Fuel oil outlet structure of motorcycle carburetor

The plug-in ring and clamping plate design of the motorcycle carburetor fuel outlet structure enables quick installation. Combined with the automatic cleaning of the catalytic coating and the convenient disassembly and assembly of the magnetic filter, it solves the problems of inconvenient carburetor installation, catalytic device failure and difficult filter cleaning, and improves installation stability and exhaust gas purification efficiency.

CN120759675APending Publication Date: 2025-10-10CHONGQING KAMA ELECTROMECHANICAL
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Patent Information

Application Number
CN202511219437.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

Traditional motorcycle carburetors are difficult to install, catalytic devices are prone to failure, and filters are difficult to quickly clean and maintain, resulting in unstable connections, reduced exhaust purification efficiency, and a dirty fuel system.

Method used

A motorcycle carburetor fuel outlet structure was designed, which adopts a plug-in ring and card plate structure to achieve quick installation, is equipped with a catalytic coating and a cleaning component for automatic cleaning, and uses a magnetic filter for convenient disassembly and filtration.

Benefits of technology

It enables fast and stable installation of the carburetor, maintains catalyst activity and exhaust gas purification effect, simplifies the maintenance process of the filter, and ensures the cleanliness and stability of the fuel system.

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Abstract

The invention relates to the technical field of motorcycle engine accessories, and discloses a motorcycle carburetor fuel oil outlet structure which comprises a carburetor body, the left side of the carburetor body is fixedly connected with a connecting assembly, the connecting assembly is used for promoting catalytic reaction of a fuel oil part, and the left side of the connecting assembly is fixedly connected with an inserting ring. Inserting blocks are fixedly connected to the two sides of the inserting ring, grooves are formed in the sides, away from each other, of the inserting blocks, connecting shafts are fixedly connected to the interiors of the grooves, rotating rollers are rotatably connected to the exteriors of the connecting shafts, clamping plates are fixedly connected to the upper sides of the rotating rollers, and springs are fixedly connected to the two sides of the interiors of the grooves. The springs are fixedly connected to the close sides of the clamping plates. According to the structure, the carburetor body and the connecting pipe can be rapidly and conveniently installed, accurate positioning and locking are automatically completed, automatic and passive cleaning can be conveniently conducted on the surface of a catalytic coating, and the activity and efficiency of a catalyst can be continuously kept through the structure.
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Description

Technical Field

[0001] The invention relates to the technical field of motorcycle engine accessories, in particular to a motorcycle carburetor fuel outlet structure. Background Art

[0002] The motorcycle carburetor is a core component of the motorcycle's fuel supply system. Its primary function is to atomize fuel and mix it with air to provide a combustible mixture for the engine. Over the course of long-term use and development, traditional motorcycle carburetors have gradually exposed inherent flaws and inconveniences in terms of structural installation, exhaust gas treatment, and fuel filtration.

[0003] Traditionally, carburetors are fastened to the engine intake pipe or air filter connection using hose clamps, flanges, or bolts. These connections require specialized tools like screwdrivers and wrenches for installation and removal, making them inconvenient and time-consuming within the compact space of a motorcycle.

[0004] To meet increasingly stringent environmental regulations, some motorcycles incorporate catalytic coatings on their exhaust systems or carburetor-related components to purify exhaust gases. However, existing technologies suffer from the problem of incomplete fuel combustion producing carbon deposits and colloids. These deposits adhere to and coat the surface of the catalytic coating, clogging the active pores of the catalyst. This "poisoning" or "coating" phenomenon dramatically reduces the contact efficiency between the catalyst and the exhaust gas, leading to a significant decrease in exhaust gas purification capability or even complete failure. Current structures lack automatic cleaning mechanisms, and reduced catalytic efficiency can only be addressed through chemical cleaning or complete component replacement, which is both costly and inconvenient to maintain.

[0005] To prevent impurities in the fuel from clogging the precise spray holes inside the carburetor, a fuel filter is typically installed. Traditional filters are often built-in or secured by threads. Disassembly and cleaning requires disconnecting the fuel line and using tools, a complex process that can easily lead to fuel leaks. This cumbersome cleaning process often leads users to neglect or delay regular filter maintenance, which can easily lead to filter blockage, resulting in poor fuel supply, reduced power, and other problems. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a motorcycle carburetor fuel outlet structure, which solves the problems of existing motorcycle carburetors being inconvenient to install and connect, the integrated catalytic device being easily ineffective due to contamination, and the built-in filter being difficult to quickly clean and maintain.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motorcycle carburetor fuel outlet structure, including a carburetor body, the left side of the carburetor body is fixedly connected to a connecting assembly, the connecting assembly is used to promote a partial catalytic reaction of the fuel, the left side of the connecting assembly is fixedly connected to a plug-in ring, both sides of the plug-in ring are fixedly connected to a plug-in block, the plug-in block is provided with a groove on the opposite side, the interior of the groove is fixedly connected to a connecting shaft, the outside of the connecting shaft is rotatably connected to a rotating roller, the upper side of the rotating roller is fixedly connected to a card plate, the inner sides of the groove are fixedly connected to a spring, the spring is fixedly connected to the adjacent side of the card plate, the plug-in ring is slidably connected to the interior of the plug-in groove, the plug-in groove is arranged on the right side of the connecting ring, both sides of the plug-in groove are provided with slide grooves, the opposite side of the slide groove is provided with a through groove, and the left side of the connecting ring is fixedly connected to a connecting pipe.

[0008] Preferably, the connecting assembly includes an outlet pipe, the outlet pipe is fixedly connected to the left side of the carburetor body, a catalytic coating is fixedly connected to the inside of the outlet pipe, and a fixing ring is fixedly connected to the left side of the outlet pipe.

[0009] Preferably, the inner front side of the catalytic coating is fixedly connected to a connecting rod, the right end of the connecting rod is internally rotatably connected to a support rod, the right end of the support rod is fixedly connected to a fixing rod, the outside of the fixing rod is fixedly connected to a cleaning assembly, the cleaning assembly is used to remove deposits inside the catalytic coating, the cleaning assembly is fixedly connected to a scraper at the far end, and the scraper is slidably connected to the inside of the catalytic coating.

[0010] Preferably, the cleaning assembly includes a rotating wheel, which is fixedly connected to the outside of the fixed rod, the right end of the fixed rod is fixedly connected to the rotating rod, both sides of the outside of the rotating rod are fixedly connected to fixed sleeves, and both sides of the fixed sleeve are fixedly connected to cross bars.

[0011] Preferably, the interior of the connecting ring is fixedly connected to a first magnetic ring, the magnetic connection of the first magnetic ring is to an adsorption component, the adsorption component is used to adsorb metal impurities to prevent the nozzle from being worn, and the interior of the adsorption component is fixedly connected to a magnetic filter.

[0012] Preferably, the adsorption assembly includes a second magnetic ring, the second magnetic ring is magnetically connected to the first magnetic ring, and the second magnetic ring is fixedly connected to the outside of the support ring.

[0013] Preferably, the support ring and the magnetic filter are both slidably connected inside the connecting ring.

[0014] Preferably, the plug-in block is slidably connected to the inside of the slide groove, and the clamping plate is slidably connected to the inside of the through groove.

[0015] Preferably, the outside of the support rod is fixedly connected to a limiting ring, and the limiting ring is slidably connected to the inside of the connecting rod.

[0016] Preferably, a sealing ring is fixedly connected to the outside of the plug-in ring.

[0017] Working principle: When installing the carburetor body, the carburetor body is moved manually, and the movement of the carburetor body drives the outlet pipe to move, and the movement of the outlet pipe drives the fixed ring to move, and the movement of the fixed ring drives the plug-in ring to move, so that the plug-in ring slides inside the plug-in slot, and at the same time, the movement of the plug-in ring drives the plug-in block to move, so that the plug-in block slides inside the slide slot. When the plug-in ring is inserted to the bottom of the plug-in slot, the spring generates elastic force to drive the card plate to move, and the card plate is stuck into the through slot. At the same time, the movement of the card plate drives the rotating roller to rotate outside the connecting shaft, supporting and limiting the fixing ring and the connecting ring, and then supporting and limiting the connecting pipe, so that the carburetor body and the connecting pipe can be installed quickly and conveniently, and precise positioning and locking are automatically completed to ensure a firm and reliable connection and effectively prevent loosening; the catalytic coating is coated with precious metals (such as platinum / rhodium) on the outlet surface to promote partial catalytic reaction of the fuel and reduce cold start pollutants; the rotor is driven by the flow of fuel The moving wheel rotates, and the rotation of the rotating wheel drives the rotating rod to rotate. At the same time, the rotation of the rotating wheel drives the support rod to rotate inside the connecting rod. The rotation of the rotating rod drives the fixed sleeve to rotate. The rotation of the fixed sleeve drives the cross rod to rotate. The rotation of the cross rod drives the scraper to rotate, so that the scraper slides on the inner wall of the catalytic coating, which facilitates the automatic and passive cleaning of the catalytic coating surface. This structure can continuously maintain the activity and efficiency of the catalyst and stabilize the exhaust gas purification effect. The magnetic filter is used to adsorb metal impurities and prevent the spray hole from wearing. When cleaning the magnetic filter, the support ring is manually moved, and the movement of the support ring drives the second magnetic ring to move, so that the second magnetic ring is separated from the first magnetic ring, and then drives the magnetic filter to move, take out the magnetic filter and clean it, thereby achieving effective filtration of the fuel. At the same time, it has a tool-free, quick and convenient magnetic filter disassembly and assembly method, which greatly simplifies the maintenance process and helps to keep the fuel system clean and stable.

[0018] The present invention provides a fuel outlet structure for a motorcycle carburetor. It has the following beneficial effects: 1. The present invention drives the outlet pipe, the fixed ring and the plug-in ring to move by manually moving the carburetor body, so that the plug-in ring slides inside the plug-in slot. At the same time, the movement of the plug-in ring drives the plug-in block to slide inside the slide slot. When the plug-in ring is inserted to the bottom of the plug-in slot, the spring generates elastic force to drive the clamping plate to be clamped into the through slot. At the same time, the movement of the clamping plate drives the rotating roller to rotate outside the connecting shaft, thereby realizing the rapid and convenient installation of the carburetor body and the connecting pipe, automatically completing precise positioning and locking, ensuring a stable and reliable connection, and effectively preventing loosening.

[0019] 2. The present invention drives the rotating wheel and the rotating rod to rotate through the flow of fuel. At the same time, the rotation of the rotating wheel drives the support rod to rotate inside the connecting rod. The rotation of the rotating rod drives the fixed sleeve, the cross bar and the scraper to rotate, so that the scraper slides on the inner wall of the catalytic coating, thereby facilitating automatic and passive cleaning of the catalytic coating surface. This structure can continuously maintain the activity and efficiency of the catalyst and stabilize the exhaust gas purification effect.

[0020] 3. The present invention uses a magnetic filter to absorb metal impurities. The support ring is manually moved to drive the second magnetic ring to move, so that the second magnetic ring is separated from the first magnetic ring. The magnetic filter is taken out and cleaned, thereby achieving effective filtration of the fuel. At the same time, it has a tool-free, quick and convenient method for disassembling and assembling the magnetic filter, which greatly simplifies the maintenance process and helps to keep the fuel system clean and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention; Figure 2 It is a rear view of the present invention; Figure 3 It is a schematic diagram of the partial structure of the present invention; Figure 4 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 5 is a cross-sectional view of the connecting ring of the present invention; Figure 6 It is a cross-sectional view of the plug-in block of the present invention; Figure 7 is a cross-sectional view of an outlet pipe of the present invention; Figure 8 It is a cross-sectional view of the connecting rod of the present invention.

[0022] Among them, 1. Carburetor body; 2. Outlet pipe; 3. Fixed ring; 4. Plug-in ring; 5. Plug-in block; 6. Groove; 7. Connecting shaft; 8. Rotating roller; 9. Clamping plate; 10. Spring; 11. Plug-in groove; 12. Connecting ring; 13. Slide groove; 14. Through groove; 15. Connecting pipe; 16. Sealing ring; 17. Catalytic coating; 18. Connecting rod; 19. Support rod; 20. Limiting ring; 21. Fixed rod; 22. Rotating wheel; 23. Rotating rod; 24. Fixed sleeve; 25. Cross bar; 26. Scraper; 27. First magnetic ring; 28. Support ring; 29. ​​Second magnetic ring; 30. Magnetic filter. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: Please see the attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides a fuel outlet structure of a motorcycle carburetor, comprising a carburetor body 1, a connecting assembly fixedly connected to the left side of the carburetor body 1, the connecting assembly being used to promote the partial catalytic reaction of the fuel, a plug-in ring 4 fixedly connected to the left side of the connecting assembly, a plug-in block 5 fixedly connected to both sides of the plug-in ring 4, a groove 6 is provided on the opposite side of the plug-in block 5, a connecting shaft 7 is fixedly connected to the inside of the groove 6, a rotating roller 8 is rotatably connected to the outside of the connecting shaft 7, a clamping plate 9 is fixedly connected to the upper side of the rotating roller 8, and both sides of the inside of the groove 6 are fixed. A spring 10 is connected, and the spring 10 is fixedly connected to the adjacent side of the card plate 9. The plug-in ring 4 is slidably connected to the inside of the plug-in slot 11. The plug-in slot 11 is arranged on the right side of the connecting ring 12. Slide grooves 13 are provided on both sides of the plug-in slot 11. A through groove 14 is provided on the opposite side of the slide groove 13. A connecting pipe 15 is fixedly connected to the left side of the connecting ring 12; the connecting assembly includes an outlet pipe 2, which is fixedly connected to the left side of the carburetor body 1, and a catalytic coating 17 is fixedly connected to the inside of the outlet pipe 2. The left side of the outlet pipe 2 is fixedly connected to the fixing ring 3.

[0025] When using this device, when the carburetor body 1 is installed, the carburetor body 1 is moved manually, and the carburetor body 1 moves to drive the outlet pipe 2 to move, and the outlet pipe 2 moves to drive the fixing ring 3 to move, and the fixing ring 3 moves to drive the plug-in ring 4 to move, so that the plug-in ring 4 slides inside the plug-in groove 11, and at the same time, the plug-in ring 4 moves to drive the plug-in block 5 to move, so that the plug-in block 5 slides inside the slide groove 13. When the plug-in ring 4 is inserted to the bottom of the plug-in groove 11, the spring 10 generates elastic force to drive the card plate 9 to move, and the card is The plate 9 is inserted into the through groove 14, and at the same time, the movement of the card plate 9 drives the rotating roller 8 to rotate outside the connecting shaft 7, supporting and limiting the fixing ring 3 and the connecting ring 12, and then supporting and limiting the connecting pipe 15, so that the carburetor body 1 and the connecting pipe 15 can be installed quickly and conveniently, and precise positioning and locking are automatically completed, ensuring a firm and reliable connection and effectively preventing loosening; the catalytic coating 17 is provided, and precious metals (such as platinum / rhodium) are coated on the outlet surface to promote the partial catalytic reaction of the fuel and reduce cold start pollutants.

[0026] Please see the attached Figure 3 , Attachment Figure 7 , Attachment Figure 8 The inner front side of the catalytic coating 17 is fixedly connected to a connecting rod 18, and the right end of the connecting rod 18 is rotatably connected to a support rod 19. The right end of the support rod 19 is fixedly connected to a fixed rod 21, and the outside of the fixed rod 21 is fixedly connected to a cleaning component. The cleaning component is used to remove deposits inside the catalytic coating 17, and the farther end of the cleaning component is fixedly connected to a scraper 26, which is slidably connected to the inside of the catalytic coating 17; the cleaning component includes a rotating wheel 22, which is fixedly connected to the outside of the fixed rod 21, and the right end of the fixed rod 21 is fixedly connected to a rotating rod 23, and both sides of the outside of the rotating rod 23 are fixedly connected to fixed sleeves 24, and both sides of the fixed sleeve 24 are fixedly connected to cross bars 25.

[0027] When using this device, the rotating wheel 22 is driven to rotate by the flow of fuel, and the rotation of the rotating wheel 22 drives the rotating rod 23 to rotate. At the same time, the rotation of the rotating wheel 22 drives the support rod 19 to rotate inside the connecting rod 18, and the rotation of the rotating rod 23 drives the fixed sleeve 24 to rotate. The rotation of the fixed sleeve 24 drives the cross bar 25 to rotate, and the rotation of the cross bar 25 drives the scraper 26 to rotate, so that the scraper 26 slides on the inner wall of the catalytic coating 17, thereby facilitating automatic and passive cleaning of the surface of the catalytic coating 17. This structure can continuously maintain the activity and efficiency of the catalyst and stabilize the exhaust gas purification effect.

[0028] Please see the attached Figure 4 , Attachment Figure 5 The interior of the connecting ring 12 is fixedly connected to a first magnetic ring 27, and the first magnetic ring 27 is magnetically connected to an adsorption component. The adsorption component is used to adsorb metal impurities to prevent wear of the nozzle hole. The interior of the adsorption component is fixedly connected to a magnetic filter 30; the adsorption component includes a second magnetic ring 29, and the second magnetic ring 29 is magnetically connected to the first magnetic ring 27. The second magnetic ring 29 is fixedly connected to the outside of the support ring 28.

[0029] When using this device, the provided magnetic filter 30 is used to absorb metal impurities and prevent wear of the spray hole. When cleaning the magnetic filter 30, the support ring 28 is manually moved, and the movement of the support ring 28 drives the second magnetic ring 29 to move, so that the second magnetic ring 29 is separated from the first magnetic ring 27, and then drives the magnetic filter 30 to move. The magnetic filter 30 is taken out and cleaned, thereby achieving effective filtration of the fuel. At the same time, the magnetic filter 30 can be disassembled and assembled without tools, which is quick and convenient, greatly simplifying the maintenance process and helping to keep the fuel system clean and stable.

[0030] Please see the attached Figure 3 , Attachment Figure 4 , Attachment Figure 8The support ring 28 and the magnetic filter 30 are both slidably connected to the inside of the connecting ring 12; the plug-in block 5 is slidably connected to the inside of the slide groove 13, and the clamping plate 9 is slidably connected to the inside of the through groove 14; the outside of the support rod 19 is fixedly connected to the limit ring 20, and the limit ring 20 is slidably connected to the inside of the connecting rod 18; the outside of the plug-in ring 4 is fixedly connected to the sealing ring 16.

[0031] The support ring 28 and the magnetic filter screen 30 are both slidably connected to the inside of the connecting ring 12, which plays a role in supporting and limiting the support ring 28 and the magnetic filter screen 30; the plug-in block 5 is slidably connected to the inside of the slide groove 13, and the clamping plate 9 is slidably connected to the inside of the through groove 14, which plays a role in supporting and limiting the plug-in block 5 and the clamping plate 9; the limiting ring 20 is fixedly connected to the outside of the support rod 19, and the limiting ring 20 is slidably connected to the inside of the connecting rod 18, which plays a role in supporting and limiting the support rod 19; the sealing ring 16 is fixedly connected to the outside of the plug-in ring 4, which plays a role in improving the sealing during the connection.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A motorcycle carburetor fuel outlet structure, comprising a carburetor body (1), characterized in that: The left side of the carburetor body (1) is fixedly connected to a connecting assembly, and the connecting assembly is used to promote the partial catalytic reaction of the fuel. The left side of the connecting assembly is fixedly connected to a plug ring (4), and both sides of the plug ring (4) are fixedly connected to plug blocks (5). The plug blocks (5) are provided with a groove (6) on the side away from each other. The interior of the groove (6) is fixedly connected to a connecting shaft (7), and the exterior of the connecting shaft (7) is rotatably connected to a rotating roller (8), and the upper side of the rotating roller (8) is fixedly connected to a clamping plate. (9), springs (10) are fixedly connected to both sides of the interior of the groove (6), the springs (10) are fixedly connected to the adjacent side of the card plate (9), the plug-in ring (4) is slidably connected to the interior of the plug-in groove (11), the plug-in groove (11) is arranged on the right side of the connecting ring (12), and slide grooves (13) are provided on both sides of the plug-in groove (11), and a through groove (14) is provided on the distant side of the slide groove (13), and a connecting pipe (15) is fixedly connected to the left side of the connecting ring (12).

2. A motorcycle carburetor fuel outlet structure according to claim 1, characterized in that: The connection assembly comprises an outlet pipe (2), the outlet pipe (2) being fixedly connected to the left side of the carburetor body (1), a catalytic coating (17) being fixedly connected inside the outlet pipe (2), and a fixing ring (3) being fixedly connected to the left side of the outlet pipe (2).

3. The motorcycle carburetor fuel outlet structure according to claim 2, characterized in that: The front side of the interior of the catalytic coating (17) is fixedly connected to a connecting rod (18), the right end of the connecting rod (18) is internally rotatably connected to a support rod (19), the right end of the support rod (19) is fixedly connected to a fixing rod (21), the outside of the fixing rod (21) is fixedly connected to a cleaning component, the cleaning component is used to remove sediments inside the catalytic coating (17), the remote end of the cleaning component is fixedly connected to a scraper (26), and the scraper (26) is slidably connected to the inside of the catalytic coating (17).

4. A motorcycle carburetor fuel outlet structure according to claim 3, characterized in that: The cleaning assembly comprises a rotating wheel (22), the rotating wheel (22) being fixedly connected to the outside of a fixed rod (21), the right end of the fixed rod (21) being fixedly connected to a rotating rod (23), both sides of the outside of the rotating rod (23) being fixedly connected to fixed sleeves (24), and both sides of the fixed sleeve (24) being fixedly connected to cross bars (25).

5. The motorcycle carburetor fuel outlet structure according to claim 1, characterized in that: The interior of the connecting ring (12) is fixedly connected to a first magnetic ring (27), and the magnetic connection of the first magnetic ring (27) is to an adsorption component, and the adsorption component is used to adsorb metal impurities to prevent the spray hole from being worn. The interior of the adsorption component is fixedly connected to a magnetic filter (30).

6. The motorcycle carburetor fuel outlet structure according to claim 5, characterized in that: The adsorption assembly comprises a second magnetic ring (29), the second magnetic ring (29) is magnetically connected to the first magnetic ring (27), and the second magnetic ring (29) is fixedly connected to the outside of the support ring (28).

7. The motorcycle carburetor fuel outlet structure according to claim 6, characterized in that: The support ring (28) and the magnetic filter (30) are both slidably connected inside the connecting ring (12).

8. The motorcycle carburetor fuel outlet structure according to claim 1, characterized in that: The plug-in block (5) is slidably connected to the inside of the slide groove (13), and the clamping plate (9) is slidably connected to the inside of the through groove (14).

9. The motorcycle carburetor fuel outlet structure according to claim 3, characterized in that: The outside of the support rod (19) is fixedly connected to a limiting ring (20), and the limiting ring (20) is slidably connected to the inside of the connecting rod (18).

10. The fuel outlet structure of a motorcycle carburetor according to claim 1, characterized in that: A sealing ring (16) is fixedly connected to the outside of the plug-in ring (4).