Starting device for gasoline engine

Abstract

The utility model provides a starting device for a gasoline engine, which relates to the technical field of gasoline engine starting and comprises a shell, a central shaft, a through hole, a small flat spring, a rope wheel, a pull rope, a recoil pusher dog, a deflector rod, a large flat spring box, a stainless steel flat spring, a one-way needle bearing, a starting wheel, a screw, a compression spring, a sleeve and a handle. According to the device, the large flat spring box made of the two driving levers and the plastic part is adopted, so that when the large flat spring box is driven by the two driving levers, the idle stroke is shorter than that of one driving lever, and the starting efficiency can be improved; when the large flat spring box is shifted by the two shifting rods, the stress is symmetrical, the abrasion of the contact position is reduced, and the service life of the starter is prolonged; the large flat spring box is made of a plastic piece, so that the product weight and the manufacturing cost can be reduced, and in conclusion, the service life of the starter is further prolonged, and the starting efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gasoline engine starting, in particular to a starting device for a gasoline engine. Background Art

[0002] The hand-operated starter is a mechanical starter, and the assembly is divided into two parts: the starter and the starter dial.

[0003] At present, the engine starting process is realized by a manual starter, and the existing manual starter includes a lever, which easily causes uneven force when the large flat spring box is moved, and then the contact position between the lever and the large flat spring box is severely worn and the idle stroke of the lever is long. In summary, the service life and starting efficiency of the starter need to be further improved. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a starting device for a gasoline engine.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A gasoline engine starting device includes a housing, a central shaft, a through hole, a small flat spring, a pulley, a pull rope, a recoil pusher dog, a pusher rod, a large flat spring box, a stainless steel flat spring, a one-way needle bearing, a starting wheel, a screw, a compression spring, a sleeve, and a handle.

[0007] A central shaft is provided in the shell and a through hole is provided on the shell. A small flat spring passes through the central shaft and contacts with the end of the central shaft. The outer side of the small flat spring is connected to the shell. The inner side of the small flat spring is connected to a pulley on the outer side and sleeved on the central shaft. A pull rope is wound on the pulley. One end of the pull rope is connected to the pulley. The other end of the pull rope passes through the through hole and the inside of the sleeve in sequence and is connected to the handle. Two levers matching with them are provided on the pulley. A recoil pusher dog sleeved on the central shaft and matching with them is provided on the outer side of the lever. A pressure puller is also sleeved on the central shaft. Compression spring, one end of the compression spring contacts the end of the center shaft, the other end of the compression spring contacts the recoil pusher dog, a large flat spring box is provided on the outside of the recoil pusher dog, which is sleeved on the center shaft and matched with the shift rod, a one-way needle roller bearing is provided in the center hole of the large flat spring box, and the one-way needle roller bearing is sleeved on the outside of the center shaft and matched with the center shaft, the stainless steel flat spring is in the large flat spring box and the outside of the stainless steel flat spring is connected to the large flat spring box, the inside of the stainless steel flat spring is connected to the starting wheel, and the starting wheel is fixed to the center shaft by screws in the center hole.

[0008] Furthermore, the screw is a hexagonal flange screw.

[0009] Furthermore, the one-way needle roller bearing adopts a hexagonal one-way needle roller bearing.

[0010] Furthermore, the large flat spring box is made of plastic material.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This device uses two levers and a large flat spring box made of plastic parts, which means:

[0013] 1. When two levers move the large flat spring box, the idle stroke will be shorter than that of one lever, which is beneficial to improve starting efficiency;

[0014] 2. When the two levers move the large flat spring box, the forces are symmetrical, which reduces the wear of the contact position and helps to increase the service life of the starter;

[0015] 3. Changing the large flat spring box to a plastic part can reduce product weight and manufacturing costs.

[0016] In summary, the service life and starting efficiency of the starter are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of the three-dimensional diagram of the present invention;

[0018] Figure 2 It is a three-dimensional diagram of the utility model;

[0019] Reference numerals:

[0020] 1. Housing; 101. Center shaft; 102. Through hole; 2. Small flat spring; 3. Pulley; 4. Pull rope; 5. Recoil pawl; 6. Lever; 7. Large flat spring box; 8. Stainless steel flat spring; 9. One-way needle bearing; 10. Starting wheel; 11. Screw; 12. Dial; 13. Compression spring; 14. Sleeve; 15. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0022] like Figure 1 and Figure 2As shown, a gasoline engine starting device includes a housing 1, a central shaft 101, a through hole 102, a small flat spring 2, a pulley 3, a pull rope 4, a recoil pusher dog 5, a push rod 6, a large flat spring box 7, a stainless steel flat spring 8, a one-way needle bearing 9, a starting wheel 10, a screw 11, a compression spring 13, a sleeve 14 and a handle 15.

[0023] A central shaft 101 is provided in the housing 1 and a through hole 102 is provided on the housing 1. A small flat spring 2 passes through the central shaft 101 and contacts the end of the central shaft 101. The outer side of the small flat spring 2 is connected to the housing 1. The inner side of the small flat spring 2 is connected to a pulley 3 on its outer side and sleeved on the central shaft 101. A pull rope 4 is wound around the pulley 3. One end of the pull rope 4 is connected to the pulley 3. The other end of the pull rope 4 passes through the through hole 102 and the inside of the sleeve 14 in sequence and is connected to the handle 15. Two levers 6 are provided on the pulley 3 to match them. A recoil pusher dog 5 is provided on the outer side of the lever 6 to match them. The central shaft 101 is also sleeved with a There is a compression spring 13, one end of the compression spring 13 is in contact with the end of the center shaft 101, and the other end of the compression spring 13 is in contact with the recoil finger 5. The outside of the recoil finger 5 is provided with a large flat spring box 7 which is sleeved on the center shaft 101 and cooperates with the lever 6. A one-way needle bearing 9 is provided in the center hole of the large flat spring box 7 and the one-way needle bearing 9 is sleeved on the outside of the center shaft 101 and cooperates with the center shaft 101. The stainless steel flat spring 8 is in the large flat spring box 7 and the outside of the stainless steel flat spring 8 is connected to the large flat spring box 7. The inside of the stainless steel flat spring 8 is connected to the starting wheel 10, and the starting wheel 10 is fixed to the center shaft 101 by a screw 11 in the center hole.

[0024] Further refinement of the embodiment of the present invention, such as Figure 1 As shown, the screw 11 is a hexagonal flange screw 11.

[0025] Further refinement of the embodiment of the present invention is as follows: Figure 1 As shown, the one-way needle roller bearing 9 adopts a hexagonal one-way needle roller bearing 9.

[0026] In a further refinement of the embodiment of the present invention, the large flat spring box 7 is made of plastic.

[0027] The workflow of this utility model:

[0028] When the operator pulls the handle 15, the pull rope 4 drives the rope wheel 3 to rotate, and the recoil finger 5 rotates due to the friction resistance of the compressed spring 13, thereby driving the lever 6 to swing outward, and then the lever 6 will contact the outer side of the large flat spring box 7 and then drive the large flat spring box 7 to rotate (specifically, before pulling the pull rope 4, the lever 6 will not be pulled outward. At the moment of pulling, the rope wheel 3 starts to rotate with the lever 6. The recoil finger 5 will have a certain resistance due to the pressure on the spring and will be stationary for a moment; then the lever 6 contacts the recoil finger 5, and will also be subject to resistance. It will swing outward along the direction of the recoil finger 5. After swinging to the limit position, the lever 6 will rotate with the recoil finger 5. It should be noted that the recoil finger 5 will always be subject to the friction resistance of the compressed spring 13 during rotation;

[0029] At this time, the starter wheel 10 is stationary (because the starter wheel 10 and the dial 12 are matched together, the engine crankshaft resistance prevents the starter wheel 10 from rotating through the dial 12), thereby realizing the force storage effect of the stainless steel flat spring 8;

[0030] When the operator releases the handle 15, the small flat spring 2 drives the handle 15 to retract and the rope wheel 3 to rotate in the opposite direction. The recoil claw 5 rotates due to the friction resistance of the compression spring 13, thereby driving the lever 6 to swing inward and disengage from the large flat spring box 7. Since the large flat spring box 7 is equipped with a one-way needle bearing 9, it can remain stationary.

[0031] Then the operator repeats the above process 4-5 times. When the stainless steel flat spring 8 accumulates force to overcome the engine starting torque, the stainless steel flat spring 8 releases the force, driving the starter wheel 10 and the dial 12 to rotate rapidly, thereby achieving the purpose of starting the engine.

[0032] Compared with the prior art, this device uses two levers 6 and a large flat spring box 7 made of plastic parts, which has the following significance:

[0033] 1. When two levers 6 move the large flat spring box 7, the idle stroke will be shorter than that of one lever 6, which is beneficial to improving starting efficiency;

[0034] 2. When the two levers 6 move the large flat spring box 7, the forces are symmetrical, which reduces the wear of the contact position and is beneficial to increasing the service life of the starter.

[0035] 3. The large flat spring box 7 is changed to a plastic part to reduce product weight and manufacturing cost.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A starting device for a gasoline engine, characterized in that: It includes a housing (1), a central shaft (101), a through hole (102), a small flat spring (2), a rope pulley (3), a pull rope (4), a recoil pawl (5), a lever (6), a large flat spring box (7), a stainless steel flat spring (8), a one-way needle bearing (9), a starting wheel (10), a screw (11), a compression spring (13), a sleeve (14) and a handle (15). A central shaft (101) is provided in the housing (1) and a through hole (102) is provided on the housing (1). A small flat spring (2) passes through the central shaft (101) and contacts the end of the central shaft (101). The outer side of the small flat spring (2) is connected to the housing (1). The inner side of the small flat spring (2) is connected to a pulley (3) which is located on the outer side and sleeved on the central shaft (101). A pull rope (4) is wound around the pulley (3). One end of the pull rope (4) is connected to the pulley (3). The other end of the pull rope (4) passes through the through hole (102) and the inside of the sleeve (14) in sequence and is connected to the handle (15). Two shifting rods (6) are provided on the pulley (3) and matched therewith. A recoil shifting claw (5) which is sleeved on the central shaft (101) and matched therewith is provided on the outer side of the shifting rod (6). A compression spring (13) is also provided, one end of the compression spring (13) contacts the end of the central shaft (101), and the other end of the compression spring (13) contacts the recoil claw (5). A large flat spring box (7) is provided on the outside of the recoil claw (5) and is sleeved on the central shaft (101) and matched with the lever (6). A one-way needle bearing (9) is provided in the center hole of the large flat spring box (7) and the one-way needle bearing (9) is sleeved on the outside of the central shaft (101) and matched with the central shaft (101). The stainless steel flat spring (8) is in the large flat spring box (7) and the outside of the stainless steel flat spring (8) is connected to the large flat spring box (7). The inside of the stainless steel flat spring (8) is connected to the starting wheel (10), and the starting wheel (10) is fixed to the central shaft (101) through a screw (11) in the center hole.

2. A gasoline engine starting device according to claim 1, characterized in that: The screw (11) is a hexagonal flange screw.

3. A gasoline engine starting device according to claim 1, characterized in that: The one-way needle roller bearing (9) adopts a hexagonal one-way needle roller bearing.

4. A gasoline engine starting device according to claim 1, characterized in that: The large flat spring box (7) is made of plastic material.

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