Starting control device of engine starter

Abstract

The invention relates to the technical field of engine starters, in particular to a starting control device of an engine starter, which comprises a shell, a starting wheel, a rewinding spring, a pull rope, a driving shaft, a one-way clutch, a limiting mechanism and a flywheel, the starting wheel is arranged in the shell, the pull rope is arranged in the starting wheel, the driving shaft is arranged on the starting wheel, and the one-way clutch is arranged on the flywheel. The one-way clutch is installed at the other end of the driving shaft, the limiting mechanism is installed in the one-way clutch, the flywheel is installed at the output end of the one-way clutch, the unwinding speed and the winding speed of a rope during rope pulling and rope unwinding are changed by limiting when the coil spring contracts and expands, and then normal work of the starter is achieved. And the working efficiency of the engine starter is improved.

Description

Technical Field

[0001] The invention relates to the technical field of engine starters, in particular to a starting control device for an engine starter. Background Art

[0002] The engine start control device is the core component of the starting system, responsible for coordinating the conversion of electrical energy or kinetic energy into mechanical energy and ensuring the transition of the engine from a stationary state to automatic operation. Existing engine starters include hand starters, manual starters and electric starters. The manual starter has flexible torque control, but requires multiple turns of rotation and has low efficiency during cold starts. Although the electric starter is convenient, it requires electricity as the starting source, and the environment will affect the performance of the battery, causing the starter to fail. Therefore, when using small generators or chainsaws in remote areas, hand starters are still the dominant method.

[0003] During the use of the hand starter, when the pull rope is pulled, the ratchet on the one-way clutch needs to contact the flywheel first, and then the one-way clutch drives the flywheel to rotate, thereby forming the initial power. However, the ratchet is not in contact with the flywheel at the beginning, so the pull rope needs a larger force to drive the one-way clutch in the initial state, thereby giving the one-way clutch a larger speed to drive the flywheel. On the one hand, if the stretching speed is uneven, the rotation speed of the one-way clutch will change, and the speed transmitted to the flywheel will not be able to reach the normal working speed of the engine crankshaft, thereby affecting the working efficiency of the engine; on the other hand, after the crankshaft reaches the normal working speed of the engine, the ratchet of the one-way clutch is disengaged from the flywheel, and the pull rope needs to be loosened to stop the starting device. However, due to the inertia of the winding spring, the pull rope resets too fast, thereby causing damage to the handle of the pull rope, and also affecting the normal operation of the starter.

[0004] Based on this, in order to solve the problem of how to avoid unstable changes in the rope pulling speed caused by the unstable contraction of the coil spring during the rope pulling process, thereby affecting the normal operation of the engine, the present invention designs a starting control device for an engine starter. Summary of the invention

[0005] A starting control device for an engine starter provided by the present invention solves the problem that the unstable contraction of a coil spring causes unstable changes in the speed of a rope pull, thereby affecting the normal operation of the engine. By limiting the contraction and expansion of the coil spring, the unwinding and winding speeds of the rope when the rope is pulled and released are changed, thereby achieving the normal operation of the starter and improving the working efficiency of the engine starter.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a starting control device for an engine starter, comprising a housing, a starting wheel, a rewinding spring, a pull rope, a driving shaft, a one-way clutch, a limiting mechanism, and a flywheel, wherein the starting wheel is mounted on the housing, the starting wheel is mounted in the housing, the pull rope is mounted in the starting wheel, the driving shaft is mounted on the starting wheel, the one-way clutch is mounted on the other end of the driving shaft, the limiting mechanism is mounted inside the one-way clutch, and the flywheel is mounted on the output end of the one-way clutch. When the pull rope is pulled, the limiting mechanism drives the rewinding spring to first increase in diameter and then decrease in diameter, and when the pull rope is pulled, the limiting mechanism drives the one-way clutch to start quickly; the one-way clutch is used to drive the flywheel to rotate on the one hand, and on the other hand, it can prevent the engine from recoil-driving the pull rope through the characteristics of one-way transmission, thereby preventing the handle from rebounding at high speed and injuring people.

[0008] Preferably, the limiting mechanism includes a gear ring, a base plate, a limiting groove, a limiting rod, a slider, a clamping column, a driving gear, a rack, a fixed magnet, and an adsorption magnet. The gear ring is installed on the starting wheel, the base plate is installed on the inner side of the gear ring, the limiting groove is opened on the gear ring, the limiting rod is slidably connected in the limiting groove, the two ends of the slider are respectively installed on the base plate and the gear ring, the clamping column is installed on the limiting rod, the driving gear is connected to the gear ring, the rack is meshed with the driving gear, the fixed magnet is installed on the back of the rack, and the adsorption magnet is installed on the pull rope.

[0009] Preferably, the one-way clutch includes a chassis, a return spring, and a ratchet. The chassis is installed on the drive shaft, one end of the return spring is installed on the chassis, and the ratchet is installed on the other end of the return spring. A connecting groove is provided on the chassis, and a push rod is installed between the ratchet and the clamping column. The push rod is connected to the clamping column, and the push rod is in contact with the ratchet when the return spring is not stretched. After the fixed magnet on the rack is separated from the adsorption magnet, the gear ring is reset by the action of the rewind spring, thereby slowing down the elastic speed of the rewind spring, thereby playing a buffering role when the pull rope is reset, thereby reducing the recoil force of the rewind spring on the pull rope and improving safety.

[0010] Preferably, a handle is installed at the end of the pull rope, and the magnetism of the adsorption magnet gradually becomes stronger from the handle to the center of the rewinding spring; as the magnetism changes, the adsorption force of the two also changes.

[0011] Preferably, there are eight clamping columns distributed in a ring array, and a horizontal plane is provided on the clamping column, which can accommodate the rewinding spring and limit the outer ring of the rewinding spring so that it will not be offset due to pulling, and can limit the rewinding spring when it is reset.

[0012] Preferably, a limit block is installed on the rewinding spring, and a compression spring is installed between the limit block and the rewinding spring; the buffering effect of the compression spring is utilized to offset a part of the contraction force of the resetting rewinding spring.

[0013] Preferably, the limit block is provided with a smooth surface and a locking surface, the smooth surface faces the handle side, and the locking surface faces the center side of the rewind spring; when the rewind spring contracts, the locking surface contacts the horizontal surface on the clamping column, thereby forming a locking deceleration.

[0014] Preferably, a V-shaped folding plate is installed on the limit block, and the folding plate is installed on one side of the engaging surface to change the movement trajectory of the rewinding spring when it is reset, thereby further buffering the rewinding spring.

[0015] Preferably, a sleeve is installed on the flywheel, and a centrifugal block is installed in the sleeve to increase the inertial force of the flywheel and avoid recoil.

[0016] Preferably, an annular array is provided on the starting wheel with air inlets, a baffle is provided at the non-pull rope connection portion of the air inlet, and a traction rope connected to the baffle is installed at the end of the centrifugal block, thereby improving the heat dissipation efficiency of the motor.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A starting control device for an engine starter proposed by the present invention, during the initial pulling of the pull rope, the driving shaft in the starting wheel gradually accelerates under the action of the pull rope, thereby driving the one-way clutch to rotate, and the ratchet in the one-way clutch gradually fits with the outer ring on the flywheel, thereby driving the flywheel to rotate, and the rack will drive the driving gear to rotate under the action of the pull rope, and the driving gear will synchronously drive the gear ring to rotate when rotating, and the gear ring drives the limit rod on the bottom plate to slide in the limit groove, thereby driving the clamping column to move outward, thereby realizing the expansion of the outer ring of the rewind spring, and when the adsorption magnet passes the fixed magnet, it drives the rack and the gear to reset, and in this process, the rewind spring expands outward and then contracts inward, so that the rewind spring stretches to first speed up and then slow down, thereby avoiding excessive recoil effect on the pull rope and the handle, thereby affecting the normal operation of the starter.

[0019] 2. The present invention proposes a starting control device for an engine starter. When the driving shaft drives the chassis to rotate, the ratchet is thrown outward by the gradually increasing speed and centrifugal force, and then gradually contacts the flywheel. When the two are in contact, the ratchet drives the flywheel to rotate, gradually speeding up the flywheel, and the flywheel transmits the speed to the crankshaft, thereby starting the first piston, thereby starting the engine. The reset spring is used to drive the ratchet to reset when the speed of the driving shaft slows down, so that the ratchet is disengaged from the flywheel, and the power of the engine driving the crankshaft will not recoil to the driving shaft through the one-way clutch, thereby causing the recoil of the take-up spring and the starting wheel, thereby forming a protection for the starting device.

[0020] 3. The present invention proposes a starting control device for an engine starter. The horizontal surface on the clamping column can, on the one hand, accommodate the rewinding spring and limit the outer ring of the rewinding spring so that it will not be offset due to pulling. On the other hand, it can limit the rewinding spring when it is reset. The limit block can further reduce the speed when resetting. When resetting, the compression spring on the limit block is squeezed by the horizontal surface and shrinks inward. The buffering effect of the compression spring is used to offset a part of the shrinkage force of the resetting rewinding spring. At the same time, the limit block directly reduces the resetting speed of the rewinding spring, thereby improving the safety and stability of the pull rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation mode of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation mode or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are one implementation mode of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the starter wheel of the present invention;

[0024] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 It is a structural schematic diagram of the rack of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the limit rod of the present invention;

[0028] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0029] Figure 8 It is a schematic diagram of the limit block of the present invention.

[0030] In the figure: 1. shell; 11. air inlet; 12. baffle; 2. starting wheel; 3. rewind spring; 4. pull rope; 41. handle; 42. limit block; 421. smooth surface; 422. engaging surface; 423. folding plate; 43. compression spring; 5. driving shaft; 6. one-way clutch; 61. chassis; 611. connecting groove; 62. return spring; 63. ratchet; 64. push rod; 7. limit mechanism; 71. gear ring; 72. bottom plate; 73. limit groove; 74. limit rod; 75. slider; 76. clamping column; 761. horizontal plane; 77. driving gear; 78. rack; 79. fixed magnet; 710. adsorption magnet; 8. flywheel; 81. sleeve; 82. centrifugal block. DETAILED DESCRIPTION

[0031] In order to better understand the above solution, the above technical solution is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1-2 As shown, a starting control device for an engine starter provided by the present invention comprises a housing 1, a starting wheel 2, a rewinding spring 3, a pull rope 4, a driving shaft 5, a one-way clutch 6, a limiting mechanism 7, and a flywheel 8. The starting wheel 2 is mounted on the housing 1, and a notch for placing the pull rope 4 is provided on the starting wheel 2. The starting wheel 2 is tangent to the rope opening on the housing 1. The pull rope 4 is mounted in the starting wheel 2, and the driving shaft 5 is mounted on the starting wheel 2. The driving shaft 5 connects the starting wheel 2 and the one-way clutch 6 to ensure that the pull rope 4 can pass through the rewinding spring 3 when the starting wheel 2 is pulled. To drive the starter wheel 2 to rotate, the rewinding spring 3 and the other end of the pull rope 4 can be connected, that is, the tension acts directly on the rewinding spring 3, or they can be disconnected. When disconnected, the rewinding spring 3 is used as an energy storage device (the figure shows the situation where the two are connected, and the pull rope 4 will drive the middle drive shaft 5 to rotate). The one-way clutch 6 is installed at the other end of the drive shaft 5. The one-way clutch 6 is used to drive the flywheel 8 to rotate on the one hand, and on the other hand, it can prevent the engine from recoil-driving the pull rope 4 through the one-way transmission characteristics, thereby preventing the handle from rebounding at high speed and injuring people;

[0033] The limiting mechanism 7 is installed inside the one-way clutch 6, and the flywheel 8 is installed at the output end of the one-way clutch 6. When the pull rope 4 is pulled, the limiting mechanism 7 drives the diameter of the rewinding spring 3 to first increase and then decrease. When the pull rope 4 is pulled, the limiting mechanism 7 drives the one-way clutch 6 to start quickly.

[0034] When the pull rope 4 is pulled, the pull rope 4 will drive the starting wheel 2 to rotate, and the starting wheel 2 will drive the rewinding spring 3 to compress. The rewinding spring 3 is connected to the bottom plate 72 in the limiting mechanism 7, and the bottom plate 72 passes through the gear ring 71 and is connected to the outer shell 1 of the starting wheel 2, thereby ensuring that the rewinding spring 3 can be relatively compressed. During the compression of the rewinding spring 3, due to the existence of the limiting mechanism 7, the pull rope 4 will drive the limiting mechanism 7 to do work on the outer ring of the rewinding spring 3 while driving the internal rotation of the starting wheel 2, thereby causing the outer ring of the rewinding spring 3 to expand toward the periphery, thereby changing The contraction speed of the rewind spring 3 is reduced, so that when the pull rope 4 is pulled, the rewind spring 3 can change the moving speed of the rewind spring 3 while expanding, thereby changing the speed of the pull rope 4. During the initial pulling process of the pull rope 4, the driving shaft 5 in the starting wheel 2 gradually accelerates under the action of the pull rope 4, thereby driving the one-way clutch 6 to rotate, and the ratchet in the one-way clutch 6 gradually fits with the outer ring on the flywheel 8, thereby driving the flywheel 8 to rotate. When the adsorption magnet 710 of the pull rope 4 drives the fixed magnet 79 on the rack 78, the rack 78 will be affected by the pull rope 4. The gear ring 71 drives the limiting rod 74 on the bottom plate 72 to slide in the limiting groove 73, and then the slider 75 changes its position, thereby driving the limiting rod 74 to move from the inner ring to the outer ring of the gear ring 71, and then driving the clamping column 76 to move outward, thereby expanding the outer ring of the rewinding spring 3. However, when the adsorption magnet 710 passes over the fixed magnet 79 (the rack 78 to which the fixed magnet 79 is attached is blocked and will not continue to move forward), the torsion spring 71 is automatically The retractability of the body will drive the clamping column 76 to gather towards the center, thereby driving the rack 78 and the driving gear 77 to reset, and in this process, the rewind spring 3 expands outward and then contracts inward, so that the rewind spring 3 stretches to first speed up and then slow down. When the pull rope 4 is just started, the acceleration can allow the driving shaft 5 in the starting wheel 2 to quickly reach the threshold for starting the engine, and as the speed gradually increases, the rewind spring 3 slows down to avoid excessive speed causing excessive rear inertia, thereby avoiding excessive recoil between the pull rope 4 and the handle 41, which in turn affects the normal operation of the starter.

[0035] like Figure 2-7As shown, the limiting mechanism 7 includes a gear ring 71, a bottom plate 72, a limiting groove 73, a limiting rod 74, a slider 75, a clamping column 76, a driving gear 77, a rack 78, a fixed magnet 79, and an adsorption magnet 710. The gear ring 71 is installed on the starting wheel 2, the bottom plate 72 is installed on the inner side of the gear ring 71, the limiting groove 73 is opened on the gear ring 71, the limiting rod 74 is slidably connected in the limiting groove 73, the two ends of the slider 75 are respectively installed on the bottom plate 72 and the gear ring 71, the clamping column 76 is installed on the limiting rod 74, the driving gear 77 is connected to the gear ring 71, the rack 78 is meshed with the driving gear 77, the fixed magnet 79 is installed on the back of the rack 78, and the adsorption magnet 710 is installed on the pull rope 4.

[0036] On the basis of the base plate 72 being fixed, an adsorption magnet 710 is installed on the pull rope 4 at this time. The adsorption magnet 710 will drive the fixed magnet 79 to move, and the fixed magnet 79 is installed on the back of the rack 78. In the initial movement of the pull rope 4, the pull rope 4 will drive the rack 78 to rotate the driving gear 77, and the driving gear 77 will drive the gear ring 71 to rotate. There can be multiple driving methods here, one of which is a connection method. At this time, the diameter of the driving gear 77 should be kept slightly larger, or the distance moved by the rack 78 should be smaller, so as to ensure that the rack 78 will not drive the driving gear 77 to rotate too much. Another method is through tooth meshing, so that the gear ring 71 is driven to rotate through the driving gear 77. In this process, the driven wheel can be increased to meet the transmission ratio required for the work.

[0037] When the gear ring 71 rotates, it will drive the slider 75 to move. The gear ring 71 and the slider 75 are rotationally connected, and the limit rod 74 and the slider 75 are also rotationally connected. Then, when the gear ring 71 rotates relative to the base plate 72, the size of the slider 75 does not change, so the slider 75 moves relatively, and the limit rod 74 will slide along the limit groove 73 toward the periphery, thereby driving the clamping column 76 to move toward the outer ring, thereby expanding the outer ring of the rewind spring 3, thereby reducing the force required to pull the pull rope 4. After the fixed magnet 79 on the rack 78 is separated from the adsorption magnet 710, the gear ring 71 is reset under the action of the rewind spring 3, thereby driving the elastic speed of the rewind spring 3 to slow down, so that it can play a buffering role when the pull rope 4 is reset, thereby reducing the recoil force of the rewind spring 3 on the pull rope 4 and improving safety.

[0038] The end of the pull rope 4 is provided with a handle 41, and the magnetism of the adsorption magnet 710 gradually increases from the handle 41 to the center of the rewind spring 3. As the magnetism changes, the adsorption force of the two also changes;

[0039] The rack 78 here is an L-shaped rack 78, and the top bending part of the rack 78 is in contact with the stretching bottom. Initially, the fixed magnet 79 is in contact with the adsorption magnet 710, and after the two are misaligned, the pull rope 4 is in contact with the fixed magnet 79, and then the fixed magnet 79 can smooth the pull rope 4, thereby pulling the edge of the pull rope 4; on the other hand, when the adsorption magnet 710 is not in contact with the fixed magnet 79, the adsorption magnet 710 is pulled by the fixed magnet 79, and the pull rope 4 moves outward more smoothly; and when the adsorption magnet 710 passes over the fixed magnet 79, the fixed magnet 79 will have an attraction for the adsorption magnet 710, thereby reducing the speed at which the pull rope 4 is stretched outward; and when the pull rope 4 is reset, the pull rope 4 is initially attracted by the fixed magnet 79 and the adsorption magnet 710, and the reset speed is fast, and after passing, the speed is reduced, thereby improving the stability and safety of the starter.

[0040] The one-way clutch 6 comprises a chassis 61, a return spring 62, and a ratchet 63. The chassis 61 is mounted on the drive shaft 5, one end of the return spring 62 is mounted on the chassis 61, and the ratchet 63 is mounted on the other end of the return spring 62. A connecting groove 611 is provided on the chassis 61. A push rod 64 is installed between the ratchet 63 and the clamping column 76. The push rod 64 is connected to the clamping column 76. When the return spring 62 is not stretched, the push rod 64 contacts the ratchet 63. A groove is provided on the chassis 61. At this time, a push block is installed on the clamping column 76. When the clamping column 76 moves outward, the push block moves synchronously, thereby driving the ratchet 63 to extend outward. When the pull rope 4 is started, the ratchet 63 can quickly contact the flywheel 8, thereby reducing the time for starting the flywheel 8 and improving the working efficiency of the starter. When the clamping column 76 gathers toward the center, the push block also shrinks, thereby preventing the recoil phenomenon and improving the stability of the starter.

[0041] When the driving shaft 5 drives the chassis to rotate, the ratchet 63 is thrown outward by the centrifugal force of the gradually increasing speed, and then gradually contacts the flywheel 8. When the two are in contact, the ratchet 63 will drive the flywheel 8 to rotate, gradually speeding up the flywheel 8, and the flywheel 8 transmits the speed to the crankshaft, thereby starting the first piston, thereby starting the engine. The reset spring 62 is used to reset the ratchet 63 when the speed of the driving shaft 5 slows down, so that the ratchet 63 is disengaged from the flywheel 8, and the power of the engine to drive the crankshaft will not rebound to the driving shaft 5 through the one-way clutch 6, thereby causing the recoil of the rewinding spring 3 and the starting wheel 2, thereby forming a protection for the starting device.

[0042] There are eight clamping columns 76 , which are distributed in a ring array. A horizontal surface 761 is provided on the clamping columns 76 .

[0043] On the one hand, the horizontal surface 761 on the clamping column 76 can accommodate the rewind spring 3 and limit the outer ring of the rewind spring 3, so that it will not be offset due to pulling. On the other hand, it can limit the rewind spring 3 when it is reset. When the rewind spring 3 is stretched outward, it expands outward and will not fit the horizontal surface 761. However, when the rewind spring 3 contracts, it contracts inward and contacts with the horizontal surface 761, thereby slowing down the contraction of the rewind spring 3 to a certain extent, preventing the rewind spring 3 from contracting too quickly, thereby causing damage to the reset of the pull rope 4.

[0044] like Figure 7-8 As shown, a limit block 42 is installed on the rewinding spring 3 , and a compression spring 43 is installed between the limit block 42 and the rewinding spring 3 .

[0045] The limit block 42 can further reduce the speed during resetting. During resetting, the compression spring 43 on the limit block 42 is squeezed by the horizontal plane 761 and shrinks inward. The buffering effect of the compression spring 43 offsets part of the shrinkage force of the resetting rewinding spring 3. At the same time, the limit block 42 directly reduces the resetting speed of the rewinding spring 3, thereby improving the safety and stability of the pull rope 4.

[0046] The limiting block 42 is provided with a smooth surface 421 and a locking surface 422 , wherein the smooth surface 421 faces the handle 41 , and the locking surface 422 faces the center of the rewinding spring 3 .

[0047] The slope of the smooth surface 421 is smaller than the slope of the engaging surface 422. Therefore, when the rewind spring 3 is stretched outward, the smooth surface 421 contacts the clamping column 76, and no large resistance is caused, thereby reducing the pulling force of the human hand. When the rewind spring 3 contracts, the engaging surface 422 contacts the horizontal surface 761 on the clamping column 76, thereby forming an engaging deceleration, thereby realizing rapid expansion and slow contraction of the rewind spring 3, thereby improving the safety and stability of the rewind spring 3 through the speed difference.

[0048] A V-shaped folding plate 423 is installed on the limiting block 42 , and the folding plate 423 is installed on one side of the engaging surface 422 .

[0049] When squeezing the engaging surface 422, the V-shaped folded plate 423 is used, so that the rewinding spring 3 squeezes the V-shaped folded plate 423 when passing through the engaging surface 422, thereby squeezing the internal compression spring 43, and the V-shaped folded plate 423 is deformed. When the compression spring 43 is reset, the V-shaped folded plate 423 will rebound, thereby having a reaction effect on the rewinding spring 3, thereby changing the moving trajectory of the rewinding spring 3 when it is reset, and further buffering the reset of the rewinding spring 3.

[0050] The flywheel 8 is provided with a sleeve 81, and a centrifugal block 82 is installed in the sleeve 81. The starter wheel 2 is provided with an annular array of air inlets 11, and a baffle 12 is provided at the non-pull rope 4 connection of the air inlet 11, and a traction rope connected to the baffle 12 is installed at the end of the centrifugal block 82.

[0051] As the flywheel 8 rotates, the centrifugal block 82 on the flywheel 8 moves from the sleeve 81 near the center position to the edge of the flywheel 8, thereby gradually increasing the centrifugal force of the flywheel 8 and giving the flywheel 8 inertia, so that when the one-way clutch 6 is disengaged, the flywheel 8 will not be subjected to a sudden speed change, thereby causing the crankshaft to recoil, thereby improving the stability of the starter. When the flywheel 8 rotates, the engine is started at this time, and the engine is cooled by setting the air inlet 11. Compared with the prior art, the stability and working efficiency of the engine are improved; by setting the baffle 12, the inside of the starter wheel 2 can be protected when the engine is not started to prevent dust and the like from entering the inside. After the engine is started, the traction rope connected to the end of the centrifugal block 82 near the center of the flywheel 8 directly drives the baffle 12 to move to the edge, thereby expanding the air inlet 11 to achieve heat dissipation of the engine crankshaft.

[0052] When it is necessary to start the engine through the hand-pull starter, the staff holds the handle 41 and drives the pull rope 4 to move through the handle 41. The pull rope 4 drives the drive shaft 5 to rotate, and the pull rope 4 pulls the rewinding spring 3. During the initial pulling of the pull rope 4, the drive shaft 5 in the starting wheel 2 gradually accelerates under the action of the pull rope 4, thereby driving the one-way clutch 6 to rotate. The ratchet in the one-way clutch 6 gradually fits with the outer ring on the flywheel 8, thereby driving the flywheel 8 to rotate. When the adsorption magnet 710 of the pull rope 4 drives the fixed magnet 79 on the rack 78, the rack 78 will move forward under the action of the pull rope 4, thereby driving the drive gear 77 to rotate. When the drive gear 77 rotates, it simultaneously drives the gear ring 71 to rotate. When the gear ring 71 rotates, it drives the slider 75 to move. The gear ring 71 is rotationally connected to the slider 75, and the limit rod 74 is also rotationally connected to the slider 75. Then, when the gear ring 71 rotates relative to the bottom plate 72, the size of the slider 75 will not change, so the slider 75 moves relatively. The stop rod 74 will slide along the stop groove 73 toward the periphery, and then drive the clamping column 76 to move toward the outer circle, thereby expanding the outer circle of the rewinding spring 3, thereby reducing the force required to pull the pull rope 4, thereby achieving the expansion of the outer circle of the rewinding spring 3; when the adsorption magnet 710 passes over the fixed magnet 79; it will drive the clamping column 76 to gather toward the center, thereby driving the rack 78 and the gear to reset; after the two are misaligned, the pull rope 4 is in contact with the fixed magnet 79, and then the fixed magnet 79 can smooth the pull rope 4, so that The edge pull rope 4 is pulled; when the adsorption magnet 710 is not in contact with the fixed magnet 79, the adsorption magnet 710 is pulled by the fixed magnet 79, and the pull rope 4 moves outward more smoothly; when the adsorption magnet 710 passes over the fixed magnet 79, the fixed magnet 79 has an attraction to the adsorption magnet 710, thereby reducing the speed at which the pull rope 4 is stretched outward; when the pull rope 4 is reset, the initial state stretching is affected by the mutual attraction between the fixed magnet 79 and the adsorption magnet 710, and the reset speed is fast, and after passing, the speed is reduced.

[0053] The basic principles and beneficial effects of the present invention are shown and described above. At the same time, the present invention is not limited to the above embodiments. Without departing from the effects and scope of the present invention, the present invention may have various changes and improvements. These changes and improvements all 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. A starting control device for an engine starter, characterized in that: The invention comprises a housing (1), a starting wheel (2), a rewinding spring (3), a pull rope (4), a driving shaft (5), a one-way clutch (6), a limiting mechanism (7), and a flywheel (8), wherein the starting wheel (2) is mounted in the housing (1), the pull rope (4) is mounted in the starting wheel (2), the driving shaft (5) is mounted on the starting wheel (2), the one-way clutch (6) is mounted at the other end of the driving shaft (5), the limiting mechanism (7) is mounted inside the one-way clutch (6), and the flywheel (8) is mounted at the output end of the one-way clutch (6). When the pull rope (4) is pulled, the limiting mechanism (7) drives the rewinding spring (3) to first increase in diameter and then decrease in diameter. When the pull rope (4) is pulled, the limiting mechanism (7) drives the one-way clutch (6) to start quickly.

2. The starting control device for an engine starter according to claim 1, characterized in that: The limiting mechanism (7) comprises a gear ring (71), a bottom plate (72), a limiting groove (73), a limiting rod (74), a slider (75), a clamping column (76), a driving gear (77), a rack (78), a fixed magnet (79), and an adsorption magnet (710); the gear ring (71) is mounted on the starting wheel (2); the bottom plate (72) is mounted on the inner side of the gear ring (71); the limiting groove (73) is provided on the gear ring (71); The positioning rod (74) is slidably connected in the limiting groove (73), the two ends of the slider (75) are respectively mounted on the bottom plate (72) and the gear ring (71), the clamping column (76) is mounted on the limiting rod (74), the driving gear (77) is connected to the gear ring (71), the rack (78) is meshed with the driving gear (77), the fixed magnet (79) is mounted on the back of the rack (78), and the adsorption magnet (710) is mounted on the pull rope (4).

3. The starting control device of an engine starter according to claim 1, characterized in that: The one-way clutch (6) comprises a chassis (61), a return spring (62), and a ratchet (63); the chassis (61) is mounted on the drive shaft (5); one end of the return spring (62) is mounted on the chassis (61); the ratchet (63) is mounted on the other end of the return spring (62); a connecting groove (611) is provided on the chassis (61); a push rod (64) is installed between the ratchet (63) and the clamping column (76); the push rod (64) is connected to the clamping column (76); and when the return spring (62) is not stretched, the push rod (64) is in contact with the ratchet (63).

4. The starting control device for an engine starter according to claim 2, characterized in that: A handle (41) is installed at the end of the pull rope (4), and the magnetism of the adsorption magnet (710) gradually increases from the handle (41) toward the center of the rewinding spring (3).

5. The starting control device for an engine starter according to claim 3, characterized in that: The clamping columns (76) are provided with eight, the clamping columns (76) are distributed in a ring array, and a horizontal surface (761) is provided on the clamping columns (76).

6. The starting control device for an engine starter according to claim 4, characterized in that: A limit block (42) is installed on the rewinding spring (3), and a compression spring (43) is installed between the limit block (42) and the rewinding spring (3).

7. The starting control device for an engine starter according to claim 6, characterized in that: The limit block (42) is provided with a smooth surface (421) and a snap-fit ​​surface (422), wherein the smooth surface (421) faces the handle (41) and the snap-fit ​​surface (422) faces the center of the rewinding spring (3).

8. The starting control device for an engine starter according to claim 7, characterized in that: A V-shaped folding plate (423) is mounted on the limit block (42), and the folding plate (423) is mounted on one side of the engaging surface (422).

9. The starting control device for an engine starter according to claim 1, characterized in that: A sleeve (81) is installed on the flywheel (8), and a centrifugal block (82) is installed in the sleeve (81).

10. The starting control device of an engine starter according to claim 9, characterized in that: The starter wheel (2) is provided with air inlets (11) in a circular array, and a baffle (12) is provided at a portion of the air inlet (11) not connected to the pull rope (4), and a traction rope connected to the baffle (12) is installed at the end of the centrifugal block (82).

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