Intelligent control device for carburetor

Abstract

The application discloses a carburetor intelligent control device and relates to the technical field of carburetors. The device comprises a carburetor main body, a float chamber is arranged at the bottom of the carburetor main body, a main nozzle is arranged in the middle region of the float chamber, a plunger is slidably arranged at the top end of the carburetor main body, a transmission adjusting mechanism is arranged in a device shell, a limiting assembly is arranged at the top of the device shell, a first gear is arranged on the left end surface of a first transmission shaft, a second transmission shaft is arranged below the first transmission shaft, a second gear and a third gear are arranged on the left end surface of the second transmission shaft, and a fourth gear is rotatably connected to the left end surface of the second transmission shaft. The range of the position of the oil needle is adjusted to accurately adapt to the fuel working condition of high-altitude and plain areas. Under the premise that the operation habit of a driver (the same accelerator) is not changed, the fuel supply amount is adjusted, fatigue loss is reduced, and the service life of a reset spring is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carburetor, in particular to a kind of carburetor intelligent control device. BACKGROUND

[0002] Carburetor is the core device that traditional internal combustion engine (such as gasoline engine) mixes gasoline and air into combustible mixture in proportion, realizes fuel atomization and proportioning by mechanical structure using intake negative pressure, provides qualified mixture for engine combustion, and is the key component of early fuel supply system.

[0003] However, when carburetor is used in high altitude area, due to low atmospheric pressure and thin air in high altitude area, the amount of air entering the carburetor decreases under the same throttle opening, which leads to over-concentration of mixture, combustion efficiency decreases, and further causes a series of problems such as engine power attenuation, starting difficulty, etc. The existing carburetor is not convenient to adjust the oil needle telescopic range for high altitude and plain area, and the spring inside the carburetor will gradually fail due to fatigue and other problems after long-term use, thereby affecting the stability of carburetor operation.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original carburetor. SUMMARY

[0005] The present application aims to provide a kind of carburetor intelligent control device, to solve the above background technical problems that are not convenient to adjust the oil needle telescopic range for high altitude and plain area and the spring will gradually fail due to fatigue and other problems after long-term use, the technical scheme of the present application provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single.

[0006] To achieve the above object, the present application provides the following technical scheme: a kind of carburetor intelligent control device, including carburetor main body, the bottom of the carburetor main body is installed with float chamber, the inside middle area of the float chamber is installed with main nozzle, the main nozzle is communicated with the inside of carburetor main body, the top of the carburetor main body is fixedly connected with device shell, the inside of the carburetor main body is limited to slide with plunger at top end, the bottom of the plunger is installed with oil needle, and extends to the inside of main nozzle, transmission adjusting mechanism is installed in the device shell, and limit assembly is installed on the top of the device shell.

[0007] The transmission adjusting mechanism comprises a first transmission shaft rotatably connected to the inner walls at both ends of the device shell, a first gear is sleeved on the left end surface of the first transmission shaft, a second transmission shaft is arranged below the first transmission shaft, movable blocks are rotatably connected to both ends of the second transmission shaft, the movable blocks are limited to slide in the sliding grooves formed in the inner walls of the device shell away from the second transmission shaft, a second gear and a third gear are sleeved on the left end surface of the second transmission shaft, a fourth gear is rotatably connected to the left end surface of the second transmission shaft, the tooth surface of the second gear is engaged with the tooth surface of the first gear, and an adjusting assembly is mounted in the second transmission shaft.

[0008] Preferably, the adjusting assembly comprises a connecting block limited to slide in the second transmission shaft, the connecting block is connected to the inner walls of the second gear and the third gear through connecting rods, the connecting rods are limited to slide in the sliding grooves formed in the surface of the second transmission shaft, a first oil tank is fixedly connected to the right end of the second transmission shaft, an electric push rod is fixedly connected to the top of the first oil tank, a first piston rod is limited to slide in the first oil tank, the output end of the first piston rod and the electric push rod is connected to the right end of the connecting block, a second oil tank is fixedly connected to the right side of the device shell and located on the surface of the carburetor body, a second piston rod is limited to slide in the second oil tank, the output end of the second piston rod extends into the device shell and is fixedly connected to a first abutting block, a push rod is arranged above the first abutting block, and one end of the push rod away from the first abutting block is fixedly connected to one side of the movable block.

[0009] Preferably, the limiting assembly comprises a sliding plate arranged above the first transmission shaft, the sliding plate is limited to slide in the sliding grooves formed in the inner walls of the device shell at both ends, reset springs are fixedly connected to both ends of the top of the sliding plate, a throttle wire is fixedly connected between the reset springs on the top of the sliding plate, a sleeve is sleeved on the throttle wire, the bottom of the sleeve is fixedly connected to the top of the sliding plate, an abutting disc is sleeved on the top end of the sleeve, a second abutting block is arranged on the periphery of the abutting disc, the second abutting block is limited to slide horizontally in the top chamber of the device shell, the top of the reset spring extends into the top chamber of the device shell and abuts against the second abutting block, a guide groove is formed in the periphery surface of the sleeve, and a guide rod is fixedly connected to the position corresponding to the guide groove in the abutting disc.

[0010] Preferably, a first gear rack is fixedly connected to the bottom of the sliding plate, the tooth surface of the first gear rack is engaged with the tooth surface of the first gear, a second gear rack is fixedly connected to the top of the plunger, and the tooth surface of the second gear rack is engaged with the tooth surface of the fourth gear.

[0011] Preferably, a ratchet wheel is fixedly connected to the right side of the second transmission shaft, a pawl is rotatably connected to the right side of the fourth gear through a torsional spring corresponding to the tooth surface of the ratchet wheel, and an electromagnet is mounted on the back end of the pawl on the right side of the fourth gear.

[0012] Preferably, the number of teeth of the second gear is more than that of the third gear by several groups, and the abutting surface of the first abutting block is provided as an inclined surface structure.

[0013] Preferably, the oil liquid chamber on the left side of the second oil liquid tank is connected with the oil liquid chamber on the left side of the first oil liquid tank through an oil conveying hose, and the surface of the second piston rod is sleeved with an extension spring.

[0014] Preferably, the guide groove is provided as a spiral structure along the outer peripheral surface of the sleeve, and the guide rod is limited to slide in the guide groove.

[0015] Preferably, the abutting disc is provided as an elliptical structure, and the abutting surface of the second abutting block is provided as an inclined surface structure.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application is provided with a first transmission shaft, a first gear, a second transmission shaft, a moving block, a second gear, a third gear, a fourth gear and an adjusting assembly. The rotation of the first transmission shaft drives the first gear to rotate synchronously. According to the altitude, the adjusting assembly controls the electric push rod to push the connecting block to move, which drives the second gear and the third gear to move horizontally on the surface of the second transmission shaft, so as to realize different meshing relationships with the first gear and achieve different transmission ratios. Then, the rotation of the second transmission shaft drives the second rack to rise, which drives the plunger to rise, and the plunger drives the oil needle to rise to supply oil for the internal combustion engine. In the premise of the same throttle, the range of the position of the oil needle is adjusted to accurately adapt to the fuel working condition in high altitude and plain areas without changing the operation habit of the driver (the same throttle).

[0018] The present application is provided with a sliding plate, a reset spring, a throttle wire, a sleeve, an abutting disc, a second abutting block, a guide groove and a guide rod. When the throttle wire pulls the sliding plate to move upward, the sleeve and the reset spring are driven to move upward. The upward movement of the sleeve cooperates with the guide groove and the guide rod to drive the abutting disc to rotate, so that the second abutting block is retracted inward under the abutment of the reset spring. The range of the space at the top of the reset spring is adjusted according to the compression degree of the reset spring, so as to avoid the excessive compression and impact of the reset spring when the throttle wire is pulled, thereby reducing the fatigue loss and increasing the service life of the reset spring. The problem that the spring inside the carburetor gradually fails due to fatigue after long-term use is solved, and the stability of the operation of the carburetor is affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is the present application Figure 1Structure enlarged schematic view at A in the figure;

[0021] Figure 3 Structure enlarged schematic view at B in the figure; Figure 1 Structure enlarged schematic view at B in the figure;

[0022] Figure 4 Structure enlarged schematic view at C in the figure;

[0023] Figure 5 Structure enlarged schematic view at C in the figure; Figure 4 Structure enlarged schematic view at C in the figure;

[0024] Figure 6 Structure enlarged schematic view at C in the figure;

[0025] Figure 7 Structure enlarged schematic view at C in the figure;

[0026] Figure 8 Structure enlarged schematic view at C in the figure.

[0027] In the figure: 1, carburetor main body; 2, float chamber; 3, main jet; 4, device shell; 5, plunger; 6, oil needle; 71, first transmission shaft; 72, first gear; 73, second transmission shaft; 74, moving block; 75, second gear; 76, third gear; 77, fourth gear; 781, connecting block; 782, first oil tank; 783, first piston rod; 784, second oil tank; 785, second piston rod; 786, first contact block; 787, push rod; 81, sliding plate; 82, return spring; 83, throttle wire; 84, sleeve; 85, contact disc; 86, second contact block; 87, guide groove; 88, guide rod; 9, first rack; 10, second rack; 11, ratchet wheel; 12, pawl; 13, electromagnet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-8The application provides a technical scheme: an intelligent control device for a carburetor, which comprises a carburetor main body 1, a float chamber 2 is installed at the bottom of the carburetor main body 1, a main nozzle 3 is installed at the middle area inside the float chamber 2, the main nozzle 3 is communicated with the inside of the carburetor main body 1, a device shell 4 is fixedly connected to the top of the carburetor main body 1, a plunger 5 is limitingly and slidably arranged at the top inside the carburetor main body 1, an oil needle 6 is installed at the bottom of the plunger 5 and extends into the inside of the main nozzle 3, a transmission adjusting mechanism is installed in the device shell 4, and a limiting assembly is installed at the top of the device shell 4.

[0030] The transmission adjusting mechanism comprises a first transmission shaft 71 rotatably connected to the inner walls at both ends of the device shell 4, a first gear 72 is sleeved on the left end surface of the first transmission shaft 71, a second transmission shaft 73 is arranged below the first transmission shaft 71, movable blocks 74 are rotatably connected to the two ends of the second transmission shaft 73, the movable blocks 74 are limitingly and slidably arranged in the slits formed in the inner walls of the device shell 4 away from the second transmission shaft 73, a second gear 75 and a third gear 76 are sleeved on the left end surface of the second transmission shaft 73, a fourth gear 77 is rotatably connected to the left end surface of the second transmission shaft 73, the tooth surface of the second gear 75 is engaged with the tooth surface of the first gear 72, the number of teeth of the second gear 75 is more than that of the third gear 76 by several groups, a second rack 10 is fixedly connected to the top of the plunger 5, the tooth surface of the second rack 10 is engaged with the tooth surface of the fourth gear 77, and an adjusting assembly is installed in the inside of the second transmission shaft 73.

[0031] The upward movement of the first rack 9 drives the rotation of the first gear 72 engaged with the first rack 9, the rotation of the first gear 72 drives the rotation of the second gear 75, the rotation of the second gear 75 drives the rotation of the second transmission shaft 73, the rotation of the second transmission shaft 73 drives the rotation of the fourth gear 77 on the right side of the second transmission shaft 73, the rotation of the fourth gear 77 drives the upward movement of the second rack 10 engaged with the fourth gear 77, the upward movement of the second rack 10 drives the upward movement of the plunger 5, the upward movement of the plunger 5 drives the upward movement of the oil needle 6, the position of the oil needle 6 in the main nozzle 3 is raised, and the main nozzle 3 is communicated with the inside of the carburetor main body 1.

[0032] As an embodiment of the present application, the adjusting assembly comprises a connecting block 781 slidingly limited in the second transmission shaft 73, the connecting block 781 is connected with the inner wall of the second gear 75 and the third gear 76 through connecting rods at both ends, the connecting rods are slidingly limited in the sliding grooves opened on the surface of the second transmission shaft 73, the right end of the second transmission shaft 73 is fixedly connected with a first oil tank 782, the top of the first oil tank 782 is fixedly connected with an electric push rod, the first oil tank 782 is slidingly limited with a first piston rod 783 inside, the output end of the first piston rod 783 and the electric push rod is connected with the right end of the connecting block 781, the right side of the device shell 4 is fixedly connected with a second oil tank 784 on the surface of the carburetor main body 1, the second oil tank 784 is slidingly limited with a second piston rod 785 inside, the output end of the second piston rod 785 extends to the inside of the device shell 4 and is fixedly connected with a first abutting block 786, the abutting surface of the first abutting block 786 is provided as an inclined surface structure, a push rod 787 is arranged above the first abutting block 786, one end of the push rod 787 away from the first abutting block 786 is fixedly connected with one side of the moving block 74, the oil chamber on the left side of the first oil tank 782 is communicated with the oil chamber on the left side of the second oil tank 784 through an oil delivery hose, and the surface of the second piston rod 785 is sleeved with a telescopic spring.

[0033] The electric push rod is started to push the connecting block 781 to move left, the connecting block 781 drives the second gear 75 and the third gear 76 to move on the second transmission shaft 73 along the sliding grooves through the connecting rods, until the third gear 76 moves below the first gear 72, while the connecting block 781 moves left, the first piston rod 783 is driven to move left in the first oil tank 782, the oil in the first oil tank 782 is squeezed and enters the second oil tank 784 through the oil delivery hose, the second piston rod 785 is pushed to move right, the second piston rod 785 pushes the first abutting block 786 to move right, under the action of the inclined surface of the first abutting block 786, the push rod 787 is pushed to move upward, and then the moving block 74 is pushed to move upward, the moving block 74 drives the second transmission shaft 73 to move upward, and finally the third gear 76 is engaged with the first gear 72.

[0034] As one of the embodiments of the present application, the limiting assembly comprises a sliding plate 81 arranged above the first transmission shaft 71, the two ends of the sliding plate 81 are limited to slide in the sliding grooves arranged on the inner wall of the device shell 4, the top of the sliding plate 81 is fixedly connected with return springs 82, the top of the sliding plate 81 is fixedly connected with a throttle line 83 between the return springs 82, the throttle line 83 is sleeved with a sleeve 84, the bottom of the sleeve 84 is fixedly connected with the top of the sliding plate 81, the top end of the sleeve 84 is sleeved with a contact disc 85, the contact disc 85 is arranged with a second contact block 86, the second contact block 86 is horizontally limited to slide in the top chamber of the device shell 4, the contact disc 85 is arranged in an elliptical structure, the contact surface of the second contact block 86 is arranged in an inclined surface structure, the top of the return spring 82 extends into the top chamber of the device shell 4 and abuts against the second contact block 86, the outer surface of the sleeve 84 is provided with a guide groove 87, a guide rod 88 is fixedly connected with the position corresponding to the guide groove 87 in the contact disc 85, the guide groove 87 is arranged in a spiral structure along the outer surface of the sleeve 84, and the guide rod 88 is limited to slide in the guide groove 87. The bottom of the sliding plate 81 is fixedly connected with a first gear rack 9, and the tooth surface of the first gear rack 9 is engaged with the tooth surface of the first gear 72.

[0035] When the throttle line 83 pulls the sliding plate 81 to move upward, the sleeve 84 and the return spring 82 are driven to move upward, the sleeve 84 moves upward to cooperate with the guide groove 87 and the guide rod 88 to drive the contact disc 85 to rotate, since the contact disc 85 is arranged in an elliptical structure and the wider side abuts against the second contact block 86 in the initial state, the second contact block 86 gradually shrinks inward under the abutment of the return spring 82 by gradually rotating, so that the top of the return spring 82 forms a space allowance, and the allowance of the space of the top of the return spring 82 is adjusted according to the compression degree of the return spring 82, thereby reducing the fatigue loss.

[0036] As one of the embodiments of the present application, the right side of the fourth gear 77 is fixedly connected with a ratchet wheel 11 on the surface of the second transmission shaft 73, the right side of the fourth gear 77 is connected with a pawl 12 through a torsional spring by rotating the tooth surface of the ratchet wheel 11, and the electromagnet 13 is installed at the back end of the pawl 12.

[0037] When the second transmission shaft 73 moves, the electromagnet 13 starts to adsorb the pawl 12, so that the pawl 12 is separated from the tooth surface of the ratchet wheel 11, at this time the fourth gear 77 can rotate freely, avoiding being stuck with the second gear rack 10, when the movement is completed, the electromagnet 13 is powered off, the pawl 12 is reset under the action of the torsional spring, and the rotation of the fourth gear 77 is limited.

[0038] Working principle: when using the carburetor intelligent control device, first, when in high altitude area, the throttle line 83 pulls the sliding plate 81 to move upward, the sliding plate 81 moves upward to drive the first rack 9 to move upward, the first rack 9 moves upward to drive the first gear 72 to rotate, the first gear 72 rotates to drive the second gear 75 to rotate, the second gear 75 rotates to drive the fourth gear 77 on the right side of the second transmission shaft 73 to rotate, the fourth gear 77 rotates to drive the second rack 10 meshed with it to move upward, the second rack 10 moves upward to drive the plunger 5 to move upward, the plunger 5 moves upward to drive the oil needle 6 to move upward, so that its position in the main jet 3 is raised, the main jet 3 is communicated with the inside of the carburetor body 1, and oil is supplied to the internal combustion engine under the action of negative pressure. Since the number of teeth of the second gear 75 is similar to that of the first gear 72, the transmission ratio is small, the rising distance of the plunger 5 and the oil needle 6 is reduced under the premise of the same throttle (the same throttle opening), the oil amount entering the carburetor is reduced, and the lower oxygen content in the high altitude area is matched to avoid the mixture being too thick when entering the internal combustion engine.

[0039] When entering the plain from the high altitude area, the oxygen content in the air increases, in order to avoid the mixture being too thin, the electric push rod is started to drive the connecting block 781 to move left, the connecting block 781 drives the second gear 75 and the third gear 76 to move along the sliding groove on the second transmission shaft 73 through the connecting rod, until the third gear 76 moves to the lower side of the first gear 72, while the connecting block 781 moves left, the first piston rod 783 moves left in the first oil tank 782, extruding the oil in the first oil tank 782, and entering the second oil tank 784 through the oil delivery hose, driving the second piston rod 785 to move right, the second piston rod 785 drives the first abutting block 786 to move right, under the action of the inclined surface of the first abutting block 786, the push rod 787 is pushed to move upward, and then the moving block 74 is pushed to move upward, the moving block 74 drives the second transmission shaft 73 to move upward, and finally the third gear 76 is engaged with the first gear 72, the electromagnet 13 is started to adsorb the pawl 12 when the second transmission shaft 73 moves, so that it is separated from the tooth surface of the ratchet wheel 11, at this time the fourth gear 77 can rotate freely to avoid being stuck with the second rack 10, when the movement is finished, the electromagnet 13 is de-energized, the pawl 12 is reset under the action of the torsional spring, and the rotation of the fourth gear 77 is limited. Since the number of teeth of the third gear 76 is small, the transmission ratio is large, the rising distance of the plunger 5 and the oil needle 6 is increased under the premise of the same throttle (the same throttle opening), the oil amount entering the carburetor is increased, and the higher oxygen content in the plain area is matched to avoid the mixture being too thin when entering the internal combustion engine.

[0040] When the accelerator line 83 pulls the sliding plate 81 to move upward, the sleeve 84 and the reset spring 82 are pulled to move upward, the sleeve 84 is matched with the guide groove 87 and the guide rod 88 to drive the abutting disc 85 to rotate, since the abutting disc 85 is an elliptical structure, and the initial state is that the wider side abuts the second abutting block 86, gradually rotating makes the second abutting block 86 gradually shrink inward under the abutting of the reset spring 82, so that the top of the reset spring 82 forms a space allowance, realizing the adjustment of the allowance of the space of the top of the reset spring 82 according to the compression degree of the reset spring 82, reducing the fatigue loss, and increasing the service life of the reset spring 82.

[0041] Although the present application has been described in detail with reference to the foregoing embodiments, technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by equivalent ones by those skilled in the art, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A carburetor intelligent control device, comprising a carburetor body (1), characterized in that: The carburetor body (1) has a float chamber (2) installed at the bottom. The float chamber (2) has a main nozzle (3) installed in the middle area. The main nozzle (3) is connected to the inside of the carburetor body (1). The top of the carburetor body (1) is fixedly connected to a device housing (4). The top of the carburetor body (1) has a plunger (5) that is limited and slidable. The bottom of the plunger (5) has a needle valve (6) that extends into the inside of the main nozzle (3). The device housing (4) has a transmission adjustment mechanism installed inside. The top of the device housing (4) has a limit component installed. The transmission adjustment mechanism includes a first transmission shaft (71) rotatably connected to the inner walls of both ends of the device housing (4). A first gear (72) is sleeved on the left end surface of the first transmission shaft (71). A second transmission shaft (73) is provided below the first transmission shaft (71). Movable blocks (74) are rotatably connected to both ends of the second transmission shaft (73). The end of the movable block (74) away from the second transmission shaft (73) slides in a groove opened in the inner wall of the device housing (4). A second gear (75) and a third gear (76) are sleeved on the left end surface of the second transmission shaft (73). A fourth gear (77) is rotatably connected to the left end surface of the second transmission shaft (73). The tooth surface of the second gear (75) meshes with the tooth surface of the first gear (72). An adjustment component is installed inside the second transmission shaft (73). The adjustment assembly includes a connecting block (781) that limits sliding inside the second transmission shaft (73). The two ends of the connecting block (781) are connected to the inner walls of the second gear (75) and the third gear (76) through connecting rods. The second gear (75) has several more teeth than the third gear (76).

2. The intelligent control device for a carburetor according to claim 1, characterized in that: The connecting rod is limited to slide within a groove on the surface of the second drive shaft (73). The right end of the second drive shaft (73) is fixedly connected to a first oil tank (782). An electric push rod is fixedly connected to the top of the first oil tank (782). A first piston rod (783) is limited to slide inside the first oil tank (782). The output ends of the first piston rod (783) and the electric push rod are connected to the right end of the connecting block (781). The right side of the device housing (4) is fixedly connected to a second oil tank (784) on the surface of the carburetor body (1). A second piston rod (785) is limited to slide inside the second oil tank (784). The output end of the second piston rod (785) extends into the device housing (4) and is fixedly connected to a first abutment block (786). A push rod (787) is provided above the first abutment block (786). The end of the push rod (787) away from the first abutment block (786) is fixedly connected to one side of the moving block (74).

3. The intelligent control device for a carburetor according to claim 1, characterized in that: The limiting assembly includes a sliding plate (81) disposed above the first drive shaft (71). Both ends of the sliding plate (81) are limited to sliding within grooves opened on the inner wall of the device housing (4). Return springs (82) are fixedly connected to both ends of the top of the sliding plate (81). A throttle cable (83) is fixedly connected between the top of the sliding plate (81) and the return springs (82). A sleeve (84) is fitted onto the throttle cable (83). The bottom of the sleeve (84) is fixedly connected to the top of the sliding plate (81). 84) A contact plate (85) is sleeved on the outer surface of the top end. A second contact block (86) is provided around the contact plate (85). The second contact block (86) is located in the top cavity of the device housing (4) and is laterally limited and slidable. The top of the reset spring (82) extends into the top cavity of the device housing (4) and abuts against the second contact block (86). A guide groove (87) is provided on the outer surface of the sleeve (84). A guide rod (88) is fixedly connected in the contact plate (85) at the position corresponding to the guide groove (87).

4. The intelligent control device for a carburetor according to claim 3, characterized in that: The bottom of the sliding plate (81) is fixedly connected to a first rack (9), the tooth surface of the first rack (9) meshes with the tooth surface of the first gear (72), and the top of the plunger (5) is fixedly connected to a second rack (10), the tooth surface of the second rack (10) meshes with the tooth surface of the fourth gear (77).

5. The intelligent control device for a carburetor according to claim 1, characterized in that: A ratchet (11) is fixedly connected to the right side of the fourth gear (77) on the surface of the second transmission shaft (73). A pawl (12) is rotatably connected to the right side of the fourth gear (77) corresponding to the tooth surface of the ratchet (11) via a torsion spring. An electromagnet (13) is installed on the back end of the pawl (12) on the right side of the fourth gear (77).

6. The intelligent control device for a carburetor according to claim 2, characterized in that: The contact surface of the first contact block (786) is configured as a slope structure.

7. The intelligent control device for a carburetor according to claim 2, characterized in that: The oil chamber on the left side of the first oil tank (782) is connected to the oil chamber on the left side of the second oil tank (784) via an oil delivery hose, and a telescopic spring is sleeved on the surface of the second piston rod (785).

8. The intelligent control device for a carburetor according to claim 3, characterized in that: The guide groove (87) is formed into a spiral structure along the outer surface of the sleeve (84), and the guide rod (88) is located in the guide groove (87) for limited sliding.

9. The intelligent control device for a carburetor according to claim 3, characterized in that: The contact plate (85) is configured as an elliptical structure, and the contact surface of the second contact block (86) is configured as an inclined structure.

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