffler 4 and seals the connection.

[0031] More preferably, the filter cylinder 7 has a third annular step 71 inside, and one end of the filter screen 8 is tightly pressed against the third annular step 71;

[0032] The third annular step 71 set inside the filter cylinder 7 constrains the installation position of the filter screen 8 inserted inside the filter cylinder 7.

[0033] More preferably, the outer wall of the filter screen 8 is provided with two guide blocks 81, and the inside of the filter cylinder 7 is provided with two guide grooves 72 that match the guide blocks 81. When one end of the tail exhaust pipe 6 is inserted into the inside of the filter cylinder 7, one end of the tail exhaust pipe 6 abuts against the two guide blocks 81.

[0034] The guide block 81, which is set on the outer wall of the filter screen 8, is used to guide the filter screen 8 to be installed inside the filter cylinder 7. The guide block is inserted into the guide groove 72 and the outer end is located at the opening of the guide groove 72. The filter screen 8 can be constrained and fixed inside the filter cylinder 7 by the pressure installed at one end of the exhaust pipe 6.

[0035] One specific application of this embodiment is: when it is necessary to clean the inside of the engine exhaust pipe 2, loosen the multiple screws 51 used to fix the tail end sleeve 5, disassemble the tail end sleeve 5 from the tail end exhaust pipe 6, and lose the pressure on the filter cartridge 7, so that the filter cartridge 7 and the honeycomb muffler 4 lose the pressure, and the honeycomb muffler 4, the filter cartridge 7 and the filter screen 8 that are installed together can be taken out from the exhaust pipe 2.

[0036] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A motorcycle engine exhaust muffler, comprising an exhaust pipe (2) and a honeycomb muffler (4), characterized in that: The outer wall of the exhaust pipe (2) is provided with an exhaust outer partition pipe (1), and the rear of the exhaust pipe (2) is provided with an installation positioning ring (3). One end of the honeycomb muffler (4) is inserted into and limited inside the installation positioning ring (3). The tail end of the honeycomb muffler (4) is limited and inserted with a filter cylinder (7). The filter cylinder (7) is provided with a filter screen (8). The outer wall of the tail end of the exhaust outer partition pipe (1) is provided with a tail end sleeve (5). The tail end sleeve (5) is fixed on the exhaust outer partition pipe (1) by screws (51). The middle part of the tail end sleeve (5) is transversely penetrated by a tail end exhaust pipe (6). The inner end of the tail end exhaust pipe (6) is tightly pressed against the inner end of one end of the filter cylinder (7) and is used to constrain the installation position of the filter screen (8).

2. The motorcycle engine exhaust muffler according to claim 1, characterized in that: A heat insulation cavity (11) is provided between the exhaust outer diaphragm (1) and the exhaust pipe (2), and the two ends of the exhaust outer diaphragm (1) and the exhaust pipe (2) are sealed.

3. A motorcycle engine exhaust muffler according to claim 1, characterized in that: The inner side of the mounting positioning ring (3) is provided with a first circular step (31), and the front end of the honeycomb silencer (4) is tightly dripped onto the first circular step (31); A sealing ring (41) is fixedly provided on the outer wall of the honeycomb muffler (4). The outer wall of the sealing ring (41) is attached to the inner wall of the exhaust pipe (2), and its edge is tightly attached to the edge of the mounting positioning ring (3).

4. A motorcycle engine exhaust muffler according to claim 1, characterized in that: The honeycomb silencer (4) has a second annular step (42) inside its tail end, and one end of the filter cylinder (7) is tightly pressed against the second annular step (42).

5. A motorcycle engine exhaust muffler according to claim 4, characterized in that: The filter cylinder (7) has a third annular step (71) inside, and one end of the filter screen (8) is tightly pressed against the third annular step (71).

6. A motorcycle engine exhaust muffler according to claim 1, characterized in that: The filter screen (8) has two guide blocks (81) on its outer wall. The filter cylinder (7) has two guide grooves (72) that match the guide blocks (81) inside. When one end of the tail exhaust pipe (6) is inserted into the filter cylinder (7), one end of the tail exhaust pipe (6) abuts against the two guide blocks (81).

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