Motorcycle secondary air valve

Abstract

The present invention relates to the technical field of motorcycle exhaust purification, and discloses a motorcycle secondary air supply valve, including a valve body protective shell, the right side of the valve body protective shell is fixedly connected to a negative pressure protective shell, the top surface of the valve body protective shell is fixedly connected to an exhaust protection shell, the left side of the valve body protective shell is fixedly connected to an intake protection shell, a sealing connection component is arranged between the valve body protective shell and the negative pressure protective shell, the exhaust protection shell and the intake protection shell, an exhaust component is arranged on the inner side of the exhaust protection shell, a negative pressure sealing component is arranged on the inner side of the negative pressure protection shell, and an intake connecting component is arranged on the inner side of the intake protection shell. The present invention uses the function of the connecting component to enable the valve plate to close the connecting cavity more quickly, close the reed valve in time, reduce the problem of oil accumulation in the valve body caused by the backflow of engine exhaust, and help to volatilize the liquefied gas in the valve body in time and increase the air supply flow, thereby improving exhaust gas emissions.

Description

Technical Field

[0001] The invention relates to the technical field of motorcycle exhaust purification, in particular to a motorcycle secondary air supply valve. Background Art

[0002] Generally, domestic motorcycles generally use mechanical carburetors, which makes it difficult for motorcycle exhaust to meet relevant national emission standards. For this reason, a secondary air supply device is generally used to reduce the emissions of CO, HC, and NOX. Fresh air is introduced into the engine cylinder head through a secondary air supply valve. The negative pressure pipe of the secondary air supply valve is connected to the engine intake end, the intake pipe is connected to the air filter or other intake filtration system, and the outlet pipe is connected to the exhaust branch pipe of the engine. The pulse negative pressure generated by the engine exhaust is used to open or close the inlet and outlet ports in time to achieve the purpose of air supply.

[0003] The valve body of the existing motorcycle secondary air replenishment valve is provided with an air inlet chamber, an air outlet chamber and a negative pressure chamber, and the air inlet chamber, the air outlet chamber and the negative pressure chamber are respectively provided with an air inlet pipe, an air outlet pipe and a negative pressure pipe, the air inlet and the air outlet chamber are connected by a connecting chamber, and the two ends of the connecting chamber are opened and closed by a valve plate and a reed valve respectively; when the air inlet end of the engine is under negative pressure, the valve plate in the air inlet chamber moves upward to connect the air inlet pipe and the air inlet chamber, and fresh air passes through the air inlet pipe, the air inlet chamber and the connecting chamber to the air outlet chamber and enters the exhaust branch pipe; when the negative pressure at the air inlet end of the engine is too large, the valve plate continues to move upward to fit the valve body wall between the connecting chamber and the air inlet chamber and isolate the air inlet chamber and the connecting chamber to stop replenishing air to the exhaust branch pipe of the engine; when the vehicle is running at a non-uniform speed, the valve plate in the air inlet chamber will frequently connect the air inlet chamber with the connecting chamber or the air inlet pipe Partition, but due to the hysteresis of the negative pressure chamber responding to the engine, the valve plate actuation lags, thereby delaying the separation of the intake chamber and the connecting chamber, and a phase difference phenomenon occurs. The existence of the phase difference causes the valve plate to fail to separate the intake chamber and the connecting chamber or the intake pipe in time when it should, so that fresh air continues to be replenished in the connecting chamber, which will cause the reed valve (one-way valve) to fail to close in time due to the entry of fresh air under the positive pressure at the exhaust end of the engine, and the sensitivity of the reed valve is affected. At the same time, because the reed valve cannot be closed in time under the positive pressure at the exhaust end of the engine, the backflow problem caused by the engine exhaust and the oil accumulation problem in the valve body caused by the backflow will be aggravated, and it is not conducive to the timely volatilization of the liquefied water accumulated in the valve body, which needs to be improved. For this reason, the present invention proposes a motorcycle secondary air supply valve. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a secondary air supply valve for a motorcycle to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A motorcycle secondary air supply valve comprises a valve body protective shell, the right side of the valve body protective shell is fixedly connected to a negative pressure protective shell, the top surface of the valve body protective shell is fixedly connected to an exhaust protective shell, the left side of the valve body protective shell is fixedly connected to an intake protective shell, a sealing connection component is arranged between the valve body protective shell and the negative pressure protective shell, the exhaust protective shell and the intake protective shell, an exhaust component is arranged on the inner side of the exhaust protective shell, a negative pressure sealing component is arranged on the inner side of the negative pressure protective shell, and an intake connecting component is arranged on the inner side of the intake protective shell.

[0007] Preferably, a connecting cavity is opened in the inner hollow of the valve body protective shell, an air intake cavity is opened in the inner hollow of the left side of the valve body protective shell, a negative pressure cavity is opened in the inner hollow of the right side of the valve body protective shell, an exhaust cavity is opened in the top hollow of the valve body protective shell, an air intake fixed mounting platform is fixedly connected to the left side of the valve body protective shell, and equidistantly distributed connecting thread grooves are opened on the left side of the air intake fixed mounting platform, a negative pressure fixed mounting platform is fixedly connected to the right side of the valve body protective shell, and equidistantly distributed connecting thread grooves are opened on the right side of the negative pressure fixed mounting platform, and an exhaust fixed mounting platform is fixedly connected to the top of the valve body protective shell, and the top surface of the exhaust fixed mounting platform is opened with equidistantly distributed connecting thread grooves, and an internal pushing component is arranged on the inner side of the connecting cavity.

[0008] Preferably, the sealing connection assembly includes a negative pressure sealing ring, a negative pressure protective shell, a fixed connecting screw, an exhaust sealing ring, an exhaust protective shell, an intake sealing ring, and an intake protective shell. The left side of the intake fixed mounting platform is fixedly connected with an intake sealing ring, the top surface of the exhaust fixed mounting platform is fixedly connected with an exhaust sealing ring, and the right side of the negative pressure fixed mounting platform is fixedly connected with a negative pressure sealing ring. The top surfaces of the negative pressure protective shell, the exhaust protective shell and the intake protective shell are provided with equidistantly distributed threaded connecting holes, and the bottom surfaces of the negative pressure protective shell, the exhaust protective shell and the intake protective shell are provided with sealing annular grooves. A negative pressure sealing ring is fixedly connected to the inner side of the sealing annular groove at the bottom of the negative pressure protective shell, an exhaust sealing ring is fixedly connected to the inner side of the sealing annular groove at the bottom of the exhaust protective shell, an intake sealing ring is fixedly connected to the inner side of the sealing annular groove at the bottom of the intake protective shell, the intake sealing ring is fixedly connected to the inner side of the sealing annular groove at the bottom of the intake protective shell, the inner side of the threaded connecting hole is threadedly connected with a fixing connecting screw, and the inner side of the connecting threaded groove is threadedly connected with a fixing connecting screw.

[0009] Preferably, an air inlet chamber sealing support ring is fixedly connected at the connection between the internal connecting cavity of the valve body protective shell and the air inlet chamber, and a negative pressure chamber sealing support ring is fixedly connected at the connection between the internal connecting cavity of the valve body protective shell and the negative pressure chamber. A connecting hole that passes through the right side and is evenly distributed is provided on the left side outside of the air inlet chamber sealing support ring, and internal sliding holes that pass through the right side and are evenly distributed are provided on the left side inside of the air inlet chamber sealing support ring. A connecting sliding groove that connects the connecting hole and the internal sliding hole and is evenly distributed is provided on the right side of the air inlet chamber sealing support ring.

[0010] Preferably, the internal pushing assembly includes an internal sliding connecting rod and an internal conical spring. The left side of the negative pressure chamber sealing support ring is fixedly connected to the internal conical spring, the inner side of the negative pressure chamber sealing support ring is slidingly connected to the internal sliding connecting rod, the left side of the internal conical spring is fixedly connected to the internal sliding connecting rod, the inner side of the air intake chamber sealing support ring is slidingly connected to the internal sliding connecting rod, and the outer side of the left part of the internal sliding connecting rod is provided with equidistantly distributed sliding square holes.

[0011] Preferably, an exhaust pipe is provided in the hollow space inside the exhaust protection shell, a reed internal support plate is fixedly connected to the inner bottom of the exhaust protection shell, and an exhaust reed connecting assembly is provided on the top of the reed internal support plate.

[0012] Preferably, the exhaust reed connecting assembly includes an elastic exhaust valve plate, a valve plate fixing mounting ring, and a countercurrent support plate. The bottom of the internal support plate of the reed is fixedly connected to the countercurrent support plate, the top of the internal support plate of the reed is fixedly connected to the elastic exhaust valve plate, the top surface of the elastic exhaust valve plate is fixedly connected to the valve plate fixing mounting ring, the inner bottom of the exhaust pipe is fixedly connected to the elastic exhaust valve plate, the inner bottom of the exhaust pipe is fixedly connected to the valve plate fixing mounting ring, the top of the exhaust reed connecting assembly is provided with an exhaust pipe, and the bottom of the exhaust reed connecting assembly is provided with an exhaust cavity.

[0013] Preferably, a negative pressure tube is opened on the inner side of the negative pressure protective shell, a negative pressure chamber is arranged at the bottom of the negative pressure protective shell, a negative pressure sealing assembly is arranged on the inner side of the negative pressure chamber, the negative pressure sealing assembly includes a negative pressure sealing valve plate and a negative pressure sealing spring, a negative pressure sealing valve plate is fixedly connected to the bottom of the negative pressure tube, an internal sliding connecting rod is slidingly connected to the inner side of the negative pressure sealing valve plate, a negative pressure sealing spring is fixedly connected to the right side of the internal sliding connecting rod, and a negative pressure sealing spring is slidingly connected to the inner side of the negative pressure chamber.

[0014] Preferably, an air intake pipe is opened on the inner side of the air intake protective shell, an air intake cavity is arranged at the bottom of the air intake pipe, an air intake connecting component is arranged inside the air intake cavity, the air intake connecting component is composed of an air intake sealing component and a connecting component, the air intake sealing component includes an air intake sealing valve plate and an air intake sealing reed, the inner side of the air intake cavity is slidingly connected with an internal sliding connecting rod, the left side of the internal sliding connecting rod is fixedly connected with an air intake sealing valve plate, the left side of the internal sliding connecting rod is fixedly connected with an air intake sealing reed, the inner side of the air intake cavity is slidingly connected with an air intake sealing reed, and the inner side of the air intake cavity is slidingly connected with an air intake sealing valve plate.

[0015] Preferably, the connecting component includes a sealing sliding platform and a connecting reset spring. The inner side of the connecting hole is slidably connected to the sealing sliding platform, the inner side of the internal sliding hole is slidably connected to the sealing sliding platform, the inner side of the connecting sliding groove is fixedly connected to the connecting reset spring, the right side of the connecting reset spring is fixedly connected to the sealing sliding platform, the inner side of the connecting sliding groove is slidably connected to the sealing sliding platform, and the inner side of the sliding square hole is slidably connected to the sealing sliding platform.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The present invention is provided with a connecting hole and an internal sliding hole on the inner side of the internal air intake chamber sealing support ring, and a connecting component is provided. Through the function of the connecting component, when the air intake chamber and the connecting chamber are placed in a low negative pressure state by the valve plate, the sealing sliding platform is pushed out of the connecting hole by pressing the sealing sliding platform, so that the air intake chamber and the connecting chamber are connected to each other, so that the valve plate can close the circulation chamber more quickly, so that the secondary air supply valve reed can be closed in time, thereby reducing the backflow problem caused by the engine exhaust and the valve volume oil problem caused by the backflow problem. At the same time, after the air intake chamber and the connecting chamber are connected, it is also convenient for the liquefied water in the valve body to be volatilized away in time with the air supply flow. In addition, the setting of the connecting component increases the gas flow rate of the secondary air supply valve passage when the connecting chamber is intaked, thereby increasing the oxidation rate of the exhaust gas and reducing the pollution to the atmosphere. When the secondary air supply is not performed, the inner side of the connecting hole is sealed, and the design of the counterflow support plate avoids the reverse opening of the elastic exhaust valve plate to cause backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in FIG.

[0021] Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 5 for Figure 4 A local enlarged view of point B in FIG.

[0023] Figure 6 for Figure 4 A local enlarged view of point C in FIG.

[0024] Figure 7 It is a cross-sectional schematic diagram of a partial structural valve body protective shell in the present invention;

[0025] Figure 8 It is a cross-sectional schematic diagram of a partial structure of the air intake cavity sealing support ring in the present invention.

[0026] In the figure: 1. Valve body protective shell; 2. Negative pressure sealing ring; 3. Negative pressure protective shell; 4. Fixed connection screws; 5. Exhaust sealing ring; 6. Exhaust protective shell; 7. Intake sealing ring; 8. Intake protective shell; 9. Negative pressure fixed mounting platform; 10. Exhaust fixed mounting platform; 11. Intake fixed mounting platform; 12. Connecting thread groove; 13. Internal sliding connecting rod; 14. Sliding square hole; 15. Intake sealing valve plate; 16. Intake sealing reed; 17. Threaded connection hole; 18. Elastic exhaust valve plate; 19. Valve plate fixing Mounting ring; 20. Exhaust pipe; 21. Countercurrent support plate; 22. Sealing annular groove; 23. Negative pressure sealing valve plate; 24. Negative pressure sealing reed; 25. Negative pressure chamber sealing support ring; 26. Internal conical spring; 27. Inlet chamber sealing support ring; 28. Connecting hole; 29. ​​Internal sliding hole; 30. Sealing sliding platform; 31. Connecting reset spring; 32. Connecting chamber; 33. Inlet chamber; 34. Inlet pipe; 35. Exhaust chamber; 36. Negative pressure pipe; 37. Reed internal support plate; 38. Negative pressure chamber; 39. Connecting sliding groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8 , the present invention provides a technical solution;

[0029] The motorcycle secondary air supply valve includes a valve body protective shell 1, the right side of the valve body protective shell 1 is fixedly connected to a negative pressure protective shell 3, the top surface of the valve body protective shell 1 is fixedly connected to an exhaust protective shell 6, the left side of the valve body protective shell 1 is fixedly connected to an intake protective shell 8, a sealing connection component is arranged between the valve body protective shell 1 and the negative pressure protective shell 3, the exhaust protective shell 6 and the intake protective shell 8, an exhaust component is arranged on the inner side of the exhaust protective shell 6, a negative pressure sealing component is arranged on the inner side of the negative pressure protective shell 3, and an intake connecting component is arranged on the inner side of the intake protective shell 8.

[0030] Furthermore, a connecting cavity 32 is opened in the inner hollow of the valve body protective shell 1, an air intake cavity 33 is opened in the inner hollow of the left side of the valve body protective shell 1, a negative pressure cavity 38 is opened in the inner hollow of the right side of the valve body protective shell 1, an exhaust cavity 35 is opened in the top hollow of the valve body protective shell 1, an air intake fixed mounting platform 11 is fixedly connected to the left side of the valve body protective shell 1, and equidistantly distributed connecting thread grooves 12 are opened on the left side of the air intake fixed mounting platform 11, a negative pressure fixed mounting platform 9 is fixedly connected to the right side of the valve body protective shell 1, and equidistantly distributed connecting thread grooves 12 are opened on the right side of the negative pressure fixed mounting platform 9, an exhaust fixed mounting platform 10 is fixedly connected to the top of the valve body protective shell 1, and equidistantly distributed connecting thread grooves 12 are opened on the top surface of the exhaust fixed mounting platform 10, and an internal pushing component is arranged on the inner side of the connecting cavity 32.

[0031] Furthermore, the sealing connection assembly includes a negative pressure sealing ring 2, a negative pressure protective shell 3, a fixed connecting screw 4, an exhaust sealing ring 5, an exhaust protective shell 6, an intake sealing ring 7, and an intake protective shell 8. The left side of the intake fixed mounting platform 11 is fixedly connected with the intake sealing ring 7, the top surface of the exhaust fixed mounting platform 10 is fixedly connected with the exhaust sealing ring 5, and the right side of the negative pressure fixed mounting platform 9 is fixedly connected with the negative pressure sealing ring 2. The top surfaces of the negative pressure protective shell 3, the exhaust protective shell 6 and the intake protective shell 8 are provided with equidistantly distributed threaded connection holes 17, and the bottom surfaces of the negative pressure protective shell 3, the exhaust protective shell 6 and the intake protective shell 8 are provided with sealing annular grooves 22. A negative pressure sealing ring 2 is fixedly connected to the inner side of the sealing annular groove 22 at the bottom of the pressure protection shell 3, an exhaust sealing ring 5 is fixedly connected to the inner side of the sealing annular groove 22 at the bottom of the exhaust protection shell 6, an intake sealing ring 7 is fixedly connected to the inner side of the sealing annular groove 22 at the bottom of the intake protection shell 8, the inner side of the threaded connection hole 17 is threadedly connected to a fixed connecting screw 4, and the inner side of the connecting thread groove 12 is threadedly connected to a fixed connecting screw 4. Through the action of the sealing connection assembly, when negative pressure occurs, the internal sliding connecting rod 13 is pulled, thereby compressing the internal conical spring 26, so that the intake chamber 33 is connected to the connecting chamber 32, thereby realizing secondary air replenishment.

[0032] Furthermore, an air inlet chamber sealing support ring 27 is fixedly connected at the connection between the internal connecting chamber 32 of the valve body protective shell 1 and the air inlet chamber 33, and a negative pressure chamber sealing support ring 25 is fixedly connected at the connection between the internal connecting chamber 32 of the valve body protective shell 1 and the negative pressure chamber 38. A connecting hole 28 that runs through the right side and is evenly distributed is provided on the left side outside of the air inlet chamber sealing support ring 27, and internal sliding holes 29 that run through the right side and are evenly distributed are provided on the left side inside of the air inlet chamber sealing support ring 27. A connecting sliding groove 39 that connects the connecting hole 28 and the internal sliding hole 29 and is evenly distributed is provided on the right side of the air inlet chamber sealing support ring 27.

[0033] Furthermore, the internal pushing component includes an internal sliding connecting rod 13 and an internal conical spring 26. The left side of the negative pressure chamber sealing support ring 25 is fixedly connected to the internal conical spring 26, the inner side of the negative pressure chamber sealing support ring 25 is slidingly connected to the internal sliding connecting rod 13, the left side of the internal conical spring 26 is fixedly connected to the internal sliding connecting rod 13, the inner side of the air intake chamber sealing support ring 27 is slidingly connected to the internal sliding connecting rod 13, and the outer side of the left part of the internal sliding connecting rod 13 is provided with equidistantly distributed sliding square holes, and the pushing and sealing of the reed and the valve plate are realized through the action of the internal pushing component.

[0034] Furthermore, an exhaust pipe 20 is provided in the hollow space inside the exhaust protection shell 6 , a reed internal support plate 37 is fixedly connected to the inner bottom of the exhaust protection shell 6 , and an exhaust reed connecting component is provided on the top of the reed internal support plate 37 .

[0035] Furthermore, the exhaust reed connecting component includes an elastic exhaust valve plate 18, a valve plate fixing mounting ring 19, and a countercurrent support plate 21. The bottom of the reed internal support plate 37 is fixedly connected to the countercurrent support plate 21, the top of the reed internal support plate 37 is fixedly connected to the elastic exhaust valve plate 18, the top surface of the elastic exhaust valve plate 18 is fixedly connected to the valve plate fixing mounting ring 19, the inner bottom of the exhaust pipe 20 is fixedly connected to the elastic exhaust valve plate 18, the inner bottom of the exhaust pipe 20 is fixedly connected to the valve plate fixing mounting ring 19, the top of the exhaust reed connecting component is provided with the exhaust pipe 20, and the bottom of the exhaust reed connecting component is provided with the exhaust cavity 35. Through the action of the exhaust reed connecting component, the air inside the connecting cavity 32 is replenished into the exhaust pipe 20, and the internal oil accumulation problem caused by gas backflow is avoided.

[0036] Furthermore, a negative pressure tube 36 is opened on the inner side of the negative pressure protective shell 3, a negative pressure chamber 38 is arranged at the bottom of the negative pressure protective shell 3, a negative pressure sealing assembly is arranged on the inner side of the negative pressure chamber 38, the negative pressure sealing assembly includes a negative pressure sealing valve plate 23 and a negative pressure sealing spring 24, the bottom of the negative pressure tube 36 is fixedly connected with the negative pressure sealing valve plate 23, the inner side of the negative pressure sealing valve plate 23 is slidably connected with an internal sliding connecting rod 13, the right side of the internal sliding connecting rod 13 is fixedly connected with the negative pressure sealing spring 24, and the inner side of the negative pressure chamber 38 is slidably connected with the negative pressure sealing spring 24.

[0037] Furthermore, an air intake pipe 34 is opened on the inner side of the air intake protective shell 8, and an air intake cavity 33 is arranged at the bottom of the air intake pipe 34. An air intake connecting component is arranged inside the air intake cavity 33, and the air intake connecting component is composed of an air intake sealing component and a connecting component. The air intake sealing component includes an air intake sealing valve plate 15 and an air intake sealing reed 16. The inner side of the air intake cavity 33 is slidingly connected with an internal sliding connecting rod 13, and the left side of the internal sliding connecting rod 13 is fixedly connected with the air intake sealing valve plate 15, and the left side of the internal sliding connecting rod 13 is fixedly connected with the air intake sealing reed 16. The inner side of the air intake cavity 33 is slidingly connected with the air intake sealing reed 16, and the inner side of the air intake cavity 33 is slidingly connected with the air intake sealing valve plate 15. Through the action of the air intake seal, when negative pressure occurs and secondary air replenishment is required, the air intake cavity 33 and the connecting cavity 32 are connected to each other, and when air replenishment is not required, the air intake cavity 33 and the connecting cavity 32 are closed to each other.

[0038] Furthermore, the connecting component includes a sealing sliding platform 30 and a connecting return spring 31. The inner side of the connecting hole 28 is slidingly connected with the sealing sliding platform 30, the inner side of the internal sliding hole 29 is slidingly connected with the sealing sliding platform 30, the inner side of the connecting sliding groove 39 is fixedly connected with the connecting return spring 31, the right side of the connecting return spring 31 is fixedly connected with the sealing sliding platform 30, the inner side of the connecting sliding groove 39 is slidingly connected with the sealing sliding platform 30, and the inner side of the sliding square hole 14 is slidingly connected with the sealing sliding platform 30. Through the action of the connecting component, when the air intake chamber 33 and the connecting chamber 32 are in a low negative pressure state caused by the valve plate, the sealing sliding platform 30 is pressed and pushed out of the connecting hole, so that the air intake chamber 33 and the connecting chamber 32 are connected to each other, so that the valve plate can close the connecting chamber 32 faster, so that the reed of the secondary air supply valve can be closed in time, thereby reducing the backflow problem caused by the engine exhaust and the valve volume oil problem caused by the backflow problem.

[0039] Working principle: When the engine is working, negative pressure is generated at the intake end. At this time, because the external atmospheric pressure is greater than the intake end pressure of the engine, the atmospheric pressure will push the intake sealing reed 16 to drive the internal sliding connecting rod 13 to move to the right, and the intake sealing reed 16 will move away from the air inlet of the intake pipe 34. Fresh air flows into the intake chamber 33. The suction force generated by the negative pressure on the negative pressure sealing reed 24 in the negative pressure chamber 38 is balanced with the pressure generated by the negative pressure sealing valve plate 23 on the negative pressure sealing reed 24. The intake sealing valve plate 15 does not rest on the port of the intake chamber 33. At this time, part of the fresh air in the intake chamber 33 enters the exhaust chamber 35 through the connecting chamber 32, and the other part flows into the connecting chamber 32 through the connecting hole 28 and enters the exhaust chamber 35, thereby completing the secondary air replenishment in the exhaust pipe 20. When the vehicle is traveling at a non-uniform speed, the intake sealing reed 16 and the intake sealing valve in the intake chamber 33 The plate 15 will frequently isolate the air intake chamber 33 or the air intake pipe 34, and the setting of the connecting component can make the air inside the connecting chamber 32 be discharged through the connecting hole 28 when the air intake sealing reed 16 closes the air intake chamber 33, so that the resistance of the air in the connecting chamber 32 to the air intake sealing valve plate 15 and the air intake sealing reed 16 is reduced, which can accelerate the air intake sealing valve plate 15 to close the connecting chamber 32. When the air intake sealing reed 16 opens the connecting chamber 32, fresh air can enter the connecting chamber 32 from the inner side of the air intake chamber sealing support ring 27 and the inner side of the connecting hole 28, thereby reducing the phase difference between the air intake sealing valve plate 15 and the air intake sealing reed 16. When the pressure in the negative pressure chamber 38 gradually changes from negative pressure to positive pressure, the suction force of the negative pressure on the negative pressure sealing reed 24 is reduced, and the internal sliding connecting rod 13 is gradually reset under the action of the internal conical spring 26. After resetting, the right side of the air intake sealing reed 16 is sealed against the air intake port.

[0040] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A motorcycle secondary air supply valve, comprising a valve body protective housing (1), characterized in that: The right side of the valve body protective housing (1) is fixedly connected to a negative pressure protective housing (3), the top surface of the valve body protective housing (1) is fixedly connected to an exhaust protective housing (6), the left side of the valve body protective housing (1) is fixedly connected to an intake protective housing (8), a sealing connection component is provided between the valve body protective housing (1) and the negative pressure protective housing (3), the exhaust protective housing (6) and the intake protective housing (8), an exhaust component is provided on the inner side of the exhaust protective housing (6), a negative pressure sealing component is provided on the inner side of the negative pressure protective housing (3), and an intake connecting component is provided on the inner side of the intake protective housing (8); The inner hollow of the valve body protective shell (1) is provided with a connecting cavity (32); the inner hollow of the left side of the valve body protective shell (1) is provided with an air intake cavity (33); the inner hollow of the right side of the valve body protective shell (1) is provided with a negative pressure cavity (38); the upper hollow of the valve body protective shell (1) is provided with an exhaust cavity (35); the left side of the valve body protective shell (1) is fixedly connected to an air intake fixed mounting platform (11); the left side of the air intake fixed mounting platform (11) is provided with equidistantly distributed connecting thread grooves (12); the right side of the valve body protective shell (1) is fixedly connected to a negative pressure fixed mounting platform (9); the right side of the negative pressure fixed mounting platform (9) is provided with equidistantly distributed connecting thread grooves (12); the top of the valve body protective shell (1) is fixedly connected to an exhaust fixed mounting platform (10); the top surface of the exhaust fixed mounting platform (10) is provided with equidistantly distributed connecting thread grooves (12); the inner side of the connecting cavity (32) is provided with an internal pushing component; An air inlet chamber sealing support ring (27) is fixedly connected to the connection between the internal connecting chamber (32) of the valve body protective shell (1) and the air inlet chamber (33); a negative pressure chamber sealing support ring (25) is fixedly connected to the connection between the internal connecting chamber (32) of the valve body protective shell (1) and the negative pressure chamber (38); a connecting hole (28) penetrating the right side and being evenly distributed is provided on the left side of the air inlet chamber sealing support ring (27); internal sliding holes (29) penetrating the right side and being evenly distributed are provided on the left side of the air inlet chamber sealing support ring (27); and connecting sliding grooves (39) connecting the connecting hole (28) and the internal sliding hole (29) and being evenly distributed are provided on the right side of the air inlet chamber sealing support ring (27); The internal pushing component comprises an internal sliding connecting rod (13) and an internal conical spring (26); the left side of the negative pressure chamber sealing support ring (25) is fixedly connected to the internal conical spring (26); the inner side of the negative pressure chamber sealing support ring (25) is slidably connected to the internal sliding connecting rod (13); the left side of the internal conical spring (26) is fixedly connected to the internal sliding connecting rod (13); the inner side of the air inlet chamber sealing support ring (27) is slidably connected to the internal sliding connecting rod (13); and the left outer side of the internal sliding connecting rod (13) is provided with sliding square holes (14) distributed at equal intervals; The connecting component comprises a sealing sliding platform (30) and a connecting reset spring (31); the inner side of the connecting hole (28) is slidably connected to the sealing sliding platform (30); the inner side of the internal sliding hole (29) is slidably connected to the sealing sliding platform (30); the inner side of the connecting sliding groove (39) is fixedly connected to the connecting reset spring (31); the right side of the connecting reset spring (31) is fixedly connected to the sealing sliding platform (30); the inner side of the connecting sliding groove (39) is slidably connected to the sealing sliding platform (30); and the inner side of the sliding square hole (14) is slidably connected to the sealing sliding platform (30).

2. The motorcycle secondary air supply valve according to claim 1, characterized in that: The sealing connection assembly comprises a negative pressure sealing ring (2), a negative pressure protective shell (3), a fixing connection screw (4), an exhaust sealing ring (5), an exhaust protective shell (6), an intake sealing ring (7), and an intake protective shell (8); the intake sealing ring (7) is fixedly connected to the left side of the intake fixed mounting platform (11); the exhaust sealing ring (5) is fixedly connected to the top surface of the exhaust fixed mounting platform (10); the negative pressure sealing ring (2) is fixedly connected to the right side of the negative pressure fixed mounting platform (9); the top surfaces of the negative pressure protective shell (3), the exhaust protective shell (6), and the intake protective shell (8) are provided with equidistantly distributed threaded connection holes (17); the negative pressure protective shell (3), the exhaust protective shell (6), and the intake protective shell (8) are provided with screw ... The bottom surfaces of the negative pressure protective shell (3), the exhaust protective shell (6) and the intake protective shell (8) are provided with sealing annular grooves (22); the inner side of the sealing annular groove (22) at the bottom of the negative pressure protective shell (3) is fixedly connected with a negative pressure sealing ring (2); the inner side of the sealing annular groove (22) at the bottom of the exhaust protective shell (6) is fixedly connected with an exhaust sealing ring (5); the inner side of the sealing annular groove (22) at the bottom of the intake protective shell (8) is fixedly connected with an intake sealing ring (7); the inner side of the threaded connection hole (17) is threadedly connected with a fixing connection screw (4); and the inner side of the connecting threaded groove (12) is threadedly connected with a fixing connection screw (4).

3. The motorcycle secondary air supply valve according to claim 1, characterized in that: An exhaust pipe (20) is provided in the hollow interior of the exhaust protection shell (6), a reed internal support plate (37) is fixedly connected to the bottom interior of the exhaust protection shell (6), and an exhaust reed connecting assembly is provided on the top of the reed internal support plate (37).

4. The motorcycle secondary air supply valve according to claim 3, characterized in that: The exhaust reed connecting assembly comprises an elastic exhaust valve sheet (18), a valve sheet fixing mounting ring (19), and a counterflow support plate (21); the bottom of the reed internal support plate (37) is fixedly connected to the counterflow support plate (21); the top of the reed internal support plate (37) is fixedly connected to the elastic exhaust valve sheet (18); the top surface of the elastic exhaust valve sheet (18) is fixedly connected to the valve sheet fixing mounting ring (19); the inner bottom of the exhaust pipe (20) is fixedly connected to the elastic exhaust valve sheet (18); the inner bottom of the exhaust pipe (20) is fixedly connected to the valve sheet fixing mounting ring (19); the top of the exhaust reed connecting assembly is provided with an exhaust pipe (20); and the bottom of the exhaust reed connecting assembly is provided with an exhaust cavity (35).

5. The motorcycle secondary air supply valve according to claim 1, characterized in that: A negative pressure tube (36) is provided on the inner side of the negative pressure protective shell (3), a negative pressure chamber (38) is provided on the bottom of the negative pressure protective shell (3), a negative pressure sealing assembly is provided on the inner side of the negative pressure chamber (38), and the negative pressure sealing assembly comprises a negative pressure sealing valve plate (23) and a negative pressure sealing reed plate (24), the bottom of the negative pressure tube (36) is fixedly connected to the negative pressure sealing valve plate (23), the inner side of the negative pressure sealing valve plate (23) is slidably connected to an internal sliding connecting rod (13), the right side of the internal sliding connecting rod (13) is fixedly connected to the negative pressure sealing reed plate (24), and the inner side of the negative pressure chamber (38) is slidably connected to the negative pressure sealing reed plate (24).

6. The motorcycle secondary air supply valve according to claim 1, characterized in that: An air intake pipe (34) is provided on the inner side of the air intake protective housing (8), an air intake cavity (33) is provided at the bottom of the air intake pipe (34), an air intake connecting assembly is provided inside the air intake cavity (33), the air intake connecting assembly is composed of an air intake sealing assembly and a connecting assembly, the air intake sealing assembly comprises an air intake sealing valve plate (15) and an air intake sealing reed plate (16), an inner side of the air intake cavity (33) is slidably connected to an internal sliding connecting rod (13), the left side of the internal sliding connecting rod (13) is fixedly connected to the air intake sealing valve plate (15), the left side of the internal sliding connecting rod (13) is fixedly connected to the air intake sealing reed plate (16), the inner side of the air intake cavity (33) is slidably connected to the air intake sealing reed plate (16), and the inner side of the air intake cavity (33) is slidably connected to the air intake sealing valve plate (15).

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