Motorcycle carburetor with high sealing performance
By setting a rubber pad and raised shape design between the upper and lower cover of the motorcycle carburetor, the problem of poor sealing of traditional motorcycle carburetor is solved, and higher sealing performance is achieved, reducing oil and air leakage, protecting the environment and reducing fuel consumption.
Patent Information
- Application Number
- CN202421535226.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Traditional motorcycle carburetors are not sealed, resulting in oil leakage and air leakage, affecting power, fuel consumption and environmental pollution.
A high-sealing motorcycle carburetor is designed, and the shape design of rubber pads and projections is provided between the upper and lower covers to ensure that the carburetor has better sealing performance when assembling.
Effectively prevent oil leakage and air leakage, improve the stability of the carburetor and overall structural stability, reduce fuel leakage and waste, protect the environment and reduce fuel consumption.
Smart Images
Figure CN222558637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carburetors, in particular to a motorcycle carburetors with high sealing performance. Background Art
[0002] As the core component of the motorcycle fuel supply system, the performance of the high-sealing motorcycle carburetor is directly related to the power, economy and environmental protection of the motorcycle. Traditional motorcycle carburetors have certain limitations in terms of sealing, especially when used for a long time or in harsh environments, they are prone to oil leakage, air leakage and other problems, which not only affect the normal operation of the motorcycle, but also may pollute the environment. Therefore, the development of a high-sealing motorcycle carburetor is of great significance for improving the overall performance of the motorcycle, ensuring driving safety and protecting the environment. In the prior art, the poor sealing of motorcycle carburetors can lead to oil leakage, affect power and fuel consumption, start difficulty, pollute the environment and other problems, which need to be improved. For this reason, we propose a high-sealing motorcycle carburetor. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a high-sealability motorcycle carburetor to solve the above-mentioned problems.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly sealed motorcycle carburetor, comprising an upper cover, a protrusion is provided on the lower edge of the upper cover, a rubber pad 2 is provided on the lower surface of the protrusion, four screw holes are provided on the lower surface of the upper cover, the screw holes are located inside the protrusion, the upper cover is fixed to the lower cover by screws, the upper surface of the lower cover is rectangular, and the four sides of the lower cover are rounded, a card slot is provided inside the lower cover, a rubber pad 1 is provided inside the card slot, and screw holes are provided on the four corners of the rubber pad 1.
[0007] Preferably, the upper cover includes an oil inlet, an air inlet, an oil drain port, a throat, a hollow bolt and an idle mixture screw. The throat and the air inlet are provided on both sides of the upper cover, the oil drain port is provided on one side of the upper cover, and the hollow bolt, the idle mixture screw and the oil inlet are provided on the other side of the upper cover, and the idle mixture screw is located below the hollow bolt, and the oil inlet is provided on the other side of the hollow bolt and the idle mixture screw.
[0008] Preferably, the lower cover comprises an oil drain screw, an oil overflow pipe, a slot and a rubber pad; an oil overflow pipe is provided below the lower cover, the interior of the oil overflow pipe is a hollow structure, and the lower cover is threadedly connected to the oil drain screw.
[0009] Preferably, a plunger, an oil needle clamp and an oil needle are provided inside the upper cover, the oil needle clamp is installed inside the plunger, a hole is provided inside the plunger, the outer surface of the oil needle is sleeved with the oil needle clamp, and a spring is movably connected above the oil needle clamp, and the spring is located inside the upper cover.
[0010] Preferably, the upper circumferential surface of the upper cover is provided with threads, the upper cover is threadedly connected to the throttle valve, and the lower surface of the throttle valve is provided with anti-slip bumps.
[0011] Preferably, the shape of the protrusion is the same as the lower surface of the upper cover, the position of the second rubber pad and the lower surface of the protrusion coincide, and the thickness of the second rubber pad is the same as the thickness of the first rubber pad.
[0012] Preferably, the positions of the card slot and the second rubber pad completely overlap, and the depth of the card slot is the same as the height of the second rubber pad.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a high-sealing motorcycle carburetor, which has the following beneficial effects:
[0015] 1. The high-seal motorcycle carburetor ensures better sealing performance during assembly by arranging rubber pad 1 and rubber pad 2 between the upper cover and the lower cover, and combining the convex shape design. The rubber pad 1 and rubber pad 2 can fill the possible tiny gaps and effectively prevent oil and gas leakage.
[0016] 2. The high-sealing motorcycle carburetor has a protrusion on the lower edge of the upper cover, which cooperates with the slot of the lower cover, so that the connection between the upper cover and the lower cover is more stable and not easy to loosen. At the same time, the upper cover and the lower cover are fixed by screws, which enhances the overall stability of the structure.
[0017] 3. The high-sealing motorcycle carburetor reduces fuel leakage and waste through its high-sealing design, which is beneficial to protecting the environment and reducing fuel consumption. At the same time, the stable sealing performance ensures the normal operation of the carburetor and improves the power and economy of the motorcycle. Due to the improvement of sealing performance, the safety hazards caused by oil leakage and air leakage are reduced, and the driving safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the upper cover of the utility model;
[0020] Figure 3 This is a schematic diagram of the lower cover of the utility model;
[0021] Figure 4It is an isometric schematic diagram of the utility model;
[0022] Figure 5 It is a cross-sectional schematic diagram of the utility model.
[0023] In the figure: 1. plunger; 2. oil needle; 3. throat; 4. oil needle clamp; 5. screw; 6. drain screw; 7. oil overflow pipe; 8. hollow bolt; 9. idle mixture screw; 10. oil inlet; 11. throttle; 12. air inlet; 13. oil drain; 14. slot; 15. rubber pad 1; 16. protrusion; 17. rubber pad 2; 18. upper cover; 19. lower cover; 20. screw hole; 21. anti-skid bump; 22. spring. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-5 A high-sealing motorcycle carburetor comprises an upper cover 18, a protrusion 16 is provided on the lower edge of the upper cover 18, a rubber pad 17 is provided on the lower surface of the protrusion 16, four screw holes 20 are provided on the lower surface of the upper cover 18, the screw holes 20 are located inside the protrusion 16, the upper cover 18 is fixed to the lower cover 19 by screws 5, the upper surface of the lower cover 19 is rectangular, and the four sides of the lower cover 19 are rounded, a card slot 14 is provided inside the lower cover 19, a rubber pad 15 is provided inside the card slot 14, and screw holes 20 are provided on the four corners of the rubber pad 15 to ensure the sealing of the carburetor.
[0026] Furthermore, the upper cover 18 includes an oil inlet 10, an air inlet 12, an oil drain port 13, a throat 3, a hollow bolt 8 and an idle mixture screw 9. The throat 3 and the air inlet 12 are provided on both sides of the upper cover 18, the oil drain port 13 is provided on one side of the upper cover 18, and the hollow bolt 8, the idle mixture screw 9 and the oil inlet 10 are provided on the other side of the upper cover 18, and the idle mixture screw 9 is located below the hollow bolt 8, and the oil inlet 10 is provided on the other side of the hollow bolt 8 and the idle mixture screw 9. The idle mixture screw 9 is used to adjust the mixture concentration at idle speed to ensure that the motorcycle works stably in the idle state.
[0027] Furthermore, the lower cover 19 includes an oil drain screw 6, an oil overflow pipe 7, a slot 14 and a rubber pad 15. An oil overflow pipe 7 is provided below the lower cover 19. The interior of the oil overflow pipe 7 is a hollow structure. The lower cover 19 is threadedly connected to the oil drain screw 6.
[0028] Furthermore, a plunger 1, an oil needle clamp 4 and an oil needle 2 are provided inside the upper cover 18. The oil needle clamp 4 is installed inside the plunger 1. A hole is provided inside the plunger 1. The outer surface of the oil needle 2 is sleeved with the oil needle clamp 4. A spring 22 is movably connected above the oil needle clamp 4. The spring 22 is located inside the upper cover 18. The system composed of the plunger 1, the oil needle clamp 4 and the oil needle 2 adjusts the flow rate of the fuel according to the opening of the throttle valve to achieve mixing of the fuel and the air.
[0029] Furthermore, the upper circumferential surface of the upper cover 18 is provided with threads, and the upper cover 18 is threadedly connected to the throttle valve 11. The lower surface of the throttle valve 11 is provided with anti-slip bumps 21. The upper circumferential surface of the upper cover 18 is provided with threads, and is threadedly connected to the throttle valve 11 to ensure a tight connection between the throttle valve and the carburetor.
[0030] Furthermore, the shape of the protrusion 16 is the same as the lower surface of the upper cover 18 , the position of the second rubber pad 17 and the lower surface of the protrusion 16 coincide with each other, and the thickness of the second rubber pad 17 is the same as the thickness of the first rubber pad 15 .
[0031] Furthermore, the positions of the card slot 14 and the second rubber pad 17 completely overlap, and the depth of the card slot 14 is the same as the height of the second rubber pad 17 .
[0032] Working principle: A rubber pad 17 is installed on the lower surface of the protrusion 16 provided at the lower edge of the upper cover 18. A rubber pad 15 is installed inside the slot 14 provided inside the lower cover 19. The upper cover 18 is fixed to the lower cover 19 by screws 5. At this time, the rubber pad 15 and the rubber pad 17 fit tightly to ensure the sealing of the carburetor. The fuel enters the carburetor through the oil inlet 10. The system composed of the plunger 1, the oil needle clamp 4 and the oil needle 2 adjusts the flow of fuel according to the opening of the throttle valve to achieve the mixing of fuel and air. The overflow pipe 7 is used to discharge excess fuel when there is too much fuel inside the carburetor to prevent the internal pressure of the carburetor from being too high. The drain port 13 and the drain screw 6 are used to regularly discharge sediment or residual oil inside the carburetor. The upper circumferential surface of the upper cover 18 is provided with threads, which are threadedly connected with the throttle valve 11 to ensure the tight connection between the throttle valve and the carburetor. The lower surface of the throttle valve 11 is provided with anti-skid bumps 21 to enhance the connection stability with the carburetor.
[0033] Although the 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A highly sealed motorcycle carburetor, comprising an upper cover (18), characterized in that: A protrusion (16) is provided on the lower edge of the upper cover (18), a rubber pad 2 (17) is provided on the lower surface of the protrusion (16), four screw holes (20) are provided on the lower surface of the upper cover (18), and the screw holes (20) are located inside the protrusion (16). The upper cover (18) is fixed to the lower cover (19) by screws (5), the upper surface of the lower cover (19) is rectangular, and the four sides of the lower cover (19) are rounded, a card slot (14) is provided inside the lower cover (19), a rubber pad 1 (15) is provided inside the card slot (14), and screw holes (20) are provided on the four corners of the rubber pad 1 (15).
2. A highly sealed motorcycle carburetor according to claim 1, characterized in that: The upper cover (18) comprises an oil inlet (10), an air inlet (12), an oil drain port (13), a throat (3), a hollow bolt (8) and an idle gas mixture screw (9); the throat (3) and the air inlet (12) are provided on both sides of the upper cover (18); the oil drain port (13) is provided on one side of the upper cover (18); the hollow bolt (8), the idle gas mixture screw (9) and the oil inlet (10) are provided on the other side of the upper cover (18); the idle gas mixture screw (9) is located below the hollow bolt (8); and the oil inlet (10) is provided on the other side of the hollow bolt (8) and the idle gas mixture screw (9).
3. The high-sealing motorcycle carburetor according to claim 1, characterized in that: The lower cover (19) comprises an oil drain screw (6), an oil overflow pipe (7), a clamping groove (14) and a rubber pad (15). An oil overflow pipe (7) is arranged below the lower cover (19). The interior of the oil overflow pipe (7) is a hollow structure. The lower cover (19) is threadedly connected to the oil drain screw (6).
4. The high-sealability motorcycle carburetor according to claim 1, characterized in that: The upper cover (18) is provided with a plunger (1), an oil needle clamp (4) and an oil needle (2) inside. The plunger (1) is provided with an oil needle clamp (4). The plunger (1) is provided with a hole inside. The outer surface of the oil needle (2) is sleeved with the oil needle clamp (4). A spring (22) is movably connected above the oil needle clamp (4). The spring (22) is located inside the upper cover (18).
5. The high-sealability motorcycle carburetor according to claim 1, characterized in that: The upper circumferential surface of the upper cover (18) is provided with threads, the upper cover (18) is connected to the throttle valve (11) by threads, and the lower surface of the throttle valve (11) is provided with anti-slip convex points (21).
6. The high-sealability motorcycle carburetor according to claim 1, characterized in that: The shape of the protrusion (16) is the same as the lower surface of the upper cover (18), the position of the second rubber pad (17) and the lower surface of the protrusion (16) overlap, and the thickness of the second rubber pad (17) is the same as the thickness of the first rubber pad (15).
7. The high-sealability motorcycle carburetor according to claim 1, characterized in that: The positions of the card slot (14) and the second rubber pad (17) are completely overlapped, and the depth of the card slot (14) is the same as the height of the second rubber pad (17).