Filter for efficiently filtering tail gas of motorcycle

By introducing a combination of a filter and a three-way catalytic converter into the motorcycle exhaust system, the problem that existing devices are difficult to handle harmful gases is solved, and efficient exhaust filtration and convenient maintenance are achieved.

CN223469313UActive Publication Date: 2025-10-24CHONGQING XINGRUIHAO TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422901193.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-24
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing motorcycle exhaust filter devices can only filter solid particles and are unable to effectively treat harmful gases.

Method used

A high-efficiency filtration system including a connecting section, an exhaust section, a filter and a three-way catalytic converter is designed. The exhaust gas first passes through multiple filters and then enters the three-way catalytic converter to convert harmful gases into harmless or low-harm substances.

Benefits of technology

It improves the filtering effect and efficiency of motorcycle exhaust, facilitates the cleaning or replacement of the filter and three-way catalytic converter, and ensures the sustainability of the filtering effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tail gas filtering, in particular to an efficient motorcycle tail gas filtering filter which comprises a connecting section used for being connected with a motorcycle exhaust pipe, and an exhaust section is arranged on the front side of the connecting section. A second spring is mounted at the rear end in the opening of the connecting section, a plurality of mounting rings are arranged on the front side of the second spring, a filter screen is fixed in the opening of each mounting ring, and a connecting plate is fixed between every two adjacent mounting rings; a three-way catalyst is installed on the front side of the filter screen, and the abutting rod can abut against the front end of the three-way catalyst. According to the motorcycle exhaust pipe, due to the arrangement of the connecting section, the exhaust section, the filter screens and the three-way catalyst, when motorcycle exhaust enters the connecting section through the exhaust pipe, the exhaust sequentially passes through the filter screens and the three-way catalyst, and the filter screens filter solid particles in the exhaust; and the three-way catalyst converts part of harmful gas into harmless or low-harm substances, so that the filtering effect and the filtering efficiency of the tail gas of the motorcycle are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas filter technology field, concretely is high -efficient filter motorcycle tail gas filter. BACKGROUND

[0002] Motorcycle tail gas refers to the exhaust gas produced in the combustion process of motorcycle engine and discharged into the atmosphere through the exhaust pipe, and the motorcycle tail gas contains various compounds such as solid suspended particles, carbon monoxide and sulfide, etc. Direct discharge will cause air pollution, so the existing motorcycle tail gas pipe is equipped with a filtering device.

[0003] The utility model discloses a novel motorcycle tail gas emission filter device, which comprises an exhaust pipe body, a left side of the exhaust pipe body is provided with an air inlet end, a right end of the exhaust pipe body is provided with an air outlet end, a first filter screen is arranged in the air inlet end of the exhaust pipe body, a second filter screen is arranged in the air outlet end of the exhaust pipe body, an upper end of the exhaust pipe body is clamped with an upper cover plate, a left side of a lower end of the upper cover plate is provided with a plurality of groups of first jack holes at equal intervals, a right side of the upper cover plate is provided with a plurality of groups of third filter screens at equal intervals, a lower end of the third filter screen is connected with a plurality of groups of first plug blocks at equal intervals, a lower end of the exhaust pipe body is clamped with a lower cover plate, a left side of an upper end of the lower cover plate is connected with a plurality of groups of fourth filter screens at equal intervals, an upper end of the fourth filter screen is connected with a plurality of groups of second plug blocks at equal intervals, a right side of the upper end of the lower cover plate is connected with a plurality of groups of second jack holes at equal intervals, the lower end of the first plug block is inserted into the second jack hole, the lower end of the second plug block is inserted into the first jack hole, the lower end of the third filter screen is located at the upper end of the lower cover plate, and the upper end of the fourth filter screen is located at the lower end of the upper cover plate. The upper end and the lower end of the exhaust pipe body are respectively clamped with the upper cover plate and the lower cover plate, so that the third filter screen and the fourth filter screen are easily inserted into the inside of the exhaust pipe body. The third filter screen and the fourth filter screen are arranged at equal intervals, which enhances the gas filtering effect inside the exhaust pipe body. The first plug block and the second plug block are arranged on the third filter screen and the fourth filter screen respectively, the lower end of the first plug block is inserted into the second jack hole, the lower end of the second plug block is inserted into the first jack hole, and the insertion is stable, so that the third filter screen and the fourth filter screen have good stability inside the exhaust pipe body and will not shake due to air flow impulse. The upper cover plate and the lower cover plate are clamped on the exhaust pipe body, which is convenient for disassembling and cleaning the third filter screen and the fourth filter screen inside, and also convenient for cleaning the inside of the exhaust pipe body. The utility model has the advantages of practicality and wide application.

[0004] While this novel motorcycle exhaust filter facilitates cleaning the interior of the exhaust pipe, it still presents a problem in practical use: it filters motorcycle exhaust solely through a pre-installed filter screen, which only filters solid particles and other pollutants present in the exhaust, making it difficult to filter out some harmful gases. In light of this, we propose a high-efficiency motorcycle exhaust filter. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a high-efficiency filtering motorcycle exhaust filter.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A high-efficiency motorcycle exhaust filter includes a connecting section for connecting to a motorcycle exhaust pipe. The interior of the connecting section is transparent, a threaded groove is formed at the front end opening of the connecting section, two housings are fixed on both sides of the front end outer wall of the connecting section, each housing has a sliding cavity formed therein, a slider is slidably mounted in each sliding cavity, a limiting rod is coaxially fixed to the slider, the ends of the limiting rod respectively extend through the outer ends of the housing and are slidably connected to the housing, and a first spring is sleeved on the outer side of the housing where the limiting rod is located.

[0008] An exhaust section is provided at the front end of the connecting section, a threaded ring threadedly connected to the thread groove is installed on the rear end face of the exhaust section, a stop rod is fixed in the opening of the rear end face of the exhaust section, two ear plates are fixed on both sides of the front end outer wall of the exhaust section, and the two ear plates are provided with connecting holes, and the front end of the limit rod can be plugged into the corresponding connecting hole;

[0009] A second spring is installed at the rear end of the opening of the connecting section, and multiple mounting rings are provided inside the connecting section and in front of the second spring. A filter is fixed in the opening of each mounting ring, and a connecting plate is fixed between two adjacent mounting rings. A three-way catalytic converter is installed in front of the filter inside the connecting section and on the front side, and the push rod can be pressed against the front end of the three-way catalytic converter.

[0010] Furthermore, a flange is coaxially fixed at the rear end of the outer wall of the connecting section, and a plurality of flange holes are opened on the flange.

[0011] Furthermore, a dial head is fixed at the rear end of the limiting rod, and the dial head is made of rubber material.

[0012] Furthermore, the exhaust section and the ear plate are an integrally formed structure, and both the exhaust section and the ear plate are made of stainless steel.

[0013] Furthermore, the overall shape of the mounting ring is annular, and the size of the mounting ring is adapted to the inner diameter of the opening of the connecting section.

[0014] Further, the opening inner diameter size of the connecting section is matched with the size of the three-way catalyst, and the rear end of the three-way catalyst abuts against the mounting ring located at the front side.

[0015] Further, the cross-sectional shape of the sliding block is circular, and the size of the sliding block is matched with the size inside the sliding cavity.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1. The utility model discloses a connecting section, an exhaust section, a filter screen and a three-way catalyst are arranged, when the motorcycle exhaust gas enters the connecting section through the exhaust pipe, the exhaust gas passes through multiple filter screens and three-way catalysts in turn, the multiple filter screens filter solid particles in the exhaust gas, and the three-way catalyst converts part of harmful gas into harmless or low-harm material, which improves the filtering effect and filtering efficiency of the motorcycle exhaust gas.

[0018] 2. The utility model discloses a second spring, a limiting rod and an ear plate are arranged, which facilitates the disassembly and assembly of the exhaust section, facilitates the removal of the filter screen and the three-way catalyst through the disassembly and assembly of the exhaust section, facilitates the cleaning or replacement of the filter screen and the three-way catalyst, meets the use demand and guarantees the filtering effect of the motorcycle exhaust gas. DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the whole explosion structure schematic diagram of the utility model;

[0021] Figure 3 It is the partial structure section view in the utility model;

[0022] Figure 4 It is the structure schematic diagram of the exhaust section in the utility model;

[0023] In the drawing:

[0024] 1, connecting section;10, flange plate;100, flange hole;11, shell;110, sliding cavity;12, sliding block;13, limiting rod;14, first spring;15, handle;

[0025] 2, exhaust section;20, threaded ring;21, abutting rod;22, ear plate;220, connecting hole;

[0026] 3, second spring;

[0027] 4, mounting ring;40, filter screen;41, connecting plate;

[0028] 5, three-way catalyst. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0030] The embodiment provides a technical scheme:

[0031] Please refer to Figures 1-4 As shown in FIG. 1, an efficient filtering motorcycle exhaust filter includes a connecting section 1 for connecting a motorcycle exhaust pipe, the inside of the connecting section 1 is in a through shape, a threaded groove is arranged at the opening of the front end of the connecting section 1, two housings 11 are fixed at the both sides of the outer wall of the front end of the connecting section 1, a sliding cavity 110 is arranged in each housing 11, a sliding block 12 is slidingly installed in each sliding cavity 110, a limiting rod 13 is coaxially fixed at the sliding block 12, the both ends of the limiting rod 13 extend through the both ends of the housing 11 and are slidingly connected with the housing 11, a first spring 14 for abutting against the sliding block 12 is sleeved on the outside of the limiting rod 13 in the housing 11, one end of the first spring 14 abuts against the sliding block 12, and the other end abuts against the inner wall of the rear end of the housing 11.

[0032] The front end of the connecting section 1 is provided with an exhaust section 2, a threaded ring 20 is installed at the rear end face of the exhaust section 2 and is threadedly connected with the threaded groove, an abutting rod 21 is fixed in the opening of the rear end face of the exhaust section 2, two ear plates 22 are fixed at the both sides of the outer wall of the front end of the exhaust section 2, connecting holes 220 are arranged in the two ear plates 22, and the front end of the limiting rod 13 can be inserted into and matched with the corresponding connecting hole 220.

[0033] A second spring 3 is installed at the opening inside the rear end of the connecting section 1, a plurality of mounting rings 4 are arranged in the inside of the connecting section 1 and located at the front side of the second spring 3, a filter screen 40 is fixed in the opening of each mounting ring 4, and a connecting plate 41 is fixed between the two adjacent mounting rings 4; a three-way catalyst 5 is installed at the front side of the filter screen 40 located at the front side in the inside of the connecting section 1, and the abutting rod 21 can abut against the front end of the three-way catalyst 5. When the exhaust section 2 is installed at the front end of the connecting section 1, the second spring 3 is extruded and shrinks.

[0034] In the embodiment, a flange plate 10 is coaxially fixed at the rear end of the outer wall of the connecting section 1, and a plurality of flange holes 100 are arranged in the flange plate 10. The flange holes 100 are arranged to facilitate the penetration of bolts, so that the connecting section 1 and the motorcycle exhaust pipe are connected by the bolts.

[0035] In the embodiment, the rear end of the limiting rod 13 is fixed with a knob 15 made of rubber material. The knob 15 facilitates pulling of the limiting rod 13, improving the convenience of operation.

[0036] In the embodiment, the exhaust section 2 and the lug plate 22 are integrally formed, and both the exhaust section 2 and the lug plate 22 are made of stainless steel. The integrally formed exhaust section 2 and lug plate 22 have better connection strength, ensuring the connection stability of the exhaust section 2 and the lug plate 22. The stainless steel material has the advantages of corrosion resistance and high strength, ensuring the connection stability and service life of the exhaust section 2 and the lug plate 22.

[0037] In the embodiment, the mounting ring 4 has a ring shape, and the size of the mounting ring 4 is matched with the opening inner diameter size of the connecting section 1. This design facilitates the mounting of the mounting ring 4 in the connecting section 1, ensuring the connection tightness between the mounting ring 4 and the inner cavity of the connecting section 1, and ensuring the filtering effect of the tail gas.

[0038] In the embodiment, the opening inner diameter size of the connecting section 1 is matched with the size of the three-way catalyst 5, and the rear end of the three-way catalyst 5 abuts against the mounting ring 4 on the front side. The matched sizes ensure the filtering effect of the tail gas by the three-way catalyst 5.

[0039] In the embodiment, the cross-sectional shape of the sliding block 12 is circular, and the size of the sliding block 12 is matched with the size inside the sliding cavity 110. This design facilitates smooth sliding of the sliding block 12 in the sliding cavity 110, ensuring the convenience of adjustment of the limiting rod 13.

[0040] It should be noted that the filter screen 40 in the embodiment is fixedly connected with the mounting ring 4 by welding, and the connecting plate 41 is fixedly connected with the adjacent two mounting rings 4 by welding. The welding fixation ensures the installation stability between the mounting ring 4, the connecting plate 41 and the filter screen 40, ensuring the stable use of the mounting ring 4, the connecting plate 41 and the filter screen 40.

[0041] In specific use, after the connecting section 1 is mounted on the motorcycle exhaust pipe through the flange plate 10, the tail gas enters the connecting section 1 through the motorcycle exhaust pipe, and simultaneously passes through the multiple filter screens 40 and moves forward. Under the filtering of the filter screens 40, the solid particles in the tail gas are filtered, the filtered tail gas passes through the three-way catalyst 5, part of the harmful gas in the tail gas is converted into harmless or low-harm substances, and finally the purified tail gas is discharged to the outside through the exhaust section 2.

[0042] When the exhaust section 2 needs to be disassembled, the user first pulls the two knobs 15 to the rear side, the knobs 15 drive the limiting rods 13 to move to the rear side, the limiting rods 13 drive the sliding blocks 12 to slide inside the shell 11, at this time the first spring 14 is compressed by the sliding block 12, so that the front end of the limiting rod 13 is disconnected from the connecting hole 220, at this time the limiting of the limiting rod 13 to the exhaust section 2 is removed; Next, the user rotates the exhaust section 2, when the threaded ring 20 is disconnected from the threaded groove, the exhaust section 2 is disassembled, and under the restoring elastic action of the second spring 3, the three-way catalyst 5 and the mounting ring 4 slide and protrude to the outside of the connecting section 1, the user can disassemble the three-way catalyst 5 and the mounting ring 4.

[0043] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high efficiency filtration motorcycle exhaust filter characterized by: The utility model relates to a connecting section (1) for connecting motorcycle exhaust pipe, the inside of connecting section (1) is through -like, the front end opening of connecting section (1) is provided with threaded groove, the both sides of the outer wall of the front end of connecting section (1) are fixed with two housings (11), each housing (11) is provided with sliding cavity (110), each sliding cavity (110) is provided with sliding block (12), the same shaft of sliding block (12) is fixed with limiting rod (13), the both ends of limiting rod (13) extend to the both ends outside of housing (11) respectively and are connected with housing (11) slidingly, the outside of limiting rod (13) in the inside of housing (11) is provided with first spring (14); The front end of connecting section (1) is equipped with exhaust section (2), the rear end surface of exhaust section (2) is installed with the threaded ring (20) of threaded connection with threaded groove, the rear end surface opening of exhaust section (2) is fixed with the resistance rod (21), the both sides of the outer wall of the front end of exhaust section (2) are respectively fixed with two ear plates (22), two ear plates (22) are provided with connecting hole (220), the front end of limiting rod (13) can be inserted with the corresponding connecting hole (220) and is matched, The inside of connecting section (1) and the front side of second spring (3) are equipped with a plurality of mounting rings (4), the opening of each mounting ring (4) is fixed with filter screen (40), the connecting plate (41) is fixed between the adjacent two mounting rings (4), the front side of filter screen (40) in the inside of connecting section (1) and the front side are installed with three-way catalyst (5), the resistance rod (21) can be tightly pressed on the front end of three-way catalyst (5).

2. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The rear end of the outer wall of connecting section (1) is fixed with flange (10) coaxially, a plurality of flange holes (100) are formed in flange (10).

3. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The rear end of limiting rod (13) is fixed with the knob (15), the knob (15) is made of rubber material.

4. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The exhaust section (2) and the ear plate (22) are integrally formed, and the exhaust section (2) and the ear plate (22) are made of stainless steel material.

5. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The overall shape of the mounting ring (4) is annular, and the size of the mounting ring (4) is adapted to the inner diameter size of the opening of the connecting section (1).

6. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The opening inner diameter size of the connecting section (1) is adapted to the size of the three-way catalyst (5), and the rear end of the three-way catalyst (5) is tightly pressed on the mounting ring (4) on the front side.

7. The high efficiency filtration motorcycle exhaust filter of claim 1, wherein: The cross-sectional shape of the sliding block (12) is circular, and the size of the sliding block (12) is adapted to the size of the sliding cavity (110) inside.

Citation Information

Patent Citations

  • Novel motorcycle exhaust emission filtering device

    CN215109089U