Environment-friendly intelligent electric control rotary valve diaphragm type carburetor

Abstract

The invention relates to the technical field of carburetors, and discloses an environment-friendly intelligent electric control rotary valve diaphragm type carburetor which comprises a main shell, an oil storage cup is fixedly installed at the lower end of the main shell, an oil needle tube and an idling nozzle are fixedly installed on the portion, located in the oil storage cup, of the main shell, and a floater mechanism is movably installed in the oil storage cup and comprises two floaters. A connecting frame is fixedly connected between the two floaters, an anti-surge cover is further movably installed on the lower portion of the connecting frame, and an idling pipe is arranged on one side in the main shell and communicated with an inner cavity of the oil storage cup. When a vehicle shakes, the anti-surge cover can divide and block the flowing path of oil and reduce the surge amplitude and speed of the oil, the situation that local oil is too much or too little instantly due to disordered surge of the oil is avoided, it is guaranteed that stable oil supply exists around an oil needle tube and an idle nozzle all the time, and therefore the situation that the oil supply is not coherent, and the oil supply speed is high is avoided. Therefore, the problems of unstable working, idling jitter, even flameout and the like of the engine are solved.

Description

Technical Field

[0001] The invention relates to the technical field of carburetors, and in particular to an environmentally friendly intelligent electric-controlled rotary valve diaphragm carburetors. Background Art

[0002] The carburetor is a key component of a fuel engine. It accurately atomizes gasoline and mixes it with air in proportion according to different engine working conditions to form a combustible mixture and send it into the cylinder. During starting, idling, acceleration and other conditions, it continuously and stably supplies the appropriate mixture to ensure the smooth operation and power output of the engine. It is widely used in automobiles, motorcycles and other fields. Since the vehicle will inevitably shake during driving, the oil in the oil storage cup of the traditional carburetor is prone to surge when the vehicle shakes. This is because the acceleration, deceleration, turning and bumping of the vehicle will cause the oil to surge greatly under the action of inertia. This disordered surge often leads to an instantaneous excess or shortage of local oil, making it impossible to obtain a stable oil supply around the oil needle tube and the idle nozzle, which in turn causes the engine to work unstably and cause idle jitter problems. In severe cases, it may even cause the engine to stall, greatly affecting the normal operation and driving experience of the vehicle. In addition, in the existing carburetor structure, the adjustment method for the amount of air entering the main housing through the intake pipe is relatively simple, and it is difficult to accurately adapt to the engine's demand for air volume under different working conditions. Moreover, when the valve stem drives the valve plate to rotate to close the channel in the intake pipe, due to the lack of an effective adjustment structure, the fitting effect between the valve plate and the sealing ring is not good, which not only reduces the closing effect, causes air leakage, and affects the combustion efficiency of the engine, but also shortens the service life of the valve plate due to frequent friction, and increases the maintenance cost and repair frequency of the equipment. Summary of the invention

[0003] The purpose of the present invention is to provide an environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: An environmentally friendly intelligent electric control rotary valve diaphragm carburetor comprises a main shell, an oil storage cup is fixedly installed at the lower end of the main shell, an oil needle tube and an idle nozzle are fixedly installed on the main shell located in the oil storage cup, a float mechanism is movably installed in the oil storage cup, the float mechanism comprises two floats, a connecting frame is fixedly connected between the two floats, an anti-surge cover is movably installed below the connecting frame, an idle pipe is opened on one side of the main shell, and the idle pipe is communicated with the inner cavity of the oil storage cup, and the main shell located above the oil needle tube A plunger connecting valve is also movably installed inside, an intake pipe is also fixedly installed on one side of the main shell body, a stepper motor is fixedly installed on the intake pipe, a valve stem is fixedly connected to the output end of the stepper motor, the lower end of the valve stem extends into the intake pipe, a plurality of first fixing seats are fixedly installed on the inner side of the valve stem, a plurality of mounting seats are movably installed on the other side of the valve stem, a displacement block is movably connected between the ten and the mounting seat, an insertion rod is also inserted and installed in the valve stem located on one side of the plurality of displacement blocks, and a valve plate is also movably installed on one side of the valve stem located in the intake pipe.

[0005] As a further preferred embodiment of the present invention, the surge protection cover is a porous structure, a sleeve hole is provided in the surge protection cover, and the transverse cross section of the sleeve hole is the same as the transverse cross section of the oil needle tube and the idle nozzle.

[0006] As a further preferred embodiment of the present invention, two connecting shafts are fixedly installed on the anti-surge cover, and the upper ends of the two connecting shafts are respectively inserted through the connecting frame and installed in the connecting frame and limited by the retaining springs. A surge cover is arranged between the two floats, and the surge cover is also inserted through the sleeve hole on the outside of the oil needle tube and the idle nozzle, so as to prevent the fuel in the oil storage cup from surging when the vehicle shakes, thereby reducing the occurrence of discontinuous oil supply in the oil needle tube or the idle nozzle.

[0007] As a further preferred embodiment of the present invention, a sealing ring is fixedly installed on the inner side of the intake pipe, an axial groove is provided at the bottom of the intake pipe near the sealing ring, a second fixing seat is fixedly installed at the bottom of the axial groove, and a sealing ring is arranged in the intake pipe to cooperate with the valve plate to achieve sealing of the intake pipe channel, thereby ensuring the idle pipe air intake and making the idle air intake stable.

[0008] As a further preferred embodiment of the present invention, a plurality of second mounting holes are opened on one side of the valve stem, and the second mounting holes are at the same horizontal position as one of the first fixing seats.

[0009] As a further preferred embodiment of the present invention, a displacement groove is provided on one side of the mounting seat, the longitudinal cross-section of the displacement groove is polygonal and has the same shape as the longitudinal cross-section of the displacement block, and a second limit screw is inserted and installed in the mounting seat, one end of the second limit screw is threadedly connected to one side of the first fixed seat, and a side plate is fixedly installed on the side of the displacement block away from the mounting seat, and a plurality of top blocks are fixedly installed on the side of the side plate away from the displacement block, and the plurality of top blocks are inserted through the outside of the first fixed seat, and one side of the top block is also inserted and installed in the insertion hole. The top block is movably installed in the valve stem through the side plate, the displacement block and the mounting seat, so that the horizontal displacement of the valve plate can be achieved in cooperation with the insertion rod.

[0010] As a further preferred embodiment of the present invention, a plurality of first mounting holes are vertically opened in the middle of the valve plate, a first limiting screw is inserted and installed in the first mounting hole, one end of the first limiting screw is threadedly connected in the corresponding first fixing seat, a compression spring is also mounted on the outside of the first limiting screw, one side of the compression spring abuts against one side of the valve plate, and the other side of the compression spring abuts against the end of the first limiting screw.

[0011] As a further preferred embodiment of the present invention, the longitudinal cross-section of the plug rod is polygonal, and a plurality of protrusions are fixedly installed on the outside of the plug rod, and the protrusions are also located obliquely below one of the side panels. The upper end of the plug rod is inserted and installed in the through hole at the top of the valve stem, and the lower end of the plug rod passes through the through hole at the bottom of the valve stem and extends to the recessed groove at the lower end of the valve stem. When the valve stem rotates, it will synchronously drive the plug rod to rotate, so that when the valve stem drives the valve plate to close the channel in the intake pipe, the socket in the shaft groove will push the plug rod upward, so that the plug rod cooperates with the multiple protrusions on the outside to synchronously squeeze and displace the multiple side panels, thereby cooperating with the top block to squeeze and displace the valve plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the vehicle shakes, the surge shield will divide and block the flow path of the oil, reduce its surge amplitude and speed, avoid the disordered surge of the oil causing the local oil to be too much or too little at the moment, ensure that there is always a stable supply of oil around the oil needle tube and the idle nozzle, and thus prevent the problems of unstable engine operation, idle jitter and even flameout caused by the incoherent oil supply; In the present invention, the valve stem and valve plate can be driven to rotate by a stepper motor, thereby adjusting the amount of air entering the main shell through the intake pipe, and a plurality of groups of first fixed seats, mounting seats, displacement blocks, top blocks and other structures are arranged in the valve stem, which can cooperate with the top block, protrusion and second fixed seat to realize that when the valve stem drives the valve plate to rotate to close the channel in the intake pipe, the valve plate is pushed to displace and one side of the valve plate is tightly fitted to one side of the sealing ring, thereby improving the closing effect and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a cross-sectional view of the main structure of the present invention; Figure 3 It is a schematic diagram of the structure of the float mechanism of the present invention; Figure 4 is a first cross-sectional view of an air intake pipe of the present invention; Figure 5 is a second cross-sectional view of the air intake pipe of the present invention; Figure 6 is a cross-sectional view of a valve stem of the present invention; Figure 7 for Figure 6 The enlarged view of point A in the middle; Figure 8 It is a schematic diagram of the split structure of the mounting seat, displacement block and top block of the present invention.

[0014] In the figure: 1. main housing; 2. oil needle tube; 3. idle nozzle; 4. float mechanism; 5. float; 6. connecting frame; 7. surge protection cover; 8. idle pipe; 9. plunger valve; 10. intake pipe; 11. stepper motor; 12. valve stem; 13. first fixed seat; 14. mounting seat; 15. displacement block; 16. plug rod; 17. valve plate; 18. sleeve hole; 19. connecting shaft; 20. sealing ring; 21. shaft groove; 22. second fixed seat; 23. plug hole; 24. displacement groove; 25. side plate; 26. top block; 27. bump; 28. first mounting hole; 29. ​​first limit screw; 30. compression spring; 31. oil storage cup; 32. second mounting hole; 33. second limit screw. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1-Figure 8As shown, an environmentally friendly intelligent electric-controlled rotary valve diaphragm carburetor provided by the present invention comprises a main housing 1, an oil storage cup 31 is fixedly installed at the lower end of the main housing 1, an oil needle tube 2 and an idle nozzle 3 are fixedly installed on the main housing 1 located in the oil storage cup 31, a float mechanism 4 is movably installed in the oil storage cup 31, the float mechanism 4 comprises two floats 5, a connecting frame 6 is fixedly connected between the two floats 5, an anti-surge cover 7 is movably installed below the connecting frame 6, an idle pipe 8 is opened on one side of the main housing 1, and the idle pipe 8 is communicated with the inner cavity of the oil storage cup 31, and a movable float mechanism 4 is installed in the main housing 1 located above the oil needle tube 2. A plunger connecting valve 9 is installed, and an intake pipe 10 is also fixedly installed on one side of the main shell 1. A stepper motor 11 is fixedly installed on the intake pipe 10, and a valve stem 12 is fixedly connected to the output end of the stepper motor 11. The lower end of the valve stem 12 extends into the intake pipe 10, and a plurality of first fixed seats 13 are fixedly installed on the inner side of the valve stem 12, and a plurality of mounting seats 14 are movably installed on the other side of the valve stem 12. A displacement block 15 is movably connected between the ten and the mounting seat 14, and an insertion rod 16 is also inserted and installed in the valve stem 12 located on one side of the plurality of displacement blocks 15, and a valve plate 17 is also movably installed on one side of the valve stem 12 located in the intake pipe 10.

[0017] like Figure 2-Figure 3 As shown, the surge protection cover 7 is a porous structure, and a sleeve hole 18 is opened in the surge protection cover 7. The transverse section of the sleeve hole 18 is the same as the transverse section of the oil needle tube 2 and the idle nozzle 3. Two connecting shafts 19 are fixedly installed on the surge protection cover 7. The upper ends of the two connecting shafts 19 pass through the connecting frame 6 and are installed in the connecting frame 6 and are limited by the retaining spring. The surge protection cover 7 is arranged between the two floats 5, and the surge protection cover 7 is also inserted into the outer side of the oil needle tube 2 and the idle nozzle 3 through the sleeve hole 18, which can prevent the fuel in the oil storage cup 31 from surging when the vehicle is shaking, thereby reducing the occurrence of discontinuous oil supply in the oil needle tube 2 or the idle nozzle 3.

[0018] like Figure 1 , Figure 4-Figure 8As shown, a sealing ring 20 is fixedly installed on the inner side of the intake pipe 10, and an axial groove 21 is also opened at the bottom of the intake pipe 10 near the sealing ring 20. A second fixing seat 22 is fixedly installed at the bottom of the axial groove 21. The sealing ring 20 is arranged in the intake pipe 10 to cooperate with the valve plate 17 to achieve sealing of the intake pipe 10 channel, thereby ensuring the idle pipe 8 to intake air and making the idle intake stable. A plurality of second mounting holes 32 are opened on one side of the valve stem 12, and the second mounting holes 32 are at the same horizontal position as one of the first fixing seats 13. A displacement groove 24 is opened on one side of the mounting seat 14, and the longitudinal direction of the displacement groove 24 The cross section is polygonal and has the same shape as the longitudinal cross section of the displacement block 15, and a second limiting screw 33 is inserted and installed in the mounting seat 14, one end of which is threadedly connected to the side of the first fixing seat 13, and a side plate 25 is fixedly installed on the side of the displacement block 15 away from the mounting seat 14, and a plurality of top blocks 26 are fixedly installed on the side of the side plate 25 away from the displacement block 15, and a plurality of top blocks 26 are inserted outside the first fixing seat 13, and one side of the top block 26 is also inserted and installed in the insertion hole 23, and the top block 26 is movably installed in the valve stem 12 through the side plate 25, the displacement block 15 and the mounting seat 14, that is, The plug rod 16 can be used to realize the horizontal displacement of the valve plate 17. A plurality of first mounting holes 28 are vertically opened in the middle of the valve plate 17. A first limiting screw 29 is inserted and installed in the first mounting hole 28. One end of the first limiting screw 29 is threadedly connected to the corresponding first fixing seat 13. A compression spring 30 is also mounted on the outside of the first limiting screw 29, and one side of the compression spring 30 abuts against one side of the valve plate 17, and the other side of the compression spring 30 abuts against the end of the first limiting screw 29. The longitudinal cross-section of the plug rod 16 is polygonal, and a plurality of protrusions 27 are fixedly installed on the outside of the plug rod 16, and the protrusions 27 also Located at an angle below one of the side plates 25, the upper end of the plug rod 16 is inserted and installed in the through hole at the top of the valve stem 12, and the lower end of the plug rod 16 passes through the through hole at the bottom of the valve stem 12 and extends to the recessed groove at the lower end of the valve stem 12. When the valve stem 12 rotates, it will synchronously drive the plug rod 16 to rotate, so that when the valve stem 12 drives the valve plate 17 to close the channel in the intake pipe 10, the socket 23 in the shaft groove 21 pushes the plug rod 16 upward, so that the plug rod 16 cooperates with the multiple protrusions 27 on the outside to synchronously squeeze and displace the multiple side plates 25, thereby cooperating with the top block 26 to squeeze and displace the valve plate 17.

[0019] It should be noted that the present invention is an environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor. When the vehicle shakes during driving, the oil in the oil storage cup 31 will surge under the action of inertia. At this time, the porous structure of the anti-surge cover 7 can divide and block the flow path of the oil. Since it is sleeved on the outside of the oil needle tube 2 and the idle nozzle 3, the oil is restricted by the anti-surge cover 7 when surging, and cannot directly impact the inlet below the oil needle tube 2 and the idle nozzle 3. This effectively reduces the amplitude and speed of the oil surge, avoids the situation where the local oil is too much or too little at the moment, ensures that there is always a stable supply of oil around the oil needle tube 2 and the idle nozzle 3, and thus prevents problems such as unstable engine operation, idle jitter and even flameout due to inconsistent oil supply; When adjusting the air intake in the main housing 1, the valve stem 12 can be rotated by controlling the stepper motor 11, so that the valve stem 12 drives the valve plate 17 to rotate in the intake pipe 10, and the air intake can be adjusted by adjusting the channel in the intake pipe 10. For example, when the engine is just started or idling, the stepper motor 11 drives the valve plate 17 to cooperate with the sealing ring 20 to close the intake pipe 10 through the valve stem 12, so that the idle air intake and the supply of fuel are realized with the help of the idle pipe 8. When the valve stem 12 drives the valve plate 17 to rotate, that is, after the valve plate 17 rotates and is at the same horizontal position as the sealing ring 20, the valve stem 12 synchronously drives the plug rod 16 to rotate, and the lower end of the plug rod 16 rotates with the valve stem 12 and contacts the second fixed seat 22, so that the plug rod 16 is fixed by the second fixed seat 22. The push-up movement causes the insertion rod 16 to move upward in the valve stem 12 and synchronously squeeze the corresponding side plates 25 to one side with the help of the multiple protrusions 27 on the outside. Therefore, the side plate 25 drives the multiple push blocks 26 on one side to move in the corresponding insertion hole 23, so that one side of the push block 26 passes through the insertion hole 23 to push the valve plate 17 toward the sealing ring 20, and the valve plate 17 moves horizontally on the multiple first limit screws 29 through the multiple first mounting holes 28 inside and compresses the compression spring 30, so that one side of the valve plate 17 can be tightly fitted on the side of the sealing ring 20, and the closure of the intake pipe 10 channel can be achieved. In later use, it can also avoid the situation where the intake pipe 10 is not closed tightly due to the aging of the valve plate 17 material and the aging of the sealing ring, thereby improving the service life.

[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor, characterized in that: The invention comprises a main housing (1), an oil storage cup (31) is fixedly mounted on the lower end of the main housing (1), an oil needle tube (2) and an idle nozzle (3) are fixedly mounted on the main housing (1) located inside the oil storage cup (31), a float mechanism (4) is movably mounted inside the oil storage cup (31), the float mechanism (4) comprises two floats (5), a connecting frame (6) is fixedly connected between the two floats (5), an anti-surge cover (7) is movably mounted below the connecting frame (6), an idle pipe (8) is opened on one side of the main housing (1), and the idle pipe (8) is communicated with the inner cavity of the oil storage cup (31), a plunger valve (9) is movably mounted inside the main housing (1) located above the oil needle tube (2), and the An air intake pipe (10) is also fixedly mounted on one side of the main housing (1), a stepper motor (11) is fixedly mounted on the air intake pipe (10), an output end of the stepper motor (11) is fixedly connected to a valve stem (12), a lower end of the valve stem (12) extends into the air intake pipe (10), a plurality of first fixed seats (13) are fixedly mounted on the inner side of the valve stem (12), a plurality of mounting seats (14) are movably mounted on the other side of the valve stem (12), a displacement block (15) is movably connected between the first fixed seat and the mounting seat (14), an insertion rod (16) is also inserted and mounted in the valve stem (12) located on one side of the plurality of displacement blocks (15), and a valve plate (17) is also movably mounted on one side of the valve stem (12) located in the air intake pipe (10).

2. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 1 is characterized by: The surge protection cover (7) is a porous structure, and a sleeve hole (18) is provided in the surge protection cover (7). The transverse cross section of the sleeve hole (18) is the same as the transverse cross section of the oil needle tube (2) and the idle nozzle (3).

3. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 2 is characterized by: Two connecting shafts (19) are fixedly mounted on the surge protection cover (7), and the upper ends of the two connecting shafts (19) respectively pass through the connecting frame (6) and are inserted into the connecting frame (6) and are limited by a retaining spring.

4. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 1 is characterized by: A sealing ring (20) is fixedly mounted on the inner side of the air intake pipe (10), an axial groove (21) is also provided at the inner bottom of the air intake pipe (10) near the sealing ring (20), and a second fixing seat (22) is fixedly mounted at the inner bottom of the axial groove (21).

5. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 4 is characterized by: A plurality of second mounting holes (32) are formed on one side of the valve stem (12), and the second mounting holes (32) are located at the same horizontal position as one of the first fixing seats (13).

6. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 5 is characterized by: A displacement groove (24) is provided on one side of the mounting seat (14), the longitudinal cross section of the displacement groove (24) being polygonal and having the same shape as the longitudinal cross section of the displacement block (15), and a second limit screw (33) is inserted and installed in the mounting seat (14), one end of the second limit screw (33) being threadedly connected to one side of the first fixing seat (13), a side plate (25) is fixedly installed on the side of the displacement block (15) facing away from the mounting seat (14), and a plurality of top blocks (26) are fixedly installed on the side of the side plate (25) facing away from the displacement block (15), the plurality of top blocks (26) are inserted on the outside of the first fixing seat (13), and one side of the top block (26) is also inserted and installed in the insertion hole (23).

7. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 6 is characterized by: A plurality of first mounting holes (28) are vertically opened in the middle of the valve plate (17), and a first limiting screw (29) is inserted and installed in the first mounting hole (28). One end of the first limiting screw (29) is threadedly connected in the corresponding first fixing seat (13), and a compression spring (30) is also sleeved on the outer side of the first limiting screw (29), and one side of the compression spring (30) abuts against one side of the valve plate (17), and the other side of the compression spring (30) abuts against the end of the first limiting screw (29).

8. The environmentally friendly intelligent electronically controlled rotary valve diaphragm carburetor according to claim 1 is characterized by: The longitudinal cross-section of the plug rod (16) is polygonal, and a plurality of protrusions (27) are fixedly mounted on the outer side of the plug rod (16), and the protrusions (27) are also located obliquely below one of the side plates (25). The upper end of the plug rod (16) is inserted into a through hole at the top of the valve stem (12), and the lower end of the plug rod (16) passes through a through hole at the bottom of the valve stem (12) and extends to a recessed groove at the lower end of the valve stem (12).

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